Unnamed repository; edit this file 'description' to name the repository.
33 files changed, 815 insertions, 365 deletions
diff --git a/Cargo.lock b/Cargo.lock index 6d8a3eeb73..6ce455424a 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -1174,6 +1174,7 @@ dependencies = [ "limit", "rustc-ap-rustc_lexer", "sourcegen", + "stdx", ] [[package]] diff --git a/crates/hir-def/src/macro_expansion_tests/mbe.rs b/crates/hir-def/src/macro_expansion_tests/mbe.rs index 49bbc64bff..7a3e8c3b05 100644 --- a/crates/hir-def/src/macro_expansion_tests/mbe.rs +++ b/crates/hir-def/src/macro_expansion_tests/mbe.rs @@ -1476,7 +1476,7 @@ macro_rules! m { /* parse error: expected identifier */ /* parse error: expected SEMICOLON */ /* parse error: expected SEMICOLON */ -/* parse error: expected expression */ +/* parse error: expected expression, item or let statement */ fn f() { K::(C("0")); } 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 d2505e7caf..8358a46f0a 100644 --- a/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs +++ b/crates/hir-def/src/macro_expansion_tests/mbe/regression.rs @@ -830,8 +830,7 @@ macro_rules! rgb_color { /* parse error: expected COMMA */ /* parse error: expected R_ANGLE */ /* parse error: expected SEMICOLON */ -/* parse error: expected SEMICOLON */ -/* parse error: expected expression */ +/* parse error: expected expression, item or let statement */ pub fn new() { let _ = 0as u32<<(8+8); } @@ -848,21 +847,21 @@ pub fn new() { // [email protected] "{" // [email protected] "let" // [email protected] "_" // [email protected] "=" // [email protected] "0" // [email protected] "as" // [email protected] "u32" // [email protected] "<" @@ -877,9 +876,9 @@ pub fn new() { // [email protected] "8" // [email protected] "+" -// [email protected] "8" +// [email protected] "8" // [email protected] ")" // [email protected] ";" diff --git a/crates/ide-completion/src/context/analysis.rs b/crates/ide-completion/src/context/analysis.rs index 4c66f95903..b5eb253d03 100644 --- a/crates/ide-completion/src/context/analysis.rs +++ b/crates/ide-completion/src/context/analysis.rs @@ -668,8 +668,15 @@ fn classify_name_ref( }; let after_if_expr = |node: SyntaxNode| { let prev_expr = (|| { + let node = match node.parent().and_then(ast::ExprStmt::cast) { + Some(stmt) => stmt.syntax().clone(), + None => node, + }; let prev_sibling = non_trivia_sibling(node.into(), Direction::Prev)?.into_node()?; - ast::ExprStmt::cast(prev_sibling)?.expr() + + ast::ExprStmt::cast(prev_sibling.clone()) + .and_then(|it| it.expr()) + .or_else(|| ast::Expr::cast(prev_sibling)) })(); matches!(prev_expr, Some(ast::Expr::IfExpr(_))) }; diff --git a/crates/ide-completion/src/tests/expression.rs b/crates/ide-completion/src/tests/expression.rs index 043f552bd8..c1c6a689eb 100644 --- a/crates/ide-completion/src/tests/expression.rs +++ b/crates/ide-completion/src/tests/expression.rs @@ -745,3 +745,255 @@ fn return_value_no_block() { r#"fn f() -> i32 { match () { () => return $0 } }"#, ); } + +#[test] +fn else_completion_after_if() { + check_empty( + r#" +fn foo() { if foo {} $0 } +"#, + expect![[r#" + fn foo() fn() + bt u32 + kw const + kw crate:: + kw else + kw else if + kw enum + kw extern + kw false + kw fn + kw for + kw if + kw if let + kw impl + kw let + kw loop + kw match + kw mod + kw return + kw self:: + kw static + kw struct + kw trait + kw true + kw type + kw union + kw unsafe + kw use + kw while + kw while let + sn macro_rules + sn pd + sn ppd + "#]], + ); + check_empty( + r#" +fn foo() { if foo {} el$0 } +"#, + expect![[r#" + fn foo() fn() + bt u32 + kw const + kw crate:: + kw else + kw else if + kw enum + kw extern + kw false + kw fn + kw for + kw if + kw if let + kw impl + kw let + kw loop + kw match + kw mod + kw return + kw self:: + kw static + kw struct + kw trait + kw true + kw type + kw union + kw unsafe + kw use + kw while + kw while let + sn macro_rules + sn pd + sn ppd + "#]], + ); + check_empty( + r#" +fn foo() { bar(if foo {} $0) } +"#, + expect![[r#" + fn foo() fn() + bt u32 + kw crate:: + kw else + kw else if + kw false + kw for + kw if + kw if let + kw loop + kw match + kw return + kw self:: + kw true + kw unsafe + kw while + kw while let + "#]], + ); + check_empty( + r#" +fn foo() { bar(if foo {} el$0) } +"#, + expect![[r#" + fn foo() fn() + bt u32 + kw crate:: + kw else + kw else if + kw false + kw for + kw if + kw if let + kw loop + kw match + kw return + kw self:: + kw true + kw unsafe + kw while + kw while let + "#]], + ); + check_empty( + r#" +fn foo() { if foo {} $0 let x = 92; } +"#, + expect![[r#" + fn foo() fn() + bt u32 + kw const + kw crate:: + kw else + kw else if + kw enum + kw extern + kw false + kw fn + kw for + kw if + kw if let + kw impl + kw let + kw loop + kw match + kw mod + kw return + kw self:: + kw static + kw struct + kw trait + kw true + kw type + kw union + kw unsafe + kw use + kw while + kw while let + sn macro_rules + sn pd + sn ppd + "#]], + ); + check_empty( + r#" +fn foo() { if foo {} el$0 let x = 92; } +"#, + expect![[r#" + fn foo() fn() + bt u32 + kw const + kw crate:: + kw else + kw else if + kw enum + kw extern + kw false + kw fn + kw for + kw if + kw if let + kw impl + kw let + kw loop + kw match + kw mod + kw return + kw self:: + kw static + kw struct + kw trait + kw true + kw type + kw union + kw unsafe + kw use + kw while + kw while let + sn macro_rules + sn pd + sn ppd + "#]], + ); + check_empty( + r#" +fn foo() { if foo {} el$0 { let x = 92; } } +"#, + expect![[r#" + fn foo() fn() + bt u32 + kw const + kw crate:: + kw else + kw else if + kw enum + kw extern + kw false + kw fn + kw for + kw if + kw if let + kw impl + kw let + kw loop + kw match + kw mod + kw return + kw self:: + kw static + kw struct + kw trait + kw true + kw type + kw union + kw unsafe + kw use + kw while + kw while let + sn macro_rules + sn pd + sn ppd + "#]], + ); +} diff --git a/crates/ide-completion/src/tests/special.rs b/crates/ide-completion/src/tests/special.rs index 6052b06232..cb71c7b2bd 100644 --- a/crates/ide-completion/src/tests/special.rs +++ b/crates/ide-completion/src/tests/special.rs @@ -2,13 +2,20 @@ use expect_test::{expect, Expect}; -use crate::tests::{check_edit, completion_list_no_kw, completion_list_with_trigger_character}; +use crate::tests::{ + check_edit, completion_list, completion_list_no_kw, completion_list_with_trigger_character, +}; -fn check(ra_fixture: &str, expect: Expect) { +fn check_no_kw(ra_fixture: &str, expect: Expect) { let actual = completion_list_no_kw(ra_fixture); expect.assert_eq(&actual) } +fn check(ra_fixture: &str, expect: Expect) { + let actual = completion_list(ra_fixture); + expect.assert_eq(&actual) +} + pub(crate) fn check_with_trigger_character( ra_fixture: &str, trigger_character: Option<char>, @@ -59,7 +66,7 @@ fn _alpha() {} #[test] fn completes_prelude() { - check( + check_no_kw( r#" //- /main.rs edition:2018 crate:main deps:std fn foo() { let x: $0 } @@ -81,7 +88,7 @@ pub mod prelude { #[test] fn completes_prelude_macros() { - check( + check_no_kw( r#" //- /main.rs edition:2018 crate:main deps:std fn f() {$0} @@ -110,7 +117,7 @@ mod macros { #[test] fn completes_std_prelude_if_core_is_defined() { - check( + check_no_kw( r#" //- /main.rs crate:main deps:core,std fn foo() { let x: $0 } @@ -140,7 +147,7 @@ pub mod prelude { #[test] fn respects_doc_hidden() { - check( + check_no_kw( r#" //- /lib.rs crate:lib deps:std fn f() { @@ -168,7 +175,7 @@ pub mod prelude { #[test] fn respects_doc_hidden_in_assoc_item_list() { - check( + check_no_kw( r#" //- /lib.rs crate:lib deps:std struct S; @@ -195,7 +202,7 @@ pub mod prelude { #[test] fn associated_item_visibility() { - check( + check_no_kw( r#" //- /lib.rs crate:lib new_source_root:library pub struct S; @@ -222,7 +229,7 @@ fn foo() { let _ = lib::S::$0 } #[test] fn completes_union_associated_method() { - check( + check_no_kw( r#" union