Unnamed repository; edit this file 'description' to name the repository.
:arrow_up: rust-analyzer
111 files changed, 5774 insertions, 5108 deletions
diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml index 0c81ff0789..a70252fa65 100644 --- a/.github/workflows/ci.yaml +++ b/.github/workflows/ci.yaml @@ -101,7 +101,7 @@ jobs: - name: Install Nodejs uses: actions/setup-node@v1 with: - node-version: 14.x + node-version: 16.x - name: Install xvfb if: matrix.os == 'ubuntu-latest' diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml index ca8eb1309d..3c36c4fb84 100644 --- a/.github/workflows/release.yaml +++ b/.github/workflows/release.yaml @@ -68,7 +68,7 @@ jobs: - name: Install Node.js uses: actions/setup-node@v1 with: - node-version: 14.x + node-version: 16.x - name: Update apt repositories if: matrix.target == 'aarch64-unknown-linux-gnu' || matrix.target == 'arm-unknown-linux-gnueabihf' @@ -133,7 +133,7 @@ jobs: container: image: rust:alpine volumes: - - /usr/local/cargo/registry + - /usr/local/cargo/registry:/usr/local/cargo/registry steps: - name: Install dependencies @@ -176,7 +176,7 @@ jobs: - name: Install Nodejs uses: actions/setup-node@v1 with: - node-version: 14.x + node-version: 16.x - run: echo "TAG=$(date --iso -u)" >> $GITHUB_ENV if: github.ref == 'refs/heads/release' @@ -253,9 +253,9 @@ jobs: - name: Publish Extension (Code Marketplace, nightly) if: github.ref != 'refs/heads/release' && (github.repository == 'rust-analyzer/rust-analyzer' || github.repository == 'rust-lang/rust-analyzer') working-directory: ./editors/code - run: npx vsce publish --pat ${{ secrets.MARKETPLACE_TOKEN }} --packagePath ../../dist/rust-analyzer-*.vsix --pre-release + run: npx vsce publish --pat ${{ secrets.MARKETPLACE_TOKEN }} --packagePath ../../dist/rust-analyzer-*.vsix - name: Publish Extension (OpenVSX, nightly) if: github.ref != 'refs/heads/release' && (github.repository == 'rust-analyzer/rust-analyzer' || github.repository == 'rust-lang/rust-analyzer') working-directory: ./editors/code - run: npx ovsx publish --pat ${{ secrets.OPENVSX_TOKEN }} --packagePath ../../dist/rust-analyzer-*.vsix --pre-release + run: npx ovsx publish --pat ${{ secrets.OPENVSX_TOKEN }} --packagePath ../../dist/rust-analyzer-*.vsix diff --git a/.vscode/launch.json b/.vscode/launch.json index 021b8f048c..1e21214ffc 100644 --- a/.vscode/launch.json +++ b/.vscode/launch.json @@ -78,7 +78,7 @@ "request": "launch", "runtimeExecutable": "${execPath}", "args": [ - "--disable-extension", "matklad.rust-analyzer", + "--disable-extension", "rust-lang.rust-analyzer", "--extensionDevelopmentPath=${workspaceFolder}/editors/code" ], "outFiles": [ diff --git a/Cargo.lock b/Cargo.lock index 703f0e5b8a..7c6796d70b 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -710,6 +710,7 @@ dependencies = [ "ide-db", "itertools", "profile", + "serde_json", "sourcegen", "stdx", "syntax", diff --git a/crates/base-db/src/input.rs b/crates/base-db/src/input.rs index 9b5a10acfb..9580ce8007 100644 --- a/crates/base-db/src/input.rs +++ b/crates/base-db/src/input.rs @@ -6,7 +6,7 @@ //! actual IO. See `vfs` and `project_model` in the `rust-analyzer` crate for how //! actual IO is done and lowered to input. -use std::{fmt, iter::FromIterator, ops, panic::RefUnwindSafe, str::FromStr, sync::Arc}; +use std::{fmt, ops, panic::RefUnwindSafe, str::FromStr, sync::Arc}; use cfg::CfgOptions; use rustc_hash::{FxHashMap, FxHashSet}; diff --git a/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs b/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs index 92dffa7f37..4f626105a5 100644 --- a/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs +++ b/crates/hir-def/src/macro_expansion_tests/builtin_fn_macro.rs @@ -295,13 +295,13 @@ fn test_concat_expand() { #[rustc_builtin_macro] macro_rules! concat {} -fn main() { concat!("foo", "r", 0, r#"bar"#, "\n", false); } +fn main() { concat!("foo", "r", 0, r#"bar"#, "\n", false, '"', '\0'); } "##, expect![[r##" #[rustc_builtin_macro] macro_rules! concat {} -fn main() { "foor0bar\nfalse"; } +fn main() { "foor0bar\nfalse\"\u{0}"; } "##]], ); } diff --git a/crates/hir-def/src/macro_expansion_tests/mbe.rs b/crates/hir-def/src/macro_expansion_tests/mbe.rs index 30d39d52f3..457e43925c 100644 --- a/crates/hir-def/src/macro_expansion_tests/mbe.rs +++ b/crates/hir-def/src/macro_expansion_tests/mbe.rs @@ -885,7 +885,7 @@ macro_rules! m { ($t:ty) => ( fn bar() -> $ t {} ) } -fn bar() -> & 'a Baz<u8> {} +fn bar() -> &'a Baz<u8> {} fn bar() -> extern "Rust"fn() -> Ret {} "#]], @@ -1578,7 +1578,7 @@ macro_rules !register_methods { ($$($val: expr), *) = > { struct Foo; impl Foo { - $(fn $method()-> & 'static[u32] { + $(fn $method()-> &'static[u32] { &[$$($$val), *] } )* @@ -1591,10 +1591,10 @@ macro_rules !implement_methods { ($($val: expr), *) = > { struct Foo; impl Foo { - fn alpha()-> & 'static[u32] { + fn alpha()-> &'static[u32] { &[$($val), *] } - fn beta()-> & 'static[u32] { + fn beta()-> &'static[u32] { &[$($val), *] } } @@ -1602,10 +1602,10 @@ macro_rules !implement_methods { } struct Foo; impl Foo { - fn alpha() -> & 'static[u32] { + fn alpha() -> &'static[u32] { &[1, 2, 3] } - fn beta() -> & 'static[u32] { + fn beta() -> &'static[u32] { &[1, 2, 3] } } diff --git a/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs b/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs index 2dff4adf2e..d2505e7caf 100644 --- a/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs +++ b/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs @@ -166,7 +166,7 @@ macro_rules! int_base { } } #[stable(feature = "rust1", since = "1.0.0")] impl fmt::Binary for isize { - fn fmt(&self , f: &mut fmt::Formatter< '_>) -> fmt::Result { + fn fmt(&self , f: &mut fmt::Formatter<'_>) -> fmt::Result { Binary.fmt_int(*self as usize, f) } } @@ -724,7 +724,7 @@ macro_rules! delegate_impl { } } } -impl <> Data for & 'amut G where G: Data {} +impl <> Data for &'amut G where G: Data {} "##]], ); } diff --git a/crates/hir-def/src/macro_expansion_tests/mbe/tt_conversion.rs b/crates/hir-def/src/macro_expansion_tests/mbe/tt_conversion.rs index 0710b1ac3d..b8d2ca687c 100644 --- a/crates/hir-def/src/macro_expansion_tests/mbe/tt_conversion.rs +++ b/crates/hir-def/src/macro_expansion_tests/mbe/tt_conversion.rs @@ -78,7 +78,7 @@ m!(static bar: &'static str = "hello";); macro_rules! m { ($($t:tt)*) => { $($t)*} } -static bar: & 'static str = "hello"; +static bar: &'static str = "hello"; "#]], ); } diff --git a/crates/hir-def/src/macro_expansion_tests/proc_macros.rs b/crates/hir-def/src/macro_expansion_tests/proc_macros.rs index 72c44a0fbc..029821e5e8 100644 --- a/crates/hir-def/src/macro_expansion_tests/proc_macros.rs +++ b/crates/hir-def/src/macro_expansion_tests/proc_macros.rs @@ -87,7 +87,7 @@ fn foo() { bar.; blub } fn foo() { bar.; blub } fn foo() { - bar. ; + bar.; blub }"##]], ); diff --git a/crates/hir-def/src/nameres/mod_resolution.rs b/crates/hir-def/src/nameres/mod_resolution.rs index 52a620fe22..99f7f1b549 100644 --- a/crates/hir-def/src/nameres/mod_resolution.rs +++ b/crates/hir-def/src/nameres/mod_resolution.rs @@ -73,10 +73,12 @@ impl ModDir { candidate_files.push(self.dir_path.join_attr(attr_path, self.root_non_dir_owner)) } None if file_id.is_include_macro(db.upcast()) => { + let name = name.unescaped(); candidate_files.push(format!("{}.rs", name)); candidate_files.push(format!("{}/mod.rs", name)); } None => { + let name = name.unescaped(); candidate_files.push(format!("{}{}.rs", self.dir_path.0, name)); candidate_files.push(format!("{}{}/mod.rs", self.dir_path.0, name)); } diff --git a/crates/hir-def/src/nameres/tests/mod_resolution.rs b/crates/hir-def/src/nameres/tests/mod_resolution.rs index 79a74873b4..3fa585574d 100644 --- a/crates/hir-def/src/nameres/tests/mod_resolution.rs +++ b/crates/hir-def/src/nameres/tests/mod_resolution.rs @@ -132,9 +132,9 @@ pub struct Bar; expect![[r#" crate Bar: t v - async: t + r#async: t - crate::async + crate::r#async Bar: t v "#]], ); diff --git a/crates/hir-expand/src/builtin_fn_macro.rs b/crates/hir-expand/src/builtin_fn_macro.rs index 76da7c9f1e..8befa7f7da 100644 --- a/crates/hir-expand/src/builtin_fn_macro.rs +++ b/crates/hir-expand/src/builtin_fn_macro.rs @@ -251,9 +251,13 @@ fn format_args_expand( } for arg in &mut args { // Remove `key =`. - if matches!(arg.token_trees.get(1), Some(tt::TokenTree::Leaf(tt::Leaf::Punct(p))) if p.char == '=' && p.spacing != tt::Spacing::Joint) + if matches!(arg.token_trees.get(1), Some(tt::TokenTree::Leaf(tt::Leaf::Punct(p))) if p.char == '=') { - arg.token_trees.drain(..2); + // but not with `==` + if !matches!(arg.token_trees.get(2), Some(tt::TokenTree::Leaf(tt::Leaf::Punct(p))) if p.char == '=' ) + { + arg.token_trees.drain(..2); + } } } let _format_string = args.remove(0); @@ -357,6 +361,12 @@ fn unquote_str(lit: &tt::Literal) -> Option<String> { token.value().map(|it| it.into_owned()) } +fn unquote_char(lit: &tt::Literal) -> Option<char> { + let lit = ast::make::tokens::literal(&lit.to_string()); + let token = ast::Char::cast(lit)?; + token.value() +} + fn unquote_byte_string(lit: &tt::Literal) -> Option<Vec<u8>> { let lit = ast::make::tokens::literal(&lit.to_string()); let token = ast::ByteString::cast(lit)?; @@ -408,8 +418,12 @@ fn concat_expand( // concat works with string and char literals, so remove any quotes. // It also works with integer, float and boolean literals, so just use the rest // as-is. - let component = unquote_str(it).unwrap_or_else(|| it.text.to_string()); - text.push_str(&component); + if let Some(c) = unquote_char(it) { + text.push(c); + } else { + let component = unquote_str(it).unwrap_or_else(|| it.text.to_string()); + text.push_str(&component); + } } // handle boolean literals tt::TokenTree::Leaf(tt::Leaf::Ident(id)) diff --git a/crates/hir-expand/src/fixup.rs b/crates/hir-expand/src/fixup.rs index e46f43a878..893e6fe4b8 100644 --- a/crates/hir-expand/src/fixup.rs +++ b/crates/hir-expand/src/fixup.rs @@ -67,7 +67,6 @@ pub(crate) fn fixup_syntax(node: &SyntaxNode) -> SyntaxFixups { preorder.skip_subtree(); continue; } - // In some other situations, we can fix things by just appending some tokens. let end_range = TextRange::empty(node.text_range().end()); match_ast! { @@ -194,7 +193,75 @@ pub(crate) fn fixup_syntax(node: &SyntaxNode) -> SyntaxFixups { } }, // FIXME: foo:: - // FIXME: for, match etc. + ast::MatchExpr(it) => { + if it.expr().is_none() { + let match_token = match it.match_token() { + Some(t) => t, + None => continue + }; + append.insert(match_token.into(), vec![ + SyntheticToken { + kind: SyntaxKind::IDENT, + text: "__ra_fixup".into(), + range: end_range, + id: EMPTY_ID + }, + ]); + } + if it.match_arm_list().is_none() { + // No match arms + append.insert(node.clone().into(), vec![ + SyntheticToken { + kind: SyntaxKind::L_CURLY, + text: "{".into(), + range: end_range, + id: EMPTY_ID, + }, + SyntheticToken { + kind: SyntaxKind::R_CURLY, + text: "}".into(), + range: end_range, + id: EMPTY_ID, + }, + ]); + } + }, + ast::ForExpr(it) => { + let for_token = match it.for_token() { + Some(token) => token, + None => continue + }; + + let [pat, in_token, iter] = [ + (SyntaxKind::UNDERSCORE, "_"), + (SyntaxKind::IN_KW, "in"), + (SyntaxKind::IDENT, "__ra_fixup") + ].map(|(kind, text)| SyntheticToken { kind, text: text.into(), range: end_range, id: EMPTY_ID}); + + if it.pat().is_none() && it.in_token().is_none() && it.iterable().is_none() { + append.insert(for_token.into(), vec![pat, in_token, iter]); + // does something funky -- see test case for_no_pat + } else if it.pat().is_none() { + append.insert(for_token.into(), vec![pat]); + } + + if it.loop_body().is_none() { + append.insert(node.clone().into(), vec![ + SyntheticToken { + kind: SyntaxKind::L_CURLY, + text: "{".into(), + range: end_range, + id: EMPTY_ID, + }, + SyntheticToken { + kind: SyntaxKind::R_CURLY, + text: "}".into(), + range: end_range, + id: EMPTY_ID, + }, + ]); + } + }, _ => (), } } @@ -288,6 +355,111 @@ mod tests { } #[test] + fn just_for_token() { + check( + r#" +fn foo() { + for +} +"#, + expect![[r#" +fn foo () {for _ in __ra_fixup {}} +"#]], + ) + } + + #[test] + fn for_no_iter_pattern() { + check( + r#" +fn foo() { + for {} +} +"#, + expect![[r#" +fn foo () {for _ in __ra_fixup {}} +"#]], + ) + } + + #[test] + fn for_no_body() { + check( + r#" +fn foo() { + for bar in qux +} +"#, + expect![[r#" +fn foo () {for bar in qux {}} +"#]], + ) + } + + // FIXME: https://github.com/rust-lang/rust-analyzer/pull/12937#discussion_r937633695 + #[test] + fn for_no_pat() { + check( + r#" +fn foo() { + for in qux { + + } +} +"#, + expect![[r#" +fn foo () {__ra_fixup} +"#]], + ) + } + + #[test] + fn match_no_expr_no_arms() { + check( + r#" +fn foo() { + match +} +"#, + expect![[r#" +fn foo () {match __ra_fixup {}} +"#]], + ) + } + + #[test] + fn match_expr_no_arms() { + check( + r#" +fn foo() { + match x { + + } +} +"#, + expect![[r#" +fn foo () {match x {}} +"#]], + ) + } + + #[test] + fn match_no_expr() { + check( + r#" +fn foo() { + match { + _ => {} + } +} +"#, + expect![[r#" +fn foo () {match __ra_fixup {}} +"#]], + ) + } + + #[test] fn incomplete_field_expr_1() { check( r#" @@ -296,7 +468,7 @@ fn foo() { } "#, expect![[r#" -fn foo () {a . __ra_fixup} +fn foo () {a .__ra_fixup} "#]], ) } @@ -306,11 +478,11 @@ fn foo () {a . __ra_fixup} check( r#" fn foo() { - a. ; + a.; } "#, expect![[r#" -fn foo () {a . __ra_fixup ;} +fn foo () {a .__ra_fixup ;} "#]], ) } @@ -320,12 +492,12 @@ fn foo () {a . __ra_fixup ;} check( r#" fn foo() { - a. ; + a.; bar(); } "#, expect![[r#" -fn foo () {a . __ra_fixup ; bar () ;} +fn foo () {a .__ra_fixup ; bar () ;} "#]], ) } @@ -353,7 +525,7 @@ fn foo() { } "#, expect![[r#" -fn foo () {let x = a . __ra_fixup ;} +fn foo () {let x = a .__ra_fixup ;} "#]], ) } @@ -369,7 +541,7 @@ fn foo() { } "#, expect![[r#" -fn foo () {a . b ; bar () ;} +fn foo () {a .b ; bar () ;} "#]], ) } diff --git a/crates/hir-expand/src/mod_path.rs b/crates/hir-expand/src/mod_path.rs index fea09521e8..d0f73ec820 100644 --- a/crates/hir-expand/src/mod_path.rs +++ b/crates/hir-expand/src/mod_path.rs @@ -22,7 +22,7 @@ pub struct ModPath { } #[derive(Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] -pub struct EscapedModPath<'a>(&'a ModPath); +pub struct UnescapedModPath<'a>(&'a ModPath); #[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)] pub enum PathKind { @@ -102,8 +102,8 @@ impl ModPath { } } - pub fn escaped(&self) -> EscapedModPath<'_> { - EscapedModPath(self) + pub fn unescaped(&self) -> UnescapedModPath<'_> { + UnescapedModPath(self) } fn _fmt(&self, f: &mut fmt::Formatter<'_>, escaped: bool) -> fmt::Result { @@ -134,9 +134,9 @@ impl ModPath { } first_segment = false; if escaped { - segment.escaped().fmt(f)? - } else { segment.fmt(f)? + } else { + segment.unescaped().fmt(f)? }; } Ok(()) @@ -145,13 +145,13 @@ impl ModPath { impl Display for ModPath { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - self._fmt(f, false) + self._fmt(f, true) } } -impl<'a> Display for EscapedModPath<'a> { +impl<'a> Display for UnescapedModPath<'a> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - self.0._fmt(f, true) + self.0._fmt(f, false) } } diff --git a/crates/hir-expand/src/name.rs b/crates/hir-expand/src/name.rs index 47d191822d..87c663eec8 100644 --- a/crates/hir-expand/src/name.rs +++ b/crates/hir-expand/src/name.rs @@ -7,12 +7,16 @@ use syntax::{ast, SmolStr, SyntaxKind}; /// `Name` is a wrapper around string, which is used in hir for both references /// and declarations. In theory, names should also carry hygiene info, but we are /// not there yet! +/// +/// Note that `Name` holds and prints escaped name i.e. prefixed with "r#" when it +/// is a raw identifier. Use [`unescaped()`][Name::unescaped] when you need the +/// name without "r#". #[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)] pub struct Name(Repr); -/// `EscapedName` will add a prefix "r#" to the wrapped `Name` when it is a raw identifier +/// Wrapper of `Name` to print the name without "r#" even when it is a raw identifier. #[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)] -pub struct EscapedName<'a>(&'a Name); +pub struct UnescapedName<'a>(&'a Name); #[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)] enum Repr { @@ -34,37 +38,26 @@ fn is_raw_identifier(name: &str) -> bool { is_keyword && !matches!(name, "self" | "crate" | "super" | "Self") } -impl<'a> fmt::Display for EscapedName<'a> { +impl<'a> fmt::Display for UnescapedName<'a> { fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match &self.0 .0 { Repr::Text(text) => { - if is_raw_identifier(text) { - write!(f, "r#{}", &text) - } else { - fmt::Display::fmt(&text, f) - } + let text = text.strip_prefix("r#").unwrap_or(text); + fmt::Display::fmt(&text, f) } Repr::TupleField(idx) => fmt::Display::fmt(&idx, f), } } } -impl<'a> EscapedName<'a> { - pub fn is_escaped(&self) -> bool { - match &self.0 .0 { - Repr::Text(it) => is_raw_identifier(&it), - Repr::TupleField(_) => false, - } - } - - /// Returns the textual representation of this name as a [`SmolStr`]. - /// Prefer using this over [`ToString::to_string`] if possible as this conversion is cheaper in - /// the general case. +impl<'a> UnescapedName<'a> { + /// Returns the textual representation of this name as a [`SmolStr`]. Prefer using this over + /// [`ToString::to_string`] if possible as this conversion is cheaper in the general case. pub fn to_smol_str(&self) -> SmolStr { match &self.0 .0 { Repr::Text(it) => { - if is_raw_identifier(&it) { - SmolStr::from_iter(["r#", &it]) + if let Some(stripped) = it.strip_prefix("r#") { + SmolStr::new(stripped) } else { it.clone() } @@ -97,9 +90,11 @@ impl Name { /// Resolve a name from the text of token. fn resolve(raw_text: &str) -> Name { + // When `raw_text` starts with "r#" but the name does not coincide with any + // keyword, we never need the prefix so we strip it. match raw_text.strip_prefix("r#") { - Some(text) => Name::new_text(SmolStr::new(text)), - None => Name::new_text(raw_text.into()), + Some(text) if !is_raw_identifier(text) => Name::new_text(SmolStr::new(text)), + _ => Name::new_text(raw_text.into()), } } @@ -142,8 +137,15 @@ impl Name { } } - pub fn escaped(&self) -> EscapedName<'_> { - EscapedName(self) + pub fn unescaped(&self) -> UnescapedName<'_> { + UnescapedName(self) + } + + pub fn is_escaped(&self) -> bool { + match &self.0 { + Repr::Text(it) => it.starts_with("r#"), + Repr::TupleField(_) => false, + } } } diff --git a/crates/hir-expand/src/quote.rs b/crates/hir-expand/src/quote.rs index 82f410ecda..e839e97bf0 100644 --- a/crates/hir-expand/src/quote.rs +++ b/crates/hir-expand/src/quote.rs @@ -196,8 +196,8 @@ impl_to_to_tokentrees! { tt::Literal => self { self }; tt::Ident => self { self }; tt::Punct => self { self }; - &str => self { tt::Literal{text: format!("\"{}\"", self.escape_debug()).into(), id: tt::TokenId::unspecified()}}; - String => self { tt::Literal{text: format!("\"{}\"", self.escape_debug()).into(), id: tt::TokenId::unspecified()}} + &str => self { tt::Literal{text: format!("\"{}\"", self.escape_default()).into(), id: tt::TokenId::unspecified()}}; + String => self { tt::Literal{text: format!("\"{}\"", self.escape_default()).into(), id: tt::TokenId::unspecified()}} } #[cfg(test)] diff --git a/crates/hir-ty/src/consteval.rs b/crates/hir-ty/src/consteval.rs index 0495a4e64c..6ecb6e6fd1 100644 --- a/crates/hir-ty/src/consteval.rs +++ b/crates/hir-ty/src/consteval.rs @@ -2,7 +2,6 @@ use std::{ collections::HashMap, - convert::TryInto, fmt::{Display, Write}, }; diff --git a/crates/hir-ty/src/infer/pat.rs b/crates/hir-ty/src/infer/pat.rs index 5e7320a5dd..53259d66de 100644 --- a/crates/hir-ty/src/infer/pat.rs +++ b/crates/hir-ty/src/infer/pat.rs @@ -14,8 +14,9 @@ use crate::{ consteval::intern_const_scalar, infer::{BindingMode, Expectation, InferenceContext, TypeMismatch}, lower::lower_to_chalk_mutability, - static_lifetime, ConcreteConst, ConstValue, Interner, Substitution, Ty, TyBuilder, TyExt, - TyKind, + primitive::UintTy, + static_lifetime, ConcreteConst, ConstValue, Interner, Scalar, Substitution, Ty, TyBuilder, + TyExt, TyKind, }; use super::PatLike; @@ -294,7 +295,29 @@ impl<'a> InferenceContext<'a> { let start_ty = self.infer_expr(*start, &Expectation::has_type(expected.clone())); self.infer_expr(*end, &Expectation::has_type(start_ty)) } - Pat::Lit(expr) => self.infer_expr(*expr, &Expectation::has_type(expected.clone())), + &Pat::Lit(expr) => { + // FIXME: using `Option` here is a workaround until we can use if-let chains in stable. + let mut pat_ty = None; + + // Like slice patterns, byte string patterns can denote both `&[u8; N]` and `&[u8]`. + if let Expr::Literal(Literal::ByteString(_)) = self.body[expr] { + if let Some((inner, ..)) = expected.as_reference() { + let inner = self.resolve_ty_shallow(inner); + if matches!(inner.kind(Interner), TyKind::Slice(_)) { + let elem_ty = TyKind::Scalar(Scalar::Uint(UintTy::U8)).intern(Interner); + let slice_ty = TyKind::Slice(elem_ty).intern(Interner); + let ty = TyKind::Ref(Mutability::Not, static_lifetime(), slice_ty) + .intern(Interner); + self.write_expr_ty(expr, ty.clone()); + pat_ty = Some(ty); + } + } + } + + pat_ty.unwrap_or_else(|| { + self.infer_expr(expr, &Expectation::has_type(expected.clone())) + }) + } Pat::Box { inner } => match self.resolve_boxed_box() { Some(box_adt) => { let (inner_ty, alloc_ty) = match expected.as_adt() { @@ -343,7 +366,9 @@ fn is_non_ref_pat(body: &hir_def::body::Body, pat: PatId) -> bool { // FIXME: ConstBlock/Path/Lit might actually evaluate to ref, but inference is unimplemented. Pat::Path(..) => true, Pat::ConstBlock(..) => true, - Pat::Lit(expr) => !matches!(body[*expr], Expr::Literal(Literal::String(..))), + Pat::Lit(expr) => { + !matches!(body[*expr], Expr::Literal(Literal::String(..) | Literal::ByteString(..))) + } Pat::Bind { mode: BindingAnnotation::Mutable | BindingAnnotation::Unannotated, subpat: Some(subpat), diff --git a/crates/hir-ty/src/tests/patterns.rs b/crates/hir-ty/src/tests/patterns.rs index 399553356b..94efe7bc11 100644 --- a/crates/hir-ty/src/tests/patterns.rs +++ b/crates/hir-ty/src/tests/patterns.rs @@ -316,6 +316,51 @@ fn infer_pattern_match_string_literal() { } #[test] +fn infer_pattern_match_byte_string_literal() { + check_infer_with_mismatches( + r#" + //- minicore: index + struct S; + impl<T, const N: usize> core::ops::Index<S> for [T; N] { + type Output = [u8]; + fn index(&self, index: core::ops::RangeFull) -> &Self::Output { + loop {} + } + } + fn test(v: [u8; 3]) { + if let b"foo" = &v[S] {} + if let b"foo" = &v {} + } + "#, + expect![[r#" + 105..109 'self': &[T; N] + 111..116 'index': {unknown} + 157..180 '{ ... }': &[u8] + 167..174 'loop {}': ! + 172..174 '{}': () + 191..192 'v': [u8; 3] + 203..261 '{ ...v {} }': () + 209..233 'if let...[S] {}': () + 212..230 'let b"... &v[S]': bool + 216..222 'b"foo"': &[u8] + 216..222 'b"foo"': &[u8] + 225..230 '&v[S]': &[u8] + 226..227 'v': [u8; 3] + 226..230 'v[S]': [u8] + 228..229 'S': S + 231..233 '{}': () + 238..259 'if let... &v {}': () + 241..256 'let b"foo" = &v': bool + 245..251 'b"foo"': &[u8; 3] + 245..251 'b"foo"': &[u8; 3] + 254..256 '&v': &[u8; 3] + 255..256 'v': [u8; 3] + 257..259 '{}': () + "#]], + ); +} + +#[test] fn infer_pattern_match_or() { check_infer_with_mismatches( r#" diff --git a/crates/hir/src/diagnostics.rs b/crates/hir/src/diagnostics.rs index 6c6c11ea4e..50374f4b3f 100644 --- a/crates/hir/src/diagnostics.rs +++ b/crates/hir/src/diagnostics.rs @@ -14,6 +14,7 @@ use crate::{MacroKind, Type}; macro_rules! diagnostics { ($($diag:ident,)*) => { + #[derive(Debug)] pub enum AnyDiagnostic {$( $diag(Box<$diag>), )*} diff --git a/crates/hir/src/source_analyzer.rs b/crates/hir/src/source_analyzer.rs index f5e2e44307..ae2896e193 100644 --- a/crates/hir/src/source_analyzer.rs +++ b/crates/hir/src/source_analyzer.rs @@ -368,6 +368,7 @@ impl SourceAnalyzer { let local = if field.name_ref().is_some() { None } else { + // Shorthand syntax, resolve to the local let path = ModPath::from_segments(PathKind::Plain, once(local_name.clone())); match self.resolver.resolve_path_in_value_ns_fully(db.upcast(), &path) { Some(ValueNs::LocalBinding(pat_id)) => { diff --git a/crates/ide-assists/src/assist_context.rs b/crates/ide-assists/src/assist_context.rs index f9b4266142..8c7670e0cb 100644 --- a/crates/ide-assists/src/assist_context.rs +++ b/crates/ide-assists/src/assist_context.rs @@ -1,28 +1,20 @@ //! See [`AssistContext`]. -use std::mem; - use hir::Semantics; -use ide_db::{ - base_db::{AnchoredPathBuf, FileId, FileRange}, - SnippetCap, -}; -use ide_db::{ - label::Label, - source_change::{FileSystemEdit, SourceChange}, - RootDatabase, -}; +use ide_db::base_db::{FileId, FileRange}; +use ide_db::{label::Label, RootDatabase}; use syntax::{ algo::{self, find_node_at_offset, find_node_at_range}, - AstNode, AstToken, Direction, SourceFile, SyntaxElement, SyntaxKind, SyntaxNode, SyntaxNodePtr, - SyntaxToken, TextRange, TextSize, TokenAtOffset, + AstNode, AstToken, Direction, SourceFile, SyntaxElement, SyntaxKind, SyntaxToken, TextRange, + TextSize, TokenAtOffset, }; -use text_edit::{TextEdit, TextEditBuilder}; use crate::{ assist_config::AssistConfig, Assist, AssistId, AssistKind, AssistResolveStrategy, GroupLabel, }; +pub(crate) use ide_db::source_change::{SourceChangeBuilder, TreeMutator}; + /// `AssistContext` allows to apply an assist or check if it could be applied. /// /// Assists use a somewhat over-engineered approach, given the current needs. @@ -163,7 +155,7 @@ impl Assists { id: AssistId, label: impl Into<String>, target: TextRange, - f: impl FnOnce(&mut AssistBuilder), + f: impl FnOnce(&mut SourceChangeBuilder), ) -> Option<()> { let mut f = Some(f); self.add_impl(None, id, label.into(), target, &mut |it| f.take().unwrap()(it)) @@ -175,7 +167,7 @@ impl Assists { id: AssistId, label: impl Into<String>, target: TextRange, - f: impl FnOnce(&mut AssistBuilder), + f: impl FnOnce(&mut SourceChangeBuilder), ) -> Option<()> { let mut f = Some(f); self.add_impl(Some(group), id, label.into(), target, &mut |it| f.take().unwrap()(it)) @@ -187,7 +179,7 @@ impl Assists { id: AssistId, label: String, target: TextRange, - f: &mut dyn FnMut(&mut AssistBuilder), + f: &mut dyn FnMut(&mut SourceChangeBuilder), ) -> Option<()> { if !self.is_allowed(&id) { return None; @@ -195,7 +187,7 @@ impl Assists { let mut trigger_signature_help = false; let source_change = if self.resolve.should_resolve(&id) { - let mut builder = AssistBuilder::new(self.file); + let mut builder = SourceChangeBuilder::new(self.file); f(&mut builder); trigger_signature_help = builder.trigger_signature_help; Some(builder.finish()) @@ -216,132 +208,3 @@ impl Assists { } } } - -pub(crate) struct AssistBuilder { - edit: TextEditBuilder, - file_id: FileId, - source_change: SourceChange, - trigger_signature_help: bool, - - /// Maps the original, immutable `SyntaxNode` to a `clone_for_update` twin. - mutated_tree: Option<TreeMutator>, -} - -pub(crate) struct TreeMutator { - immutable: SyntaxNode, - mutable_clone: SyntaxNode, -} - -impl TreeMutator { - pub(crate) fn new(immutable: &SyntaxNode) -> TreeMutator { - let immutable = immutable.ancestors().last().unwrap(); - let mutable_clone = immutable.clone_for_update(); - TreeMutator { immutable, mutable_clone } - } - - pub(crate) fn make_mut<N: AstNode>(&self, node: &N) -> N { - N::cast(self.make_syntax_mut(node.syntax())).unwrap() - } - - pub(crate) fn make_syntax_mut(&self, node: &SyntaxNode) -> SyntaxNode { - let ptr = SyntaxNodePtr::new(node); - ptr.to_node(&self.mutable_clone) - } -} - -impl AssistBuilder { - pub(crate) fn new(file_id: FileId) -> AssistBuilder { - AssistBuilder { - edit: TextEdit::builder(), - file_id, - source_change: SourceChange::default(), - trigger_signature_help: false, - mutated_tree: None, - } - } - - pub(crate) fn edit_file(&mut self, file_id: FileId) { - self.commit(); - self.file_id = file_id; - } - - fn commit(&mut self) { - if let Some(tm) = self.mutated_tree.take() { - algo::diff(&tm.immutable, &tm.mutable_clone).into_text_edit(&mut self.edit) - } - - let edit = mem::take(&mut self.edit).finish(); - if !edit.is_empty() { - self.source_change.insert_source_edit(self.file_id, edit); - } - } - - pub(crate) fn make_mut<N: AstNode>(&mut self, node: N) -> N { - self.mutated_tree.get_or_insert_with(|| TreeMutator::new(node.syntax())).make_mut(&node) - } - /// Returns a copy of the `node`, suitable for mutation. - /// - /// Syntax trees in rust-analyzer are typically immutable, and mutating - /// operations panic at runtime. However, it is possible to make a copy of - /// the tree and mutate the copy freely. Mutation is based on interior - /// mutability, and different nodes in the same tree see the same mutations. - /// - /// The typical pattern for an assist is to find specific nodes in the read - /// phase, and then get their mutable couterparts using `make_mut` in the - /// mutable state. - pub(crate) fn make_syntax_mut(&mut self, node: SyntaxNode) -> SyntaxNode { - self.mutated_tree.get_or_insert_with(|| TreeMutator::new(&node)).make_syntax_mut(&node) - } - - /// Remove specified `range` of text. - pub(crate) fn delete(&mut self, range: TextRange) { - self.edit.delete(range) - } - /// Append specified `text` at the given `offset` - pub(crate) fn insert(&mut self, offset: TextSize, text: impl Into<String>) { - self.edit.insert(offset, text.into()) - } - /// Append specified `snippet` at the given `offset` - pub(crate) fn insert_snippet( - &mut self, - _cap: SnippetCap, - offset: TextSize, - snippet: impl Into<String>, - ) { - self.source_change.is_snippet = true; - self.insert(offset, snippet); - } - /// Replaces specified `range` of text with a given string. - pub(crate) fn replace(&mut self, range: TextRange, replace_with: impl Into<String>) { - self.edit.replace(range, replace_with.into()) - } - /// Replaces specified `range` of text with a given `snippet`. - pub(crate) fn replace_snippet( - &mut self, - _cap: SnippetCap, - range: TextRange, - snippet: impl Into<String>, - ) { - self.source_change.is_snippet = true; - self.replace(range, snippet); - } - pub(crate) fn replace_ast<N: AstNode>(&mut self, old: N, new: N) { - algo::diff(old.syntax(), new.syntax()).into_text_edit(&mut self.edit) - } - pub(crate) fn create_file(&mut self, dst: AnchoredPathBuf, content: impl Into<String>) { - let file_system_edit = FileSystemEdit::CreateFile { dst, initial_contents: content.into() }; - self.source_change.push_file_system_edit(file_system_edit); - } - pub(crate) fn move_file(&mut self, src: FileId, dst: AnchoredPathBuf) { - let file_system_edit = FileSystemEdit::MoveFile { src, dst }; - self.source_change.push_file_system_edit(file_system_edit); - } - pub(crate) fn trigger_signature_help(&mut self) { - self.trigger_signature_help = true; - } - - fn finish(mut self) -> SourceChange { - self.commit(); - mem::take(&mut self.source_change) - } -} diff --git a/crates/ide-assists/src/handlers/add_missing_impl_members.rs b/crates/ide-assists/src/handlers/add_missing_impl_members.rs index c808c010c6..62cf5ab4f3 100644 --- a/crates/ide-assists/src/handlers/add_missing_impl_members.rs +++ b/crates/ide-assists/src/handlers/add_missing_impl_members.rs @@ -944,7 +944,7 @@ foo!(); struct Foo(usize); impl FooB for Foo { - $0fn foo< 'lt>(& 'lt self){} + $0fn foo<'lt>(&'lt self){} } "#, ) diff --git a/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs b/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs index 4ab8e93a29..d8f5227084 100644 --- a/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs +++ b/crates/ide-assists/src/handlers/convert_tuple_struct_to_named_struct.rs @@ -5,7 +5,7 @@ use syntax::{ match_ast, SyntaxNode, }; -use crate::{assist_context::AssistBuilder, AssistContext, AssistId, AssistKind, Assists}; +use crate::{assist_context::SourceChangeBuilder, AssistContext, AssistId, AssistKind, Assists}; // Assist: convert_tuple_struct_to_named_struct // @@ -80,7 +80,7 @@ pub(crate) fn convert_tuple_struct_to_named_struct( fn edit_struct_def( ctx: &AssistContext<'_>, - edit: &mut AssistBuilder, + edit: &mut SourceChangeBuilder, strukt: &Either<ast::Struct, ast::Variant>, tuple_fields: ast::TupleFieldList, names: Vec<ast::Name>, @@ -122,7 +122,7 @@ fn edit_struct_def( fn edit_struct_references( ctx: &AssistContext<'_>, - edit: &mut AssistBuilder, + edit: &mut SourceChangeBuilder, strukt: Either<hir::Struct, hir::Variant>, names: &[ast::Name], ) { @@ -132,7 +132,7 @@ fn edit_struct_references( }; let usages = strukt_def.usages(&ctx.sema).include_self_refs().all(); - let edit_node = |edit: &mut AssistBuilder, node: SyntaxNode| -> Option<()> { + let edit_node = |edit: &mut SourceChangeBuilder, node: SyntaxNode| -> Option<()> { match_ast! { match node { ast::TupleStructPat(tuple_struct_pat) => { @@ -203,7 +203,7 @@ fn edit_struct_references( fn edit_field_references( ctx: &AssistContext<'_>, - edit: &mut AssistBuilder, + edit: &mut SourceChangeBuilder, fields: impl Iterator<Item = ast::TupleField>, names: &[ast::Name], ) { diff --git a/crates/ide-assists/src/handlers/destructure_tuple_binding.rs b/crates/ide-assists/src/handlers/destructure_tuple_binding.rs index c1f57532bb..dc581ff3bd 100644 --- a/crates/ide-assists/src/handlers/destructure_tuple_binding.rs +++ b/crates/ide-assists/src/handlers/destructure_tuple_binding.rs @@ -8,7 +8,7 @@ use syntax::{ TextRange, }; -use crate::assist_context::{AssistBuilder, AssistContext, Assists}; +use crate::assist_context::{AssistContext, Assists, SourceChangeBuilder}; // Assist: destructure_tuple_binding // @@ -151,7 +151,7 @@ struct TupleData { } fn edit_tuple_assignment( ctx: &AssistContext<'_>, - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, data: &TupleData, in_sub_pattern: bool, ) { @@ -195,7 +195,7 @@ fn edit_tuple_assignment( fn edit_tuple_usages( data: &TupleData, - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, ctx: &AssistContext<'_>, in_sub_pattern: bool, ) { @@ -211,7 +211,7 @@ fn edit_tuple_usages( } fn edit_tuple_usage( ctx: &AssistContext<'_>, - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, usage: &FileReference, data: &TupleData, in_sub_pattern: bool, @@ -239,7 +239,7 @@ fn edit_tuple_usage( fn edit_tuple_field_usage( ctx: &AssistContext<'_>, - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, data: &TupleData, index: TupleIndex, ) { diff --git a/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs b/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs index a93648f2d3..dfb5652126 100644 --- a/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs +++ b/crates/ide-assists/src/handlers/extract_struct_from_enum_variant.rs @@ -20,7 +20,7 @@ use syntax::{ SyntaxNode, T, }; -use crate::{assist_context::AssistBuilder, AssistContext, AssistId, AssistKind, Assists}; +use crate::{assist_context::SourceChangeBuilder, AssistContext, AssistId, AssistKind, Assists}; // Assist: extract_struct_from_enum_variant // @@ -374,7 +374,7 @@ fn apply_references( fn process_references( ctx: &AssistContext<'_>, - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, visited_modules: &mut FxHashSet<Module>, enum_module_def: &ModuleDef, variant_hir_name: &Name, diff --git a/crates/ide-assists/src/handlers/generate_deref.rs b/crates/ide-assists/src/handlers/generate_deref.rs index b9637ee8d7..b484635121 100644 --- a/crates/ide-assists/src/handlers/generate_deref.rs +++ b/crates/ide-assists/src/handlers/generate_deref.rs @@ -8,7 +8,7 @@ use syntax::{ }; use crate::{ - assist_context::{AssistBuilder, AssistContext, Assists}, + assist_context::{AssistContext, Assists, SourceChangeBuilder}, utils::generate_trait_impl_text, AssistId, AssistKind, }; @@ -120,7 +120,7 @@ fn generate_tuple_deref(acc: &mut Assists, ctx: &AssistContext<'_>) -> Option<() } fn generate_edit( - edit: &mut AssistBuilder, + edit: &mut SourceChangeBuilder, strukt: ast::Struct, field_type_syntax: &SyntaxNode, field_name: impl Display, diff --git a/crates/ide-assists/src/handlers/introduce_named_lifetime.rs b/crates/ide-assists/src/handlers/introduce_named_lifetime.rs index ce91dd2370..2fc754e3e5 100644 --- a/crates/ide-assists/src/handlers/introduce_named_lifetime.rs +++ b/crates/ide-assists/src/handlers/introduce_named_lifetime.rs @@ -5,7 +5,7 @@ use syntax::{ AstNode, TextRange, }; -use crate::{assist_context::AssistBuilder, AssistContext, AssistId, AssistKind, Assists}; +use crate::{assist_context::SourceChangeBuilder, AssistContext, AssistId, AssistKind, Assists}; static ASSIST_NAME: &str = "introduce_named_lifetime"; static ASSIST_LABEL: &str = "Introduce named lifetime"; @@ -140,7 +140,7 @@ enum NeedsLifetime { } impl NeedsLifetime { - fn make_mut(self, builder: &mut AssistBuilder) -> Self { + fn make_mut(self, builder: &mut SourceChangeBuilder) -> Self { match self { Self::SelfParam(it) => Self::SelfParam(builder.make_mut(it)), Self::RefType(it) => Self::RefType(builder.make_mut(it)), diff --git a/crates/ide-assists/src/handlers/remove_unused_param.rs b/crates/ide-assists/src/handlers/remove_unused_param.rs index 59ea94ea1f..bd2e8fbe38 100644 --- a/crates/ide-assists/src/handlers/remove_unused_param.rs +++ b/crates/ide-assists/src/handlers/remove_unused_param.rs @@ -8,7 +8,8 @@ use syntax::{ use SyntaxKind::WHITESPACE; use crate::{ - assist_context::AssistBuilder, utils::next_prev, AssistContext, AssistId, AssistKind, Assists, + assist_context::SourceChangeBuilder, utils::next_prev, AssistContext, AssistId, AssistKind, + Assists, }; // Assist: remove_unused_param @@ -88,7 +89,7 @@ pub(crate) fn remove_unused_param(acc: &mut Assists, ctx: &AssistContext<'_>) -> fn process_usages( ctx: &AssistContext<'_>, - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, file_id: FileId, references: Vec<FileReference>, arg_to_remove: usize, diff --git a/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs b/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs index bd50208da5..d139f78a6f 100644 --- a/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs +++ b/crates/ide-assists/src/handlers/replace_derive_with_manual_impl.rs @@ -10,7 +10,7 @@ use syntax::{ }; use crate::{ - assist_context::{AssistBuilder, AssistContext, Assists}, + assist_context::{AssistContext, Assists, SourceChangeBuilder}, utils::{ add_trait_assoc_items_to_impl, filter_assoc_items, gen_trait_fn_body, generate_trait_impl_text, render_snippet, Cursor, DefaultMethods, @@ -224,7 +224,7 @@ fn impl_def_from_trait( } fn update_attribute( - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, old_derives: &[ast::Path], old_tree: &ast::TokenTree, old_trait_path: &ast::Path, diff --git a/crates/ide-assists/src/utils.rs b/crates/ide-assists/src/utils.rs index 3e61d0741d..103e3259fa 100644 --- a/crates/ide-assists/src/utils.rs +++ b/crates/ide-assists/src/utils.rs @@ -20,7 +20,7 @@ use syntax::{ SyntaxNode, TextRange, TextSize, T, }; -use crate::assist_context::{AssistBuilder, AssistContext}; +use crate::assist_context::{AssistContext, SourceChangeBuilder}; pub(crate) mod suggest_name; mod gen_trait_fn_body; @@ -484,7 +484,7 @@ fn generate_impl_text_inner(adt: &ast::Adt, trait_text: Option<&str>, code: &str } pub(crate) fn add_method_to_adt( - builder: &mut AssistBuilder, + builder: &mut SourceChangeBuilder, adt: &ast::Adt, impl_def: Option<ast::Impl>, method: &str, diff --git a/crates/ide-completion/src/completions.rs b/crates/ide-completion/src/completions.rs index 72579e6026..55c3e28392 100644 --- a/crates/ide-completion/src/completions.rs +++ b/crates/ide-completion/src/completions.rs @@ -617,7 +617,6 @@ pub(super) fn complete_name_ref( dot::complete_undotted_self(acc, ctx, path_ctx, expr_ctx); item_list::complete_item_list_in_expr(acc, ctx, path_ctx, expr_ctx); - record::complete_record_expr_func_update(acc, ctx, path_ctx, expr_ctx); snippet::complete_expr_snippet(acc, ctx, path_ctx, expr_ctx); } PathKind::Type { location } => { diff --git a/crates/ide-completion/src/completions/expr.rs b/crates/ide-completion/src/completions/expr.rs index 5d0ddaaf2a..4d66af9e8d 100644 --- a/crates/ide-completion/src/completions/expr.rs +++ b/crates/ide-completion/src/completions/expr.rs @@ -1,8 +1,10 @@ //! Completion of names from the current scope in expression position. use hir::ScopeDef; +use syntax::ast; use crate::{ + completions::record::add_default_update, context::{ExprCtx, PathCompletionCtx, Qualified}, CompletionContext, Completions, }; @@ -219,60 +221,78 @@ pub(crate) fn complete_expr_path( _ => (), }); - if is_func_update.is_none() { - let mut add_keyword = - |kw, snippet| acc.add_keyword_snippet_expr(ctx, incomplete_let, kw, snippet); + match is_func_update { + Some(record_expr) => { + let ty = ctx.sema.type_of_expr(&ast::Expr::RecordExpr(record_expr.clone())); - if !in_block_expr { - add_keyword("unsafe", "unsafe {\n $0\n}"); - } - add_keyword("match", "match $1 {\n $0\n}"); - add_keyword("while", "while $1 {\n $0\n}"); - add_keyword("while let", "while let $1 = $2 {\n $0\n}"); - add_keyword("loop", "loop {\n $0\n}"); - if in_match_guard { - add_keyword("if", "if $0"); - } else { - add_keyword("if", "if $1 {\n $0\n}"); + match ty.as_ref().and_then(|t| t.original.as_adt()) { + Some(hir::Adt::Union(_)) => (), + _ => { + cov_mark::hit!(functional_update); + let missing_fields = + ctx.sema.record_literal_missing_fields(record_expr); + if !missing_fields.is_empty() { + add_default_update(acc, ctx, ty); + } + } + }; } - add_keyword("if let", "if let $1 = $2 {\n $0\n}"); - add_keyword("for", "for $1 in $2 {\n $0\n}"); - add_keyword("true", "true"); - add_keyword("false", "false"); + None => { + let mut add_keyword = |kw, snippet| { + acc.add_keyword_snippet_expr(ctx, incomplete_let, kw, snippet) + }; - if in_condition || in_block_expr { - add_keyword("let", "let"); - } + if !in_block_expr { + add_keyword("unsafe", "unsafe {\n $0\n}"); + } + add_keyword("match", "match $1 {\n $0\n}"); + add_keyword("while", "while $1 {\n $0\n}"); + add_keyword("while let", "while let $1 = $2 {\n $0\n}"); + add_keyword("loop", "loop {\n $0\n}"); + if in_match_guard { + add_keyword("if", "if $0"); + } else { + add_keyword("if", "if $1 {\n $0\n}"); + } + add_keyword("if let", "if let $1 = $2 {\n $0\n}"); + add_keyword("for", "for $1 in $2 {\n $0\n}"); + add_keyword("true", "true"); + add_keyword("false", "false"); - if after_if_expr { - add_keyword("else", "else {\n $0\n}"); - add_keyword("else if", "else if $1 {\n $0\n}"); - } + if in_condition || in_block_expr { + add_keyword("let", "let"); + } - if wants_mut_token { - add_keyword("mut", "mut "); - } + if after_if_expr { + add_keyword("else", "else {\n $0\n}"); + add_keyword("else if", "else if $1 {\n $0\n}"); + } - if in_loop_body { - if in_block_expr { - add_keyword("continue", "continue;"); - add_keyword("break", "break;"); - } else { - add_keyword("continue", "continue"); - add_keyword("break", "break"); + if wants_mut_token { + add_keyword("mut", "mut "); + } + + if in_loop_body { + if in_block_expr { + add_keyword("continue", "continue;"); + add_keyword("break", "break;"); + } else { + add_keyword("continue", "continue"); + add_keyword("break", "break"); + } } - } - if let Some(ty) = innermost_ret_ty { - add_keyword( - "return", - match (in_block_expr, ty.is_unit()) { - (true, true) => "return ;", - (true, false) => "return;", - (false, true) => "return $0", - (false, false) => "return", - }, - ); + if let Some(ty) = innermost_ret_ty { + add_keyword( + "return", + match (in_block_expr, ty.is_unit()) { + (true, true) => "return ;", + (true, false) => "return;", + (false, true) => "return $0", + (false, false) => "return", + }, + ); + } } } } diff --git a/crates/ide-completion/src/completions/item_list/trait_impl.rs b/crates/ide-completion/src/completions/item_list/trait_impl.rs index e9256803cc..785db6fde1 100644 --- a/crates/ide-completion/src/completions/item_list/trait_impl.rs +++ b/crates/ide-completion/src/completions/item_list/trait_impl.rs @@ -233,7 +233,8 @@ fn add_type_alias_impl( type_alias: hir::TypeAlias, ) { let alias_name = type_alias.name(ctx.db); - let (alias_name, escaped_name) = (alias_name.to_smol_str(), alias_name.escaped().to_smol_str()); + let (alias_name, escaped_name) = + (alias_name.unescaped().to_smol_str(), alias_name.to_smol_str()); let label = format!("type {} =", alias_name); let replacement = format!("type {} = ", escaped_name); diff --git a/crates/ide-completion/src/completions/record.rs b/crates/ide-completion/src/completions/record.rs index 1c9042390d..bfb98b9f27 100644 --- a/crates/ide-completion/src/completions/record.rs +++ b/crates/ide-completion/src/completions/record.rs @@ -3,7 +3,7 @@ use ide_db::SymbolKind; use syntax::ast::{self, Expr}; use crate::{ - context::{DotAccess, DotAccessKind, ExprCtx, PathCompletionCtx, PatternContext, Qualified}, + context::{DotAccess, DotAccessKind, PatternContext}, CompletionContext, CompletionItem, CompletionItemKind, CompletionRelevance, CompletionRelevancePostfixMatch, Completions, }; @@ -14,7 +14,24 @@ pub(crate) fn complete_record_pattern_fields( pattern_ctx: &PatternContext, ) { if let PatternContext { record_pat: Some(record_pat), .. } = pattern_ctx { - complete_fields(acc, ctx, ctx.sema.record_pattern_missing_fields(record_pat)); + let ty = ctx.sema.type_of_pat(&ast::Pat::RecordPat(record_pat.clone())); + let missing_fields = match ty.as_ref().and_then(|t| t.original.as_adt()) { + Some(hir::Adt::Union(un)) => { + // ctx.sema.record_pat_missing_fields will always return + // an empty Vec on a union literal. This is normally + // reasonable, but here we'd like to present the full list + // of fields if the literal is empty. + let were_fields_specified = + record_pat.record_pat_field_list().and_then(|fl| fl.fields().next()).is_some(); + + match were_fields_specified { + false => un.fields(ctx.db).into_iter().map(|f| (f, f.ty(ctx.db))).collect(), + true => return, + } + } + _ => ctx.sema.record_pattern_missing_fields(record_pat), + }; + complete_fields(acc, ctx, missing_fields); } } @@ -42,8 +59,13 @@ pub(crate) fn complete_record_expr_fields( } _ => { let missing_fields = ctx.sema.record_literal_missing_fields(record_expr); - add_default_update(acc, ctx, ty, &missing_fields); + + if !missing_fields.is_empty() { + cov_mark::hit!(functional_update_field); + add_default_update(acc, ctx, ty); + } if dot_prefix { + cov_mark::hit!(functional_update_one_dot); let mut item = CompletionItem::new(CompletionItemKind::Snippet, ctx.source_range(), ".."); item.insert_text("."); @@ -56,41 +78,18 @@ pub(crate) fn complete_record_expr_fields( complete_fields(acc, ctx, missing_fields); } -// FIXME: This should probably be part of complete_path_expr -pub(crate) fn complete_record_expr_func_update( - acc: &mut Completions, - ctx: &CompletionContext<'_>, - path_ctx: &PathCompletionCtx, - expr_ctx: &ExprCtx, -) { - if !matches!(path_ctx.qualified, Qualified::No) { - return; - } - if let ExprCtx { is_func_update: Some(record_expr), .. } = expr_ctx { - let ty = ctx.sema.type_of_expr(&Expr::RecordExpr(record_expr.clone())); - - match ty.as_ref().and_then(|t| t.original.as_adt()) { - Some(hir::Adt::Union(_)) => (), - _ => { - let missing_fields = ctx.sema.record_literal_missing_fields(record_expr); - add_default_update(acc, ctx, ty, &missing_fields); - } - }; - } -} - -fn add_default_update( +pub(crate) fn add_default_update( acc: &mut Completions, ctx: &CompletionContext<'_>, ty: Option<hir::TypeInfo>, - missing_fields: &[(hir::Field, hir::Type)], ) { let default_trait = ctx.famous_defs().core_default_Default(); - let impl_default_trait = default_trait + let impls_default_trait = default_trait .zip(ty.as_ref()) .map_or(false, |(default_trait, ty)| ty.original.impls_trait(ctx.db, default_trait, &[])); - if impl_default_trait && !missing_fields.is_empty() { + if impls_default_trait { // FIXME: This should make use of scope_def like completions so we get all the other goodies + // that is we should handle this like actually completing the default function let completion_text = "..Default::default()"; let mut item = CompletionItem::new(SymbolKind::Field, ctx.source_range(), completion_text); let completion_text = diff --git a/crates/ide-completion/src/context.rs b/crates/ide-completion/src/context.rs index e35f79d2b6..759742d347 100644 --- a/crates/ide-completion/src/context.rs +++ b/crates/ide-completion/src/context.rs @@ -134,6 +134,7 @@ pub(crate) struct ExprCtx { pub(crate) in_condition: bool, pub(crate) incomplete_let: bool, pub(crate) ref_expr_parent: Option<ast::RefExpr>, + /// The surrounding RecordExpression we are completing a functional update pub(crate) is_func_update: Option<ast::RecordExpr>, pub(crate) self_param: Option<hir::SelfParam>, pub(crate) innermost_ret_ty: Option<hir::Type>, diff --git a/crates/ide-completion/src/render.rs b/crates/ide-completion/src/render.rs index 946134b0ff..693007ca30 100644 --- a/crates/ide-completion/src/render.rs +++ b/crates/ide-completion/src/render.rs @@ -117,7 +117,7 @@ pub(crate) fn render_field( ) -> CompletionItem { let is_deprecated = ctx.is_deprecated(field); let name = field.name(ctx.db()); - let (name, escaped_name) = (name.to_smol_str(), name.escaped().to_smol_str()); + let (name, escaped_name) = (name.unescaped().to_smol_str(), name.to_smol_str()); let mut item = CompletionItem::new( SymbolKind::Field, ctx.source_range(), @@ -283,8 +283,8 @@ fn render_resolution_path( let name = local_name.to_smol_str(); let mut item = render_resolution_simple_(ctx, &local_name, import_to_add, resolution); - if local_name.escaped().is_escaped() { - item.insert_text(local_name.escaped().to_smol_str()); + if local_name.is_escaped() { + item.insert_text(local_name.to_smol_str()); } // Add `<>` for generic types let type_path_no_ty_args = matches!( @@ -306,7 +306,7 @@ fn render_resolution_path( item.lookup_by(name.clone()) .label(SmolStr::from_iter([&name, "<…>"])) .trigger_call_info() - .insert_snippet(cap, format!("{}<$0>", local_name.escaped())); + .insert_snippet(cap, format!("{}<$0>", local_name)); } } } @@ -342,7 +342,8 @@ fn render_resolution_simple_( let ctx = ctx.import_to_add(import_to_add); let kind = res_to_kind(resolution); - let mut item = CompletionItem::new(kind, ctx.source_range(), local_name.to_smol_str()); + let mut item = + CompletionItem::new(kind, ctx.source_range(), local_name.unescaped().to_smol_str()); item.set_relevance(ctx.completion_relevance()) .set_documentation(scope_def_docs(db, resolution)) .set_deprecated(scope_def_is_deprecated(&ctx, resolution)); diff --git a/crates/ide-completion/src/render/const_.rs b/crates/ide-completion/src/render/const_.rs index a810eef18d..93ea825e00 100644 --- a/crates/ide-completion/src/render/const_.rs +++ b/crates/ide-completion/src/render/const_.rs @@ -13,7 +13,7 @@ pub(crate) fn render_const(ctx: RenderContext<'_>, const_: hir::Const) -> Option fn render(ctx: RenderContext<'_>, const_: hir::Const) -> Option<CompletionItem> { let db = ctx.db(); let name = const_.name(db)?; - let (name, escaped_name) = (name.to_smol_str(), name.escaped().to_smol_str()); + let (name, escaped_name) = (name.unescaped().to_smol_str(), name.to_smol_str()); let detail = const_.display(db).to_string(); let mut item = CompletionItem::new(SymbolKind::Const, ctx.source_range(), name.clone()); diff --git a/crates/ide-completion/src/render/function.rs b/crates/ide-completion/src/render/function.rs index 4b5535718c..9cf6469129 100644 --- a/crates/ide-completion/src/render/function.rs +++ b/crates/ide-completion/src/render/function.rs @@ -52,10 +52,10 @@ fn render( let (call, escaped_call) = match &func_kind { FuncKind::Method(_, Some(receiver)) => ( - format!("{}.{}", receiver, &name).into(), - format!("{}.{}", receiver.escaped(), name.escaped()).into(), + format!("{}.{}", receiver.unescaped(), name.unescaped()).into(), + format!("{}.{}", receiver, name).into(), ), - _ => (name.to_smol_str(), name.escaped().to_smol_str()), + _ => (name.unescaped().to_smol_str(), name.to_smol_str()), }; let mut item = CompletionItem::new( if func.self_param(db).is_some() { @@ -96,7 +96,7 @@ fn render( item.set_documentation(ctx.docs(func)) .set_deprecated(ctx.is_deprecated(func) || ctx.is_deprecated_assoc_item(func)) .detail(detail(db, func)) - .lookup_by(name.to_smol_str()); + .lookup_by(name.unescaped().to_smol_str()); match ctx.completion.config.snippet_cap { Some(cap) => { diff --git a/crates/ide-completion/src/render/literal.rs b/crates/ide-completion/src/render/literal.rs index 91a253f8fc..707dea206b 100644 --- a/crates/ide-completion/src/render/literal.rs +++ b/crates/ide-completion/src/render/literal.rs @@ -73,7 +73,7 @@ fn render( None => (name.clone().into(), name.into(), false), }; let (qualified_name, escaped_qualified_name) = - (qualified_name.to_string(), qualified_name.escaped().to_string()); + (qualified_name.unescaped().to_string(), qualified_name.to_string()); let snippet_cap = ctx.snippet_cap(); let mut rendered = match kind { diff --git a/crates/ide-completion/src/render/macro_.rs b/crates/ide-completion/src/render/macro_.rs index ca2269f139..eabd0bd17d 100644 --- a/crates/ide-completion/src/render/macro_.rs +++ b/crates/ide-completion/src/render/macro_.rs @@ -46,7 +46,7 @@ fn render( ctx.source_range() }; - let (name, escaped_name) = (name.to_smol_str(), name.escaped().to_smol_str()); + let (name, escaped_name) = (name.unescaped().to_smol_str(), name.to_smol_str()); let docs = ctx.docs(macro_); let docs_str = docs.as_ref().map(Documentation::as_str).unwrap_or_default(); let is_fn_like = macro_.is_fn_like(completion.db); diff --git a/crates/ide-completion/src/render/pattern.rs b/crates/ide-completion/src/render/pattern.rs index 34a384f2f7..1c1299e33b 100644 --- a/crates/ide-completion/src/render/pattern.rs +++ b/crates/ide-completion/src/render/pattern.rs @@ -31,7 +31,7 @@ pub(crate) fn render_struct_pat( } let name = local_name.unwrap_or_else(|| strukt.name(ctx.db())); - let (name, escaped_name) = (name.to_smol_str(), name.escaped().to_smol_str()); + let (name, escaped_name) = (name.unescaped().to_smol_str(), name.to_smol_str()); let kind = strukt.kind(ctx.db()); let label = format_literal_label(name.as_str(), kind); let pat = render_pat(&ctx, pattern_ctx, &escaped_name, kind, &visible_fields, fields_omitted)?; @@ -53,10 +53,10 @@ pub(crate) fn render_variant_pat( let (visible_fields, fields_omitted) = visible_fields(ctx.completion, &fields, variant)?; let (name, escaped_name) = match path { - Some(path) => (path.to_string().into(), path.escaped().to_string().into()), + Some(path) => (path.unescaped().to_string().into(), path.to_string().into()), None => { let name = local_name.unwrap_or_else(|| variant.name(ctx.db())); - (name.to_smol_str(), name.escaped().to_smol_str()) + (name.unescaped().to_smol_str(), name.to_smol_str()) } }; @@ -146,7 +146,7 @@ fn render_record_as_pat( format!( "{name} {{ {}{} }}", fields.enumerate().format_with(", ", |(idx, field), f| { - f(&format_args!("{}${}", field.name(db).escaped(), idx + 1)) + f(&format_args!("{}${}", field.name(db), idx + 1)) }), if fields_omitted { ", .." } else { "" }, name = name @@ -155,7 +155,7 @@ fn render_record_as_pat( None => { format!( "{name} {{ {}{} }}", - fields.map(|field| field.name(db).escaped().to_smol_str()).format(", "), + fields.map(|field| field.name(db).to_smol_str()).format(", "), if fields_omitted { ", .." } else { "" }, name = name ) diff --git a/crates/ide-completion/src/render/type_alias.rs b/crates/ide-completion/src/render/type_alias.rs index f1b23c76e7..de919429f2 100644 --- a/crates/ide-completion/src/render/type_alias.rs +++ b/crates/ide-completion/src/render/type_alias.rs @@ -32,11 +32,11 @@ fn render( let name = type_alias.name(db); let (name, escaped_name) = if with_eq { ( + SmolStr::from_iter([&name.unescaped().to_smol_str(), " = "]), SmolStr::from_iter([&name.to_smol_str(), " = "]), - SmolStr::from_iter([&name.escaped().to_smol_str(), " = "]), ) } else { - (name.to_smol_str(), name.escaped().to_smol_str()) + (name.unescaped().to_smol_str(), name.to_smol_str()) }; let detail = type_alias.display(db).to_string(); diff --git a/crates/ide-completion/src/render/union_literal.rs b/crates/ide-completion/src/render/union_literal.rs index 9c9540a9bd..bb32330f27 100644 --- a/crates/ide-completion/src/render/union_literal.rs +++ b/crates/ide-completion/src/render/union_literal.rs @@ -21,8 +21,8 @@ pub(crate) fn render_union_literal( let name = local_name.unwrap_or_else(|| un.name(ctx.db())); let (qualified_name, escaped_qualified_name) = match path { - Some(p) => (p.to_string(), p.escaped().to_string()), - None => (name.to_string(), name.escaped().to_string()), + Some(p) => (p.unescaped().to_string(), p.to_string()), + None => (name.unescaped().to_string(), name.to_string()), }; let mut item = CompletionItem::new( @@ -42,15 +42,15 @@ pub(crate) fn render_union_literal( format!( "{} {{ ${{1|{}|}}: ${{2:()}} }}$0", escaped_qualified_name, - fields.iter().map(|field| field.name(ctx.db()).escaped().to_smol_str()).format(",") + fields.iter().map(|field| field.name(ctx.db()).to_smol_str()).format(",") ) } else { format!( "{} {{ {} }}", escaped_qualified_name, - fields.iter().format_with(", ", |field, f| { - f(&format_args!("{}: ()", field.name(ctx.db()).escaped())) - }) + fields + .iter() + .format_with(", ", |field, f| { f(&format_args!("{}: ()", field.name(ctx.db()))) }) ) }; diff --git a/crates/ide-completion/src/render/variant.rs b/crates/ide-completion/src/render/variant.rs index 003a0c11ed..664845330e 100644 --- a/crates/ide-completion/src/render/variant.rs +++ b/crates/ide-completion/src/render/variant.rs @@ -24,9 +24,9 @@ pub(crate) fn render_record_lit( ) -> RenderedLiteral { let completions = fields.iter().enumerate().format_with(", ", |(idx, field), f| { if snippet_cap.is_some() { - f(&format_args!("{}: ${{{}:()}}", field.name(db).escaped(), idx + 1)) + f(&format_args!("{}: ${{{}:()}}", field.name(db), idx + 1)) } else { - f(&format_args!("{}: ()", field.name(db).escaped())) + f(&format_args!("{}: ()", field.name(db))) } }); diff --git a/crates/ide-completion/src/tests/record.rs b/crates/ide-completion/src/tests/record.rs index f6accc68e5..328faaa060 100644 --- a/crates/ide-completion/src/tests/record.rs +++ b/crates/ide-completion/src/tests/record.rs @@ -103,8 +103,9 @@ fn foo(f: Struct) { } #[test] -fn functional_update() { - // FIXME: This should filter out all completions that do not have the type `Foo` +fn in_functional_update() { + cov_mark::check!(functional_update); + check( r#" //- minicore:default @@ -116,13 +117,21 @@ impl Default for Foo { fn main() { let thing = 1; let foo = Foo { foo1: 0, foo2: 0 }; - let foo2 = Foo { thing, $0 } + let foo2 = Foo { thing, ..$0 } } "#, expect![[r#" fd ..Default::default() - fd foo1 u32 - fd foo2 u32 + fn main() fn() + lc foo Foo + lc thing i32 + md core + st Foo + st Foo {…} Foo { foo1: u32, foo2: u32 } + tt Default + bt u32 + kw crate:: + kw self:: "#]], ); check( @@ -136,14 +145,19 @@ impl Default for Foo { fn main() { let thing = 1; let foo = Foo { foo1: 0, foo2: 0 }; - let foo2 = Foo { thing, .$0 } + let foo2 = Foo { thing, ..Default::$0 } } "#, expect![[r#" - fd ..Default::default() - sn .. + fn default() (as Default) fn() -> Self "#]], ); +} + +#[test] +fn functional_update_no_dot() { + cov_mark::check!(functional_update_field); + // FIXME: This should filter out all completions that do not have the type `Foo` check( r#" //- minicore:default @@ -155,23 +169,20 @@ impl Default for Foo { fn main() { let thing = 1; let foo = Foo { foo1: 0, foo2: 0 }; - let foo2 = Foo { thing, ..$0 } + let foo2 = Foo { thing, $0 } } "#, expect![[r#" fd ..Default::default() - fn main() fn() - lc foo Foo - lc thing i32 - md core - st Foo - st Foo {…} Foo { foo1: u32, foo2: u32 } - tt Default - bt u32 - kw crate:: - kw self:: + fd foo1 u32 + fd foo2 u32 "#]], ); +} + +#[test] +fn functional_update_one_dot() { + cov_mark::check!(functional_update_one_dot); check( r#" //- minicore:default @@ -183,11 +194,12 @@ impl Default for Foo { fn main() { let thing = 1; let foo = Foo { foo1: 0, foo2: 0 }; - let foo2 = Foo { thing, ..Default::$0 } + let foo2 = Foo { thing, .$0 } } "#, expect![[r#" - fn default() (as Default) fn() -> Self + fd ..Default::default() + sn .. "#]], ); } diff --git a/crates/ide-db/src/search.rs b/crates/ide-db/src/search.rs index bd038cdaa0..9eaabeec7a 100644 --- a/crates/ide-db/src/search.rs +++ b/crates/ide-db/src/search.rs @@ -4,7 +4,7 @@ //! get a super-set of matches. Then, we we confirm each match using precise //! name resolution. -use std::{convert::TryInto, mem, sync::Arc}; +use std::{mem, sync::Arc}; use base_db::{FileId, FileRange, SourceDatabase, SourceDatabaseExt}; use hir::{DefWithBody, HasAttrs, HasSource, InFile, ModuleSource, Semantics, Visibility}; diff --git a/crates/ide-db/src/source_change.rs b/crates/ide-db/src/source_change.rs index 8132c73ef2..21314ad74e 100644 --- a/crates/ide-db/src/source_change.rs +++ b/crates/ide-db/src/source_change.rs @@ -3,12 +3,15 @@ //! //! It can be viewed as a dual for `Change`. -use std::{collections::hash_map::Entry, iter}; +use std::{collections::hash_map::Entry, iter, mem}; use base_db::{AnchoredPathBuf, FileId}; use rustc_hash::FxHashMap; use stdx::never; -use text_edit::TextEdit; +use syntax::{algo, AstNode, SyntaxNode, SyntaxNodePtr, TextRange, TextSize}; +use text_edit::{TextEdit, TextEditBuilder}; + +use crate::SnippetCap; #[derive(Default, Debug, Clone)] pub struct SourceChange { @@ -81,6 +84,135 @@ impl From<FxHashMap<FileId, TextEdit>> for SourceChange { } } +pub struct SourceChangeBuilder { + pub edit: TextEditBuilder, + pub file_id: FileId, + pub source_change: SourceChange, + pub trigger_signature_help: bool, + + /// Maps the original, immutable `SyntaxNode` to a `clone_for_update` twin. + pub mutated_tree: Option<TreeMutator>, +} + +pub struct TreeMutator { + immutable: SyntaxNode, + mutable_clone: SyntaxNode, +} + +impl TreeMutator { + pub fn new(immutable: &SyntaxNode) -> TreeMutator { + let immutable = immutable.ancestors().last().unwrap(); + let mutable_clone = immutable.clone_for_update(); + TreeMutator { immutable, mutable_clone } + } + + pub fn make_mut<N: AstNode>(&self, node: &N) -> N { + N::cast(self.make_syntax_mut(node.syntax())).unwrap() + } + + pub fn make_syntax_mut(&self, node: &SyntaxNode) -> SyntaxNode { + let ptr = SyntaxNodePtr::new(node); + ptr.to_node(&self.mutable_clone) + } +} + +impl SourceChangeBuilder { + pub fn new(file_id: FileId) -> SourceChangeBuilder { + SourceChangeBuilder { + edit: TextEdit::builder(), + file_id, + source_change: SourceChange::default(), + trigger_signature_help: false, + mutated_tree: None, + } + } + + pub fn edit_file(&mut self, file_id: FileId) { + self.commit(); + self.file_id = file_id; + } + + fn commit(&mut self) { + if let Some(tm) = self.mutated_tree.take() { + algo::diff(&tm.immutable, &tm.mutable_clone).into_text_edit(&mut self.edit) + } + + let edit = mem::take(&mut self.edit).finish(); + if !edit.is_empty() { + self.source_change.insert_source_edit(self.file_id, edit); + } + } + + pub fn make_mut<N: AstNode>(&mut self, node: N) -> N { + self.mutated_tree.get_or_insert_with(|| TreeMutator::new(node.syntax())).make_mut(&node) + } + /// Returns a copy of the `node`, suitable for mutation. + /// + /// Syntax trees in rust-analyzer are typically immutable, and mutating + /// operations panic at runtime. However, it is possible to make a copy of + /// the tree and mutate the copy freely. Mutation is based on interior + /// mutability, and different nodes in the same tree see the same mutations. + /// + /// The typical pattern for an assist is to find specific nodes in the read + /// phase, and then get their mutable couterparts using `make_mut` in the + /// mutable state. + pub fn make_syntax_mut(&mut self, node: SyntaxNode) -> SyntaxNode { + self.mutated_tree.get_or_insert_with(|| TreeMutator::new(&node)).make_syntax_mut(&node) + } + + /// Remove specified `range` of text. + pub fn delete(&mut self, range: TextRange) { + self.edit.delete(range) + } + /// Append specified `text` at the given `offset` + pub fn insert(&mut self, offset: TextSize, text: impl Into<String>) { + self.edit.insert(offset, text.into()) + } + /// Append specified `snippet` at the given `offset` + pub fn insert_snippet( + &mut self, + _cap: SnippetCap, + offset: TextSize, + snippet: impl Into<String>, + ) { + self.source_change.is_snippet = true; + self.insert(offset, snippet); + } + /// Replaces specified `range` of text with a given string. + pub fn replace(&mut self, range: TextRange, replace_with: impl Into<String>) { + self.edit.replace(range, replace_with.into()) + } + /// Replaces specified `range` of text with a given `snippet`. + pub fn replace_snippet( + &mut self, + _cap: SnippetCap, + range: TextRange, + snippet: impl Into<String>, + ) { + self.source_change.is_snippet = true; + self.replace(range, snippet); + } + pub fn replace_ast<N: AstNode>(&mut self, old: N, new: N) { + algo::diff(old.syntax(), new.syntax()).into_text_edit(&mut self.edit) + } + pub fn create_file(&mut self, dst: AnchoredPathBuf, content: impl Into<String>) { + let file_system_edit = FileSystemEdit::CreateFile { dst, initial_contents: content.into() }; + self.source_change.push_file_system_edit(file_system_edit); + } + pub fn move_file(&mut self, src: FileId, dst: AnchoredPathBuf) { + let file_system_edit = FileSystemEdit::MoveFile { src, dst }; + self.source_change.push_file_system_edit(file_system_edit); + } + pub fn trigger_signature_help(&mut self) { + self.trigger_signature_help = true; + } + + pub fn finish(mut self) -> SourceChange { + self.commit(); + mem::take(&mut self.source_change) + } +} + #[derive(Debug, Clone)] pub enum FileSystemEdit { CreateFile { dst: AnchoredPathBuf, initial_contents: String }, diff --git a/crates/ide-diagnostics/Cargo.toml b/crates/ide-diagnostics/Cargo.toml index e221425edd..9b9e21a4dd 100644 --- a/crates/ide-diagnostics/Cargo.toml +++ b/crates/ide-diagnostics/Cargo.toml @@ -15,6 +15,7 @@ itertools = "0.10.3" either = "1.7.0" +serde_json = "1.0.82" profile = { path = "../profile", version = "0.0.0" } stdx = { path = "../stdx", version = "0.0.0" } diff --git a/crates/ide-diagnostics/src/handlers/inactive_code.rs b/crates/ide-diagnostics/src/handlers/inactive_code.rs index 97ea5c456a..5694f33525 100644 --- a/crates/ide-diagnostics/src/handlers/inactive_code.rs +++ b/crates/ide-diagnostics/src/handlers/inactive_code.rs @@ -43,7 +43,7 @@ mod tests { use crate::{tests::check_diagnostics_with_config, DiagnosticsConfig}; pub(crate) fn check(ra_fixture: &str) { - let config = DiagnosticsConfig::default(); + let config = DiagnosticsConfig::test_sample(); check_diagnostics_with_config(config, ra_fixture) } diff --git a/crates/ide-diagnostics/src/handlers/json_is_not_rust.rs b/crates/ide-diagnostics/src/handlers/json_is_not_rust.rs new file mode 100644 index 0000000000..a21db5b2ce --- /dev/null +++ b/crates/ide-diagnostics/src/handlers/json_is_not_rust.rs @@ -0,0 +1,310 @@ +//! This diagnostic provides an assist for creating a struct definition from a JSON +//! example. + +use hir::{PathResolution, Semantics}; +use ide_db::{ + base_db::FileId, + helpers::mod_path_to_ast, + imports::insert_use::{insert_use, ImportScope}, + source_change::SourceChangeBuilder, + RootDatabase, +}; +use itertools::Itertools; +use stdx::{format_to, never}; +use syntax::{ + ast::{self, make}, + SyntaxKind, SyntaxNode, +}; +use text_edit::TextEdit; + +use crate::{fix, Diagnostic, DiagnosticsConfig, Severity}; + +#[derive(Default)] +struct State { + result: String, + struct_counts: usize, + has_serialize: bool, + has_deserialize: bool, +} + +impl State { + fn generate_new_name(&mut self) -> ast::Name { + self.struct_counts += 1; + make::name(&format!("Struct{}", self.struct_counts)) + } + + fn serde_derive(&self) -> String { + let mut v = vec![]; + if self.has_serialize { + v.push("Serialize"); + } + if self.has_deserialize { + v.push("Deserialize"); + } + match v.as_slice() { + [] => "".to_string(), + [x] => format!("#[derive({x})]\n"), + [x, y] => format!("#[derive({x}, {y})]\n"), + _ => { + never!(); + "".to_string() + } + } + } + + fn build_struct(&mut self, value: &serde_json::Map<String, serde_json::Value>) -> ast::Type { + let name = self.generate_new_name(); + let ty = make::ty(&name.to_string()); + let strukt = make::struct_( + None, + name, + None, + make::record_field_list(value.iter().sorted_unstable_by_key(|x| x.0).map( + |(name, value)| make::record_field(None, make::name(name), self.type_of(value)), + )) + .into(), + ); + format_to!(self.result, "{}{}\n", self.serde_derive(), strukt); + ty + } + + fn type_of(&mut self, value: &serde_json::Value) -> ast::Type { + match value { + serde_json::Value::Null => make::ty_unit(), + serde_json::Value::Bool(_) => make::ty("bool"), + serde_json::Value::Number(it) => make::ty(if it.is_i64() { "i64" } else { "f64" }), + serde_json::Value::String(_) => make::ty("String"), + serde_json::Value::Array(it) => { + let ty = match it.iter().next() { + Some(x) => self.type_of(x), + None => make::ty_placeholder(), + }; + make::ty(&format!("Vec<{ty}>")) + } + serde_json::Value::Object(x) => self.build_struct(x), + } + } +} + +pub(crate) fn json_in_items( + sema: &Semantics<'_, RootDatabase>, + acc: &mut Vec<Diagnostic>, + file_id: FileId, + node: &SyntaxNode, + config: &DiagnosticsConfig, +) { + (|| { + if node.kind() == SyntaxKind::ERROR + && node.first_token().map(|x| x.kind()) == Some(SyntaxKind::L_CURLY) + && node.last_token().map(|x| x.kind()) == Some(SyntaxKind::R_CURLY) + { + let node_string = node.to_string(); + if let Ok(it) = serde_json::from_str(&node_string) { + if let serde_json::Value::Object(it) = it { + let import_scope = ImportScope::find_insert_use_container(node, sema)?; + let range = node.text_range(); + let mut edit = TextEdit::builder(); + edit.delete(range); + let mut state = State::default(); + let semantics_scope = sema.scope(node)?; + let scope_resolve = + |it| semantics_scope.speculative_resolve(&make::path_from_text(it)); + let scope_has = |it| scope_resolve(it).is_some(); + let deserialize_resolved = scope_resolve("::serde::Deserialize"); + let serialize_resolved = scope_resolve("::serde::Serialize"); + state.has_deserialize = deserialize_resolved.is_some(); + state.has_serialize = serialize_resolved.is_some(); + state.build_struct(&it); + edit.insert(range.start(), state.result); + acc.push( + Diagnostic::new( + "json-is-not-rust", + "JSON syntax is not valid as a Rust item", + range, + ) + .severity(Severity::WeakWarning) + .with_fixes(Some(vec![{ + let mut scb = SourceChangeBuilder::new(file_id); + let scope = match import_scope.clone() { + ImportScope::File(it) => ImportScope::File(scb.make_mut(it)), + ImportScope::Module(it) => ImportScope::Module(scb.make_mut(it)), + ImportScope::Block(it) => ImportScope::Block(scb.make_mut(it)), + }; + let current_module = semantics_scope.module(); + if !scope_has("Serialize") { + if let Some(PathResolution::Def(it)) = serialize_resolved { + if let Some(it) = current_module.find_use_path_prefixed( + sema.db, + it, + config.insert_use.prefix_kind, + ) { + insert_use( + &scope, + mod_path_to_ast(&it), + &config.insert_use, + ); + } + } + } + if !scope_has("Deserialize") { + if let Some(PathResolution::Def(it)) = deserialize_resolved { + if let Some(it) = current_module.find_use_path_prefixed( + sema.db, + it, + config.insert_use.prefix_kind, + ) { + insert_use( + &scope, + mod_path_to_ast(&it), + &config.insert_use, + ); + } + } + } + let mut sc = scb.finish(); + sc.insert_source_edit(file_id, edit.finish()); + fix("convert_json_to_struct", "Convert JSON to struct", sc, range) + }])), + ); + } + } + } + Some(()) + })(); +} + +#[cfg(test)] +mod tests { + use crate::{ + tests::{check_diagnostics_with_config, check_fix, check_no_fix}, + DiagnosticsConfig, + }; + + #[test] + fn diagnostic_for_simple_case() { + let mut config = DiagnosticsConfig::test_sample(); + config.disabled.insert("syntax-error".to_string()); + check_diagnostics_with_config( + config, + r#" + { "foo": "bar" } + // ^^^^^^^^^^^^^^^^ 💡 weak: JSON syntax is not valid as a Rust item +"#, + ); + } + + #[test] + fn types_of_primitives() { + check_fix( + r#" + //- /lib.rs crate:lib deps:serde + use serde::Serialize; + + fn some_garbage() { + + } + + {$0 + "foo": "bar", + "bar": 2.3, + "baz": null, + "bay": 57, + "box": true + } + //- /serde.rs crate:serde + + pub trait Serialize { + fn serialize() -> u8; + } + "#, + r#" + use serde::Serialize; + + fn some_garbage() { + + } + + #[derive(Serialize)] + struct Struct1{ bar: f64, bay: i64, baz: (), r#box: bool, foo: String } + + "#, + ); + } + + #[test] + fn nested_structs() { + check_fix( + r#" + {$0 + "foo": "bar", + "bar": { + "kind": "Object", + "value": {} + } + } + "#, + r#" + struct Struct3{ } + struct Struct2{ kind: String, value: Struct3 } + struct Struct1{ bar: Struct2, foo: String } + + "#, + ); + } + + #[test] + fn arrays() { + check_fix( + r#" + //- /lib.rs crate:lib deps:serde + { + "of_string": ["foo", "2", "x"], $0 + "of_object": [{ + "x": 10, + "y": 20 + }, { + "x": 10, + "y": 20 + }], + "nested": [[[2]]], + "empty": [] + } + //- /serde.rs crate:serde + + pub trait Serialize { + fn serialize() -> u8; + } + pub trait Deserialize { + fn deserialize() -> u8; + } + "#, + r#" + use serde::Serialize; + use serde::Deserialize; + + #[derive(Serialize, Deserialize)] + struct Struct2{ x: i64, y: i64 } + #[derive(Serialize, Deserialize)] + struct Struct1{ empty: Vec<_>, nested: Vec<Vec<Vec<i64>>>, of_object: Vec<Struct2>, of_string: Vec<String> } + + "#, + ); + } + + #[test] + fn no_emit_outside_of_item_position() { + check_no_fix( + r#" + fn foo() { + let json = {$0 + "foo": "bar", + "bar": { + "kind": "Object", + "value": {} + } + }; + } + "#, + ); + } +} diff --git a/crates/ide-diagnostics/src/handlers/macro_error.rs b/crates/ide-diagnostics/src/handlers/macro_error.rs index d6a66dc150..43ff4ed5a6 100644 --- a/crates/ide-diagnostics/src/handlers/macro_error.rs +++ b/crates/ide-diagnostics/src/handlers/macro_error.rs @@ -79,7 +79,7 @@ pub macro panic { #[test] fn include_macro_should_allow_empty_content() { - let mut config = DiagnosticsConfig::default(); + let mut config = DiagnosticsConfig::test_sample(); // FIXME: This is a false-positive, the file is actually linked in via // `include!` macro diff --git a/crates/ide-diagnostics/src/handlers/no_such_field.rs b/crates/ide-diagnostics/src/handlers/no_such_field.rs index e032c578f0..a80299106b 100644 --- a/crates/ide-diagnostics/src/handlers/no_such_field.rs +++ b/crates/ide-diagnostics/src/handlers/no_such_field.rs @@ -68,7 +68,7 @@ fn missing_record_expr_field_fixes( } let new_field = make::record_field( None, - make::name(&record_expr_field.field_name()?.text()), + make::name(&record_expr_field.field_name()?.ident_token()?.text()), make::ty(&new_field_type.display_source_code(sema.db, module.into()).ok()?), ); @@ -109,7 +109,7 @@ fn missing_record_expr_field_fixes( #[cfg(test)] mod tests { - use crate::tests::{check_diagnostics, check_fix}; + use crate::tests::{check_diagnostics, check_fix, check_no_fix}; #[test] fn no_such_field_diagnostics() { @@ -280,4 +280,18 @@ struct Foo { "#, ) } + + #[test] + fn test_tuple_field_on_record_struct() { + check_no_fix( + r#" +struct Struct {} +fn main() { + Struct { + 0$0: 0 + } +} +"#, + ) + } } diff --git a/crates/ide-diagnostics/src/lib.rs b/crates/ide-diagnostics/src/lib.rs index 41abaa836f..61e63ea7a9 100644 --- a/crates/ide-diagnostics/src/lib.rs +++ b/crates/ide-diagnostics/src/lib.rs @@ -50,6 +50,7 @@ mod handlers { pub(crate) mod field_shorthand; pub(crate) mod useless_braces; pub(crate) mod unlinked_file; + pub(crate) mod json_is_not_rust; } #[cfg(test)] @@ -59,6 +60,7 @@ use hir::{diagnostics::AnyDiagnostic, InFile, Semantics}; use ide_db::{ assists::{Assist, AssistId, AssistKind, AssistResolveStrategy}, base_db::{FileId, FileRange, SourceDatabase}, + imports::insert_use::InsertUseConfig, label::Label, source_change::SourceChange, FxHashSet, RootDatabase, @@ -139,13 +141,37 @@ impl Default for ExprFillDefaultMode { } } -#[derive(Default, Debug, Clone)] +#[derive(Debug, Clone)] pub struct DiagnosticsConfig { pub proc_macros_enabled: bool, pub proc_attr_macros_enabled: bool, pub disable_experimental: bool, pub disabled: FxHashSet<String>, pub expr_fill_default: ExprFillDefaultMode, + // FIXME: We may want to include a whole `AssistConfig` here + pub insert_use: InsertUseConfig, +} + +impl DiagnosticsConfig { + pub fn test_sample() -> Self { + use hir::PrefixKind; + use ide_db::imports::insert_use::ImportGranularity; + + Self { + proc_macros_enabled: Default::default(), + proc_attr_macros_enabled: Default::default(), + disable_experimental: Default::default(), + disabled: Default::default(), + expr_fill_default: Default::default(), + insert_use: InsertUseConfig { + granularity: ImportGranularity::Preserve, + enforce_granularity: false, + prefix_kind: PrefixKind::Plain, + group: false, + skip_glob_imports: false, + }, + } + } } struct DiagnosticsContext<'a> { @@ -172,9 +198,12 @@ pub fn diagnostics( }), ); - for node in parse.tree().syntax().descendants() { + let parse = sema.parse(file_id); + + for node in parse.syntax().descendants() { handlers::useless_braces::useless_braces(&mut res, file_id, &node); handlers::field_shorthand::field_shorthand(&mut res, file_id, &node); + handlers::json_is_not_rust::json_in_items(&sema, &mut res, file_id, &node, &config); } let module = sema.to_module_def(file_id); diff --git a/crates/ide-diagnostics/src/tests.rs b/crates/ide-diagnostics/src/tests.rs index 7312bca32f..729619cfde 100644 --- a/crates/ide-diagnostics/src/tests.rs +++ b/crates/ide-diagnostics/src/tests.rs @@ -37,7 +37,7 @@ fn check_nth_fix(nth: usize, ra_fixture_before: &str, ra_fixture_after: &str) { let after = trim_indent(ra_fixture_after); let (db, file_position) = RootDatabase::with_position(ra_fixture_before); - let mut conf = DiagnosticsConfig::default(); + let mut conf = DiagnosticsConfig::test_sample(); conf.expr_fill_default = ExprFillDefaultMode::Default; let diagnostic = super::diagnostics(&db, &conf, &AssistResolveStrategy::All, file_position.file_id) @@ -69,7 +69,7 @@ pub(crate) fn check_no_fix(ra_fixture: &str) { let (db, file_position) = RootDatabase::with_position(ra_fixture); let diagnostic = super::diagnostics( &db, - &DiagnosticsConfig::default(), + &DiagnosticsConfig::test_sample(), &AssistResolveStrategy::All, file_position.file_id, ) @@ -82,7 +82,7 @@ pub(crate) fn check_expect(ra_fixture: &str, expect: Expect) { let (db, file_id) = RootDatabase::with_single_file(ra_fixture); let diagnostics = super::diagnostics( &db, - &DiagnosticsConfig::default(), + &DiagnosticsConfig::test_sample(), &AssistResolveStrategy::All, file_id, ); @@ -91,7 +91,7 @@ pub(crate) fn check_expect(ra_fixture: &str, expect: Expect) { #[track_caller] pub(crate) fn check_diagnostics(ra_fixture: &str) { - let mut config = DiagnosticsConfig::default(); + let mut config = DiagnosticsConfig::test_sample(); config.disabled.insert("inactive-code".to_string()); check_diagnostics_with_config(config, ra_fixture) } @@ -127,7 +127,7 @@ pub(crate) fn check_diagnostics_with_config(config: DiagnosticsConfig, ra_fixtur #[test] fn test_disabled_diagnostics() { - let mut config = DiagnosticsConfig::default(); + let mut config = DiagnosticsConfig::test_sample(); config.disabled.insert("unresolved-module".into()); let (db, file_id) = RootDatabase::with_single_file(r#"mod foo;"#); @@ -137,7 +137,7 @@ fn test_disabled_diagnostics() { let diagnostics = super::diagnostics( &db, - &DiagnosticsConfig::default(), + &DiagnosticsConfig::test_sample(), &AssistResolveStrategy::All, file_id, ); diff --git a/crates/ide/src/goto_definition.rs b/crates/ide/src/goto_definition.rs index b2123b9a87..d6cd5783f0 100644 --- a/crates/ide/src/goto_definition.rs +++ b/crates/ide/src/goto_definition.rs @@ -1,4 +1,4 @@ -use std::{convert::TryInto, mem::discriminant}; +use std::mem::discriminant; use crate::{doc_links::token_as_doc_comment, FilePosition, NavigationTarget, RangeInfo, TryToNav}; use hir::{AsAssocItem, AssocItem, Semantics}; diff --git a/crates/ide/src/runnables.rs b/crates/ide/src/runnables.rs index b0853b10fd..0181c6b8e4 100644 --- a/crates/ide/src/runnables.rs +++ b/crates/ide/src/runnables.rs @@ -2225,4 +2225,190 @@ macro_rules! foo { "#]], ); } + + #[test] + fn test_paths_with_raw_ident() { + check( + r#" +//- /lib.rs +$0 +mod r#mod { + #[test] + fn r#fn() {} + + /// ``` + /// ``` + fn r#for() {} + + /// ``` + /// ``` + struct r#struct<r#type>(r#type); + + /// ``` + /// ``` + impl<r#type> r#struct<r#type> { + /// ``` + /// ``` + fn r#fn() {} + } + + enum r#enum {} + impl r#struct<r#enum> { + /// ``` + /// ``` + fn r#fn() {} + } + + trait r#trait {} + + /// ``` + /// ``` + impl<T> r#trait for r#struct<T> {} +} +"#, + &[TestMod, Test, DocTest, DocTest, DocTest, DocTest, DocTest, DocTest], + expect![[r#" + [ + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 1..461, + focus_range: 5..10, + name: "r#mod", + kind: Module, + description: "mod r#mod", + }, + kind: TestMod { + path: "r#mod", + }, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 17..41, + focus_range: 32..36, + name: "r#fn", + kind: Function, + }, + kind: Test { + test_id: Path( + "r#mod::r#fn", + ), + attr: TestAttr { + ignore: false, + }, + }, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 47..84, + name: "r#for", + }, + kind: DocTest { + test_id: Path( + "r#mod::r#for", + ), + }, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 90..146, + name: "r#struct", + }, + kind: DocTest { + test_id: Path( + "r#mod::r#struct", + ), + }, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 152..266, + focus_range: 189..205, + name: "impl", + kind: Impl, + }, + kind: DocTest { + test_id: Path( + "r#struct<r#type>", + ), + }, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 216..260, + name: "r#fn", + }, + kind: DocTest { + test_id: Path( + "r#mod::r#struct<r#type>::r#fn", + ), + }, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 323..367, + name: "r#fn", + }, + kind: DocTest { + test_id: Path( + "r#mod::r#struct<r#enum>::r#fn", + ), + }, + cfg: None, + }, + Runnable { + use_name_in_title: false, + nav: NavigationTarget { + file_id: FileId( + 0, + ), + full_range: 401..459, + focus_range: 445..456, + name: "impl", + kind: Impl, + }, + kind: DocTest { + test_id: Path( + "r#struct<T>", + ), + }, + cfg: None, + }, + ] + "#]], + ) + } } diff --git a/crates/ide/src/status.rs b/crates/ide/src/status.rs index 32e39f82a0..f4d0387440 100644 --- a/crates/ide/src/status.rs +++ b/crates/ide/src/status.rs @@ -1,4 +1,4 @@ -use std::{fmt, iter::FromIterator, sync::Arc}; +use std::{fmt, sync::Arc}; use hir::{ExpandResult, MacroFile}; use ide_db::base_db::{ diff --git a/crates/mbe/src/syntax_bridge.rs b/crates/mbe/src/syntax_bridge.rs index aca6ecd424..e4c56565b9 100644 --- a/crates/mbe/src/syntax_bridge.rs +++ b/crates/mbe/src/syntax_bridge.rs @@ -228,16 +228,7 @@ fn convert_tokens<C: TokenConvertor>(conv: &mut C) -> tt::Subtree { } let spacing = match conv.peek().map(|next| next.kind(conv)) { - Some(kind) - if !kind.is_trivia() - && kind.is_punct() - && kind != T!['['] - && kind != T!['{'] - && kind != T!['('] - && kind != UNDERSCORE => - { - tt::Spacing::Joint - } + Some(kind) if !kind.is_trivia() => tt::Spacing::Joint, _ => tt::Spacing::Alone, }; let char = match token.to_char(conv) { diff --git a/crates/parser/src/grammar/expressions.rs b/crates/parser/src/grammar/expressions.rs index e7402104eb..dcaceade65 100644 --- a/crates/parser/src/grammar/expressions.rs +++ b/crates/parser/src/grammar/expressions.rs @@ -564,8 +564,10 @@ fn path_expr(p: &mut Parser<'_>, r: Restrictions) -> (CompletedMarker, BlockLike // test record_lit // fn foo() { // S {}; +// S { x }; // S { x, y: 32, }; // S { x, y: 32, ..Default::default() }; +// S { x: ::default() }; // TupleStruct { 0: 1 }; // } pub(crate) fn record_expr_field_list(p: &mut Parser<'_>) { @@ -582,16 +584,26 @@ pub(crate) fn record_expr_field_list(p: &mut Parser<'_>) { match p.current() { IDENT | INT_NUMBER => { - // test_err record_literal_before_ellipsis_recovery + // test_err record_literal_missing_ellipsis_recovery // fn main() { - // S { field ..S::default() } + // S { S::default() } // } - if p.nth_at(1, T![:]) || p.nth_at(1, T![..]) { - name_ref_or_index(p); - p.expect(T![:]); + if p.nth_at(1, T![::]) { + m.abandon(p); + p.expect(T![..]); + expr(p); + } else { + // test_err record_literal_before_ellipsis_recovery + // fn main() { + // S { field ..S::default() } + // } + if p.nth_at(1, T![:]) || p.nth_at(1, T![..]) { + name_ref_or_index(p); + p.expect(T![:]); + } + expr(p); + m.complete(p, RECORD_EXPR_FIELD); } - expr(p); - m.complete(p, RECORD_EXPR_FIELD); } T![.] if p.at(T![..]) => { m.abandon(p); diff --git a/crates/parser/src/grammar/patterns.rs b/crates/parser/src/grammar/patterns.rs index 4cbf103061..7e21a808da 100644 --- a/crates/parser/src/grammar/patterns.rs +++ b/crates/parser/src/grammar/patterns.rs @@ -75,6 +75,16 @@ fn pattern_single_r(p: &mut Parser<'_>, recovery_set: TokenSet) { // Some(1..) => () // } // + // match () { + // S { a: 0 } => (), + // S { a: 1.. } => (), + // } + // + // match () { + // [0] => (), + // [1..] => (), + // } + // // match (10 as u8, 5 as u8) { // (0, _) => (), // (1.., _) => () @@ -88,11 +98,27 @@ fn pattern_single_r(p: &mut Parser<'_>, recovery_set: TokenSet) { let m = lhs.precede(p); p.bump(range_op); - // `0 .. =>` or `let 0 .. =` or `Some(0 .. )` - // ^ ^ ^ - if p.at(T![=]) | p.at(T![')']) | p.at(T![,]) { + // testing if we're at one of the following positions: + // `0 .. =>` + // ^ + // `let 0 .. =` + // ^ + // `let 0..: _ =` + // ^ + // (1.., _) + // ^ + // `Some(0 .. )` + // ^ + // `S { t: 0.. }` + // ^ + // `[0..]` + // ^ + if matches!(p.current(), T![=] | T![,] | T![:] | T![')'] | T!['}'] | T![']']) { // test half_open_range_pat - // fn f() { let 0 .. = 1u32; } + // fn f() { + // let 0 .. = 1u32; + // let 0..: _ = 1u32; + // } } else { atom_pat(p, recovery_set); } diff --git a/crates/parser/test_data/parser/inline/err/0014_record_literal_missing_ellipsis_recovery.rast b/crates/parser/test_data/parser/inline/err/0014_record_literal_missing_ellipsis_recovery.rast new file mode 100644 index 0000000000..0c5b618e6f --- /dev/null +++ b/crates/parser/test_data/parser/inline/err/0014_record_literal_missing_ellipsis_recovery.rast @@ -0,0 +1,43 @@ +SOURCE_FILE + FN + FN_KW "fn" + WHITESPACE " " + NAME + IDENT "main" + PARAM_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + BLOCK_EXPR + STMT_LIST + L_CURLY "{" + WHITESPACE "\n " + RECORD_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_EXPR_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + CALL_EXPR + PATH_EXPR + PATH + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + COLON2 "::" + PATH_SEGMENT + NAME_REF + IDENT "default" + ARG_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + R_CURLY "}" + WHITESPACE "\n" + R_CURLY "}" + WHITESPACE "\n" +error 19: expected DOT2 diff --git a/crates/parser/test_data/parser/inline/err/0014_record_literal_missing_ellipsis_recovery.rs b/crates/parser/test_data/parser/inline/err/0014_record_literal_missing_ellipsis_recovery.rs new file mode 100644 index 0000000000..1b594e8ab9 --- /dev/null +++ b/crates/parser/test_data/parser/inline/err/0014_record_literal_missing_ellipsis_recovery.rs @@ -0,0 +1,3 @@ +fn main() { + S { S::default() } +} diff --git a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast index 44c967e8dc..cfef5d3f95 100644 --- a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast +++ b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rast @@ -172,6 +172,122 @@ SOURCE_FILE WHITESPACE "\n " R_CURLY "}" WHITESPACE "\n\n " + EXPR_STMT + MATCH_EXPR + MATCH_KW "match" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + MATCH_ARM_LIST + L_CURLY "{" + WHITESPACE "\n " + MATCH_ARM + RECORD_PAT + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_PAT_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + RECORD_PAT_FIELD + NAME_REF + IDENT "a" + COLON ":" + WHITESPACE " " + LITERAL_PAT + LITERAL + INT_NUMBER "0" + WHITESPACE " " + R_CURLY "}" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + MATCH_ARM + RECORD_PAT + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_PAT_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + RECORD_PAT_FIELD + NAME_REF + IDENT "a" + COLON ":" + WHITESPACE " " + RANGE_PAT + LITERAL_PAT + LITERAL + INT_NUMBER "1" + DOT2 ".." + WHITESPACE " " + R_CURLY "}" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + R_CURLY "}" + WHITESPACE "\n\n " + EXPR_STMT + MATCH_EXPR + MATCH_KW "match" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + MATCH_ARM_LIST + L_CURLY "{" + WHITESPACE "\n " + MATCH_ARM + SLICE_PAT + L_BRACK "[" + LITERAL_PAT + LITERAL + INT_NUMBER "0" + R_BRACK "]" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + MATCH_ARM + SLICE_PAT + L_BRACK "[" + RANGE_PAT + LITERAL_PAT + LITERAL + INT_NUMBER "1" + DOT2 ".." + R_BRACK "]" + WHITESPACE " " + FAT_ARROW "=>" + WHITESPACE " " + TUPLE_EXPR + L_PAREN "(" + R_PAREN ")" + COMMA "," + WHITESPACE "\n " + R_CURLY "}" + WHITESPACE "\n\n " MATCH_EXPR MATCH_KW "match" WHITESPACE " " diff --git a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs index 6c586a8956..2411d51096 100644 --- a/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs +++ b/crates/parser/test_data/parser/inline/ok/0058_range_pat.rs @@ -11,6 +11,16 @@ fn main() { Some(1..) => () } + match () { + S { a: 0 } => (), + S { a: 1.. } => (), + } + + match () { + [0] => (), + [1..] => (), + } + match (10 as u8, 5 as u8) { (0, _) => (), (1.., _) => () diff --git a/crates/parser/test_data/parser/inline/ok/0061_record_lit.rast b/crates/parser/test_data/parser/inline/ok/0061_record_lit.rast index 9997d0ae34..00948c322f 100644 --- a/crates/parser/test_data/parser/inline/ok/0061_record_lit.rast +++ b/crates/parser/test_data/parser/inline/ok/0061_record_lit.rast @@ -40,6 +40,26 @@ SOURCE_FILE PATH_SEGMENT NAME_REF IDENT "x" + WHITESPACE " " + R_CURLY "}" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + RECORD_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_EXPR_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + RECORD_EXPR_FIELD + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "x" COMMA "," WHITESPACE " " RECORD_EXPR_FIELD @@ -105,6 +125,35 @@ SOURCE_FILE PATH PATH_SEGMENT NAME_REF + IDENT "S" + WHITESPACE " " + RECORD_EXPR_FIELD_LIST + L_CURLY "{" + WHITESPACE " " + RECORD_EXPR_FIELD + NAME_REF + IDENT "x" + COLON ":" + WHITESPACE " " + CALL_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + COLON2 "::" + NAME_REF + IDENT "default" + ARG_LIST + L_PAREN "(" + R_PAREN ")" + WHITESPACE " " + R_CURLY "}" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + RECORD_EXPR + PATH + PATH_SEGMENT + NAME_REF IDENT "TupleStruct" WHITESPACE " " RECORD_EXPR_FIELD_LIST diff --git a/crates/parser/test_data/parser/inline/ok/0061_record_lit.rs b/crates/parser/test_data/parser/inline/ok/0061_record_lit.rs index 6285e55497..86411fbb7d 100644 --- a/crates/parser/test_data/parser/inline/ok/0061_record_lit.rs +++ b/crates/parser/test_data/parser/inline/ok/0061_record_lit.rs @@ -1,6 +1,8 @@ fn foo() { S {}; + S { x }; S { x, y: 32, }; S { x, y: 32, ..Default::default() }; + S { x: ::default() }; TupleStruct { 0: 1 }; } diff --git a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast index 3d3587a706..4b401b60df 100644 --- a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast +++ b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rast @@ -11,7 +11,7 @@ SOURCE_FILE BLOCK_EXPR STMT_LIST L_CURLY "{" - WHITESPACE " " + WHITESPACE "\n " LET_STMT LET_KW "let" WHITESPACE " " @@ -27,6 +27,25 @@ SOURCE_FILE LITERAL INT_NUMBER "1u32" SEMICOLON ";" - WHITESPACE " " + WHITESPACE "\n " + LET_STMT + LET_KW "let" + WHITESPACE " " + RANGE_PAT + LITERAL_PAT + LITERAL + INT_NUMBER "0" + DOT2 ".." + COLON ":" + WHITESPACE " " + INFER_TYPE + UNDERSCORE "_" + WHITESPACE " " + EQ "=" + WHITESPACE " " + LITERAL + INT_NUMBER "1u32" + SEMICOLON ";" + WHITESPACE "\n" R_CURLY "}" WHITESPACE "\n" diff --git a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs index 1360eda056..c9386a221a 100644 --- a/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs +++ b/crates/parser/test_data/parser/inline/ok/0166_half_open_range_pat.rs @@ -1 +1,4 @@ -fn f() { let 0 .. = 1u32; } +fn f() { + let 0 .. = 1u32; + let 0..: _ = 1u32; +} diff --git a/crates/proc-macro-api/src/msg/flat.rs b/crates/proc-macro-api/src/msg/flat.rs index 8437444e18..268a03bb53 100644 --- a/crates/proc-macro-api/src/msg/flat.rs +++ b/crates/proc-macro-api/src/msg/flat.rs @@ -35,10 +35,7 @@ //! as we don't have bincode in Cargo.toml yet, lets stick with serde_json for //! the time being. -use std::{ - collections::{HashMap, VecDeque}, - convert::TryInto, -}; +use std::collections::{HashMap, VecDeque}; use serde::{Deserialize, Serialize}; use tt::TokenId; diff --git a/crates/proc-macro-srv/src/abis/abi_1_58/proc_macro/mod.rs b/crates/proc-macro-srv/src/abis/abi_1_58/proc_macro/mod.rs index 4a07f22779..a405497f3c 100644 --- a/crates/proc-macro-srv/src/abis/abi_1_58/proc_macro/mod.rs +++ b/crates/proc-macro-srv/src/abis/abi_1_58/proc_macro/mod.rs @@ -157,7 +157,7 @@ impl From<TokenTree> for TokenStream { } /// Collects a number of token trees into a single stream. -impl iter::FromIterator<TokenTree> for TokenStream { +impl FromIterator<TokenTree> for TokenStream { fn from_iter<I: IntoIterator<Item = TokenTree>>(trees: I) -> Self { trees.into_iter().map(TokenStream::from).collect() } @@ -165,7 +165,7 @@ impl iter::FromIterator<TokenTree> for TokenStream { /// A "flattening" operation on token streams, collects token trees /// from multiple token streams into a single stream. -impl iter::FromIterator<TokenStream> for TokenStream { +impl FromIterator<TokenStream> for TokenStream { fn from_iter<I: IntoIterator<Item = TokenStream>>(streams: I) -> Self { let mut builder = bridge::client::TokenStreamBuilder::new(); streams.into_iter().for_each(|stream| builder.push(stream.0)); diff --git a/crates/proc-macro-srv/src/abis/abi_1_58/ra_server.rs b/crates/proc-macro-srv/src/abis/abi_1_58/ra_server.rs index ebdfca00d7..b1e982f477 100644 --- a/crates/proc-macro-srv/src/abis/abi_1_58/ra_server.rs +++ b/crates/proc-macro-srv/src/abis/abi_1_58/ra_server.rs @@ -12,7 +12,6 @@ use super::proc_macro::bridge::{self, server}; use std::collections::HashMap; use std::hash::Hash; -use std::iter::FromIterator; use std::ops::Bound; use std::{ascii, vec::IntoIter}; diff --git a/crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/mod.rs b/crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/mod.rs index c50a16bf4d..7ab1f421da 100644 --- a/crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/mod.rs +++ b/crates/proc-macro-srv/src/abis/abi_1_63/proc_macro/mod.rs @@ -207,7 +207,7 @@ impl ConcatStreamsHelper { } /// Collects a number of token trees into a single stream. -impl iter::FromIterator<TokenTree> for TokenStream { +impl FromIterator<TokenTree> for TokenStream { fn from_iter<I: IntoIterator<Item = TokenTree>>(trees: I) -> Self { trees.into_iter().map(TokenStream::from).collect() } @@ -215,7 +215,7 @@ impl iter::FromIterator<TokenTree> for TokenStream { /// A "flattening" operation on token streams, collects token trees /// from multiple token streams into a single stream. -impl iter::FromIterator<TokenStream> for TokenStream { +impl FromIterator<TokenStream> for TokenStream { fn from_iter<I: IntoIterator<Item = TokenStream>>(streams: I) -> Self { let iter = streams.into_iter(); let mut builder = ConcatStreamsHelper::new(iter.size_hint().0); diff --git a/crates/proc-macro-srv/src/abis/abi_1_63/ra_server.rs b/crates/proc-macro-srv/src/abis/abi_1_63/ra_server.rs index 05a565fbf3..ed49cc7596 100644 --- a/crates/proc-macro-srv/src/abis/abi_1_63/ra_server.rs +++ b/crates/proc-macro-srv/src/abis/abi_1_63/ra_server.rs @@ -12,7 +12,6 @@ use super::proc_macro::bridge::{self, server}; use std::collections::HashMap; use std::hash::Hash; -use std::iter::FromIterator; use std::ops::Bound; use std::{ascii, vec::IntoIter}; diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/mod.rs b/crates/proc-macro-srv/src/abis/abi_1_64/mod.rs deleted file mode 100644 index 9d56f0eaf8..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/mod.rs +++ /dev/null @@ -1,105 +0,0 @@ -//! Proc macro ABI. - -#[allow(dead_code)] -#[doc(hidden)] -mod proc_macro; - -#[allow(dead_code)] -#[doc(hidden)] -mod ra_server; - -use libloading::Library; -use proc_macro_api::ProcMacroKind; - -use super::PanicMessage; - -pub use ra_server::TokenStream; - -pub(crate) struct Abi { - exported_macros: Vec<proc_macro::bridge::client::ProcMacro>, -} - -impl From<proc_macro::bridge::PanicMessage> for PanicMessage { - fn from(p: proc_macro::bridge::PanicMessage) -> Self { - Self { message: p.as_str().map(|s| s.to_string()) } - } -} - -impl Abi { - pub unsafe fn from_lib(lib: &Library, symbol_name: String) -> Result<Abi, libloading::Error> { - let macros: libloading::Symbol<'_, &&[proc_macro::bridge::client::ProcMacro]> = - lib.get(symbol_name.as_bytes())?; - Ok(Self { exported_macros: macros.to_vec() }) - } - - pub fn expand( - &self, - macro_name: &str, - macro_body: &tt::Subtree, - attributes: Option<&tt::Subtree>, - ) -> Result<tt::Subtree, PanicMessage> { - let parsed_body = TokenStream::with_subtree(macro_body.clone()); - - let parsed_attributes = - attributes.map_or(TokenStream::new(), |attr| TokenStream::with_subtree(attr.clone())); - - for proc_macro in &self.exported_macros { - match proc_macro { - proc_macro::bridge::client::ProcMacro::CustomDerive { - trait_name, client, .. - } if *trait_name == macro_name => { - let res = client.run( - &proc_macro::bridge::server::SameThread, - ra_server::RustAnalyzer::default(), - parsed_body, - true, - ); - return res.map(|it| it.into_subtree()).map_err(PanicMessage::from); - } - proc_macro::bridge::client::ProcMacro::Bang { name, client } - if *name == macro_name => - { - let res = client.run( - &proc_macro::bridge::server::SameThread, - ra_server::RustAnalyzer::default(), - parsed_body, - true, - ); - return res.map(|it| it.into_subtree()).map_err(PanicMessage::from); - } - proc_macro::bridge::client::ProcMacro::Attr { name, client } - if *name == macro_name => - { - let res = client.run( - &proc_macro::bridge::server::SameThread, - ra_server::RustAnalyzer::default(), - parsed_attributes, - parsed_body, - true, - ); - return res.map(|it| it.into_subtree()).map_err(PanicMessage::from); - } - _ => continue, - } - } - - Err(proc_macro::bridge::PanicMessage::String("Nothing to expand".to_string()).into()) - } - - pub fn list_macros(&self) -> Vec<(String, ProcMacroKind)> { - self.exported_macros - .iter() - .map(|proc_macro| match proc_macro { - proc_macro::bridge::client::ProcMacro::CustomDerive { trait_name, .. } => { - (trait_name.to_string(), ProcMacroKind::CustomDerive) - } - proc_macro::bridge::client::ProcMacro::Bang { name, .. } => { - (name.to_string(), ProcMacroKind::FuncLike) - } - proc_macro::bridge::client::ProcMacro::Attr { name, .. } => { - (name.to_string(), ProcMacroKind::Attr) - } - }) - .collect() - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/buffer.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/buffer.rs deleted file mode 100644 index 48030f8d82..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/buffer.rs +++ /dev/null @@ -1,156 +0,0 @@ -//! Buffer management for same-process client<->server communication. - -use std::io::{self, Write}; -use std::mem; -use std::ops::{Deref, DerefMut}; -use std::slice; - -#[repr(C)] -pub struct Buffer { - data: *mut u8, - len: usize, - capacity: usize, - reserve: extern "C" fn(Buffer, usize) -> Buffer, - drop: extern "C" fn(Buffer), -} - -unsafe impl Sync for Buffer {} -unsafe impl Send for Buffer {} - -impl Default for Buffer { - #[inline] - fn default() -> Self { - Self::from(vec![]) - } -} - -impl Deref for Buffer { - type Target = [u8]; - #[inline] - fn deref(&self) -> &[u8] { - unsafe { slice::from_raw_parts(self.data as *const u8, self.len) } - } -} - -impl DerefMut for Buffer { - #[inline] - fn deref_mut(&mut self) -> &mut [u8] { - unsafe { slice::from_raw_parts_mut(self.data, self.len) } - } -} - -impl Buffer { - #[inline] - pub(super) fn new() -> Self { - Self::default() - } - - #[inline] - pub(super) fn clear(&mut self) { - self.len = 0; - } - - #[inline] - pub(super) fn take(&mut self) -> Self { - mem::take(self) - } - - // We have the array method separate from extending from a slice. This is - // because in the case of small arrays, codegen can be more efficient - // (avoiding a memmove call). With extend_from_slice, LLVM at least - // currently is not able to make that optimization. - #[inline] - pub(super) fn extend_from_array<const N: usize>(&mut self, xs: &[u8; N]) { - if xs.len() > (self.capacity - self.len) { - let b = self.take(); - *self = (b.reserve)(b, xs.len()); - } - unsafe { - xs.as_ptr().copy_to_nonoverlapping(self.data.add(self.len), xs.len()); - self.len += xs.len(); - } - } - - #[inline] - pub(super) fn extend_from_slice(&mut self, xs: &[u8]) { - if xs.len() > (self.capacity - self.len) { - let b = self.take(); - *self = (b.reserve)(b, xs.len()); - } - unsafe { - xs.as_ptr().copy_to_nonoverlapping(self.data.add(self.len), xs.len()); - self.len += xs.len(); - } - } - - #[inline] - pub(super) fn push(&mut self, v: u8) { - // The code here is taken from Vec::push, and we know that reserve() - // will panic if we're exceeding isize::MAX bytes and so there's no need - // to check for overflow. - if self.len == self.capacity { - let b = self.take(); - *self = (b.reserve)(b, 1); - } - unsafe { - *self.data.add(self.len) = v; - self.len += 1; - } - } -} - -impl Write for Buffer { - #[inline] - fn write(&mut self, xs: &[u8]) -> io::Result<usize> { - self.extend_from_slice(xs); - Ok(xs.len()) - } - - #[inline] - fn write_all(&mut self, xs: &[u8]) -> io::Result<()> { - self.extend_from_slice(xs); - Ok(()) - } - - #[inline] - fn flush(&mut self) -> io::Result<()> { - Ok(()) - } -} - -impl Drop for Buffer { - #[inline] - fn drop(&mut self) { - let b = self.take(); - (b.drop)(b); - } -} - -impl From<Vec<u8>> for Buffer { - fn from(mut v: Vec<u8>) -> Self { - let (data, len, capacity) = (v.as_mut_ptr(), v.len(), v.capacity()); - mem::forget(v); - - // This utility function is nested in here because it can *only* - // be safely called on `Buffer`s created by *this* `proc_macro`. - fn to_vec(b: Buffer) -> Vec<u8> { - unsafe { - let Buffer { data, len, capacity, .. } = b; - mem::forget(b); - Vec::from_raw_parts(data, len, capacity) - } - } - - extern "C" fn reserve(b: Buffer, additional: usize) -> Buffer { - let mut v = to_vec(b); - v.reserve(additional); - Buffer::from(v) - } - - extern "C" fn drop(b: Buffer) { - mem::drop(to_vec(b)); - } - - Buffer { data, len, capacity, reserve, drop } - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/client.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/client.rs deleted file mode 100644 index 22bda8ba5a..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/client.rs +++ /dev/null @@ -1,529 +0,0 @@ -//! Client-side types. - -use super::*; - -use std::marker::PhantomData; - -macro_rules! define_handles { - ( - 'owned: $($oty:ident,)* - 'interned: $($ity:ident,)* - ) => { - #[repr(C)] - #[allow(non_snake_case)] - pub struct HandleCounters { - $($oty: AtomicUsize,)* - $($ity: AtomicUsize,)* - } - - impl HandleCounters { - // FIXME(eddyb) use a reference to the `static COUNTERS`, instead of - // a wrapper `fn` pointer, once `const fn` can reference `static`s. - extern "C" fn get() -> &'static Self { - static COUNTERS: HandleCounters = HandleCounters { - $($oty: AtomicUsize::new(1),)* - $($ity: AtomicUsize::new(1),)* - }; - &COUNTERS - } - } - - // FIXME(eddyb) generate the definition of `HandleStore` in `server.rs`. - #[repr(C)] - #[allow(non_snake_case)] - pub(super) struct HandleStore<S: server::Types> { - $($oty: handle::OwnedStore<S::$oty>,)* - $($ity: handle::InternedStore<S::$ity>,)* - } - - impl<S: server::Types> HandleStore<S> { - pub(super) fn new(handle_counters: &'static HandleCounters) -> Self { - HandleStore { - $($oty: handle::OwnedStore::new(&handle_counters.$oty),)* - $($ity: handle::InternedStore::new(&handle_counters.$ity),)* - } - } - } - - $( - #[repr(C)] - pub(crate) struct $oty { - handle: handle::Handle, - // Prevent Send and Sync impls. `!Send`/`!Sync` is the usual - // way of doing this, but that requires unstable features. - // rust-analyzer uses this code and avoids unstable features. - _marker: PhantomData<*mut ()>, - } - - // Forward `Drop::drop` to the inherent `drop` method. - impl Drop for $oty { - fn drop(&mut self) { - $oty { - handle: self.handle, - _marker: PhantomData, - }.drop(); - } - } - - impl<S> Encode<S> for $oty { - fn encode(self, w: &mut Writer, s: &mut S) { - let handle = self.handle; - mem::forget(self); - handle.encode(w, s); - } - } - - impl<S: server::Types> DecodeMut<'_, '_, HandleStore<server::MarkedTypes<S>>> - for Marked<S::$oty, $oty> - { - fn decode(r: &mut Reader<'_>, s: &mut HandleStore<server::MarkedTypes<S>>) -> Self { - s.$oty.take(handle::Handle::decode(r, &mut ())) - } - } - - impl<S> Encode<S> for &$oty { - fn encode(self, w: &mut Writer, s: &mut S) { - self.handle.encode(w, s); - } - } - - impl<'s, S: server::Types> Decode<'_, 's, HandleStore<server::MarkedTypes<S>>> - for &'s Marked<S::$oty, $oty> - { - fn decode(r: &mut Reader<'_>, s: &'s HandleStore<server::MarkedTypes<S>>) -> Self { - &s.$oty[handle::Handle::decode(r, &mut ())] - } - } - - impl<S> Encode<S> for &mut $oty { - fn encode(self, w: &mut Writer, s: &mut S) { - self.handle.encode(w, s); - } - } - - impl<'s, S: server::Types> DecodeMut<'_, 's, HandleStore<server::MarkedTypes<S>>> - for &'s mut Marked<S::$oty, $oty> - { - fn decode( - r: &mut Reader<'_>, - s: &'s mut HandleStore<server::MarkedTypes<S>> - ) -> Self { - &mut s.$oty[handle::Handle::decode(r, &mut ())] - } - } - - impl<S: server::Types> Encode<HandleStore<server::MarkedTypes<S>>> - for Marked<S::$oty, $oty> - { - fn encode(self, w: &mut Writer, s: &mut HandleStore<server::MarkedTypes<S>>) { - s.$oty.alloc(self).encode(w, s); - } - } - - impl<S> DecodeMut<'_, '_, S> for $oty { - fn decode(r: &mut Reader<'_>, s: &mut S) -> Self { - $oty { - handle: handle::Handle::decode(r, s), - _marker: PhantomData, - } - } - } - )* - - $( - #[repr(C)] - #[derive(Copy, Clone, PartialEq, Eq, Hash)] - pub(crate) struct $ity { - handle: handle::Handle, - // Prevent Send and Sync impls. `!Send`/`!Sync` is the usual - // way of doing this, but that requires unstable features. - // rust-analyzer uses this code and avoids unstable features. - _marker: PhantomData<*mut ()>, - } - - impl<S> Encode<S> for $ity { - fn encode(self, w: &mut Writer, s: &mut S) { - self.handle.encode(w, s); - } - } - - impl<S: server::Types> DecodeMut<'_, '_, HandleStore<server::MarkedTypes<S>>> - for Marked<S::$ity, $ity> - { - fn decode(r: &mut Reader<'_>, s: &mut HandleStore<server::MarkedTypes<S>>) -> Self { - s.$ity.copy(handle::Handle::decode(r, &mut ())) - } - } - - impl<S: server::Types> Encode<HandleStore<server::MarkedTypes<S>>> - for Marked<S::$ity, $ity> - { - fn encode(self, w: &mut Writer, s: &mut HandleStore<server::MarkedTypes<S>>) { - s.$ity.alloc(self).encode(w, s); - } - } - - impl<S> DecodeMut<'_, '_, S> for $ity { - fn decode(r: &mut Reader<'_>, s: &mut S) -> Self { - $ity { - handle: handle::Handle::decode(r, s), - _marker: PhantomData, - } - } - } - )* - } -} -define_handles! { - 'owned: - FreeFunctions, - TokenStream, - Literal, - SourceFile, - MultiSpan, - Diagnostic, - - 'interned: - Ident, - Span, -} - -// FIXME(eddyb) generate these impls by pattern-matching on the -// names of methods - also could use the presence of `fn drop` -// to distinguish between 'owned and 'interned, above. -// Alternatively, special "modes" could be listed of types in with_api -// instead of pattern matching on methods, here and in server decl. - -impl Clone for TokenStream { - fn clone(&self) -> Self { - self.clone() - } -} - -impl Clone for Literal { - fn clone(&self) -> Self { - self.clone() - } -} - -impl fmt::Debug for Literal { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("Literal") - // format the kind without quotes, as in `kind: Float` - .field("kind", &format_args!("{}", &self.debug_kind())) - .field("symbol", &self.symbol()) - // format `Some("...")` on one line even in {:#?} mode - .field("suffix", &format_args!("{:?}", &self.suffix())) - .field("span", &self.span()) - .finish() - } -} - -impl Clone for SourceFile { - fn clone(&self) -> Self { - self.clone() - } -} - -impl Span { - pub(crate) fn def_site() -> Span { - Bridge::with(|bridge| bridge.globals.def_site) - } - - pub(crate) fn call_site() -> Span { - Bridge::with(|bridge| bridge.globals.call_site) - } - - pub(crate) fn mixed_site() -> Span { - Bridge::with(|bridge| bridge.globals.mixed_site) - } -} - -impl fmt::Debug for Span { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(&self.debug()) - } -} - -macro_rules! define_client_side { - ($($name:ident { - $(fn $method:ident($($arg:ident: $arg_ty:ty),* $(,)?) $(-> $ret_ty:ty)*;)* - }),* $(,)?) => { - $(impl $name { - $(pub(crate) fn $method($($arg: $arg_ty),*) $(-> $ret_ty)* { - Bridge::with(|bridge| { - let mut buf = bridge.cached_buffer.take(); - - buf.clear(); - api_tags::Method::$name(api_tags::$name::$method).encode(&mut buf, &mut ()); - reverse_encode!(buf; $($arg),*); - - buf = bridge.dispatch.call(buf); - - let r = Result::<_, PanicMessage>::decode(&mut &buf[..], &mut ()); - - bridge.cached_buffer = buf; - - r.unwrap_or_else(|e| panic::resume_unwind(e.into())) - }) - })* - })* - } -} -with_api!(self, self, define_client_side); - -struct Bridge<'a> { - /// Reusable buffer (only `clear`-ed, never shrunk), primarily - /// used for making requests. - cached_buffer: Buffer, - - /// Server-side function that the client uses to make requests. - dispatch: closure::Closure<'a, Buffer, Buffer>, - - /// Provided globals for this macro expansion. - globals: ExpnGlobals<Span>, -} - -enum BridgeState<'a> { - /// No server is currently connected to this client. - NotConnected, - - /// A server is connected and available for requests. - Connected(Bridge<'a>), - - /// Access to the bridge is being exclusively acquired - /// (e.g., during `BridgeState::with`). - InUse, -} - -enum BridgeStateL {} - -impl<'a> scoped_cell::ApplyL<'a> for BridgeStateL { - type Out = BridgeState<'a>; -} - -thread_local! { - static BRIDGE_STATE: scoped_cell::ScopedCell<BridgeStateL> = - scoped_cell::ScopedCell::new(BridgeState::NotConnected); -} - -impl BridgeState<'_> { - /// Take exclusive control of the thread-local - /// `BridgeState`, and pass it to `f`, mutably. - /// The state will be restored after `f` exits, even - /// by panic, including modifications made to it by `f`. - /// - /// N.B., while `f` is running, the thread-local state - /// is `BridgeState::InUse`. - fn with<R>(f: impl FnOnce(&mut BridgeState<'_>) -> R) -> R { - BRIDGE_STATE.with(|state| { - state.replace(BridgeState::InUse, |mut state| { - // FIXME(#52812) pass `f` directly to `replace` when `RefMutL` is gone - f(&mut *state) - }) - }) - } -} - -impl Bridge<'_> { - fn with<R>(f: impl FnOnce(&mut Bridge<'_>) -> R) -> R { - BridgeState::with(|state| match state { - BridgeState::NotConnected => { - panic!("procedural macro API is used outside of a procedural macro"); - } - BridgeState::InUse => { - panic!("procedural macro API is used while it's already in use"); - } - BridgeState::Connected(bridge) => f(bridge), - }) - } -} - -pub(crate) fn is_available() -> bool { - BridgeState::with(|state| match state { - BridgeState::Connected(_) | BridgeState::InUse => true, - BridgeState::NotConnected => false, - }) -} - -/// A client-side RPC entry-point, which may be using a different `proc_macro` -/// from the one used by the server, but can be invoked compatibly. -/// -/// Note that the (phantom) `I` ("input") and `O` ("output") type parameters -/// decorate the `Client<I, O>` with the RPC "interface" of the entry-point, but -/// do not themselves participate in ABI, at all, only facilitate type-checking. -/// -/// E.g. `Client<TokenStream, TokenStream>` is the common proc macro interface, -/// used for `#[proc_macro] fn foo(input: TokenStream) -> TokenStream`, -/// indicating that the RPC input and output will be serialized token streams, -/// and forcing the use of APIs that take/return `S::TokenStream`, server-side. -#[repr(C)] -pub struct Client<I, O> { - // FIXME(eddyb) use a reference to the `static COUNTERS`, instead of - // a wrapper `fn` pointer, once `const fn` can reference `static`s. - pub(super) get_handle_counters: extern "C" fn() -> &'static HandleCounters, - - pub(super) run: extern "C" fn(BridgeConfig<'_>) -> Buffer, - - pub(super) _marker: PhantomData<fn(I) -> O>, -} - -impl<I, O> Copy for Client<I, O> {} -impl<I, O> Clone for Client<I, O> { - fn clone(&self) -> Self { - *self - } -} - -fn maybe_install_panic_hook(force_show_panics: bool) { - // Hide the default panic output within `proc_macro` expansions. - // NB. the server can't do this because it may use a different libstd. - static HIDE_PANICS_DURING_EXPANSION: Once = Once::new(); - HIDE_PANICS_DURING_EXPANSION.call_once(|| { - let prev = panic::take_hook(); - panic::set_hook(Box::new(move |info| { - let show = BridgeState::with(|state| match state { - BridgeState::NotConnected => true, - BridgeState::Connected(_) | BridgeState::InUse => force_show_panics, - }); - if show { - prev(info) - } - })); - }); -} - -/// Client-side helper for handling client panics, entering the bridge, -/// deserializing input and serializing output. -// FIXME(eddyb) maybe replace `Bridge::enter` with this? -fn run_client<A: for<'a, 's> DecodeMut<'a, 's, ()>, R: Encode<()>>( - config: BridgeConfig<'_>, - f: impl FnOnce(A) -> R, -) -> Buffer { - let BridgeConfig { input: mut buf, dispatch, force_show_panics, .. } = config; - - panic::catch_unwind(panic::AssertUnwindSafe(|| { - maybe_install_panic_hook(force_show_panics); - - let reader = &mut &buf[..]; - let (globals, input) = <(ExpnGlobals<Span>, A)>::decode(reader, &mut ()); - - // Put the buffer we used for input back in the `Bridge` for requests. - let new_state = - BridgeState::Connected(Bridge { cached_buffer: buf.take(), dispatch, globals }); - - BRIDGE_STATE.with(|state| { - state.set(new_state, || { - let output = f(input); - - // Take the `cached_buffer` back out, for the output value. - buf = Bridge::with(|bridge| bridge.cached_buffer.take()); - - // HACK(eddyb) Separate encoding a success value (`Ok(output)`) - // from encoding a panic (`Err(e: PanicMessage)`) to avoid - // having handles outside the `bridge.enter(|| ...)` scope, and - // to catch panics that could happen while encoding the success. - // - // Note that panics should be impossible beyond this point, but - // this is defensively trying to avoid any accidental panicking - // reaching the `extern "C"` (which should `abort` but might not - // at the moment, so this is also potentially preventing UB). - buf.clear(); - Ok::<_, ()>(output).encode(&mut buf, &mut ()); - }) - }) - })) - .map_err(PanicMessage::from) - .unwrap_or_else(|e| { - buf.clear(); - Err::<(), _>(e).encode(&mut buf, &mut ()); - }); - buf -} - -impl Client<super::super::TokenStream, super::super::TokenStream> { - pub const fn expand1( - f: impl Fn(super::super::TokenStream) -> super::super::TokenStream + Copy, - ) -> Self { - Client { - get_handle_counters: HandleCounters::get, - run: super::selfless_reify::reify_to_extern_c_fn_hrt_bridge(move |bridge| { - run_client(bridge, |input| f(super::super::TokenStream(input)).0) - }), - _marker: PhantomData, - } - } -} - -impl Client<(super::super::TokenStream, super::super::TokenStream), super::super::TokenStream> { - pub const fn expand2( - f: impl Fn(super::super::TokenStream, super::super::TokenStream) -> super::super::TokenStream - + Copy, - ) -> Self { - Client { - get_handle_counters: HandleCounters::get, - run: super::selfless_reify::reify_to_extern_c_fn_hrt_bridge(move |bridge| { - run_client(bridge, |(input, input2)| { - f(super::super::TokenStream(input), super::super::TokenStream(input2)).0 - }) - }), - _marker: PhantomData, - } - } -} - -#[repr(C)] -#[derive(Copy, Clone)] -pub enum ProcMacro { - CustomDerive { - trait_name: &'static str, - attributes: &'static [&'static str], - client: Client<super::super::TokenStream, super::super::TokenStream>, - }, - - Attr { - name: &'static str, - client: Client< - (super::super::TokenStream, super::super::TokenStream), - super::super::TokenStream, - >, - }, - - Bang { - name: &'static str, - client: Client<super::super::TokenStream, super::super::TokenStream>, - }, -} - -impl ProcMacro { - pub fn name(&self) -> &'static str { - match self { - ProcMacro::CustomDerive { trait_name, .. } => trait_name, - ProcMacro::Attr { name, .. } => name, - ProcMacro::Bang { name, .. } => name, - } - } - - pub const fn custom_derive( - trait_name: &'static str, - attributes: &'static [&'static str], - expand: impl Fn(super::super::TokenStream) -> super::super::TokenStream + Copy, - ) -> Self { - ProcMacro::CustomDerive { trait_name, attributes, client: Client::expand1(expand) } - } - - pub const fn attr( - name: &'static str, - expand: impl Fn(super::super::TokenStream, super::super::TokenStream) -> super::super::TokenStream - + Copy, - ) -> Self { - ProcMacro::Attr { name, client: Client::expand2(expand) } - } - - pub const fn bang( - name: &'static str, - expand: impl Fn(super::super::TokenStream) -> super::super::TokenStream + Copy, - ) -> Self { - ProcMacro::Bang { name, client: Client::expand1(expand) } - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/closure.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/closure.rs deleted file mode 100644 index d371ae3cea..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/closure.rs +++ /dev/null @@ -1,32 +0,0 @@ -//! Closure type (equivalent to `&mut dyn FnMut(A) -> R`) that's `repr(C)`. - -use std::marker::PhantomData; - -#[repr(C)] -pub struct Closure<'a, A, R> { - call: unsafe extern "C" fn(*mut Env, A) -> R, - env: *mut Env, - // Prevent Send and Sync impls. `!Send`/`!Sync` is the usual way of doing - // this, but that requires unstable features. rust-analyzer uses this code - // and avoids unstable features. - // - // The `'a` lifetime parameter represents the lifetime of `Env`. - _marker: PhantomData<*mut &'a mut ()>, -} - -struct Env; - -impl<'a, A, R, F: FnMut(A) -> R> From<&'a mut F> for Closure<'a, A, R> { - fn from(f: &'a mut F) -> Self { - unsafe extern "C" fn call<A, R, F: FnMut(A) -> R>(env: *mut Env, arg: A) -> R { - (*(env as *mut _ as *mut F))(arg) - } - Closure { call: call::<A, R, F>, env: f as *mut _ as *mut Env, _marker: PhantomData } - } -} - -impl<'a, A, R> Closure<'a, A, R> { - pub fn call(&mut self, arg: A) -> R { - unsafe { (self.call)(self.env, arg) } - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/handle.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/handle.rs deleted file mode 100644 index c219a9465d..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/handle.rs +++ /dev/null @@ -1,89 +0,0 @@ -//! Server-side handles and storage for per-handle data. - -use std::collections::{BTreeMap, HashMap}; -use std::hash::{BuildHasher, Hash}; -use std::num::NonZeroU32; -use std::ops::{Index, IndexMut}; -use std::sync::atomic::{AtomicUsize, Ordering}; - -pub(super) type Handle = NonZeroU32; - -/// A store that associates values of type `T` with numeric handles. A value can -/// be looked up using its handle. -pub(super) struct OwnedStore<T: 'static> { - counter: &'static AtomicUsize, - data: BTreeMap<Handle, T>, -} - -impl<T> OwnedStore<T> { - pub(super) fn new(counter: &'static AtomicUsize) -> Self { - // Ensure the handle counter isn't 0, which would panic later, - // when `NonZeroU32::new` (aka `Handle::new`) is called in `alloc`. - assert_ne!(counter.load(Ordering::SeqCst), 0); - - OwnedStore { counter, data: BTreeMap::new() } - } -} - -impl<T> OwnedStore<T> { - pub(super) fn alloc(&mut self, x: T) -> Handle { - let counter = self.counter.fetch_add(1, Ordering::SeqCst); - let handle = Handle::new(counter as u32).expect("`proc_macro` handle counter overflowed"); - assert!(self.data.insert(handle, x).is_none()); - handle - } - - pub(super) fn take(&mut self, h: Handle) -> T { - self.data.remove(&h).expect("use-after-free in `proc_macro` handle") - } -} - -impl<T> Index<Handle> for OwnedStore<T> { - type Output = T; - fn index(&self, h: Handle) -> &T { - self.data.get(&h).expect("use-after-free in `proc_macro` handle") - } -} - -impl<T> IndexMut<Handle> for OwnedStore<T> { - fn index_mut(&mut self, h: Handle) -> &mut T { - self.data.get_mut(&h).expect("use-after-free in `proc_macro` handle") - } -} - -// HACK(eddyb) deterministic `std::collections::hash_map::RandomState` replacement -// that doesn't require adding any dependencies to `proc_macro` (like `rustc-hash`). -#[derive(Clone)] -struct NonRandomState; - -impl BuildHasher for NonRandomState { - type Hasher = std::collections::hash_map::DefaultHasher; - #[inline] - fn build_hasher(&self) -> Self::Hasher { - Self::Hasher::new() - } -} - -/// Like `OwnedStore`, but avoids storing any value more than once. -pub(super) struct InternedStore<T: 'static> { - owned: OwnedStore<T>, - interner: HashMap<T, Handle, NonRandomState>, -} - -impl<T: Copy + Eq + Hash> InternedStore<T> { - pub(super) fn new(counter: &'static AtomicUsize) -> Self { - InternedStore { - owned: OwnedStore::new(counter), - interner: HashMap::with_hasher(NonRandomState), - } - } - - pub(super) fn alloc(&mut self, x: T) -> Handle { - let owned = &mut self.owned; - *self.interner.entry(x).or_insert_with(|| owned.alloc(x)) - } - - pub(super) fn copy(&mut self, h: Handle) -> T { - self.owned[h] - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/mod.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/mod.rs deleted file mode 100644 index ffd4407932..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/mod.rs +++ /dev/null @@ -1,493 +0,0 @@ -//! Internal interface for communicating between a `proc_macro` client -//! (a proc macro crate) and a `proc_macro` server (a compiler front-end). -//! -//! Serialization (with C ABI buffers) and unique integer handles are employed -//! to allow safely interfacing between two copies of `proc_macro` built -//! (from the same source) by different compilers with potentially mismatching -//! Rust ABIs (e.g., stage0/bin/rustc vs stage1/bin/rustc during bootstrap). - -#![deny(unsafe_code)] - -pub use super::{Delimiter, Level, LineColumn, Spacing}; -use std::fmt; -use std::hash::Hash; -use std::marker; -use std::mem; -use std::ops::Bound; -use std::panic; -use std::sync::atomic::AtomicUsize; -use std::sync::Once; -use std::thread; - -/// Higher-order macro describing the server RPC API, allowing automatic -/// generation of type-safe Rust APIs, both client-side and server-side. -/// -/// `with_api!(MySelf, my_self, my_macro)` expands to: -/// ```rust,ignore (pseudo-code) -/// my_macro! { -/// // ... -/// Literal { -/// // ... -/// fn character(ch: char) -> MySelf::Literal; -/// // ... -/// fn span(my_self: &MySelf::Literal) -> MySelf::Span; -/// fn set_span(my_self: &mut MySelf::Literal, span: MySelf::Span); -/// }, -/// // ... -/// } -/// ``` -/// -/// The first two arguments serve to customize the arguments names -/// and argument/return types, to enable several different usecases: -/// -/// If `my_self` is just `self`, then each `fn` signature can be used -/// as-is for a method. If it's anything else (`self_` in practice), -/// then the signatures don't have a special `self` argument, and -/// can, therefore, have a different one introduced. -/// -/// If `MySelf` is just `Self`, then the types are only valid inside -/// a trait or a trait impl, where the trait has associated types -/// for each of the API types. If non-associated types are desired, -/// a module name (`self` in practice) can be used instead of `Self`. -macro_rules! with_api { - ($S:ident, $self:ident, $m:ident) => { - $m! { - FreeFunctions { - fn drop($self: $S::FreeFunctions); - fn track_env_var(var: &str, value: Option<&str>); - fn track_path(path: &str); - }, - TokenStream { - fn drop($self: $S::TokenStream); - fn clone($self: &$S::TokenStream) -> $S::TokenStream; - fn is_empty($self: &$S::TokenStream) -> bool; - fn expand_expr($self: &$S::TokenStream) -> Result<$S::TokenStream, ()>; - fn from_str(src: &str) -> $S::TokenStream; - fn to_string($self: &$S::TokenStream) -> String; - fn from_token_tree( - tree: TokenTree<$S::TokenStream, $S::Span, $S::Ident, $S::Literal>, - ) -> $S::TokenStream; - fn concat_trees( - base: Option<$S::TokenStream>, - trees: Vec<TokenTree<$S::TokenStream, $S::Span, $S::Ident, $S::Literal>>, - ) -> $S::TokenStream; - fn concat_streams( - base: Option<$S::TokenStream>, - streams: Vec<$S::TokenStream>, - ) -> $S::TokenStream; - fn into_trees( - $self: $S::TokenStream - ) -> Vec<TokenTree<$S::TokenStream, $S::Span, $S::Ident, $S::Literal>>; - }, - Ident { - fn new(string: &str, span: $S::Span, is_raw: bool) -> $S::Ident; - fn span($self: $S::Ident) -> $S::Span; - fn with_span($self: $S::Ident, span: $S::Span) -> $S::Ident; - }, - Literal { - fn drop($self: $S::Literal); - fn clone($self: &$S::Literal) -> $S::Literal; - fn from_str(s: &str) -> Result<$S::Literal, ()>; - fn to_string($self: &$S::Literal) -> String; - fn debug_kind($self: &$S::Literal) -> String; - fn symbol($self: &$S::Literal) -> String; - fn suffix($self: &$S::Literal) -> Option<String>; - fn integer(n: &str) -> $S::Literal; - fn typed_integer(n: &str, kind: &str) -> $S::Literal; - fn float(n: &str) -> $S::Literal; - fn f32(n: &str) -> $S::Literal; - fn f64(n: &str) -> $S::Literal; - fn string(string: &str) -> $S::Literal; - fn character(ch: char) -> $S::Literal; - fn byte_string(bytes: &[u8]) -> $S::Literal; - fn span($self: &$S::Literal) -> $S::Span; - fn set_span($self: &mut $S::Literal, span: $S::Span); - fn subspan( - $self: &$S::Literal, - start: Bound<usize>, - end: Bound<usize>, - ) -> Option<$S::Span>; - }, - SourceFile { - fn drop($self: $S::SourceFile); - fn clone($self: &$S::SourceFile) -> $S::SourceFile; - fn eq($self: &$S::SourceFile, other: &$S::SourceFile) -> bool; - fn path($self: &$S::SourceFile) -> String; - fn is_real($self: &$S::SourceFile) -> bool; - }, - MultiSpan { - fn drop($self: $S::MultiSpan); - fn new() -> $S::MultiSpan; - fn push($self: &mut $S::MultiSpan, span: $S::Span); - }, - Diagnostic { - fn drop($self: $S::Diagnostic); - fn new(level: Level, msg: &str, span: $S::MultiSpan) -> $S::Diagnostic; - fn sub( - $self: &mut $S::Diagnostic, - level: Level, - msg: &str, - span: $S::MultiSpan, - ); - fn emit($self: $S::Diagnostic); - }, - Span { - fn debug($self: $S::Span) -> String; - fn source_file($self: $S::Span) -> $S::SourceFile; - fn parent($self: $S::Span) -> Option<$S::Span>; - fn source($self: $S::Span) -> $S::Span; - fn start($self: $S::Span) -> LineColumn; - fn end($self: $S::Span) -> LineColumn; - fn before($self: $S::Span) -> $S::Span; - fn after($self: $S::Span) -> $S::Span; - fn join($self: $S::Span, other: $S::Span) -> Option<$S::Span>; - fn resolved_at($self: $S::Span, at: $S::Span) -> $S::Span; - fn source_text($self: $S::Span) -> Option<String>; - fn save_span($self: $S::Span) -> usize; - fn recover_proc_macro_span(id: usize) -> $S::Span; - }, - } - }; -} - -// FIXME(eddyb) this calls `encode` for each argument, but in reverse, -// to match the ordering in `reverse_decode`. -macro_rules! reverse_encode { - ($writer:ident;) => {}; - ($writer:ident; $first:ident $(, $rest:ident)*) => { - reverse_encode!($writer; $($rest),*); - $first.encode(&mut $writer, &mut ()); - } -} - -// FIXME(eddyb) this calls `decode` for each argument, but in reverse, -// to avoid borrow conflicts from borrows started by `&mut` arguments. -macro_rules! reverse_decode { - ($reader:ident, $s:ident;) => {}; - ($reader:ident, $s:ident; $first:ident: $first_ty:ty $(, $rest:ident: $rest_ty:ty)*) => { - reverse_decode!($reader, $s; $($rest: $rest_ty),*); - let $first = <$first_ty>::decode(&mut $reader, $s); - } -} - -#[allow(unsafe_code)] -mod buffer; -#[forbid(unsafe_code)] -pub mod client; -#[allow(unsafe_code)] -mod closure; -#[forbid(unsafe_code)] -mod handle; -#[macro_use] -#[forbid(unsafe_code)] -mod rpc; -#[allow(unsafe_code)] -mod scoped_cell; -#[allow(unsafe_code)] -mod selfless_reify; -#[forbid(unsafe_code)] -pub mod server; - -use buffer::Buffer; -pub use rpc::PanicMessage; -use rpc::{Decode, DecodeMut, Encode, Reader, Writer}; - -/// Configuration for establishing an active connection between a server and a -/// client. The server creates the bridge config (`run_server` in `server.rs`), -/// then passes it to the client through the function pointer in the `run` field -/// of `client::Client`. The client constructs a local `Bridge` from the config -/// in TLS during its execution (`Bridge::{enter, with}` in `client.rs`). -#[repr(C)] -pub struct BridgeConfig<'a> { - /// Buffer used to pass initial input to the client. - input: Buffer, - - /// Server-side function that the client uses to make requests. - dispatch: closure::Closure<'a, Buffer, Buffer>, - - /// If 'true', always invoke the default panic hook - force_show_panics: bool, - - // Prevent Send and Sync impls. `!Send`/`!Sync` is the usual way of doing - // this, but that requires unstable features. rust-analyzer uses this code - // and avoids unstable features. - _marker: marker::PhantomData<*mut ()>, -} - -#[forbid(unsafe_code)] -#[allow(non_camel_case_types)] -mod api_tags { - use super::rpc::{DecodeMut, Encode, Reader, Writer}; - - macro_rules! declare_tags { - ($($name:ident { - $(fn $method:ident($($arg:ident: $arg_ty:ty),* $(,)?) $(-> $ret_ty:ty)*;)* - }),* $(,)?) => { - $( - pub(super) enum $name { - $($method),* - } - rpc_encode_decode!(enum $name { $($method),* }); - )* - - pub(super) enum Method { - $($name($name)),* - } - rpc_encode_decode!(enum Method { $($name(m)),* }); - } - } - with_api!(self, self, declare_tags); -} - -/// Helper to wrap associated types to allow trait impl dispatch. -/// That is, normally a pair of impls for `T::Foo` and `T::Bar` -/// can overlap, but if the impls are, instead, on types like -/// `Marked<T::Foo, Foo>` and `Marked<T::Bar, Bar>`, they can't. -trait Mark { - type Unmarked; - fn mark(unmarked: Self::Unmarked) -> Self; -} - -/// Unwrap types wrapped by `Mark::mark` (see `Mark` for details). -trait Unmark { - type Unmarked; - fn unmark(self) -> Self::Unmarked; -} - -#[derive(Copy, Clone, PartialEq, Eq, Hash)] -struct Marked<T, M> { - value: T, - _marker: marker::PhantomData<M>, -} - -impl<T, M> Mark for Marked<T, M> { - type Unmarked = T; - fn mark(unmarked: Self::Unmarked) -> Self { - Marked { value: unmarked, _marker: marker::PhantomData } - } -} -impl<T, M> Unmark for Marked<T, M> { - type Unmarked = T; - fn unmark(self) -> Self::Unmarked { - self.value - } -} -impl<'a, T, M> Unmark for &'a Marked<T, M> { - type Unmarked = &'a T; - fn unmark(self) -> Self::Unmarked { - &self.value - } -} -impl<'a, T, M> Unmark for &'a mut Marked<T, M> { - type Unmarked = &'a mut T; - fn unmark(self) -> Self::Unmarked { - &mut self.value - } -} - -impl<T: Mark> Mark for Vec<T> { - type Unmarked = Vec<T::Unmarked>; - fn mark(unmarked: Self::Unmarked) -> Self { - // Should be a no-op due to std's in-place collect optimizations. - unmarked.into_iter().map(T::mark).collect() - } -} -impl<T: Unmark> Unmark for Vec<T> { - type Unmarked = Vec<T::Unmarked>; - fn unmark(self) -> Self::Unmarked { - // Should be a no-op due to std's in-place collect optimizations. - self.into_iter().map(T::unmark).collect() - } -} - -macro_rules! mark_noop { - ($($ty:ty),* $(,)?) => { - $( - impl Mark for $ty { - type Unmarked = Self; - fn mark(unmarked: Self::Unmarked) -> Self { - unmarked - } - } - impl Unmark for $ty { - type Unmarked = Self; - fn unmark(self) -> Self::Unmarked { - self - } - } - )* - } -} -mark_noop! { - (), - bool, - char, - &'_ [u8], - &'_ str, - String, - u8, - usize, - Delimiter, - Level, - LineColumn, - Spacing, -} - -rpc_encode_decode!( - enum Delimiter { - Parenthesis, - Brace, - Bracket, - None, - } -); -rpc_encode_decode!( - enum Level { - Error, - Warning, - Note, - Help, - } -); -rpc_encode_decode!(struct LineColumn { line, column }); -rpc_encode_decode!( - enum Spacing { - Alone, - Joint, - } -); - -macro_rules! mark_compound { - (struct $name:ident <$($T:ident),+> { $($field:ident),* $(,)? }) => { - impl<$($T: Mark),+> Mark for $name <$($T),+> { - type Unmarked = $name <$($T::Unmarked),+>; - fn mark(unmarked: Self::Unmarked) -> Self { - $name { - $($field: Mark::mark(unmarked.$field)),* - } - } - } - impl<$($T: Unmark),+> Unmark for $name <$($T),+> { - type Unmarked = $name <$($T::Unmarked),+>; - fn unmark(self) -> Self::Unmarked { - $name { - $($field: Unmark::unmark(self.$field)),* - } - } - } - }; - (enum $name:ident <$($T:ident),+> { $($variant:ident $(($field:ident))?),* $(,)? }) => { - impl<$($T: Mark),+> Mark for $name <$($T),+> { - type Unmarked = $name <$($T::Unmarked),+>; - fn mark(unmarked: Self::Unmarked) -> Self { - match unmarked { - $($name::$variant $(($field))? => { - $name::$variant $((Mark::mark($field)))? - })* - } - } - } - impl<$($T: Unmark),+> Unmark for $name <$($T),+> { - type Unmarked = $name <$($T::Unmarked),+>; - fn unmark(self) -> Self::Unmarked { - match self { - $($name::$variant $(($field))? => { - $name::$variant $((Unmark::unmark($field)))? - })* - } - } - } - } -} - -macro_rules! compound_traits { - ($($t:tt)*) => { - rpc_encode_decode!($($t)*); - mark_compound!($($t)*); - }; -} - -compound_traits!( - enum Bound<T> { - Included(x), - Excluded(x), - Unbounded, - } -); - -compound_traits!( - enum Option<T> { - Some(t), - None, - } -); - -compound_traits!( - enum Result<T, E> { - Ok(t), - Err(e), - } -); - -#[derive(Copy, Clone)] -pub struct DelimSpan<Span> { - pub open: Span, - pub close: Span, - pub entire: Span, -} - -impl<Span: Copy> DelimSpan<Span> { - pub fn from_single(span: Span) -> Self { - DelimSpan { open: span, close: span, entire: span } - } -} - -compound_traits!(struct DelimSpan<Span> { open, close, entire }); - -#[derive(Clone)] -pub struct Group<TokenStream, Span> { - pub delimiter: Delimiter, - pub stream: Option<TokenStream>, - pub span: DelimSpan<Span>, -} - -compound_traits!(struct Group<TokenStream, Span> { delimiter, stream, span }); - -#[derive(Clone)] -pub struct Punct<Span> { - pub ch: u8, - pub joint: bool, - pub span: Span, -} - -compound_traits!(struct Punct<Span> { ch, joint, span }); - -#[derive(Clone)] -pub enum TokenTree<TokenStream, Span, Ident, Literal> { - Group(Group<TokenStream, Span>), - Punct(Punct<Span>), - Ident(Ident), - Literal(Literal), -} - -compound_traits!( - enum TokenTree<TokenStream, Span, Ident, Literal> { - Group(tt), - Punct(tt), - Ident(tt), - Literal(tt), - } -); - -/// Globals provided alongside the initial inputs for a macro expansion. -/// Provides values such as spans which are used frequently to avoid RPC. -#[derive(Clone)] -pub struct ExpnGlobals<Span> { - pub def_site: Span, - pub call_site: Span, - pub mixed_site: Span, -} - -compound_traits!( - struct ExpnGlobals<Span> { def_site, call_site, mixed_site } -); diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/rpc.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/rpc.rs deleted file mode 100644 index e9d7a46c06..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/rpc.rs +++ /dev/null @@ -1,304 +0,0 @@ -//! Serialization for client-server communication. - -use std::any::Any; -use std::char; -use std::io::Write; -use std::num::NonZeroU32; -use std::str; - -pub(super) type Writer = super::buffer::Buffer; - -pub(super) trait Encode<S>: Sized { - fn encode(self, w: &mut Writer, s: &mut S); -} - -pub(super) type Reader<'a> = &'a [u8]; - -pub(super) trait Decode<'a, 's, S>: Sized { - fn decode(r: &mut Reader<'a>, s: &'s S) -> Self; -} - -pub(super) trait DecodeMut<'a, 's, S>: Sized { - fn decode(r: &mut Reader<'a>, s: &'s mut S) -> Self; -} - -macro_rules! rpc_encode_decode { - (le $ty:ty) => { - impl<S> Encode<S> for $ty { - fn encode(self, w: &mut Writer, _: &mut S) { - w.extend_from_array(&self.to_le_bytes()); - } - } - - impl<S> DecodeMut<'_, '_, S> for $ty { - fn decode(r: &mut Reader<'_>, _: &mut S) -> Self { - const N: usize = ::std::mem::size_of::<$ty>(); - - let mut bytes = [0; N]; - bytes.copy_from_slice(&r[..N]); - *r = &r[N..]; - - Self::from_le_bytes(bytes) - } - } - }; - (struct $name:ident $(<$($T:ident),+>)? { $($field:ident),* $(,)? }) => { - impl<S, $($($T: Encode<S>),+)?> Encode<S> for $name $(<$($T),+>)? { - fn encode(self, w: &mut Writer, s: &mut S) { - $(self.$field.encode(w, s);)* - } - } - - impl<'a, S, $($($T: for<'s> DecodeMut<'a, 's, S>),+)?> DecodeMut<'a, '_, S> - for $name $(<$($T),+>)? - { - fn decode(r: &mut Reader<'a>, s: &mut S) -> Self { - $name { - $($field: DecodeMut::decode(r, s)),* - } - } - } - }; - (enum $name:ident $(<$($T:ident),+>)? { $($variant:ident $(($field:ident))*),* $(,)? }) => { - impl<S, $($($T: Encode<S>),+)?> Encode<S> for $name $(<$($T),+>)? { - fn encode(self, w: &mut Writer, s: &mut S) { - // HACK(eddyb): `Tag` enum duplicated between the - // two impls as there's no other place to stash it. - #[allow(non_upper_case_globals)] - mod tag { - #[repr(u8)] enum Tag { $($variant),* } - - $(pub const $variant: u8 = Tag::$variant as u8;)* - } - - match self { - $($name::$variant $(($field))* => { - tag::$variant.encode(w, s); - $($field.encode(w, s);)* - })* - } - } - } - - impl<'a, S, $($($T: for<'s> DecodeMut<'a, 's, S>),+)?> DecodeMut<'a, '_, S> - for $name $(<$($T),+>)? - { - fn decode(r: &mut Reader<'a>, s: &mut S) -> Self { - // HACK(eddyb): `Tag` enum duplicated between the - // two impls as there's no other place to stash it. - #[allow(non_upper_case_globals)] - mod tag { - #[repr(u8)] enum Tag { $($variant),* } - - $(pub const $variant: u8 = Tag::$variant as u8;)* - } - - match u8::decode(r, s) { - $(tag::$variant => { - $(let $field = DecodeMut::decode(r, s);)* - $name::$variant $(($field))* - })* - _ => unreachable!(), - } - } - } - } -} - -impl<S> Encode<S> for () { - fn encode(self, _: &mut Writer, _: &mut S) {} -} - -impl<S> DecodeMut<'_, '_, S> for () { - fn decode(_: &mut Reader<'_>, _: &mut S) -> Self {} -} - -impl<S> Encode<S> for u8 { - fn encode(self, w: &mut Writer, _: &mut S) { - w.push(self); - } -} - -impl<S> DecodeMut<'_, '_, S> for u8 { - fn decode(r: &mut Reader<'_>, _: &mut S) -> Self { - let x = r[0]; - *r = &r[1..]; - x - } -} - -rpc_encode_decode!(le u32); -rpc_encode_decode!(le usize); - -impl<S> Encode<S> for bool { - fn encode(self, w: &mut Writer, s: &mut S) { - (self as u8).encode(w, s); - } -} - -impl<S> DecodeMut<'_, '_, S> for bool { - fn decode(r: &mut Reader<'_>, s: &mut S) -> Self { - match u8::decode(r, s) { - 0 => false, - 1 => true, - _ => unreachable!(), - } - } -} - -impl<S> Encode<S> for char { - fn encode(self, w: &mut Writer, s: &mut S) { - (self as u32).encode(w, s); - } -} - -impl<S> DecodeMut<'_, '_, S> for char { - fn decode(r: &mut Reader<'_>, s: &mut S) -> Self { - char::from_u32(u32::decode(r, s)).unwrap() - } -} - -impl<S> Encode<S> for NonZeroU32 { - fn encode(self, w: &mut Writer, s: &mut S) { - self.get().encode(w, s); - } -} - -impl<S> DecodeMut<'_, '_, S> for NonZeroU32 { - fn decode(r: &mut Reader<'_>, s: &mut S) -> Self { - Self::new(u32::decode(r, s)).unwrap() - } -} - -impl<S, A: Encode<S>, B: Encode<S>> Encode<S> for (A, B) { - fn encode(self, w: &mut Writer, s: &mut S) { - self.0.encode(w, s); - self.1.encode(w, s); - } -} - -impl<'a, S, A: for<'s> DecodeMut<'a, 's, S>, B: for<'s> DecodeMut<'a, 's, S>> DecodeMut<'a, '_, S> - for (A, B) -{ - fn decode(r: &mut Reader<'a>, s: &mut S) -> Self { - (DecodeMut::decode(r, s), DecodeMut::decode(r, s)) - } -} - -impl<S> Encode<S> for &[u8] { - fn encode(self, w: &mut Writer, s: &mut S) { - self.len().encode(w, s); - w.write_all(self).unwrap(); - } -} - -impl<'a, S> DecodeMut<'a, '_, S> for &'a [u8] { - fn decode(r: &mut Reader<'a>, s: &mut S) -> Self { - let len = usize::decode(r, s); - let xs = &r[..len]; - *r = &r[len..]; - xs - } -} - -impl<S> Encode<S> for &str { - fn encode(self, w: &mut Writer, s: &mut S) { - self.as_bytes().encode(w, s); - } -} - -impl<'a, S> DecodeMut<'a, '_, S> for &'a str { - fn decode(r: &mut Reader<'a>, s: &mut S) -> Self { - str::from_utf8(<&[u8]>::decode(r, s)).unwrap() - } -} - -impl<S> Encode<S> for String { - fn encode(self, w: &mut Writer, s: &mut S) { - self[..].encode(w, s); - } -} - -impl<S> DecodeMut<'_, '_, S> for String { - fn decode(r: &mut Reader<'_>, s: &mut S) -> Self { - <&str>::decode(r, s).to_string() - } -} - -impl<S, T: Encode<S>> Encode<S> for Vec<T> { - fn encode(self, w: &mut Writer, s: &mut S) { - self.len().encode(w, s); - for x in self { - x.encode(w, s); - } - } -} - -impl<'a, S, T: for<'s> DecodeMut<'a, 's, S>> DecodeMut<'a, '_, S> for Vec<T> { - fn decode(r: &mut Reader<'a>, s: &mut S) -> Self { - let len = usize::decode(r, s); - let mut vec = Vec::with_capacity(len); - for _ in 0..len { - vec.push(T::decode(r, s)); - } - vec - } -} - -/// Simplified version of panic payloads, ignoring -/// types other than `&'static str` and `String`. -pub enum PanicMessage { - StaticStr(&'static str), - String(String), - Unknown, -} - -impl From<Box<dyn Any + Send>> for PanicMessage { - fn from(payload: Box<dyn Any + Send + 'static>) -> Self { - if let Some(s) = payload.downcast_ref::<&'static str>() { - return PanicMessage::StaticStr(s); - } - if let Ok(s) = payload.downcast::<String>() { - return PanicMessage::String(*s); - } - PanicMessage::Unknown - } -} - -impl Into<Box<dyn Any + Send>> for PanicMessage { - fn into(self) -> Box<dyn Any + Send> { - match self { - PanicMessage::StaticStr(s) => Box::new(s), - PanicMessage::String(s) => Box::new(s), - PanicMessage::Unknown => { - struct UnknownPanicMessage; - Box::new(UnknownPanicMessage) - } - } - } -} - -impl PanicMessage { - pub fn as_str(&self) -> Option<&str> { - match self { - PanicMessage::StaticStr(s) => Some(s), - PanicMessage::String(s) => Some(s), - PanicMessage::Unknown => None, - } - } -} - -impl<S> Encode<S> for PanicMessage { - fn encode(self, w: &mut Writer, s: &mut S) { - self.as_str().encode(w, s); - } -} - -impl<S> DecodeMut<'_, '_, S> for PanicMessage { - fn decode(r: &mut Reader<'_>, s: &mut S) -> Self { - match Option::<String>::decode(r, s) { - Some(s) => PanicMessage::String(s), - None => PanicMessage::Unknown, - } - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/scoped_cell.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/scoped_cell.rs deleted file mode 100644 index 2cde1f65ad..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/scoped_cell.rs +++ /dev/null @@ -1,81 +0,0 @@ -//! `Cell` variant for (scoped) existential lifetimes. - -use std::cell::Cell; -use std::mem; -use std::ops::{Deref, DerefMut}; - -/// Type lambda application, with a lifetime. -#[allow(unused_lifetimes)] -pub trait ApplyL<'a> { - type Out; -} - -/// Type lambda taking a lifetime, i.e., `Lifetime -> Type`. -pub trait LambdaL: for<'a> ApplyL<'a> {} - -impl<T: for<'a> ApplyL<'a>> LambdaL for T {} - -// HACK(eddyb) work around projection limitations with a newtype -// FIXME(#52812) replace with `&'a mut <T as ApplyL<'b>>::Out` -pub struct RefMutL<'a, 'b, T: LambdaL>(&'a mut <T as ApplyL<'b>>::Out); - -impl<'a, 'b, T: LambdaL> Deref for RefMutL<'a, 'b, T> { - type Target = <T as ApplyL<'b>>::Out; - fn deref(&self) -> &Self::Target { - self.0 - } -} - -impl<'a, 'b, T: LambdaL> DerefMut for RefMutL<'a, 'b, T> { - fn deref_mut(&mut self) -> &mut Self::Target { - self.0 - } -} - -pub struct ScopedCell<T: LambdaL>(Cell<<T as ApplyL<'static>>::Out>); - -impl<T: LambdaL> ScopedCell<T> { - pub const fn new(value: <T as ApplyL<'static>>::Out) -> Self { - ScopedCell(Cell::new(value)) - } - - /// Sets the value in `self` to `replacement` while - /// running `f`, which gets the old value, mutably. - /// The old value will be restored after `f` exits, even - /// by panic, including modifications made to it by `f`. - pub fn replace<'a, R>( - &self, - replacement: <T as ApplyL<'a>>::Out, - f: impl for<'b, 'c> FnOnce(RefMutL<'b, 'c, T>) -> R, - ) -> R { - /// Wrapper that ensures that the cell always gets filled - /// (with the original state, optionally changed by `f`), - /// even if `f` had panicked. - struct PutBackOnDrop<'a, T: LambdaL> { - cell: &'a ScopedCell<T>, - value: Option<<T as ApplyL<'static>>::Out>, - } - - impl<'a, T: LambdaL> Drop for PutBackOnDrop<'a, T> { - fn drop(&mut self) { - self.cell.0.set(self.value.take().unwrap()); - } - } - - let mut put_back_on_drop = PutBackOnDrop { - cell: self, - value: Some(self.0.replace(unsafe { - let erased = mem::transmute_copy(&replacement); - mem::forget(replacement); - erased - })), - }; - - f(RefMutL(put_back_on_drop.value.as_mut().unwrap())) - } - - /// Sets the value in `self` to `value` while running `f`. - pub fn set<R>(&self, value: <T as ApplyL<'_>>::Out, f: impl FnOnce() -> R) -> R { - self.replace(value, |_| f()) - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/selfless_reify.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/selfless_reify.rs deleted file mode 100644 index 907ad256e4..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/selfless_reify.rs +++ /dev/null @@ -1,84 +0,0 @@ -//! Abstraction for creating `fn` pointers from any callable that *effectively* -//! has the equivalent of implementing `Default`, even if the compiler neither -//! provides `Default` nor allows reifying closures (i.e. creating `fn` pointers) -//! other than those with absolutely no captures. -//! -//! More specifically, for a closure-like type to be "effectively `Default`": -//! * it must be a ZST (zero-sized type): no information contained within, so -//! that `Default`'s return value (if it were implemented) is unambiguous -//! * it must be `Copy`: no captured "unique ZST tokens" or any other similar -//! types that would make duplicating values at will unsound -//! * combined with the ZST requirement, this confers a kind of "telecopy" -//! ability: similar to `Copy`, but without keeping the value around, and -//! instead "reconstructing" it (a noop given it's a ZST) when needed -//! * it must be *provably* inhabited: no captured uninhabited types or any -//! other types that cannot be constructed by the user of this abstraction -//! * the proof is a value of the closure-like type itself, in a sense the -//! "seed" for the "telecopy" process made possible by ZST + `Copy` -//! * this requirement is the only reason an abstraction limited to a specific -//! usecase is required: ZST + `Copy` can be checked with *at worst* a panic -//! at the "attempted `::default()` call" time, but that doesn't guarantee -//! that the value can be soundly created, and attempting to use the typical -//! "proof ZST token" approach leads yet again to having a ZST + `Copy` type -//! that is not proof of anything without a value (i.e. isomorphic to a -//! newtype of the type it's trying to prove the inhabitation of) -//! -//! A more flexible (and safer) solution to the general problem could exist once -//! `const`-generic parameters can have type parameters in their types: -//! -//! ```rust,ignore (needs future const-generics) -//! extern "C" fn ffi_wrapper< -//! A, R, -//! F: Fn(A) -> R, -//! const f: F, // <-- this `const`-generic is not yet allowed -//! >(arg: A) -> R { -//! f(arg) -//! } -//! ``` - -use std::mem; - -// FIXME(eddyb) this could be `trait` impls except for the `const fn` requirement. -macro_rules! define_reify_functions { - ($( - fn $name:ident $(<$($param:ident),*>)? - for $(extern $abi:tt)? fn($($arg:ident: $arg_ty:ty),*) -> $ret_ty:ty; - )+) => { - $(pub const fn $name< - $($($param,)*)? - F: Fn($($arg_ty),*) -> $ret_ty + Copy - >(f: F) -> $(extern $abi)? fn($($arg_ty),*) -> $ret_ty { - // FIXME(eddyb) describe the `F` type (e.g. via `type_name::<F>`) once panic - // formatting becomes possible in `const fn`. - assert!(mem::size_of::<F>() == 0, "selfless_reify: closure must be zero-sized"); - - $(extern $abi)? fn wrapper< - $($($param,)*)? - F: Fn($($arg_ty),*) -> $ret_ty + Copy - >($($arg: $arg_ty),*) -> $ret_ty { - let f = unsafe { - // SAFETY: `F` satisfies all criteria for "out of thin air" - // reconstructability (see module-level doc comment). - mem::MaybeUninit::<F>::uninit().assume_init() - }; - f($($arg),*) - } - let _f_proof = f; - wrapper::< - $($($param,)*)? - F - > - })+ - } -} - -define_reify_functions! { - fn _reify_to_extern_c_fn_unary<A, R> for extern "C" fn(arg: A) -> R; - - // HACK(eddyb) this abstraction is used with `for<'a> fn(BridgeConfig<'a>) - // -> T` but that doesn't work with just `reify_to_extern_c_fn_unary` - // because of the `fn` pointer type being "higher-ranked" (i.e. the - // `for<'a>` binder). - // FIXME(eddyb) try to remove the lifetime from `BridgeConfig`, that'd help. - fn reify_to_extern_c_fn_hrt_bridge<R> for extern "C" fn(bridge: super::BridgeConfig<'_>) -> R; -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/server.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/server.rs deleted file mode 100644 index 6e7a8d8c10..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/bridge/server.rs +++ /dev/null @@ -1,339 +0,0 @@ -//! Server-side traits. - -use super::*; - -// FIXME(eddyb) generate the definition of `HandleStore` in `server.rs`. -use super::client::HandleStore; - -pub trait Types { - type FreeFunctions: 'static; - type TokenStream: 'static + Clone; - type Ident: 'static + Copy + Eq + Hash; - type Literal: 'static + Clone; - type SourceFile: 'static + Clone; - type MultiSpan: 'static; - type Diagnostic: 'static; - type Span: 'static + Copy + Eq + Hash; -} - -/// Declare an associated fn of one of the traits below, adding necessary -/// default bodies. -macro_rules! associated_fn { - (fn drop(&mut self, $arg:ident: $arg_ty:ty)) => - (fn drop(&mut self, $arg: $arg_ty) { mem::drop($arg) }); - - (fn clone(&mut self, $arg:ident: $arg_ty:ty) -> $ret_ty:ty) => - (fn clone(&mut self, $arg: $arg_ty) -> $ret_ty { $arg.clone() }); - - ($($item:tt)*) => ($($item)*;) -} - -macro_rules! declare_server_traits { - ($($name:ident { - $(fn $method:ident($($arg:ident: $arg_ty:ty),* $(,)?) $(-> $ret_ty:ty)?;)* - }),* $(,)?) => { - $(pub trait $name: Types { - $(associated_fn!(fn $method(&mut self, $($arg: $arg_ty),*) $(-> $ret_ty)?);)* - })* - - pub trait Server: Types $(+ $name)* { - fn globals(&mut self) -> ExpnGlobals<Self::Span>; - } - } -} -with_api!(Self, self_, declare_server_traits); - -pub(super) struct MarkedTypes<S: Types>(S); - -impl<S: Server> Server for MarkedTypes<S> { - fn globals(&mut self) -> ExpnGlobals<Self::Span> { - <_>::mark(Server::globals(&mut self.0)) - } -} - -macro_rules! define_mark_types_impls { - ($($name:ident { - $(fn $method:ident($($arg:ident: $arg_ty:ty),* $(,)?) $(-> $ret_ty:ty)?;)* - }),* $(,)?) => { - impl<S: Types> Types for MarkedTypes<S> { - $(type $name = Marked<S::$name, client::$name>;)* - } - - $(impl<S: $name> $name for MarkedTypes<S> { - $(fn $method(&mut self, $($arg: $arg_ty),*) $(-> $ret_ty)? { - <_>::mark($name::$method(&mut self.0, $($arg.unmark()),*)) - })* - })* - } -} -with_api!(Self, self_, define_mark_types_impls); - -struct Dispatcher<S: Types> { - handle_store: HandleStore<S>, - server: S, -} - -macro_rules! define_dispatcher_impl { - ($($name:ident { - $(fn $method:ident($($arg:ident: $arg_ty:ty),* $(,)?) $(-> $ret_ty:ty)?;)* - }),* $(,)?) => { - // FIXME(eddyb) `pub` only for `ExecutionStrategy` below. - pub trait DispatcherTrait { - // HACK(eddyb) these are here to allow `Self::$name` to work below. - $(type $name;)* - fn dispatch(&mut self, buf: Buffer) -> Buffer; - } - - impl<S: Server> DispatcherTrait for Dispatcher<MarkedTypes<S>> { - $(type $name = <MarkedTypes<S> as Types>::$name;)* - fn dispatch(&mut self, mut buf: Buffer) -> Buffer { - let Dispatcher { handle_store, server } = self; - - let mut reader = &buf[..]; - match api_tags::Method::decode(&mut reader, &mut ()) { - $(api_tags::Method::$name(m) => match m { - $(api_tags::$name::$method => { - let mut call_method = || { - reverse_decode!(reader, handle_store; $($arg: $arg_ty),*); - $name::$method(server, $($arg),*) - }; - // HACK(eddyb) don't use `panic::catch_unwind` in a panic. - // If client and server happen to use the same `libstd`, - // `catch_unwind` asserts that the panic counter was 0, - // even when the closure passed to it didn't panic. - let r = if thread::panicking() { - Ok(call_method()) - } else { - panic::catch_unwind(panic::AssertUnwindSafe(call_method)) - .map_err(PanicMessage::from) - }; - - buf.clear(); - r.encode(&mut buf, handle_store); - })* - }),* - } - buf - } - } - } -} -with_api!(Self, self_, define_dispatcher_impl); - -pub trait ExecutionStrategy { - fn run_bridge_and_client( - &self, - dispatcher: &mut impl DispatcherTrait, - input: Buffer, - run_client: extern "C" fn(BridgeConfig<'_>) -> Buffer, - force_show_panics: bool, - ) -> Buffer; -} - -pub struct SameThread; - -impl ExecutionStrategy for SameThread { - fn run_bridge_and_client( - &self, - dispatcher: &mut impl DispatcherTrait, - input: Buffer, - run_client: extern "C" fn(BridgeConfig<'_>) -> Buffer, - force_show_panics: bool, - ) -> Buffer { - let mut dispatch = |buf| dispatcher.dispatch(buf); - - run_client(BridgeConfig { - input, - dispatch: (&mut dispatch).into(), - force_show_panics, - _marker: marker::PhantomData, - }) - } -} - -// NOTE(eddyb) Two implementations are provided, the second one is a bit -// faster but neither is anywhere near as fast as same-thread execution. - -pub struct CrossThread1; - -impl ExecutionStrategy for CrossThread1 { - fn run_bridge_and_client( - &self, - dispatcher: &mut impl DispatcherTrait, - input: Buffer, - run_client: extern "C" fn(BridgeConfig<'_>) -> Buffer, - force_show_panics: bool, - ) -> Buffer { - use std::sync::mpsc::channel; - - let (req_tx, req_rx) = channel(); - let (res_tx, res_rx) = channel(); - - let join_handle = thread::spawn(move || { - let mut dispatch = |buf| { - req_tx.send(buf).unwrap(); - res_rx.recv().unwrap() - }; - - run_client(BridgeConfig { - input, - dispatch: (&mut dispatch).into(), - force_show_panics, - _marker: marker::PhantomData, - }) - }); - - for b in req_rx { - res_tx.send(dispatcher.dispatch(b)).unwrap(); - } - - join_handle.join().unwrap() - } -} - -pub struct CrossThread2; - -impl ExecutionStrategy for CrossThread2 { - fn run_bridge_and_client( - &self, - dispatcher: &mut impl DispatcherTrait, - input: Buffer, - run_client: extern "C" fn(BridgeConfig<'_>) -> Buffer, - force_show_panics: bool, - ) -> Buffer { - use std::sync::{Arc, Mutex}; - - enum State<T> { - Req(T), - Res(T), - } - - let mut state = Arc::new(Mutex::new(State::Res(Buffer::new()))); - - let server_thread = thread::current(); - let state2 = state.clone(); - let join_handle = thread::spawn(move || { - let mut dispatch = |b| { - *state2.lock().unwrap() = State::Req(b); - server_thread.unpark(); - loop { - thread::park(); - if let State::Res(b) = &mut *state2.lock().unwrap() { - break b.take(); - } - } - }; - - let r = run_client(BridgeConfig { - input, - dispatch: (&mut dispatch).into(), - force_show_panics, - _marker: marker::PhantomData, - }); - - // Wake up the server so it can exit the dispatch loop. - drop(state2); - server_thread.unpark(); - - r - }); - - // Check whether `state2` was dropped, to know when to stop. - while Arc::get_mut(&mut state).is_none() { - thread::park(); - let mut b = match &mut *state.lock().unwrap() { - State::Req(b) => b.take(), - _ => continue, - }; - b = dispatcher.dispatch(b.take()); - *state.lock().unwrap() = State::Res(b); - join_handle.thread().unpark(); - } - - join_handle.join().unwrap() - } -} - -fn run_server< - S: Server, - I: Encode<HandleStore<MarkedTypes<S>>>, - O: for<'a, 's> DecodeMut<'a, 's, HandleStore<MarkedTypes<S>>>, ->( - strategy: &impl ExecutionStrategy, - handle_counters: &'static client::HandleCounters, - server: S, - input: I, - run_client: extern "C" fn(BridgeConfig<'_>) -> Buffer, - force_show_panics: bool, -) -> Result<O, PanicMessage> { - let mut dispatcher = - Dispatcher { handle_store: HandleStore::new(handle_counters), server: MarkedTypes(server) }; - - let globals = dispatcher.server.globals(); - - let mut buf = Buffer::new(); - (globals, input).encode(&mut buf, &mut dispatcher.handle_store); - - buf = strategy.run_bridge_and_client(&mut dispatcher, buf, run_client, force_show_panics); - - Result::decode(&mut &buf[..], &mut dispatcher.handle_store) -} - -impl client::Client<super::super::TokenStream, super::super::TokenStream> { - pub fn run<S>( - &self, - strategy: &impl ExecutionStrategy, - server: S, - input: S::TokenStream, - force_show_panics: bool, - ) -> Result<S::TokenStream, PanicMessage> - where - S: Server, - S::TokenStream: Default, - { - let client::Client { get_handle_counters, run, _marker } = *self; - run_server( - strategy, - get_handle_counters(), - server, - <MarkedTypes<S> as Types>::TokenStream::mark(input), - run, - force_show_panics, - ) - .map(|s| <Option<<MarkedTypes<S> as Types>::TokenStream>>::unmark(s).unwrap_or_default()) - } -} - -impl - client::Client< - (super::super::TokenStream, super::super::TokenStream), - super::super::TokenStream, - > -{ - pub fn run<S>( - &self, - strategy: &impl ExecutionStrategy, - server: S, - input: S::TokenStream, - input2: S::TokenStream, - force_show_panics: bool, - ) -> Result<S::TokenStream, PanicMessage> - where - S: Server, - S::TokenStream: Default, - { - let client::Client { get_handle_counters, run, _marker } = *self; - run_server( - strategy, - get_handle_counters(), - server, - ( - <MarkedTypes<S> as Types>::TokenStream::mark(input), - <MarkedTypes<S> as Types>::TokenStream::mark(input2), - ), - run, - force_show_panics, - ) - .map(|s| <Option<<MarkedTypes<S> as Types>::TokenStream>>::unmark(s).unwrap_or_default()) - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs deleted file mode 100644 index 3fade2dc4f..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/diagnostic.rs +++ /dev/null @@ -1,166 +0,0 @@ -//! lib-proc-macro diagnostic -//! -//! Copy from <https://github.com/rust-lang/rust/blob/e45d9973b2665897a768312e971b82cc62633103/src/libproc_macro/diagnostic.rs> -//! augmented with removing unstable features - -use super::Span; - -/// An enum representing a diagnostic level. -#[derive(Copy, Clone, Debug)] -#[non_exhaustive] -pub enum Level { - /// An error. - Error, - /// A warning. - Warning, - /// A note. - Note, - /// A help message. - Help, -} - -/// Trait implemented by types that can be converted into a set of `Span`s. -pub trait MultiSpan { - /// Converts `self` into a `Vec<Span>`. - fn into_spans(self) -> Vec<Span>; -} - -impl MultiSpan for Span { - fn into_spans(self) -> Vec<Span> { - vec![self] - } -} - -impl MultiSpan for Vec<Span> { - fn into_spans(self) -> Vec<Span> { - self - } -} - -impl<'a> MultiSpan for &'a [Span] { - fn into_spans(self) -> Vec<Span> { - self.to_vec() - } -} - -/// A structure representing a diagnostic message and associated children -/// messages. -#[derive(Clone, Debug)] -pub struct Diagnostic { - level: Level, - message: String, - spans: Vec<Span>, - children: Vec<Diagnostic>, -} - -macro_rules! diagnostic_child_methods { - ($spanned:ident, $regular:ident, $level:expr) => { - #[doc = concat!("Adds a new child diagnostics message to `self` with the [`", - stringify!($level), "`] level, and the given `spans` and `message`.")] - pub fn $spanned<S, T>(mut self, spans: S, message: T) -> Diagnostic - where - S: MultiSpan, - T: Into<String>, - { - self.children.push(Diagnostic::spanned(spans, $level, message)); - self - } - - #[doc = concat!("Adds a new child diagnostic message to `self` with the [`", - stringify!($level), "`] level, and the given `message`.")] - pub fn $regular<T: Into<String>>(mut self, message: T) -> Diagnostic { - self.children.push(Diagnostic::new($level, message)); - self - } - }; -} - -/// Iterator over the children diagnostics of a `Diagnostic`. -#[derive(Debug, Clone)] -pub struct Children<'a>(std::slice::Iter<'a, Diagnostic>); - -impl<'a> Iterator for Children<'a> { - type Item = &'a Diagnostic; - - fn next(&mut self) -> Option<Self::Item> { - self.0.next() - } -} - -impl Diagnostic { - /// Creates a new diagnostic with the given `level` and `message`. - pub fn new<T: Into<String>>(level: Level, message: T) -> Diagnostic { - Diagnostic { level, message: message.into(), spans: vec![], children: vec![] } - } - - /// Creates a new diagnostic with the given `level` and `message` pointing to - /// the given set of `spans`. - pub fn spanned<S, T>(spans: S, level: Level, message: T) -> Diagnostic - where - S: MultiSpan, - T: Into<String>, - { - Diagnostic { level, message: message.into(), spans: spans.into_spans(), children: vec![] } - } - - diagnostic_child_methods!(span_error, error, Level::Error); - diagnostic_child_methods!(span_warning, warning, Level::Warning); - diagnostic_child_methods!(span_note, note, Level::Note); - diagnostic_child_methods!(span_help, help, Level::Help); - - /// Returns the diagnostic `level` for `self`. - pub fn level(&self) -> Level { - self.level - } - - /// Sets the level in `self` to `level`. - pub fn set_level(&mut self, level: Level) { - self.level = level; - } - - /// Returns the message in `self`. - pub fn message(&self) -> &str { - &self.message - } - - /// Sets the message in `self` to `message`. - pub fn set_message<T: Into<String>>(&mut self, message: T) { - self.message = message.into(); - } - - /// Returns the `Span`s in `self`. - pub fn spans(&self) -> &[Span] { - &self.spans - } - - /// Sets the `Span`s in `self` to `spans`. - pub fn set_spans<S: MultiSpan>(&mut self, spans: S) { - self.spans = spans.into_spans(); - } - - /// Returns an iterator over the children diagnostics of `self`. - pub fn children(&self) -> Children<'_> { - Children(self.children.iter()) - } - - /// Emit the diagnostic. - pub fn emit(self) { - fn to_internal(spans: Vec<Span>) -> super::bridge::client::MultiSpan { - let mut multi_span = super::bridge::client::MultiSpan::new(); - for span in spans { - multi_span.push(span.0); - } - multi_span - } - - let mut diag = super::bridge::client::Diagnostic::new( - self.level, - &self.message[..], - to_internal(self.spans), - ); - for c in self.children { - diag.sub(c.level, &c.message[..], to_internal(c.spans)); - } - diag.emit(); - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/mod.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/mod.rs deleted file mode 100644 index be62c73ef3..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/mod.rs +++ /dev/null @@ -1,1125 +0,0 @@ -//! A support library for macro authors when defining new macros. -//! -//! This library, provided by the standard distribution, provides the types -//! consumed in the interfaces of procedurally defined macro definitions such as -//! function-like macros `#[proc_macro]`, macro attributes `#[proc_macro_attribute]` and -//! custom derive attributes`#[proc_macro_derive]`. -//! -//! See [the book] for more. -//! -//! [the book]: ../book/ch19-06-macros.html#procedural-macros-for-generating-code-from-attributes - -#[doc(hidden)] -pub mod bridge; - -mod diagnostic; - -pub use diagnostic::{Diagnostic, Level, MultiSpan}; - -use std::cmp::Ordering; -use std::ops::RangeBounds; -use std::path::PathBuf; -use std::str::FromStr; -use std::{error, fmt, iter, mem}; - -/// Determines whether proc_macro has been made accessible to the currently -/// running program. -/// -/// The proc_macro crate is only intended for use inside the implementation of -/// procedural macros. All the functions in this crate panic if invoked from -/// outside of a procedural macro, such as from a build script or unit test or -/// ordinary Rust binary. -/// -/// With consideration for Rust libraries that are designed to support both -/// macro and non-macro use cases, `proc_macro::is_available()` provides a -/// non-panicking way to detect whether the infrastructure required to use the -/// API of proc_macro is presently available. Returns true if invoked from -/// inside of a procedural macro, false if invoked from any other binary. -pub fn is_available() -> bool { - bridge::client::is_available() -} - -/// The main type provided by this crate, representing an abstract stream of -/// tokens, or, more specifically, a sequence of token trees. -/// The type provide interfaces for iterating over those token trees and, conversely, -/// collecting a number of token trees into one stream. -/// -/// This is both the input and output of `#[proc_macro]`, `#[proc_macro_attribute]` -/// and `#[proc_macro_derive]` definitions. -#[derive(Clone)] -pub struct TokenStream(Option<bridge::client::TokenStream>); - -/// Error returned from `TokenStream::from_str`. -#[non_exhaustive] -#[derive(Debug)] -pub struct LexError; - -impl fmt::Display for LexError { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str("cannot parse string into token stream") - } -} - -impl error::Error for LexError {} - -/// Error returned from `TokenStream::expand_expr`. -#[non_exhaustive] -#[derive(Debug)] -pub struct ExpandError; - -impl fmt::Display for ExpandError { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str("macro expansion failed") - } -} - -impl error::Error for ExpandError {} - -impl TokenStream { - /// Returns an empty `TokenStream` containing no token trees. - pub fn new() -> TokenStream { - TokenStream(None) - } - - /// Checks if this `TokenStream` is empty. - pub fn is_empty(&self) -> bool { - self.0.as_ref().map(|h| h.is_empty()).unwrap_or(true) - } - - /// Parses this `TokenStream` as an expression and attempts to expand any - /// macros within it. Returns the expanded `TokenStream`. - /// - /// Currently only expressions expanding to literals will succeed, although - /// this may be relaxed in the future. - /// - /// NOTE: In error conditions, `expand_expr` may leave macros unexpanded, - /// report an error, failing compilation, and/or return an `Err(..)`. The - /// specific behavior for any error condition, and what conditions are - /// considered errors, is unspecified and may change in the future. - pub fn expand_expr(&self) -> Result<TokenStream, ExpandError> { - let stream = self.0.as_ref().ok_or(ExpandError)?; - match bridge::client::TokenStream::expand_expr(stream) { - Ok(stream) => Ok(TokenStream(Some(stream))), - Err(_) => Err(ExpandError), - } - } -} - -/// Attempts to break the string into tokens and parse those tokens into a token stream. -/// May fail for a number of reasons, for example, if the string contains unbalanced delimiters -/// or characters not existing in the language. -/// All tokens in the parsed stream get `Span::call_site()` spans. -/// -/// NOTE: some errors may cause panics instead of returning `LexError`. We reserve the right to -/// change these errors into `LexError`s later. -impl FromStr for TokenStream { - type Err = LexError; - - fn from_str(src: &str) -> Result<TokenStream, LexError> { - Ok(TokenStream(Some(bridge::client::TokenStream::from_str(src)))) - } -} - -/// Prints the token stream as a string that is supposed to be losslessly convertible back -/// into the same token stream (modulo spans), except for possibly `TokenTree::Group`s -/// with `Delimiter::None` delimiters and negative numeric literals. -impl fmt::Display for TokenStream { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(&self.to_string()) - } -} - -/// Prints token in a form convenient for debugging. -impl fmt::Debug for TokenStream { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str("TokenStream ")?; - f.debug_list().entries(self.clone()).finish() - } -} - -impl Default for TokenStream { - fn default() -> Self { - TokenStream::new() - } -} - -pub use quote::{quote, quote_span}; - -fn tree_to_bridge_tree( - tree: TokenTree, -) -> bridge::TokenTree< - bridge::client::TokenStream, - bridge::client::Span, - bridge::client::Ident, - bridge::client::Literal, -> { - match tree { - TokenTree::Group(tt) => bridge::TokenTree::Group(tt.0), - TokenTree::Punct(tt) => bridge::TokenTree::Punct(tt.0), - TokenTree::Ident(tt) => bridge::TokenTree::Ident(tt.0), - TokenTree::Literal(tt) => bridge::TokenTree::Literal(tt.0), - } -} - -/// Creates a token stream containing a single token tree. -impl From<TokenTree> for TokenStream { - fn from(tree: TokenTree) -> TokenStream { - TokenStream(Some(bridge::client::TokenStream::from_token_tree(tree_to_bridge_tree(tree)))) - } -} - -/// Non-generic helper for implementing `FromIterator<TokenStream>` and -/// `Extend<TokenStream>` with less monomorphization in calling crates. -struct ConcatStreamsHelper { - streams: Vec<bridge::client::TokenStream>, -} - -impl ConcatStreamsHelper { - fn new(capacity: usize) -> Self { - ConcatStreamsHelper { streams: Vec::with_capacity(capacity) } - } - - fn push(&mut self, stream: TokenStream) { - if let Some(stream) = stream.0 { - self.streams.push(stream); - } - } - - fn build(mut self) -> TokenStream { - if self.streams.len() <= 1 { - TokenStream(self.streams.pop()) - } else { - TokenStream(Some(bridge::client::TokenStream::concat_streams(None, self.streams))) - } - } - - fn append_to(mut self, stream: &mut TokenStream) { - if self.streams.is_empty() { - return; - } - let base = stream.0.take(); - if base.is_none() && self.streams.len() == 1 { - stream.0 = self.streams.pop(); - } else { - stream.0 = Some(bridge::client::TokenStream::concat_streams(base, self.streams)); - } - } -} - -/// Collects a number of token trees into a single stream. -impl iter::FromIterator<TokenTree> for TokenStream { - fn from_iter<I: IntoIterator<Item = TokenTree>>(trees: I) -> Self { - trees.into_iter().map(TokenStream::from).collect() - } -} - -/// A "flattening" operation on token streams, collects token trees -/// from multiple token streams into a single stream. -impl iter::FromIterator<TokenStream> for TokenStream { - fn from_iter<I: IntoIterator<Item = TokenStream>>(streams: I) -> Self { - let iter = streams.into_iter(); - let mut builder = ConcatStreamsHelper::new(iter.size_hint().0); - iter.for_each(|stream| builder.push(stream)); - builder.build() - } -} - -impl Extend<TokenTree> for TokenStream { - fn extend<I: IntoIterator<Item = TokenTree>>(&mut self, trees: I) { - self.extend(trees.into_iter().map(TokenStream::from)); - } -} - -impl Extend<TokenStream> for TokenStream { - fn extend<I: IntoIterator<Item = TokenStream>>(&mut self, streams: I) { - // FIXME(eddyb) Use an optimized implementation if/when possible. - *self = iter::once(mem::replace(self, Self::new())).chain(streams).collect(); - } -} - -/// Public implementation details for the `TokenStream` type, such as iterators. -pub mod token_stream { - use super::{bridge, Group, Ident, Literal, Punct, TokenStream, TokenTree}; - - /// An iterator over `TokenStream`'s `TokenTree`s. - /// The iteration is "shallow", e.g., the iterator doesn't recurse into delimited groups, - /// and returns whole groups as token trees. - #[derive(Clone)] - pub struct IntoIter( - std::vec::IntoIter< - bridge::TokenTree< - bridge::client::TokenStream, - bridge::client::Span, - bridge::client::Ident, - bridge::client::Literal, - >, - >, - ); - - impl Iterator for IntoIter { - type Item = TokenTree; - - fn next(&mut self) -> Option<TokenTree> { - self.0.next().map(|tree| match tree { - bridge::TokenTree::Group(tt) => TokenTree::Group(Group(tt)), - bridge::TokenTree::Punct(tt) => TokenTree::Punct(Punct(tt)), - bridge::TokenTree::Ident(tt) => TokenTree::Ident(Ident(tt)), - bridge::TokenTree::Literal(tt) => TokenTree::Literal(Literal(tt)), - }) - } - } - - impl IntoIterator for TokenStream { - type Item = TokenTree; - type IntoIter = IntoIter; - - fn into_iter(self) -> IntoIter { - IntoIter(self.0.map(|v| v.into_trees()).unwrap_or_default().into_iter()) - } - } -} - -#[doc(hidden)] -mod quote; - -/// A region of source code, along with macro expansion information. -#[derive(Copy, Clone)] -pub struct Span(bridge::client::Span); - -macro_rules! diagnostic_method { - ($name:ident, $level:expr) => { - /// Creates a new `Diagnostic` with the given `message` at the span - /// `self`. - pub fn $name<T: Into<String>>(self, message: T) -> Diagnostic { - Diagnostic::spanned(self, $level, message) - } - }; -} - -impl Span { - /// A span that resolves at the macro definition site. - pub fn def_site() -> Span { - Span(bridge::client::Span::def_site()) - } - - /// The span of the invocation of the current procedural macro. - /// Identifiers created with this span will be resolved as if they were written - /// directly at the macro call location (call-site hygiene) and other code - /// at the macro call site will be able to refer to them as well. - pub fn call_site() -> Span { - Span(bridge::client::Span::call_site()) - } - - /// A span that represents `macro_rules` hygiene, and sometimes resolves at the macro - /// definition site (local variables, labels, `$crate`) and sometimes at the macro - /// call site (everything else). - /// The span location is taken from the call-site. - pub fn mixed_site() -> Span { - Span(bridge::client::Span::mixed_site()) - } - - /// The original source file into which this span points. - pub fn source_file(&self) -> SourceFile { - SourceFile(self.0.source_file()) - } - - /// The `Span` for the tokens in the previous macro expansion from which - /// `self` was generated from, if any. - pub fn parent(&self) -> Option<Span> { - self.0.parent().map(Span) - } - - /// The span for the origin source code that `self` was generated from. If - /// this `Span` wasn't generated from other macro expansions then the return - /// value is the same as `*self`. - pub fn source(&self) -> Span { - Span(self.0.source()) - } - - /// Gets the starting line/column in the source file for this span. - pub fn start(&self) -> LineColumn { - self.0.start().add_1_to_column() - } - - /// Gets the ending line/column in the source file for this span. - pub fn end(&self) -> LineColumn { - self.0.end().add_1_to_column() - } - - /// Creates an empty span pointing to directly before this span. - pub fn before(&self) -> Span { - Span(self.0.before()) - } - - /// Creates an empty span pointing to directly after this span. - pub fn after(&self) -> Span { - Span(self.0.after()) - } - - /// Creates a new span encompassing `self` and `other`. - /// - /// Returns `None` if `self` and `other` are from different files. - pub fn join(&self, other: Span) -> Option<Span> { - self.0.join(other.0).map(Span) - } - - /// Creates a new span with the same line/column information as `self` but - /// that resolves symbols as though it were at `other`. - pub fn resolved_at(&self, other: Span) -> Span { - Span(self.0.resolved_at(other.0)) - } - - /// Creates a new span with the same name resolution behavior as `self` but - /// with the line/column information of `other`. - pub fn located_at(&self, other: Span) -> Span { - other.resolved_at(*self) - } - - /// Compares to spans to see if they're equal. - pub fn eq(&self, other: &Span) -> bool { - self.0 == other.0 - } - - /// Returns the source text behind a span. This preserves the original source - /// code, including spaces and comments. It only returns a result if the span - /// corresponds to real source code. - /// - /// Note: The observable result of a macro should only rely on the tokens and - /// not on this source text. The result of this function is a best effort to - /// be used for diagnostics only. - pub fn source_text(&self) -> Option<String> { - self.0.source_text() - } - - // Used by the implementation of `Span::quote` - #[doc(hidden)] - pub fn save_span(&self) -> usize { - self.0.save_span() - } - - // Used by the implementation of `Span::quote` - #[doc(hidden)] - pub fn recover_proc_macro_span(id: usize) -> Span { - Span(bridge::client::Span::recover_proc_macro_span(id)) - } - - diagnostic_method!(error, Level::Error); - diagnostic_method!(warning, Level::Warning); - diagnostic_method!(note, Level::Note); - diagnostic_method!(help, Level::Help); -} - -/// Prints a span in a form convenient for debugging. -impl fmt::Debug for Span { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - self.0.fmt(f) - } -} - -/// A line-column pair representing the start or end of a `Span`. -#[derive(Copy, Clone, Debug, PartialEq, Eq)] -pub struct LineColumn { - /// The 1-indexed line in the source file on which the span starts or ends (inclusive). - pub line: usize, - /// The 1-indexed column (number of bytes in UTF-8 encoding) in the source - /// file on which the span starts or ends (inclusive). - pub column: usize, -} - -impl LineColumn { - fn add_1_to_column(self) -> Self { - LineColumn { line: self.line, column: self.column + 1 } - } -} - -impl Ord for LineColumn { - fn cmp(&self, other: &Self) -> Ordering { - self.line.cmp(&other.line).then(self.column.cmp(&other.column)) - } -} - -impl PartialOrd for LineColumn { - fn partial_cmp(&self, other: &Self) -> Option<Ordering> { - Some(self.cmp(other)) - } -} - -/// The source file of a given `Span`. -#[derive(Clone)] -pub struct SourceFile(bridge::client::SourceFile); - -impl SourceFile { - /// Gets the path to this source file. - /// - /// ### Note - /// If the code span associated with this `SourceFile` was generated by an external macro, this - /// macro, this might not be an actual path on the filesystem. Use [`is_real`] to check. - /// - /// Also note that even if `is_real` returns `true`, if `--remap-path-prefix` was passed on - /// the command line, the path as given might not actually be valid. - /// - /// [`is_real`]: Self::is_real - pub fn path(&self) -> PathBuf { - PathBuf::from(self.0.path()) - } - - /// Returns `true` if this source file is a real source file, and not generated by an external - /// macro's expansion. - pub fn is_real(&self) -> bool { - // This is a hack until intercrate spans are implemented and we can have real source files - // for spans generated in external macros. - // https://github.com/rust-lang/rust/pull/43604#issuecomment-333334368 - self.0.is_real() - } -} - -impl fmt::Debug for SourceFile { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("SourceFile") - .field("path", &self.path()) - .field("is_real", &self.is_real()) - .finish() - } -} - -impl PartialEq for SourceFile { - fn eq(&self, other: &Self) -> bool { - self.0.eq(&other.0) - } -} - -impl Eq for SourceFile {} - -/// A single token or a delimited sequence of token trees (e.g., `[1, (), ..]`). -#[derive(Clone)] -pub enum TokenTree { - /// A token stream surrounded by bracket delimiters. - Group(Group), - /// An identifier. - Ident(Ident), - /// A single punctuation character (`+`, `,`, `$`, etc.). - Punct(Punct), - /// A literal character (`'a'`), string (`"hello"`), number (`2.3`), etc. - Literal(Literal), -} - -impl TokenTree { - /// Returns the span of this tree, delegating to the `span` method of - /// the contained token or a delimited stream. - pub fn span(&self) -> Span { - match *self { - TokenTree::Group(ref t) => t.span(), - TokenTree::Ident(ref t) => t.span(), - TokenTree::Punct(ref t) => t.span(), - TokenTree::Literal(ref t) => t.span(), - } - } - - /// Configures the span for *only this token*. - /// - /// Note that if this token is a `Group` then this method will not configure - /// the span of each of the internal tokens, this will simply delegate to - /// the `set_span` method of each variant. - pub fn set_span(&mut self, span: Span) { - match *self { - TokenTree::Group(ref mut t) => t.set_span(span), - TokenTree::Ident(ref mut t) => t.set_span(span), - TokenTree::Punct(ref mut t) => t.set_span(span), - TokenTree::Literal(ref mut t) => t.set_span(span), - } - } -} - -/// Prints token tree in a form convenient for debugging. -impl fmt::Debug for TokenTree { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - // Each of these has the name in the struct type in the derived debug, - // so don't bother with an extra layer of indirection - match *self { - TokenTree::Group(ref tt) => tt.fmt(f), - TokenTree::Ident(ref tt) => tt.fmt(f), - TokenTree::Punct(ref tt) => tt.fmt(f), - TokenTree::Literal(ref tt) => tt.fmt(f), - } - } -} - -impl From<Group> for TokenTree { - fn from(g: Group) -> TokenTree { - TokenTree::Group(g) - } -} - -impl From<Ident> for TokenTree { - fn from(g: Ident) -> TokenTree { - TokenTree::Ident(g) - } -} - -impl From<Punct> for TokenTree { - fn from(g: Punct) -> TokenTree { - TokenTree::Punct(g) - } -} - -impl From<Literal> for TokenTree { - fn from(g: Literal) -> TokenTree { - TokenTree::Literal(g) - } -} - -/// Prints the token tree as a string that is supposed to be losslessly convertible back -/// into the same token tree (modulo spans), except for possibly `TokenTree::Group`s -/// with `Delimiter::None` delimiters and negative numeric literals. -impl fmt::Display for TokenTree { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(&self.to_string()) - } -} - -/// A delimited token stream. -/// -/// A `Group` internally contains a `TokenStream` which is surrounded by `Delimiter`s. -#[derive(Clone)] -pub struct Group(bridge::Group<bridge::client::TokenStream, bridge::client::Span>); - -/// Describes how a sequence of token trees is delimited. -#[derive(Copy, Clone, Debug, PartialEq, Eq)] -pub enum Delimiter { - /// `( ... )` - Parenthesis, - /// `{ ... }` - Brace, - /// `[ ... ]` - Bracket, - /// `Ø ... Ø` - /// An invisible delimiter, that may, for example, appear around tokens coming from a - /// "macro variable" `$var`. It is important to preserve operator priorities in cases like - /// `$var * 3` where `$var` is `1 + 2`. - /// Invisible delimiters might not survive roundtrip of a token stream through a string. - None, -} - -impl Group { - /// Creates a new `Group` with the given delimiter and token stream. - /// - /// This constructor will set the span for this group to - /// `Span::call_site()`. To change the span you can use the `set_span` - /// method below. - pub fn new(delimiter: Delimiter, stream: TokenStream) -> Group { - Group(bridge::Group { - delimiter, - stream: stream.0, - span: bridge::DelimSpan::from_single(Span::call_site().0), - }) - } - - /// Returns the delimiter of this `Group` - pub fn delimiter(&self) -> Delimiter { - self.0.delimiter - } - - /// Returns the `TokenStream` of tokens that are delimited in this `Group`. - /// - /// Note that the returned token stream does not include the delimiter - /// returned above. - pub fn stream(&self) -> TokenStream { - TokenStream(self.0.stream.clone()) - } - - /// Returns the span for the delimiters of this token stream, spanning the - /// entire `Group`. - /// - /// ```text - /// pub fn span(&self) -> Span { - /// ^^^^^^^ - /// ``` - pub fn span(&self) -> Span { - Span(self.0.span.entire) - } - - /// Returns the span pointing to the opening delimiter of this group. - /// - /// ```text - /// pub fn span_open(&self) -> Span { - /// ^ - /// ``` - pub fn span_open(&self) -> Span { - Span(self.0.span.open) - } - - /// Returns the span pointing to the closing delimiter of this group. - /// - /// ```text - /// pub fn span_close(&self) -> Span { - /// ^ - /// ``` - pub fn span_close(&self) -> Span { - Span(self.0.span.close) - } - - /// Configures the span for this `Group`'s delimiters, but not its internal - /// tokens. - /// - /// This method will **not** set the span of all the internal tokens spanned - /// by this group, but rather it will only set the span of the delimiter - /// tokens at the level of the `Group`. - pub fn set_span(&mut self, span: Span) { - self.0.span = bridge::DelimSpan::from_single(span.0); - } -} - -/// Prints the group as a string that should be losslessly convertible back -/// into the same group (modulo spans), except for possibly `TokenTree::Group`s -/// with `Delimiter::None` delimiters. -impl fmt::Display for Group { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(&self.to_string()) - } -} - -impl fmt::Debug for Group { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("Group") - .field("delimiter", &self.delimiter()) - .field("stream", &self.stream()) - .field("span", &self.span()) - .finish() - } -} - -/// A `Punct` is a single punctuation character such as `+`, `-` or `#`. -/// -/// Multi-character operators like `+=` are represented as two instances of `Punct` with different -/// forms of `Spacing` returned. -#[derive(Clone)] -pub struct Punct(bridge::Punct<bridge::client::Span>); - -/// Describes whether a `Punct` is followed immediately by another `Punct` ([`Spacing::Joint`]) or -/// by a different token or whitespace ([`Spacing::Alone`]). -#[derive(Copy, Clone, Debug, PartialEq, Eq)] -pub enum Spacing { - /// A `Punct` is not immediately followed by another `Punct`. - /// E.g. `+` is `Alone` in `+ =`, `+ident` and `+()`. - Alone, - /// A `Punct` is immediately followed by another `Punct`. - /// E.g. `+` is `Joint` in `+=` and `++`. - /// - /// Additionally, single quote `'` can join with identifiers to form lifetimes: `'ident`. - Joint, -} - -impl Punct { - /// Creates a new `Punct` from the given character and spacing. - /// The `ch` argument must be a valid punctuation character permitted by the language, - /// otherwise the function will panic. - /// - /// The returned `Punct` will have the default span of `Span::call_site()` - /// which can be further configured with the `set_span` method below. - pub fn new(ch: char, spacing: Spacing) -> Punct { - const LEGAL_CHARS: &[char] = &[ - '=', '<', '>', '!', '~', '+', '-', '*', '/', '%', '^', '&', '|', '@', '.', ',', ';', - ':', '#', '$', '?', '\'', - ]; - if !LEGAL_CHARS.contains(&ch) { - panic!("unsupported character `{:?}`", ch); - } - Punct(bridge::Punct { - ch: ch as u8, - joint: spacing == Spacing::Joint, - span: Span::call_site().0, - }) - } - - /// Returns the value of this punctuation character as `char`. - pub fn as_char(&self) -> char { - self.0.ch as char - } - - /// Returns the spacing of this punctuation character, indicating whether it's immediately - /// followed by another `Punct` in the token stream, so they can potentially be combined into - /// a multi-character operator (`Joint`), or it's followed by some other token or whitespace - /// (`Alone`) so the operator has certainly ended. - pub fn spacing(&self) -> Spacing { - if self.0.joint { - Spacing::Joint - } else { - Spacing::Alone - } - } - - /// Returns the span for this punctuation character. - pub fn span(&self) -> Span { - Span(self.0.span) - } - - /// Configure the span for this punctuation character. - pub fn set_span(&mut self, span: Span) { - self.0.span = span.0; - } -} - -/// Prints the punctuation character as a string that should be losslessly convertible -/// back into the same character. -impl fmt::Display for Punct { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(&self.to_string()) - } -} - -impl fmt::Debug for Punct { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("Punct") - .field("ch", &self.as_char()) - .field("spacing", &self.spacing()) - .field("span", &self.span()) - .finish() - } -} - -impl PartialEq<char> for Punct { - fn eq(&self, rhs: &char) -> bool { - self.as_char() == *rhs - } -} - -impl PartialEq<Punct> for char { - fn eq(&self, rhs: &Punct) -> bool { - *self == rhs.as_char() - } -} - -/// An identifier (`ident`). -#[derive(Clone)] -pub struct Ident(bridge::client::Ident); - -impl Ident { - /// Creates a new `Ident` with the given `string` as well as the specified - /// `span`. - /// The `string` argument must be a valid identifier permitted by the - /// language (including keywords, e.g. `self` or `fn`). Otherwise, the function will panic. - /// - /// Note that `span`, currently in rustc, configures the hygiene information - /// for this identifier. - /// - /// As of this time `Span::call_site()` explicitly opts-in to "call-site" hygiene - /// meaning that identifiers created with this span will be resolved as if they were written - /// directly at the location of the macro call, and other code at the macro call site will be - /// able to refer to them as well. - /// - /// Later spans like `Span::def_site()` will allow to opt-in to "definition-site" hygiene - /// meaning that identifiers created with this span will be resolved at the location of the - /// macro definition and other code at the macro call site will not be able to refer to them. - /// - /// Due to the current importance of hygiene this constructor, unlike other - /// tokens, requires a `Span` to be specified at construction. - pub fn new(string: &str, span: Span) -> Ident { - Ident(bridge::client::Ident::new(string, span.0, false)) - } - - /// Same as `Ident::new`, but creates a raw identifier (`r#ident`). - /// The `string` argument be a valid identifier permitted by the language - /// (including keywords, e.g. `fn`). Keywords which are usable in path segments - /// (e.g. `self`, `super`) are not supported, and will cause a panic. - pub fn new_raw(string: &str, span: Span) -> Ident { - Ident(bridge::client::Ident::new(string, span.0, true)) - } - - /// Returns the span of this `Ident`, encompassing the entire string returned - /// by [`to_string`](Self::to_string). - pub fn span(&self) -> Span { - Span(self.0.span()) - } - - /// Configures the span of this `Ident`, possibly changing its hygiene context. - pub fn set_span(&mut self, span: Span) { - self.0 = self.0.with_span(span.0); - } -} - -/// Prints the identifier as a string that should be losslessly convertible -/// back into the same identifier. -impl fmt::Display for Ident { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(&self.to_string()) - } -} - -impl fmt::Debug for Ident { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.debug_struct("Ident") - .field("ident", &self.to_string()) - .field("span", &self.span()) - .finish() - } -} - -/// A literal string (`"hello"`), byte string (`b"hello"`), -/// character (`'a'`), byte character (`b'a'`), an integer or floating point number -/// with or without a suffix (`1`, `1u8`, `2.3`, `2.3f32`). -/// Boolean literals like `true` and `false` do not belong here, they are `Ident`s. -#[derive(Clone)] -pub struct Literal(bridge::client::Literal); - -macro_rules! suffixed_int_literals { - ($($name:ident => $kind:ident,)*) => ($( - /// Creates a new suffixed integer literal with the specified value. - /// - /// This function will create an integer like `1u32` where the integer - /// value specified is the first part of the token and the integral is - /// also suffixed at the end. - /// Literals created from negative numbers might not survive round-trips through - /// `TokenStream` or strings and may be broken into two tokens (`-` and positive literal). - /// - /// Literals created through this method have the `Span::call_site()` - /// span by default, which can be configured with the `set_span` method - /// below. - pub fn $name(n: $kind) -> Literal { - Literal(bridge::client::Literal::typed_integer(&n.to_string(), stringify!($kind))) - } - )*) -} - -macro_rules! unsuffixed_int_literals { - ($($name:ident => $kind:ident,)*) => ($( - /// Creates a new unsuffixed integer literal with the specified value. - /// - /// This function will create an integer like `1` where the integer - /// value specified is the first part of the token. No suffix is - /// specified on this token, meaning that invocations like - /// `Literal::i8_unsuffixed(1)` are equivalent to - /// `Literal::u32_unsuffixed(1)`. - /// Literals created from negative numbers might not survive rountrips through - /// `TokenStream` or strings and may be broken into two tokens (`-` and positive literal). - /// - /// Literals created through this method have the `Span::call_site()` - /// span by default, which can be configured with the `set_span` method - /// below. - pub fn $name(n: $kind) -> Literal { - Literal(bridge::client::Literal::integer(&n.to_string())) - } - )*) -} - -impl Literal { - suffixed_int_literals! { - u8_suffixed => u8, - u16_suffixed => u16, - u32_suffixed => u32, - u64_suffixed => u64, - u128_suffixed => u128, - usize_suffixed => usize, - i8_suffixed => i8, - i16_suffixed => i16, - i32_suffixed => i32, - i64_suffixed => i64, - i128_suffixed => i128, - isize_suffixed => isize, - } - - unsuffixed_int_literals! { - u8_unsuffixed => u8, - u16_unsuffixed => u16, - u32_unsuffixed => u32, - u64_unsuffixed => u64, - u128_unsuffixed => u128, - usize_unsuffixed => usize, - i8_unsuffixed => i8, - i16_unsuffixed => i16, - i32_unsuffixed => i32, - i64_unsuffixed => i64, - i128_unsuffixed => i128, - isize_unsuffixed => isize, - } - - /// Creates a new unsuffixed floating-point literal. - /// - /// This constructor is similar to those like `Literal::i8_unsuffixed` where - /// the float's value is emitted directly into the token but no suffix is - /// used, so it may be inferred to be a `f64` later in the compiler. - /// Literals created from negative numbers might not survive rountrips through - /// `TokenStream` or strings and may be broken into two tokens (`-` and positive literal). - /// - /// # Panics - /// - /// This function requires that the specified float is finite, for - /// example if it is infinity or NaN this function will panic. - pub fn f32_unsuffixed(n: f32) -> Literal { - if !n.is_finite() { - panic!("Invalid float literal {n}"); - } - let mut repr = n.to_string(); - if !repr.contains('.') { - repr.push_str(".0"); - } - Literal(bridge::client::Literal::float(&repr)) - } - - /// Creates a new suffixed floating-point literal. - /// - /// This constructor will create a literal like `1.0f32` where the value - /// specified is the preceding part of the token and `f32` is the suffix of - /// the token. This token will always be inferred to be an `f32` in the - /// compiler. - /// Literals created from negative numbers might not survive rountrips through - /// `TokenStream` or strings and may be broken into two tokens (`-` and positive literal). - /// - /// # Panics - /// - /// This function requires that the specified float is finite, for - /// example if it is infinity or NaN this function will panic. - pub fn f32_suffixed(n: f32) -> Literal { - if !n.is_finite() { - panic!("Invalid float literal {n}"); - } - Literal(bridge::client::Literal::f32(&n.to_string())) - } - - /// Creates a new unsuffixed floating-point literal. - /// - /// This constructor is similar to those like `Literal::i8_unsuffixed` where - /// the float's value is emitted directly into the token but no suffix is - /// used, so it may be inferred to be a `f64` later in the compiler. - /// Literals created from negative numbers might not survive rountrips through - /// `TokenStream` or strings and may be broken into two tokens (`-` and positive literal). - /// - /// # Panics - /// - /// This function requires that the specified float is finite, for - /// example if it is infinity or NaN this function will panic. - pub fn f64_unsuffixed(n: f64) -> Literal { - if !n.is_finite() { - panic!("Invalid float literal {n}"); - } - let mut repr = n.to_string(); - if !repr.contains('.') { - repr.push_str(".0"); - } - Literal(bridge::client::Literal::float(&repr)) - } - - /// Creates a new suffixed floating-point literal. - /// - /// This constructor will create a literal like `1.0f64` where the value - /// specified is the preceding part of the token and `f64` is the suffix of - /// the token. This token will always be inferred to be an `f64` in the - /// compiler. - /// Literals created from negative numbers might not survive rountrips through - /// `TokenStream` or strings and may be broken into two tokens (`-` and positive literal). - /// - /// # Panics - /// - /// This function requires that the specified float is finite, for - /// example if it is infinity or NaN this function will panic. - pub fn f64_suffixed(n: f64) -> Literal { - if !n.is_finite() { - panic!("Invalid float literal {n}"); - } - Literal(bridge::client::Literal::f64(&n.to_string())) - } - - /// String literal. - pub fn string(string: &str) -> Literal { - Literal(bridge::client::Literal::string(string)) - } - - /// Character literal. - pub fn character(ch: char) -> Literal { - Literal(bridge::client::Literal::character(ch)) - } - - /// Byte string literal. - pub fn byte_string(bytes: &[u8]) -> Literal { - Literal(bridge::client::Literal::byte_string(bytes)) - } - - /// Returns the span encompassing this literal. - pub fn span(&self) -> Span { - Span(self.0.span()) - } - - /// Configures the span associated for this literal. - pub fn set_span(&mut self, span: Span) { - self.0.set_span(span.0); - } - - /// Returns a `Span` that is a subset of `self.span()` containing only the - /// source bytes in range `range`. Returns `None` if the would-be trimmed - /// span is outside the bounds of `self`. - // FIXME(SergioBenitez): check that the byte range starts and ends at a - // UTF-8 boundary of the source. otherwise, it's likely that a panic will - // occur elsewhere when the source text is printed. - // FIXME(SergioBenitez): there is no way for the user to know what - // `self.span()` actually maps to, so this method can currently only be - // called blindly. For example, `to_string()` for the character 'c' returns - // "'\u{63}'"; there is no way for the user to know whether the source text - // was 'c' or whether it was '\u{63}'. - pub fn subspan<R: RangeBounds<usize>>(&self, range: R) -> Option<Span> { - self.0.subspan(range.start_bound().cloned(), range.end_bound().cloned()).map(Span) - } -} - -/// Parse a single literal from its stringified representation. -/// -/// In order to parse successfully, the input string must not contain anything -/// but the literal token. Specifically, it must not contain whitespace or -/// comments in addition to the literal. -/// -/// The resulting literal token will have a `Span::call_site()` span. -/// -/// NOTE: some errors may cause panics instead of returning `LexError`. We -/// reserve the right to change these errors into `LexError`s later. -impl FromStr for Literal { - type Err = LexError; - - fn from_str(src: &str) -> Result<Self, LexError> { - match bridge::client::Literal::from_str(src) { - Ok(literal) => Ok(Literal(literal)), - Err(()) => Err(LexError), - } - } -} - -/// Prints the literal as a string that should be losslessly convertible -/// back into the same literal (except for possible rounding for floating point literals). -impl fmt::Display for Literal { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - f.write_str(&self.to_string()) - } -} - -impl fmt::Debug for Literal { - fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { - self.0.fmt(f) - } -} - -/// Tracked access to environment variables. -pub mod tracked_env { - use std::env::{self, VarError}; - use std::ffi::OsStr; - - /// Retrieve an environment variable and add it to build dependency info. - /// Build system executing the compiler will know that the variable was accessed during - /// compilation, and will be able to rerun the build when the value of that variable changes. - /// Besides the dependency tracking this function should be equivalent to `env::var` from the - /// standard library, except that the argument must be UTF-8. - pub fn var<K: AsRef<OsStr> + AsRef<str>>(key: K) -> Result<String, VarError> { - let key: &str = key.as_ref(); - let value = env::var(key); - super::bridge::client::FreeFunctions::track_env_var(key, value.as_deref().ok()); - value - } -} - -/// Tracked access to additional files. -pub mod tracked_path { - - /// Track a file explicitly. - /// - /// Commonly used for tracking asset preprocessing. - pub fn path<P: AsRef<str>>(path: P) { - let path: &str = path.as_ref(); - super::bridge::client::FreeFunctions::track_path(path); - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/quote.rs b/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/quote.rs deleted file mode 100644 index 39309faa41..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/proc_macro/quote.rs +++ /dev/null @@ -1,139 +0,0 @@ -//! # Quasiquoter -//! This file contains the implementation internals of the quasiquoter provided by `quote!`. - -//! This quasiquoter uses macros 2.0 hygiene to reliably access -//! items from `proc_macro`, to build a `proc_macro::TokenStream`. - -use super::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree}; - -macro_rules! quote_tt { - (($($t:tt)*)) => { Group::new(Delimiter::Parenthesis, quote!($($t)*)) }; - ([$($t:tt)*]) => { Group::new(Delimiter::Bracket, quote!($($t)*)) }; - ({$($t:tt)*}) => { Group::new(Delimiter::Brace, quote!($($t)*)) }; - (,) => { Punct::new(',', Spacing::Alone) }; - (.) => { Punct::new('.', Spacing::Alone) }; - (;) => { Punct::new(';', Spacing::Alone) }; - (!) => { Punct::new('!', Spacing::Alone) }; - (<) => { Punct::new('<', Spacing::Alone) }; - (>) => { Punct::new('>', Spacing::Alone) }; - (&) => { Punct::new('&', Spacing::Alone) }; - (=) => { Punct::new('=', Spacing::Alone) }; - ($i:ident) => { Ident::new(stringify!($i), Span::def_site()) }; -} - -macro_rules! quote_ts { - ((@ $($t:tt)*)) => { $($t)* }; - (::) => { - [ - TokenTree::from(Punct::new(':', Spacing::Joint)), - TokenTree::from(Punct::new(':', Spacing::Alone)), - ].iter() - .cloned() - .map(|mut x| { - x.set_span(Span::def_site()); - x - }) - .collect::<TokenStream>() - }; - ($t:tt) => { TokenTree::from(quote_tt!($t)) }; -} - -/// Simpler version of the real `quote!` macro, implemented solely -/// through `macro_rules`, for bootstrapping the real implementation -/// (see the `quote` function), which does not have access to the -/// real `quote!` macro due to the `proc_macro` crate not being -/// able to depend on itself. -/// -/// Note: supported tokens are a subset of the real `quote!`, but -/// unquoting is different: instead of `$x`, this uses `(@ expr)`. -macro_rules! quote { - () => { TokenStream::new() }; - ($($t:tt)*) => { - [ - $(TokenStream::from(quote_ts!($t)),)* - ].iter().cloned().collect::<TokenStream>() - }; -} - -/// Quote a `TokenStream` into a `TokenStream`. -/// This is the actual implementation of the `quote!()` proc macro. -/// -/// It is loaded by the compiler in `register_builtin_macros`. -pub fn quote(stream: TokenStream) -> TokenStream { - if stream.is_empty() { - return quote!(super::TokenStream::new()); - } - let proc_macro_crate = quote!(crate); - let mut after_dollar = false; - let tokens = stream - .into_iter() - .filter_map(|tree| { - if after_dollar { - after_dollar = false; - match tree { - TokenTree::Ident(_) => { - return Some(quote!(Into::<super::TokenStream>::into( - Clone::clone(&(@ tree))),)); - } - TokenTree::Punct(ref tt) if tt.as_char() == '$' => {} - _ => panic!("`$` must be followed by an ident or `$` in `quote!`"), - } - } else if let TokenTree::Punct(ref tt) = tree { - if tt.as_char() == '$' { - after_dollar = true; - return None; - } - } - - Some(quote!(super::TokenStream::from((@ match tree { - TokenTree::Punct(tt) => quote!(super::TokenTree::Punct(super::Punct::new( - (@ TokenTree::from(Literal::character(tt.as_char()))), - (@ match tt.spacing() { - Spacing::Alone => quote!(super::Spacing::Alone), - Spacing::Joint => quote!(super::Spacing::Joint), - }), - ))), - TokenTree::Group(tt) => quote!(super::TokenTree::Group(super::Group::new( - (@ match tt.delimiter() { - Delimiter::Parenthesis => quote!(super::Delimiter::Parenthesis), - Delimiter::Brace => quote!(super::Delimiter::Brace), - Delimiter::Bracket => quote!(super::Delimiter::Bracket), - Delimiter::None => quote!(super::Delimiter::None), - }), - (@ quote(tt.stream())), - ))), - TokenTree::Ident(tt) => quote!(super::TokenTree::Ident(super::Ident::new( - (@ TokenTree::from(Literal::string(&tt.to_string()))), - (@ quote_span(proc_macro_crate.clone(), tt.span())), - ))), - TokenTree::Literal(tt) => quote!(super::TokenTree::Literal({ - let mut iter = (@ TokenTree::from(Literal::string(&tt.to_string()))) - .parse::<super::TokenStream>() - .unwrap() - .into_iter(); - if let (Some(super::TokenTree::Literal(mut lit)), None) = - (iter.next(), iter.next()) - { - lit.set_span((@ quote_span(proc_macro_crate.clone(), tt.span()))); - lit - } else { - unreachable!() - } - })) - })),)) - }) - .collect::<TokenStream>(); - - if after_dollar { - panic!("unexpected trailing `$` in `quote!`"); - } - - quote!([(@ tokens)].iter().cloned().collect::<super::TokenStream>()) -} - -/// Quote a `Span` into a `TokenStream`. -/// This is needed to implement a custom quoter. -pub fn quote_span(proc_macro_crate: TokenStream, span: Span) -> TokenStream { - let id = span.save_span(); - quote!((@ proc_macro_crate ) ::Span::recover_proc_macro_span((@ TokenTree::from(Literal::usize_unsuffixed(id))))) -} diff --git a/crates/proc-macro-srv/src/abis/abi_1_64/ra_server.rs b/crates/proc-macro-srv/src/abis/abi_1_64/ra_server.rs deleted file mode 100644 index 7e8e67856e..0000000000 --- a/crates/proc-macro-srv/src/abis/abi_1_64/ra_server.rs +++ /dev/null @@ -1,792 +0,0 @@ -//! Rustc proc-macro server implementation with tt -//! -//! Based on idea from <https://github.com/fedochet/rust-proc-macro-expander> -//! The lib-proc-macro server backend is `TokenStream`-agnostic, such that -//! we could provide any TokenStream implementation. -//! The original idea from fedochet is using proc-macro2 as backend, -//! we use tt instead for better integration with RA. -//! -//! FIXME: No span and source file information is implemented yet - -use super::proc_macro::bridge::{self, server}; - -use std::collections::HashMap; -use std::hash::Hash; -use std::iter::FromIterator; -use std::ops::Bound; -use std::{ascii, vec::IntoIter}; - -type Group = tt::Subtree; -type TokenTree = tt::TokenTree; -type Punct = tt::Punct; -type Spacing = tt::Spacing; -type Literal = tt::Literal; -type Span = tt::TokenId; - -#[derive(Debug, Default, Clone)] -pub struct TokenStream { - pub token_trees: Vec<TokenTree>, -} - -impl TokenStream { - pub fn new() -> Self { - TokenStream::default() - } - - pub fn with_subtree(subtree: tt::Subtree) -> Self { - if subtree.delimiter.is_some() { - TokenStream { token_trees: vec![TokenTree::Subtree(subtree)] } - } else { - TokenStream { token_trees: subtree.token_trees } - } - } - - pub fn into_subtree(self) -> tt::Subtree { - tt::Subtree { delimiter: None, token_trees: self.token_trees } - } - - pub fn is_empty(&self) -> bool { - self.token_trees.is_empty() - } -} - -/// Creates a token stream containing a single token tree. -impl From<TokenTree> for TokenStream { - fn from(tree: TokenTree) -> TokenStream { - TokenStream { token_trees: vec![tree] } - } -} - -/// Collects a number of token trees into a single stream. -impl FromIterator<TokenTree> for TokenStream { - fn from_iter<I: IntoIterator<Item = TokenTree>>(trees: I) -> Self { - trees.into_iter().map(TokenStream::from).collect() - } -} - -/// A "flattening" operation on token streams, collects token trees -/// from multiple token streams into a single stream. -impl FromIterator<TokenStream> for TokenStream { - fn from_iter<I: IntoIterator<Item = TokenStream>>(streams: I) -> Self { - let mut builder = TokenStreamBuilder::new(); - streams.into_iter().for_each(|stream| builder.push(stream)); - builder.build() - } -} - -impl Extend<TokenTree> for TokenStream { - fn extend<I: IntoIterator<Item = TokenTree>>(&mut self, trees: I) { - self.extend(trees.into_iter().map(TokenStream::from)); - } -} - -impl Extend<TokenStream> for TokenStream { - fn extend<I: IntoIterator<Item = TokenStream>>(&mut self, streams: I) { - for item in streams { - for tkn in item { - match tkn { - tt::TokenTree::Subtree(subtree) if subtree.delimiter.is_none() => { - self.token_trees.extend(subtree.token_trees); - } - _ => { - self.token_trees.push(tkn); - } - } - } - } - } -} - -#[derive(Clone)] -pub struct SourceFile { - // FIXME stub -} - -type Level = super::proc_macro::Level; -type LineColumn = super::proc_macro::LineColumn; - -/// A structure representing a diagnostic message and associated children -/// messages. -#[derive(Clone, Debug)] -pub struct Diagnostic { - level: Level, - message: String, - spans: Vec<Span>, - children: Vec<Diagnostic>, -} - -impl Diagnostic { - /// Creates a new diagnostic with the given `level` and `message`. - pub fn new<T: Into<String>>(level: Level, message: T) -> Diagnostic { - Diagnostic { level, message: message.into(), spans: vec![], children: vec![] } - } -} - -// Rustc Server Ident has to be `Copyable` -// We use a stub here for bypassing -#[derive(Hash, Eq, PartialEq, Copy, Clone)] -pub struct IdentId(u32); - -#[derive(Clone, Hash, Eq, PartialEq)] -struct IdentData(tt::Ident); - -#[derive(Default)] -struct IdentInterner { - idents: HashMap<IdentData, u32>, - ident_data: Vec<IdentData>, -} - -impl IdentInterner { - fn intern(&mut self, data: &IdentData) -> u32 { - if let Some(index) = self.idents.get(data) { - return *index; - } - - let index = self.idents.len() as u32; - self.ident_data.push(data.clone()); - self.idents.insert(data.clone(), index); - index - } - - fn get(&self, index: u32) -> &IdentData { - &self.ident_data[index as usize] - } - - #[allow(unused)] - fn get_mut(&mut self, index: u32) -> &mut IdentData { - self.ident_data.get_mut(index as usize).expect("Should be consistent") - } -} - -pub struct TokenStreamBuilder { - acc: TokenStream, -} - -/// Public implementation details for the `TokenStream` type, such as iterators. -pub mod token_stream { - use std::str::FromStr; - - use super::{TokenStream, TokenTree}; - - /// An iterator over `TokenStream`'s `TokenTree`s. - /// The iteration is "shallow", e.g., the iterator doesn't recurse into delimited groups, - /// and returns whole groups as token trees. - impl IntoIterator for TokenStream { - type Item = TokenTree; - type IntoIter = super::IntoIter<TokenTree>; - - fn into_iter(self) -> Self::IntoIter { - self.token_trees.into_iter() - } - } - - type LexError = String; - - /// Attempts to break the string into tokens and parse those tokens into a token stream. - /// May fail for a number of reasons, for example, if the string contains unbalanced delimiters - /// or characters not existing in the language. - /// All tokens in the parsed stream get `Span::call_site()` spans. - /// - /// NOTE: some errors may cause panics instead of returning `LexError`. We reserve the right to - /// change these errors into `LexError`s later. - impl FromStr for TokenStream { - type Err = LexError; - - fn from_str(src: &str) -> Result<TokenStream, LexError> { - let (subtree, _token_map) = - mbe::parse_to_token_tree(src).ok_or("Failed to parse from mbe")?; - - let subtree = subtree_replace_token_ids_with_unspecified(subtree); - Ok(TokenStream::with_subtree(subtree)) - } - } - - impl ToString for TokenStream { - fn to_string(&self) -> String { - tt::pretty(&self.token_trees) - } - } - - fn subtree_replace_token_ids_with_unspecified(subtree: tt::Subtree) -> tt::Subtree { - tt::Subtree { - delimiter: subtree - .delimiter - .map(|d| tt::Delimiter { id: tt::TokenId::unspecified(), ..d }), - token_trees: subtree - .token_trees - .into_iter() - .map(token_tree_replace_token_ids_with_unspecified) - .collect(), - } - } - - fn token_tree_replace_token_ids_with_unspecified(tt: tt::TokenTree) -> tt::TokenTree { - match tt { - tt::TokenTree::Leaf(leaf) => { - tt::TokenTree::Leaf(leaf_replace_token_ids_with_unspecified(leaf)) - } - tt::TokenTree::Subtree(subtree) => { - tt::TokenTree::Subtree(subtree_replace_token_ids_with_unspecified(subtree)) - } - } - } - - fn leaf_replace_token_ids_with_unspecified(leaf: tt::Leaf) -> tt::Leaf { - match leaf { - tt::Leaf::Literal(lit) => { - tt::Leaf::Literal(tt::Literal { id: tt::TokenId::unspecified(), ..lit }) - } - tt::Leaf::Punct(punct) => { - tt::Leaf::Punct(tt::Punct { id: tt::TokenId::unspecified(), ..punct }) - } - tt::Leaf::Ident(ident) => { - tt::Leaf::Ident(tt::Ident { id: tt::TokenId::unspecified(), ..ident }) - } - } - } -} - -impl TokenStreamBuilder { - fn new() -> TokenStreamBuilder { - TokenStreamBuilder { acc: TokenStream::new() } - } - - fn push(&mut self, stream: TokenStream) { - self.acc.extend(stream.into_iter()) - } - - fn build(self) -> TokenStream { - self.acc - } -} - -pub struct FreeFunctions; - -#[derive(Clone)] -pub struct TokenStreamIter { - trees: IntoIter<TokenTree>, -} - -#[derive(Default)] -pub struct RustAnalyzer { - ident_interner: IdentInterner, - // FIXME: store span information here. -} - -impl server::Types for RustAnalyzer { - type FreeFunctions = FreeFunctions; - type TokenStream = TokenStream; - type Ident = IdentId; - type Literal = Literal; - type SourceFile = SourceFile; - type Diagnostic = Diagnostic; - type Span = Span; - type MultiSpan = Vec<Span>; -} - -impl server::FreeFunctions for RustAnalyzer { - fn track_env_var(&mut self, _var: &str, _value: Option<&str>) { - // FIXME: track env var accesses - // https://github.com/rust-lang/rust/pull/71858 - } - fn track_path(&mut self, _path: &str) {} -} - -impl server::TokenStream for RustAnalyzer { - fn is_empty(&mut self, stream: &Self::TokenStream) -> bool { - stream.is_empty() - } - fn from_str(&mut self, src: &str) -> Self::TokenStream { - use std::str::FromStr; - - Self::TokenStream::from_str(src).expect("cannot parse string") - } - fn to_string(&mut self, stream: &Self::TokenStream) -> String { - stream.to_string() - } - fn from_token_tree( - &mut self, - tree: bridge::TokenTree<Self::TokenStream, Self::Span, Self::Ident, Self::Literal>, - ) -> Self::TokenStream { - match tree { - bridge::TokenTree::Group(group) => { - let group = Group { - delimiter: delim_to_internal(group.delimiter), - token_trees: match group.stream { - Some(stream) => stream.into_iter().collect(), - None => Vec::new(), - }, - }; - let tree = TokenTree::from(group); - Self::TokenStream::from_iter(vec![tree]) - } - - bridge::TokenTree::Ident(IdentId(index)) => { - let IdentData(ident) = self.ident_interner.get(index).clone(); - let ident: tt::Ident = ident; - let leaf = tt::Leaf::from(ident); - let tree = TokenTree::from(leaf); - Self::TokenStream::from_iter(vec![tree]) - } - - bridge::TokenTree::Literal(literal) => { - let leaf = tt::Leaf::from(literal); - let tree = TokenTree::from(leaf); - Self::TokenStream::from_iter(vec![tree]) - } - - bridge::TokenTree::Punct(p) => { - let punct = tt::Punct { - char: p.ch as char, - spacing: if p.joint { Spacing::Joint } else { Spacing::Alone }, - id: p.span, - }; - let leaf = tt::Leaf::from(punct); - let tree = TokenTree::from(leaf); - Self::TokenStream::from_iter(vec![tree]) - } - } - } - - fn expand_expr(&mut self, self_: &Self::TokenStream) -> Result<Self::TokenStream, ()> { - Ok(self_.clone()) - } - - fn concat_trees( - &mut self, - base: Option<Self::TokenStream>, - trees: Vec<bridge::TokenTree<Self::TokenStream, Self::Span, Self::Ident, Self::Literal>>, - ) -> Self::TokenStream { - let mut builder = TokenStreamBuilder::new(); - if let Some(base) = base { - builder.push(base); - } - for tree in trees { - builder.push(self.from_token_tree(tree)); - } - builder.build() - } - - fn concat_streams( - &mut self, - base: Option<Self::TokenStream>, - streams: Vec<Self::TokenStream>, - ) -> Self::TokenStream { - let mut builder = TokenStreamBuilder::new(); - if let Some(base) = base { - builder.push(base); - } - for stream in streams { - builder.push(stream); - } - builder.build() - } - - fn into_trees( - &mut self, - stream: Self::TokenStream, - ) -> Vec<bridge::TokenTree<Self::TokenStream, Self::Span, Self::Ident, Self::Literal>> { - stream - .into_iter() - .map(|tree| match tree { - tt::TokenTree::Leaf(tt::Leaf::Ident(ident)) => { - bridge::TokenTree::Ident(IdentId(self.ident_interner.intern(&IdentData(ident)))) - } - tt::TokenTree::Leaf(tt::Leaf::Literal(lit)) => bridge::TokenTree::Literal(lit), - tt::TokenTree::Leaf(tt::Leaf::Punct(punct)) => { - bridge::TokenTree::Punct(bridge::Punct { - ch: punct.char as u8, - joint: punct.spacing == Spacing::Joint, - span: punct.id, - }) - } - tt::TokenTree::Subtree(subtree) => bridge::TokenTree::Group(bridge::Group { - delimiter: delim_to_external(subtree.delimiter), - stream: if subtree.token_trees.is_empty() { - None - } else { - Some(subtree.token_trees.into_iter().collect()) - }, - span: bridge::DelimSpan::from_single( - subtree.delimiter.map_or(Span::unspecified(), |del| del.id), - ), - }), - }) - .collect() - } -} - -fn delim_to_internal(d: bridge::Delimiter) -> Option<tt::Delimiter> { - let kind = match d { - bridge::Delimiter::Parenthesis => tt::DelimiterKind::Parenthesis, - bridge::Delimiter::Brace => tt::DelimiterKind::Brace, - bridge::Delimiter::Bracket => tt::DelimiterKind::Bracket, - bridge::Delimiter::None => return None, - }; - Some(tt::Delimiter { id: tt::TokenId::unspecified(), kind }) -} - -fn delim_to_external(d: Option<tt::Delimiter>) -> bridge::Delimiter { - match d.map(|it| it.kind) { - Some(tt::DelimiterKind::Parenthesis) => bridge::Delimiter::Parenthesis, - Some(tt::DelimiterKind::Brace) => bridge::Delimiter::Brace, - Some(tt::DelimiterKind::Bracket) => bridge::Delimiter::Bracket, - None => bridge::Delimiter::None, - } -} - -fn spacing_to_internal(spacing: bridge::Spacing) -> Spacing { - match spacing { - bridge::Spacing::Alone => Spacing::Alone, - bridge::Spacing::Joint => Spacing::Joint, - } -} - -fn spacing_to_external(spacing: Spacing) -> bridge::Spacing { - match spacing { - Spacing::Alone => bridge::Spacing::Alone, - Spacing::Joint => bridge::Spacing::Joint, - } -} - -impl server::Ident for RustAnalyzer { - fn new(&mut self, string: &str, span: Self::Span, _is_raw: bool) -> Self::Ident { - IdentId(self.ident_interner.intern(&IdentData(tt::Ident { text: string.into(), id: span }))) - } - - fn span(&mut self, ident: Self::Ident) -> Self::Span { - self.ident_interner.get(ident.0).0.id - } - fn with_span(&mut self, ident: Self::Ident, span: Self::Span) -> Self::Ident { - let data = self.ident_interner.get(ident.0); - let new = IdentData(tt::Ident { id: span, ..data.0.clone() }); - IdentId(self.ident_interner.intern(&new)) - } -} - -impl server::Literal for RustAnalyzer { - fn debug_kind(&mut self, _literal: &Self::Literal) -> String { - // r-a: debug_kind and suffix are unsupported; corresponding client code has been changed to not call these. - // They must still be present to be ABI-compatible and work with upstream proc_macro. - "".to_owned() - } - fn from_str(&mut self, s: &str) -> Result<Self::Literal, ()> { - Ok(Literal { text: s.into(), id: tt::TokenId::unspecified() }) - } - fn symbol(&mut self, literal: &Self::Literal) -> String { - literal.text.to_string() - } - fn suffix(&mut self, _literal: &Self::Literal) -> Option<String> { - None - } - - fn to_string(&mut self, literal: &Self::Literal) -> String { - literal.to_string() - } - - fn integer(&mut self, n: &str) -> Self::Literal { - let n = match n.parse::<i128>() { - Ok(n) => n.to_string(), - Err(_) => n.parse::<u128>().unwrap().to_string(), - }; - Literal { text: n.into(), id: tt::TokenId::unspecified() } - } - - fn typed_integer(&mut self, n: &str, kind: &str) -> Self::Literal { - macro_rules! def_suffixed_integer { - ($kind:ident, $($ty:ty),*) => { - match $kind { - $( - stringify!($ty) => { - let n: $ty = n.parse().unwrap(); - format!(concat!("{}", stringify!($ty)), n) - } - )* - _ => unimplemented!("unknown args for typed_integer: n {}, kind {}", n, $kind), - } - } - } - - let text = def_suffixed_integer! {kind, u8, u16, u32, u64, u128, usize, i8, i16, i32, i64, i128, isize}; - - Literal { text: text.into(), id: tt::TokenId::unspecified() } - } - - fn float(&mut self, n: &str) -> Self::Literal { - let n: f64 = n.parse().unwrap(); - let mut text = f64::to_string(&n); - if !text.contains('.') { - text += ".0" - } - Literal { text: text.into(), id: tt::TokenId::unspecified() } - } - - fn f32(&mut self, n: &str) -> Self::Literal { - let n: f32 = n.parse().unwrap(); - let text = format!("{}f32", n); - Literal { text: text.into(), id: tt::TokenId::unspecified() } - } - - fn f64(&mut self, n: &str) -> Self::Literal { - let n: f64 = n.parse().unwrap(); - let text = format!("{}f64", n); - Literal { text: text.into(), id: tt::TokenId::unspecified() } - } - - fn string(&mut self, string: &str) -> Self::Literal { - let mut escaped = String::new(); - for ch in string.chars() { - escaped.extend(ch.escape_debug()); - } - Literal { text: format!("\"{}\"", escaped).into(), id: tt::TokenId::unspecified() } - } - - fn character(&mut self, ch: char) -> Self::Literal { - Literal { text: format!("'{}'", ch).into(), id: tt::TokenId::unspecified() } - } - - fn byte_string(&mut self, bytes: &[u8]) -> Self::Literal { - let string = bytes - .iter() - .cloned() - .flat_map(ascii::escape_default) - .map(Into::<char>::into) - .collect::<String>(); - - Literal { text: format!("b\"{}\"", string).into(), id: tt::TokenId::unspecified() } - } - - fn span(&mut self, literal: &Self::Literal) -> Self::Span { - literal.id - } - - fn set_span(&mut self, literal: &mut Self::Literal, span: Self::Span) { - literal.id = span; - } - - fn subspan( - &mut self, - _literal: &Self::Literal, - _start: Bound<usize>, - _end: Bound<usize>, - ) -> Option<Self::Span> { - // FIXME handle span - None - } -} - -impl server::SourceFile for RustAnalyzer { - // FIXME these are all stubs - fn eq(&mut self, _file1: &Self::SourceFile, _file2: &Self::SourceFile) -> bool { - true - } - fn path(&mut self, _file: &Self::SourceFile) -> String { - String::new() - } - fn is_real(&mut self, _file: &Self::SourceFile) -> bool { - true - } -} - -impl server::Diagnostic for RustAnalyzer { - fn new(&mut self, level: Level, msg: &str, spans: Self::MultiSpan) -> Self::Diagnostic { - let mut diag = Diagnostic::new(level, msg); - diag.spans = spans; - diag - } - - fn sub( - &mut self, - _diag: &mut Self::Diagnostic, - _level: Level, - _msg: &str, - _spans: Self::MultiSpan, - ) { - // FIXME handle diagnostic - // - } - - fn emit(&mut self, _diag: Self::Diagnostic) { - // FIXME handle diagnostic - // diag.emit() - } -} - -impl server::Span for RustAnalyzer { - fn debug(&mut self, span: Self::Span) -> String { - format!("{:?}", span.0) - } - fn source_file(&mut self, _span: Self::Span) -> Self::SourceFile { - SourceFile {} - } - fn save_span(&mut self, _span: Self::Span) -> usize { - // FIXME stub - 0 - } - fn recover_proc_macro_span(&mut self, _id: usize) -> Self::Span { - // FIXME stub - tt::TokenId::unspecified() - } - /// Recent feature, not yet in the proc_macro - /// - /// See PR: - /// https://github.com/rust-lang/rust/pull/55780 - fn source_text(&mut self, _span: Self::Span) -> Option<String> { - None - } - - fn parent(&mut self, _span: Self::Span) -> Option<Self::Span> { - // FIXME handle span - None - } - fn source(&mut self, span: Self::Span) -> Self::Span { - // FIXME handle span - span - } - fn start(&mut self, _span: Self::Span) -> LineColumn { - // FIXME handle span - LineColumn { line: 0, column: 0 } - } - fn end(&mut self, _span: Self::Span) -> LineColumn { - // FIXME handle span - LineColumn { line: 0, column: 0 } - } - fn join(&mut self, first: Self::Span, _second: Self::Span) -> Option<Self::Span> { - // Just return the first span again, because some macros will unwrap the result. - Some(first) - } - fn resolved_at(&mut self, _span: Self::Span, _at: Self::Span) -> Self::Span { - // FIXME handle span - tt::TokenId::unspecified() - } - - fn after(&mut self, _self_: Self::Span) -> Self::Span { - tt::TokenId::unspecified() - } - - fn before(&mut self, _self_: Self::Span) -> Self::Span { - tt::TokenId::unspecified() - } -} - -impl server::MultiSpan for RustAnalyzer { - fn new(&mut self) -> Self::MultiSpan { - // FIXME handle span - vec![] - } - - fn push(&mut self, other: &mut Self::MultiSpan, span: Self::Span) { - //TODP - other.push(span) - } -} - -impl server::Server for RustAnalyzer { - fn globals(&mut self) -> bridge::ExpnGlobals<Self::Span> { - bridge::ExpnGlobals { - def_site: Span::unspecified(), - call_site: Span::unspecified(), - mixed_site: Span::unspecified(), - } - } -} - -#[cfg(test)] -mod tests { - use super::super::proc_macro::bridge::server::Literal; - use super::*; - - #[test] - fn test_ra_server_literals() { - let mut srv = RustAnalyzer { ident_interner: IdentInterner::default() }; - assert_eq!(srv.integer("1234").text, "1234"); - - assert_eq!(srv.typed_integer("12", "u8").text, "12u8"); - assert_eq!(srv.typed_integer("255", "u16").text, "255u16"); - assert_eq!(srv.typed_integer("1234", "u32").text, "1234u32"); - assert_eq!(srv.typed_integer("15846685", "u64").text, "15846685u64"); - assert_eq!(srv.typed_integer("15846685258", "u128").text, "15846685258u128"); - assert_eq!(srv.typed_integer("156788984", "usize").text, "156788984usize"); - assert_eq!(srv.typed_integer("127", "i8").text, "127i8"); - assert_eq!(srv.typed_integer("255", "i16").text, "255i16"); - assert_eq!(srv.typed_integer("1234", "i32").text, "1234i32"); - assert_eq!(srv.typed_integer("15846685", "i64").text, "15846685i64"); - assert_eq!(srv.typed_integer("15846685258", "i128").text, "15846685258i128"); - assert_eq!(srv.float("0").text, "0.0"); - assert_eq!(srv.float("15684.5867").text, "15684.5867"); - assert_eq!(srv.f32("15684.58").text, "15684.58f32"); - assert_eq!(srv.f64("15684.58").text, "15684.58f64"); - - assert_eq!(srv.string("hello_world").text, "\"hello_world\""); - assert_eq!(srv.character('c').text, "'c'"); - assert_eq!(srv.byte_string(b"1234586\x88").text, "b\"1234586\\x88\""); - - // u128::max - assert_eq!( - srv.integer("340282366920938463463374607431768211455").text, - "340282366920938463463374607431768211455" - ); - // i128::min - assert_eq!( - srv.integer("-170141183460469231731687303715884105728").text, - "-170141183460469231731687303715884105728" - ); - } - - #[test] - fn test_ra_server_to_string() { - let s = TokenStream { - token_trees: vec![ - tt::TokenTree::Leaf(tt::Leaf::Ident(tt::Ident { - text: "struct".into(), - id: tt::TokenId::unspecified(), - })), - tt::TokenTree::Leaf(tt::Leaf::Ident(tt::Ident { - text: "T".into(), - id: tt::TokenId::unspecified(), - })), - tt::TokenTree::Subtree(tt::Subtree { - delimiter: Some(tt::Delimiter { - id: tt::TokenId::unspecified(), - kind: tt::DelimiterKind::Brace, - }), - token_trees: vec![], - }), - ], - }; - - assert_eq!(s.to_string(), "struct T {}"); - } - - #[test] - fn test_ra_server_from_str() { - use std::str::FromStr; - let subtree_paren_a = tt::TokenTree::Subtree(tt::Subtree { - delimiter: Some(tt::Delimiter { - id: tt::TokenId::unspecified(), - kind: tt::DelimiterKind::Parenthesis, - }), - token_trees: vec![tt::TokenTree::Leaf(tt::Leaf::Ident(tt::Ident { - text: "a".into(), - id: tt::TokenId::unspecified(), - }))], - }); - - let t1 = TokenStream::from_str("(a)").unwrap(); - assert_eq!(t1.token_trees.len(), 1); - assert_eq!(t1.token_trees[0], subtree_paren_a); - - let t2 = TokenStream::from_str("(a);").unwrap(); - assert_eq!(t2.token_trees.len(), 2); - assert_eq!(t2.token_trees[0], subtree_paren_a); - - let underscore = TokenStream::from_str("_").unwrap(); - assert_eq!( - underscore.token_trees[0], - tt::TokenTree::Leaf(tt::Leaf::Ident(tt::Ident { - text: "_".into(), - id: tt::TokenId::unspecified(), - })) - ); - } -} diff --git a/crates/proc-macro-srv/src/abis/abi_sysroot/ra_server.rs b/crates/proc-macro-srv/src/abis/abi_sysroot/ra_server.rs index 46882845a8..52eb7ce17d 100644 --- a/crates/proc-macro-srv/src/abis/abi_sysroot/ra_server.rs +++ b/crates/proc-macro-srv/src/abis/abi_sysroot/ra_server.rs @@ -20,7 +20,7 @@ use token_stream::TokenStreamBuilder; mod symbol; pub use symbol::*; -use std::{iter::FromIterator, ops::Bound}; +use std::ops::Bound; type Group = tt::Subtree; type TokenTree = tt::TokenTree; diff --git a/crates/proc-macro-srv/src/abis/mod.rs b/crates/proc-macro-srv/src/abis/mod.rs index 705d09ea94..f7d3a30919 100644 --- a/crates/proc-macro-srv/src/abis/mod.rs +++ b/crates/proc-macro-srv/src/abis/mod.rs @@ -25,7 +25,6 @@ mod abi_1_58; mod abi_1_63; -mod abi_1_64; #[cfg(feature = "sysroot-abi")] mod abi_sysroot; @@ -34,12 +33,11 @@ include!(concat!(env!("OUT_DIR"), "/rustc_version.rs")); // Used by `test/utils.rs` #[cfg(test)] -pub(crate) use abi_1_64::TokenStream as TestTokenStream; +pub(crate) use abi_1_63::TokenStream as TestTokenStream; use super::dylib::LoadProcMacroDylibError; pub(crate) use abi_1_58::Abi as Abi_1_58; pub(crate) use abi_1_63::Abi as Abi_1_63; -pub(crate) use abi_1_64::Abi as Abi_1_64; #[cfg(feature = "sysroot-abi")] pub(crate) use abi_sysroot::Abi as Abi_Sysroot; use libloading::Library; @@ -58,7 +56,6 @@ impl PanicMessage { pub(crate) enum Abi { Abi1_58(Abi_1_58), Abi1_63(Abi_1_63), - Abi1_64(Abi_1_64), #[cfg(feature = "sysroot-abi")] AbiSysroot(Abi_Sysroot), } @@ -120,10 +117,6 @@ impl Abi { let inner = unsafe { Abi_1_63::from_lib(lib, symbol_name) }?; Ok(Abi::Abi1_63(inner)) } - (1, 64..) => { - let inner = unsafe { Abi_1_64::from_lib(lib, symbol_name) }?; - Ok(Abi::Abi1_64(inner)) - } _ => Err(LoadProcMacroDylibError::UnsupportedABI), } } @@ -137,7 +130,6 @@ impl Abi { match self { Self::Abi1_58(abi) => abi.expand(macro_name, macro_body, attributes), Self::Abi1_63(abi) => abi.expand(macro_name, macro_body, attributes), - Self::Abi1_64(abi) => abi.expand(macro_name, macro_body, attributes), #[cfg(feature = "sysroot-abi")] Self::AbiSysroot(abi) => abi.expand(macro_name, macro_body, attributes), } @@ -147,7 +139,6 @@ impl Abi { match self { Self::Abi1_58(abi) => abi.list_macros(), Self::Abi1_63(abi) => abi.list_macros(), - Self::Abi1_64(abi) => abi.list_macros(), #[cfg(feature = "sysroot-abi")] Self::AbiSysroot(abi) => abi.list_macros(), } diff --git a/crates/proc-macro-srv/src/dylib.rs b/crates/proc-macro-srv/src/dylib.rs index 2b6c070fec..7aba74e539 100644 --- a/crates/proc-macro-srv/src/dylib.rs +++ b/crates/proc-macro-srv/src/dylib.rs @@ -1,7 +1,6 @@ //! Handles dynamic library loading for proc macro use std::{ - convert::TryInto, fmt, fs::File, io, diff --git a/crates/proc-macro-srv/src/tests/mod.rs b/crates/proc-macro-srv/src/tests/mod.rs index 07222907f0..6339d56d01 100644 --- a/crates/proc-macro-srv/src/tests/mod.rs +++ b/crates/proc-macro-srv/src/tests/mod.rs @@ -19,7 +19,7 @@ fn test_derive_error() { expect![[r##" SUBTREE $ IDENT compile_error 4294967295 - PUNCH ! [alone] 4294967295 + PUNCH ! [joint] 4294967295 SUBTREE () 4294967295 LITERAL "#[derive(DeriveError)] struct S ;" 4294967295 PUNCH ; [alone] 4294967295"##]], @@ -109,7 +109,7 @@ fn test_fn_like_macro_clone_literals() { PUNCH , [alone] 4294967295 LITERAL 2_u32 4294967295 PUNCH , [alone] 4294967295 - PUNCH - [alone] 4294967295 + PUNCH - [joint] 4294967295 LITERAL 4i64 4294967295 PUNCH , [alone] 4294967295 LITERAL 3.14f32 4294967295 @@ -130,7 +130,7 @@ fn test_attr_macro() { expect![[r##" SUBTREE $ IDENT compile_error 4294967295 - PUNCH ! [alone] 4294967295 + PUNCH ! [joint] 4294967295 SUBTREE () 4294967295 LITERAL "#[attr_error(some arguments)] mod m {}" 4294967295 PUNCH ; [alone] 4294967295"##]], diff --git a/crates/project-model/src/build_scripts.rs b/crates/project-model/src/build_scripts.rs index ee7f8339a7..84e772d168 100644 --- a/crates/project-model/src/build_scripts.rs +++ b/crates/project-model/src/build_scripts.rs @@ -12,6 +12,7 @@ use cargo_metadata::{camino::Utf8Path, Message}; use la_arena::ArenaMap; use paths::AbsPathBuf; use rustc_hash::FxHashMap; +use semver::Version; use serde::Deserialize; use crate::{cfg_flag::CfgFlag, CargoConfig, CargoWorkspace, Package}; @@ -77,9 +78,32 @@ impl WorkspaceBuildScripts { config: &CargoConfig, workspace: &CargoWorkspace, progress: &dyn Fn(String), + toolchain: &Option<Version>, ) -> io::Result<WorkspaceBuildScripts> { - let mut cmd = Self::build_command(config); + const RUST_1_62: Version = Version::new(1, 62, 0); + match Self::run_(Self::build_command(config), config, workspace, progress) { + Ok(WorkspaceBuildScripts { error: Some(error), .. }) + if toolchain.as_ref().map_or(false, |it| *it >= RUST_1_62) => + { + // building build scripts failed, attempt to build with --keep-going so + // that we potentially get more build data + let mut cmd = Self::build_command(config); + cmd.args(&["-Z", "unstable-options", "--keep-going"]).env("RUSTC_BOOTSTRAP", "1"); + let mut res = Self::run_(cmd, config, workspace, progress)?; + res.error = Some(error); + Ok(res) + } + res => res, + } + } + + fn run_( + mut cmd: Command, + config: &CargoConfig, + workspace: &CargoWorkspace, + progress: &dyn Fn(String), + ) -> io::Result<WorkspaceBuildScripts> { if config.wrap_rustc_in_build_scripts { // Setup RUSTC_WRAPPER to point to `rust-analyzer` binary itself. We use // that to compile only proc macros and build scripts during the initial diff --git a/crates/project-model/src/tests.rs b/crates/project-model/src/tests.rs index e304a59c01..8d0fa757c2 100644 --- a/crates/project-model/src/tests.rs +++ b/crates/project-model/src/tests.rs @@ -28,6 +28,7 @@ fn load_cargo_with_overrides(file: &str, cfg_overrides: CfgOverrides) -> CrateGr rustc: None, rustc_cfg: Vec::new(), cfg_overrides, + toolchain: None, }; to_crate_graph(project_workspace) } diff --git a/crates/project-model/src/workspace.rs b/crates/project-model/src/workspace.rs index b144006b44..daabb299f7 100644 --- a/crates/project-model/src/workspace.rs +++ b/crates/project-model/src/workspace.rs @@ -12,6 +12,7 @@ use base_db::{ use cfg::{CfgDiff, CfgOptions}; use paths::{AbsPath, AbsPathBuf}; use rustc_hash::{FxHashMap, FxHashSet}; +use semver::Version; use stdx::always; use crate::{ @@ -77,6 +78,7 @@ pub enum ProjectWorkspace { /// different target. rustc_cfg: Vec<CfgFlag>, cfg_overrides: CfgOverrides, + toolchain: Option<Version>, }, /// Project workspace was manually specified using a `rust-project.json` file. Json { project: ProjectJson, sysroot: Option<Sysroot>, rustc_cfg: Vec<CfgFlag> }, @@ -105,6 +107,7 @@ impl fmt::Debug for ProjectWorkspace { rustc, rustc_cfg, cfg_overrides, + toolchain, } => f .debug_struct("Cargo") .field("root", &cargo.workspace_root().file_name()) @@ -116,6 +119,7 @@ impl fmt::Debug for ProjectWorkspace { ) .field("n_rustc_cfg", &rustc_cfg.len()) .field("n_cfg_overrides", &cfg_overrides.len()) + .field("toolchain", &toolchain) .finish(), ProjectWorkspace::Json { project, sysroot, rustc_cfg } => { let mut debug_struct = f.debug_struct("Json"); @@ -160,6 +164,9 @@ impl ProjectWorkspace { cmd.arg("--version"); cmd })?; + let toolchain = cargo_version + .get("cargo ".len()..) + .and_then(|it| Version::parse(it.split_whitespace().next()?).ok()); let meta = CargoWorkspace::fetch_metadata( &cargo_toml, @@ -169,9 +176,9 @@ impl ProjectWorkspace { ) .with_context(|| { format!( - "Failed to read Cargo metadata from Cargo.toml file {}, {}", + "Failed to read Cargo metadata from Cargo.toml file {}, {:?}", cargo_toml.display(), - cargo_version + toolchain ) })?; let cargo = CargoWorkspace::new(meta); @@ -219,6 +226,7 @@ impl ProjectWorkspace { rustc, rustc_cfg, cfg_overrides, + toolchain, } } }; @@ -271,8 +279,8 @@ impl ProjectWorkspace { progress: &dyn Fn(String), ) -> Result<WorkspaceBuildScripts> { match self { - ProjectWorkspace::Cargo { cargo, .. } => { - WorkspaceBuildScripts::run(config, cargo, progress).with_context(|| { + ProjectWorkspace::Cargo { cargo, toolchain, .. } => { + WorkspaceBuildScripts::run(config, cargo, progress, toolchain).with_context(|| { format!("Failed to run build scripts for {}", &cargo.workspace_root().display()) }) } @@ -320,6 +328,7 @@ impl ProjectWorkspace { rustc_cfg: _, cfg_overrides: _, build_scripts, + toolchain: _, } => { cargo .packages() @@ -425,6 +434,7 @@ impl ProjectWorkspace { rustc_cfg, cfg_overrides, build_scripts, + toolchain: _, } => cargo_to_crate_graph( rustc_cfg.clone(), cfg_overrides, diff --git a/crates/rust-analyzer/src/bin/rustc_wrapper.rs b/crates/rust-analyzer/src/bin/rustc_wrapper.rs index 2f6d4706d8..38e9c7dd7e 100644 --- a/crates/rust-analyzer/src/bin/rustc_wrapper.rs +++ b/crates/rust-analyzer/src/bin/rustc_wrapper.rs @@ -17,6 +17,11 @@ pub(crate) fn run_rustc_skipping_cargo_checking( rustc_executable: OsString, args: Vec<OsString>, ) -> io::Result<ExitCode> { + // `CARGO_CFG_TARGET_ARCH` is only set by cargo when executing build scripts + // We don't want to exit out checks unconditionally with success if a build + // script tries to invoke checks themselves + // See https://github.com/rust-lang/rust-analyzer/issues/12973 for context + let not_invoked_by_build_script = std::env::var_os("CARGO_CFG_TARGET_ARCH").is_none(); let is_cargo_check = args.iter().any(|arg| { let arg = arg.to_string_lossy(); // `cargo check` invokes `rustc` with `--emit=metadata` argument. @@ -29,7 +34,7 @@ pub(crate) fn run_rustc_skipping_cargo_checking( // The default output filename is CRATE_NAME.rmeta. arg.starts_with("--emit=") && arg.contains("metadata") && !arg.contains("link") }); - if is_cargo_check { + if not_invoked_by_build_script && is_cargo_check { return Ok(ExitCode(Some(0))); } run_rustc(rustc_executable, args) diff --git a/crates/rust-analyzer/src/cli/diagnostics.rs b/crates/rust-analyzer/src/cli/diagnostics.rs index 52511ceb58..247007db0a 100644 --- a/crates/rust-analyzer/src/cli/diagnostics.rs +++ b/crates/rust-analyzer/src/cli/diagnostics.rs @@ -43,7 +43,7 @@ impl flags::Diagnostics { println!("processing crate: {}, module: {}", crate_name, _vfs.file_path(file_id)); for diagnostic in analysis .diagnostics( - &DiagnosticsConfig::default(), + &DiagnosticsConfig::test_sample(), AssistResolveStrategy::None, file_id, ) diff --git a/crates/rust-analyzer/src/cli/flags.rs b/crates/rust-analyzer/src/cli/flags.rs index 19907ebddb..080e2fb443 100644 --- a/crates/rust-analyzer/src/cli/flags.rs +++ b/crates/rust-analyzer/src/cli/flags.rs @@ -10,6 +10,10 @@ xflags::xflags! { src "./src/cli/flags.rs" /// LSP server for the Rust programming language. + /// + /// Subcommands and their flags do not provide any stability guarantees and may be removed or + /// changed without notice. Top-level flags that are not are marked as [Unstable] provide + /// backwards-compatibility and may be relied on. cmd rust-analyzer { /// Verbosity level, can be repeated multiple times. repeated -v, --verbose @@ -21,7 +25,7 @@ xflags::xflags! { /// Flush log records to the file immediately. optional --no-log-buffering - /// Wait until a debugger is attached to (requires debug build). + /// [Unstable] Wait until a debugger is attached to (requires debug build). optional --wait-dbg default cmd lsp-server { diff --git a/crates/rust-analyzer/src/config.rs b/crates/rust-analyzer/src/config.rs index ac0fdf85a7..1629c1dd32 100644 --- a/crates/rust-analyzer/src/config.rs +++ b/crates/rust-analyzer/src/config.rs @@ -881,6 +881,7 @@ impl Config { ExprFillDefaultDef::Todo => ExprFillDefaultMode::Todo, ExprFillDefaultDef::Default => ExprFillDefaultMode::Default, }, + insert_use: self.insert_use_config(), } } diff --git a/crates/rust-analyzer/src/diagnostics/to_proto.rs b/crates/rust-analyzer/src/diagnostics/to_proto.rs index cff4bd7f66..74689fd875 100644 --- a/crates/rust-analyzer/src/diagnostics/to_proto.rs +++ b/crates/rust-analyzer/src/diagnostics/to_proto.rs @@ -512,7 +512,7 @@ fn clippy_code_description(code: Option<&str>) -> Option<lsp_types::CodeDescript #[cfg(test)] #[cfg(not(windows))] mod tests { - use std::{convert::TryInto, path::Path}; + use std::path::Path; use crate::{config::Config, global_state::GlobalState}; diff --git a/crates/rust-analyzer/src/handlers.rs b/crates/rust-analyzer/src/handlers.rs index 47daa732d5..943d043bc1 100644 --- a/crates/rust-analyzer/src/handlers.rs +++ b/crates/rust-analyzer/src/handlers.rs @@ -1320,8 +1320,7 @@ pub(crate) fn publish_diagnostics( .unwrap(), }), source: Some("rust-analyzer".to_string()), - // https://github.com/rust-lang/rust-analyzer/issues/11404 - message: if !d.message.is_empty() { d.message } else { " ".to_string() }, + message: d.message, related_information: None, tags: if d.unused { Some(vec![DiagnosticTag::UNNECESSARY]) } else { None }, data: None, diff --git a/crates/rust-analyzer/src/main_loop.rs b/crates/rust-analyzer/src/main_loop.rs index b504c24878..7741999824 100644 --- a/crates/rust-analyzer/src/main_loop.rs +++ b/crates/rust-analyzer/src/main_loop.rs @@ -9,6 +9,7 @@ use std::{ use always_assert::always; use crossbeam_channel::{select, Receiver}; +use flycheck::FlycheckHandle; use ide_db::base_db::{SourceDatabase, SourceDatabaseExt, VfsPath}; use itertools::Itertools; use lsp_server::{Connection, Notification, Request}; @@ -205,81 +206,14 @@ impl GlobalState { } lsp_server::Message::Response(resp) => self.complete_request(resp), }, - Event::Task(mut task) => { + Event::Task(task) => { let _p = profile::span("GlobalState::handle_event/task"); let mut prime_caches_progress = Vec::new(); - loop { - match task { - Task::Response(response) => self.respond(response), - Task::Retry(req) => self.on_request(req), - Task::Diagnostics(diagnostics_per_file) => { - for (file_id, diagnostics) in diagnostics_per_file { - self.diagnostics.set_native_diagnostics(file_id, diagnostics) - } - } - Task::PrimeCaches(progress) => match progress { - PrimeCachesProgress::Begin => prime_caches_progress.push(progress), - PrimeCachesProgress::Report(_) => { - match prime_caches_progress.last_mut() { - Some(last @ PrimeCachesProgress::Report(_)) => { - // Coalesce subsequent update events. - *last = progress; - } - _ => prime_caches_progress.push(progress), - } - } - PrimeCachesProgress::End { .. } => prime_caches_progress.push(progress), - }, - Task::FetchWorkspace(progress) => { - let (state, msg) = match progress { - ProjectWorkspaceProgress::Begin => (Progress::Begin, None), - ProjectWorkspaceProgress::Report(msg) => { - (Progress::Report, Some(msg)) - } - ProjectWorkspaceProgress::End(workspaces) => { - self.fetch_workspaces_queue.op_completed(workspaces); - let old = Arc::clone(&self.workspaces); - self.switch_workspaces("fetched workspace".to_string()); - let workspaces_updated = !Arc::ptr_eq(&old, &self.workspaces); - - if self.config.run_build_scripts() && workspaces_updated { - self.fetch_build_data_queue - .request_op(format!("workspace updated")); - } - - (Progress::End, None) - } - }; - - self.report_progress("Fetching", state, msg, None); - } - Task::FetchBuildData(progress) => { - let (state, msg) = match progress { - BuildDataProgress::Begin => (Some(Progress::Begin), None), - BuildDataProgress::Report(msg) => { - (Some(Progress::Report), Some(msg)) - } - BuildDataProgress::End(build_data_result) => { - self.fetch_build_data_queue.op_completed(build_data_result); - - self.switch_workspaces("fetched build data".to_string()); - - (Some(Progress::End), None) - } - }; - - if let Some(state) = state { - self.report_progress("Loading", state, msg, None); - } - } - } - - // Coalesce multiple task events into one loop turn - task = match self.task_pool.receiver.try_recv() { - Ok(task) => task, - Err(_) => break, - }; + self.handle_task(&mut prime_caches_progress, task); + // Coalesce multiple task events into one loop turn + while let Ok(task) = self.task_pool.receiver.try_recv() { + self.handle_task(&mut prime_caches_progress, task); } for progress in prime_caches_progress { @@ -326,119 +260,20 @@ impl GlobalState { self.report_progress("Indexing", state, message, Some(fraction)); } } - Event::Vfs(mut task) => { + Event::Vfs(message) => { let _p = profile::span("GlobalState::handle_event/vfs"); - loop { - match task { - vfs::loader::Message::Loaded { files } => { - let vfs = &mut self.vfs.write().0; - for (path, contents) in files { - let path = VfsPath::from(path); - if !self.mem_docs.contains(&path) { - vfs.set_file_contents(path, contents); - } - } - } - vfs::loader::Message::Progress { n_total, n_done, config_version } => { - always!(config_version <= self.vfs_config_version); - - self.vfs_progress_config_version = config_version; - self.vfs_progress_n_total = n_total; - self.vfs_progress_n_done = n_done; - - let state = if n_done == 0 { - Progress::Begin - } else if n_done < n_total { - Progress::Report - } else { - assert_eq!(n_done, n_total); - Progress::End - }; - self.report_progress( - "Roots Scanned", - state, - Some(format!("{}/{}", n_done, n_total)), - Some(Progress::fraction(n_done, n_total)), - ) - } - } - // Coalesce many VFS event into a single loop turn - task = match self.loader.receiver.try_recv() { - Ok(task) => task, - Err(_) => break, - } + self.handle_vfs_msg(message); + // Coalesce many VFS event into a single loop turn + while let Ok(message) = self.loader.receiver.try_recv() { + self.handle_vfs_msg(message); } } - Event::Flycheck(mut task) => { + Event::Flycheck(message) => { let _p = profile::span("GlobalState::handle_event/flycheck"); - loop { - match task { - flycheck::Message::AddDiagnostic { id, workspace_root, diagnostic } => { - let snap = self.snapshot(); - let diagnostics = - crate::diagnostics::to_proto::map_rust_diagnostic_to_lsp( - &self.config.diagnostics_map(), - &diagnostic, - &workspace_root, - &snap, - ); - for diag in diagnostics { - match url_to_file_id(&self.vfs.read().0, &diag.url) { - Ok(file_id) => self.diagnostics.add_check_diagnostic( - id, - file_id, - diag.diagnostic, - diag.fix, - ), - Err(err) => { - tracing::error!( - "File with cargo diagnostic not found in VFS: {}", - err - ); - } - }; - } - } - - flycheck::Message::Progress { id, progress } => { - let (state, message) = match progress { - flycheck::Progress::DidStart => { - self.diagnostics.clear_check(id); - (Progress::Begin, None) - } - flycheck::Progress::DidCheckCrate(target) => { - (Progress::Report, Some(target)) - } - flycheck::Progress::DidCancel => (Progress::End, None), - flycheck::Progress::DidFinish(result) => { - if let Err(err) = result { - self.show_and_log_error( - "cargo check failed".to_string(), - Some(err.to_string()), - ); - } - (Progress::End, None) - } - }; - - // When we're running multiple flychecks, we have to include a disambiguator in - // the title, or the editor complains. Note that this is a user-facing string. - let title = if self.flycheck.len() == 1 { - match self.config.flycheck() { - Some(config) => format!("{}", config), - None => "cargo check".to_string(), - } - } else { - format!("cargo check (#{})", id + 1) - }; - self.report_progress(&title, state, message, None); - } - } - // Coalesce many flycheck updates into a single loop turn - task = match self.flycheck_receiver.try_recv() { - Ok(task) => task, - Err(_) => break, - } + self.handle_flycheck_msg(message); + // Coalesce many flycheck updates into a single loop turn + while let Ok(message) = self.flycheck_receiver.try_recv() { + self.handle_flycheck_msg(message); } } } @@ -447,13 +282,13 @@ impl GlobalState { let memdocs_added_or_removed = self.mem_docs.take_changes(); if self.is_quiescent() { - if !was_quiescent - && !self.fetch_workspaces_queue.op_requested() - && !self.fetch_build_data_queue.op_requested() - { - for flycheck in &self.flycheck { - flycheck.update(); - } + let became_quiescent = !(was_quiescent + || self.fetch_workspaces_queue.op_requested() + || self.fetch_build_data_queue.op_requested()); + + if became_quiescent { + // Project has loaded properly, kick off initial flycheck + self.flycheck.iter().for_each(FlycheckHandle::update); if self.config.prefill_caches() { self.prime_caches_queue.request_op("became quiescent".to_string()); } @@ -492,28 +327,15 @@ impl GlobalState { continue; } - let url = file_id_to_url(&self.vfs.read().0, file_id); - let mut diagnostics = + let uri = file_id_to_url(&self.vfs.read().0, file_id); + let diagnostics = self.diagnostics.diagnostics_for(file_id).cloned().collect::<Vec<_>>(); - // https://github.com/rust-lang/rust-analyzer/issues/11404 - for d in &mut diagnostics { - if d.message.is_empty() { - d.message = " ".to_string(); - } - if let Some(rds) = d.related_information.as_mut() { - for rd in rds { - if rd.message.is_empty() { - rd.message = " ".to_string(); - } - } - } - } - let version = from_proto::vfs_path(&url) + let version = from_proto::vfs_path(&uri) .map(|path| self.mem_docs.get(&path).map(|it| it.version)) .unwrap_or_default(); self.send_notification::<lsp_types::notification::PublishDiagnostics>( - lsp_types::PublishDiagnosticsParams { uri: url, diagnostics, version }, + lsp_types::PublishDiagnosticsParams { uri, diagnostics, version }, ); } } @@ -575,11 +397,171 @@ impl GlobalState { Ok(()) } + fn handle_task(&mut self, prime_caches_progress: &mut Vec<PrimeCachesProgress>, task: Task) { + match task { + Task::Response(response) => self.respond(response), + Task::Retry(req) => self.on_request(req), + Task::Diagnostics(diagnostics_per_file) => { + for (file_id, diagnostics) in diagnostics_per_file { + self.diagnostics.set_native_diagnostics(file_id, diagnostics) + } + } + Task::PrimeCaches(progress) => match progress { + PrimeCachesProgress::Begin => prime_caches_progress.push(progress), + PrimeCachesProgress::Report(_) => { + match prime_caches_progress.last_mut() { + Some(last @ PrimeCachesProgress::Report(_)) => { + // Coalesce subsequent update events. + *last = progress; + } + _ => prime_caches_progress.push(progress), + } + } + PrimeCachesProgress::End { .. } => prime_caches_progress.push(progress), + }, + Task::FetchWorkspace(progress) => { + let (state, msg) = match progress { + ProjectWorkspaceProgress::Begin => (Progress::Begin, None), + ProjectWorkspaceProgress::Report(msg) => (Progress::Report, Some(msg)), + ProjectWorkspaceProgress::End(workspaces) => { + self.fetch_workspaces_queue.op_completed(workspaces); + + let old = Arc::clone(&self.workspaces); + self.switch_workspaces("fetched workspace".to_string()); + let workspaces_updated = !Arc::ptr_eq(&old, &self.workspaces); + + if self.config.run_build_scripts() && workspaces_updated { + self.fetch_build_data_queue.request_op(format!("workspace updated")); + } + + (Progress::End, None) + } + }; + + self.report_progress("Fetching", state, msg, None); + } + Task::FetchBuildData(progress) => { + let (state, msg) = match progress { + BuildDataProgress::Begin => (Some(Progress::Begin), None), + BuildDataProgress::Report(msg) => (Some(Progress::Report), Some(msg)), + BuildDataProgress::End(build_data_result) => { + self.fetch_build_data_queue.op_completed(build_data_result); + + self.switch_workspaces("fetched build data".to_string()); + + (Some(Progress::End), None) + } + }; + + if let Some(state) = state { + self.report_progress("Loading", state, msg, None); + } + } + } + } + + fn handle_vfs_msg(&mut self, message: vfs::loader::Message) { + match message { + vfs::loader::Message::Loaded { files } => { + let vfs = &mut self.vfs.write().0; + for (path, contents) in files { + let path = VfsPath::from(path); + if !self.mem_docs.contains(&path) { + vfs.set_file_contents(path, contents); + } + } + } + vfs::loader::Message::Progress { n_total, n_done, config_version } => { + always!(config_version <= self.vfs_config_version); + + self.vfs_progress_config_version = config_version; + self.vfs_progress_n_total = n_total; + self.vfs_progress_n_done = n_done; + + let state = if n_done == 0 { + Progress::Begin + } else if n_done < n_total { + Progress::Report + } else { + assert_eq!(n_done, n_total); + Progress::End + }; + self.report_progress( + "Roots Scanned", + state, + Some(format!("{}/{}", n_done, n_total)), + Some(Progress::fraction(n_done, n_total)), + ) + } + } + } + + fn handle_flycheck_msg(&mut self, message: flycheck::Message) { + match message { + flycheck::Message::AddDiagnostic { id, workspace_root, diagnostic } => { + let snap = self.snapshot(); + let diagnostics = crate::diagnostics::to_proto::map_rust_diagnostic_to_lsp( + &self.config.diagnostics_map(), + &diagnostic, + &workspace_root, + &snap, + ); + for diag in diagnostics { + match url_to_file_id(&self.vfs.read().0, &diag.url) { + Ok(file_id) => self.diagnostics.add_check_diagnostic( + id, + file_id, + diag.diagnostic, + diag.fix, + ), + Err(err) => { + tracing::error!("File with cargo diagnostic not found in VFS: {}", err); + } + }; + } + } + + flycheck::Message::Progress { id, progress } => { + let (state, message) = match progress { + flycheck::Progress::DidStart => { + self.diagnostics.clear_check(id); + (Progress::Begin, None) + } + flycheck::Progress::DidCheckCrate(target) => (Progress::Report, Some(target)), + flycheck::Progress::DidCancel => (Progress::End, None), + flycheck::Progress::DidFinish(result) => { + if let Err(err) = result { + self.show_and_log_error( + "cargo check failed".to_string(), + Some(err.to_string()), + ); + } + (Progress::End, None) + } + }; + + // When we're running multiple flychecks, we have to include a disambiguator in + // the title, or the editor complains. Note that this is a user-facing string. + let title = if self.flycheck.len() == 1 { + match self.config.flycheck() { + Some(config) => format!("{}", config), + None => "cargo check".to_string(), + } + } else { + format!("cargo check (#{})", id + 1) + }; + self.report_progress(&title, state, message, None); + } + } + } + + /// Registers and handles a request. This should only be called once per incoming request. fn on_new_request(&mut self, request_received: Instant, req: Request) { self.register_request(&req, request_received); self.on_request(req); } + /// Handles a request. fn on_request(&mut self, req: Request) { if self.shutdown_requested { self.respond(lsp_server::Response::new_err( @@ -670,6 +652,7 @@ impl GlobalState { .finish(); } + /// Handles an incoming notification. fn on_notification(&mut self, not: Notification) -> Result<()> { NotificationDispatcher { not: Some(not), global_state: self } .on::<lsp_types::notification::Cancel>(|this, params| { @@ -743,6 +726,8 @@ impl GlobalState { let mut updated = false; if let Ok(vfs_path) = from_proto::vfs_path(¶ms.text_document.uri) { let (vfs, _) = &*this.vfs.read(); + + // Trigger flychecks for all workspaces that depend on the saved file if let Some(file_id) = vfs.file_id(&vfs_path) { let analysis = this.analysis_host.analysis(); // Crates containing or depending on the saved file @@ -800,6 +785,8 @@ impl GlobalState { } } } + + // Re-fetch workspaces if a workspace related file has changed if let Some(abs_path) = vfs_path.as_path() { if reload::should_refresh_for_change(&abs_path, ChangeKind::Modify) { this.fetch_workspaces_queue @@ -807,6 +794,8 @@ impl GlobalState { } } } + + // No specific flycheck was triggered, so let's trigger all of them. if !updated { for flycheck in &this.flycheck { flycheck.update(); diff --git a/crates/rust-analyzer/src/reload.rs b/crates/rust-analyzer/src/reload.rs index 49ccad71a1..ceb2a6d703 100644 --- a/crates/rust-analyzer/src/reload.rs +++ b/crates/rust-analyzer/src/reload.rs @@ -219,6 +219,7 @@ impl GlobalState { cfg_overrides, build_scripts: _, + toolchain: _, } => Some((cargo, sysroot, rustc, rustc_cfg, cfg_overrides)), _ => None, }; diff --git a/crates/rust-analyzer/src/to_proto.rs b/crates/rust-analyzer/src/to_proto.rs index 7f4fa57fa1..e7115b0732 100644 --- a/crates/rust-analyzer/src/to_proto.rs +++ b/crates/rust-analyzer/src/to_proto.rs @@ -1386,7 +1386,7 @@ fn main() { #[test] #[cfg(target_os = "windows")] fn test_lowercase_drive_letter() { - use std::{convert::TryInto, path::Path}; + use std::path::Path; let url = url_from_abs_path(Path::new("C:\\Test").try_into().unwrap()); assert_eq!(url.to_string(), "file:///c:/Test"); diff --git a/crates/syntax/src/ast/operators.rs b/crates/syntax/src/ast/operators.rs index a687ba0b77..8f7b3fb600 100644 --- a/crates/syntax/src/ast/operators.rs +++ b/crates/syntax/src/ast/operators.rs @@ -111,10 +111,10 @@ impl fmt::Display for BinaryOp { BinaryOp::ArithOp(op) => fmt::Display::fmt(op, f), BinaryOp::CmpOp(op) => fmt::Display::fmt(op, f), BinaryOp::Assignment { op } => { - f.write_str("=")?; if let Some(op) = op { fmt::Display::fmt(op, f)?; } + f.write_str("=")?; Ok(()) } } diff --git a/crates/syntax/src/fuzz.rs b/crates/syntax/src/fuzz.rs index 256999fe09..7c7a60d629 100644 --- a/crates/syntax/src/fuzz.rs +++ b/crates/syntax/src/fuzz.rs @@ -2,10 +2,7 @@ //! //! We don't normally run fuzzying, so this is hopelessly bitrotten :( -use std::{ - convert::TryInto, - str::{self, FromStr}, -}; +use std::str::{self, FromStr}; use text_edit::Indel; diff --git a/editors/code/package-lock.json b/editors/code/package-lock.json index 0436681b1a..3ff4b6897a 100644 --- a/editors/code/package-lock.json +++ b/editors/code/package-lock.json @@ -1,8 +1,3956 @@ { "name": "rust-analyzer", "version": "0.5.0-dev", - "lockfileVersion": 1, + "lockfileVersion": 2, "requires": true, + "packages": { + "": { + "name": "rust-analyzer", + "version": "0.5.0-dev", + "license": "MIT OR Apache-2.0", + "dependencies": { + "d3": "^7.6.1", + "d3-graphviz": "^4.1.1", + "vscode-languageclient": "^8.0.0-next.14" + }, + "devDependencies": { + "@types/node": "~16.11.7", + "@types/vscode": "~1.66.0", + "@typescript-eslint/eslint-plugin": "^5.30.5", + "@typescript-eslint/parser": "^5.30.5", + "@vscode/test-electron": "^2.1.5", + "cross-env": "^7.0.3", + "esbuild": "^0.14.48", + "eslint": 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"https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.3.2.tgz", "integrity": "sha512-rq9s+JNhf0IChjtDXxllJ7g41oZk5SlXtp0LHwyA5cejwn7vKmKp4pPri6YEePv2PU65sAsegbXtIinmDFDXgQ==", - "dev": true + "dev": true, + "requires": {} }, "agent-base": { "version": "6.0.2", @@ -1278,7 +5227,8 @@ "version": "8.5.0", "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-8.5.0.tgz", "integrity": "sha512-obmWKLUNCnhtQRKc+tmnYuQl0pFU1ibYJQ5BGhTVB08bHe9wC8qUeG7c08dj9XX+AuPj1YSGSQIHl1pnDHZR0Q==", - "dev": true + "dev": true, + "requires": {} }, "eslint-scope": { "version": "5.1.1", @@ -2348,6 +6298,15 @@ "integrity": "sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==", "dev": true }, + "string_decoder": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz", + "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==", + "dev": true, + "requires": { + "safe-buffer": "~5.1.0" + } + }, "string-width": { "version": "4.2.3", "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz", @@ -2358,15 +6317,6 @@ "strip-ansi": "^6.0.1" } }, - "string_decoder": { - "version": "1.1.1", - "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz", - "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==", - "dev": true, - "requires": { - "safe-buffer": "~5.1.0" - } - }, "strip-ansi": { "version": "6.0.1", "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz", diff --git a/editors/code/src/client.ts b/editors/code/src/client.ts index 8a2dea6b35..27ab31db8d 100644 --- a/editors/code/src/client.ts +++ b/editors/code/src/client.ts @@ -105,6 +105,22 @@ export async function createClient( traceOutputChannel: traceOutputChannel(), outputChannel: outputChannel(), middleware: { + async handleDiagnostics(uri, diagnostics, next) { + // Workaround for https://github.com/microsoft/vscode/issues/155531 + for (const diagnostic of diagnostics) { + if (!diagnostic.message) { + diagnostic.message = " "; + } + if (diagnostic.relatedInformation) { + for (const relatedInformation of diagnostic.relatedInformation) { + if (!relatedInformation.message) { + relatedInformation.message = " "; + } + } + } + } + next(uri, diagnostics); + }, async provideHover( document: vscode.TextDocument, position: vscode.Position, diff --git a/editors/code/src/commands.ts b/editors/code/src/commands.ts index bf55329ca1..1b793bb0b1 100644 --- a/editors/code/src/commands.ts +++ b/editors/code/src/commands.ts @@ -326,8 +326,22 @@ export function toggleInlayHints(_ctx: Ctx): Cmd { const config = vscode.workspace.getConfiguration("editor.inlayHints", { languageId: "rust", }); - const value = !config.get("enabled"); - await config.update("enabled", value, vscode.ConfigurationTarget.Global); + + const value = config.get("enabled"); + let stringValue; + if (typeof value === "string") { + stringValue = value; + } else { + stringValue = value ? "on" : "off"; + } + const nextValues: Record<string, string> = { + on: "off", + off: "on", + onUnlessPressed: "offUnlessPressed", + offUnlessPressed: "onUnlessPressed", + }; + const nextValue = nextValues[stringValue] ?? "on"; + await config.update("enabled", nextValue, vscode.ConfigurationTarget.Global); }; } diff --git a/lib/la-arena/src/lib.rs b/lib/la-arena/src/lib.rs index a3fe59e946..50e8d06b66 100644 --- a/lib/la-arena/src/lib.rs +++ b/lib/la-arena/src/lib.rs @@ -6,7 +6,6 @@ use std::{ fmt, hash::{Hash, Hasher}, - iter::FromIterator, marker::PhantomData, ops::{Index, IndexMut, Range, RangeInclusive}, }; |