U {}; impl U { fn m() { } } @@ -237,7 +244,7 @@ fn foo() { let _ = U::$0 } #[test] fn completes_trait_associated_method_1() { - check( + check_no_kw( r#" trait Trait { fn m(); } @@ -251,7 +258,7 @@ fn foo() { let _ = Trait::$0 } #[test] fn completes_trait_associated_method_2() { - check( + check_no_kw( r#" trait Trait { fn m(); } @@ -268,7 +275,7 @@ fn foo() { let _ = S::$0 } #[test] fn completes_trait_associated_method_3() { - check( + check_no_kw( r#" trait Trait { fn m(); } @@ -285,7 +292,7 @@ fn foo() { let _ = <S as Trait>::$0 } #[test] fn completes_ty_param_assoc_ty() { - check( + check_no_kw( r#" trait Super { type Ty; @@ -318,7 +325,7 @@ fn foo<T: Sub>() { T::$0 } #[test] fn completes_self_param_assoc_ty() { - check( + check_no_kw( r#" trait Super { type Ty; @@ -358,7 +365,7 @@ impl<T> Sub for Wrap<T> { #[test] fn completes_type_alias() { - check( + check_no_kw( r#" struct S; impl S { fn foo() {} } @@ -376,7 +383,7 @@ fn main() { T::$0; } #[test] fn completes_qualified_macros() { - check( + check_no_kw( r#" #[macro_export] macro_rules! foo { () => {} } @@ -392,7 +399,7 @@ fn main() { let _ = crate::$0 } #[test] fn does_not_complete_non_fn_macros() { - check( + check_no_kw( r#" mod m { #[rustc_builtin_macro] @@ -403,7 +410,7 @@ fn f() {m::$0} "#, expect![[r#""#]], ); - check( + check_no_kw( r#" mod m { #[rustc_builtin_macro] @@ -418,7 +425,7 @@ fn f() {m::$0} #[test] fn completes_reexported_items_under_correct_name() { - check( + check_no_kw( r#" fn foo() { self::m::$0 } @@ -475,7 +482,7 @@ mod p { #[test] fn completes_in_simple_macro_call() { - check( + check_no_kw( r#" macro_rules! m { ($e:expr) => { $e } } fn main() { m!(self::f$0); } @@ -490,7 +497,7 @@ fn foo() {} #[test] fn function_mod_share_name() { - check( + check_no_kw( r#" fn foo() { self::m::$0 } @@ -508,7 +515,7 @@ mod m { #[test] fn completes_hashmap_new() { - check( + check_no_kw( r#" struct RandomState; struct HashMap<K, V, S = RandomState> {} @@ -529,7 +536,7 @@ fn foo() { #[test] fn completes_variant_through_self() { cov_mark::check!(completes_variant_through_self); - check( + check_no_kw( r#" enum Foo { Bar, @@ -552,7 +559,7 @@ impl Foo { #[test] fn completes_non_exhaustive_variant_within_the_defining_crate() { - check( + check_no_kw( r#" enum Foo { #[non_exhaustive] @@ -570,7 +577,7 @@ fn foo(self) { "#]], ); - check( + check_no_kw( r#" //- /main.rs crate:main deps:e fn foo(self) { @@ -593,7 +600,7 @@ enum Foo { #[test] fn completes_primitive_assoc_const() { cov_mark::check!(completes_primitive_assoc_const); - check( + check_no_kw( r#" //- /lib.rs crate:lib deps:core fn f() { @@ -618,7 +625,7 @@ impl u8 { #[test] fn completes_variant_through_alias() { cov_mark::check!(completes_variant_through_alias); - check( + check_no_kw( r#" enum Foo { Bar @@ -636,7 +643,7 @@ fn main() { #[test] fn respects_doc_hidden2() { - check( + check_no_kw( r#" //- /lib.rs crate:lib deps:dep fn f() { @@ -665,7 +672,7 @@ pub mod m {} #[test] fn type_anchor_empty() { - check( + check_no_kw( r#" trait Foo { fn foo() -> Self; @@ -688,7 +695,7 @@ fn bar() -> Bar { #[test] fn type_anchor_type() { - check( + check_no_kw( r#" trait Foo { fn foo() -> Self; @@ -715,7 +722,7 @@ fn bar() -> Bar { #[test] fn type_anchor_type_trait() { - check( + check_no_kw( r#" trait Foo { fn foo() -> Self; @@ -741,7 +748,7 @@ fn bar() -> Bar { #[test] fn completes_fn_in_pub_trait_generated_by_macro() { - check( + check_no_kw( r#" mod other_mod { macro_rules! make_method { @@ -775,7 +782,7 @@ fn main() { #[test] fn completes_fn_in_pub_trait_generated_by_recursive_macro() { - check( + check_no_kw( r#" mod other_mod { macro_rules! make_method { @@ -815,7 +822,7 @@ fn main() { #[test] fn completes_const_in_pub_trait_generated_by_macro() { - check( + check_no_kw( r#" mod other_mod { macro_rules! make_const { @@ -847,7 +854,7 @@ fn main() { #[test] fn completes_locals_from_macros() { - check( + check_no_kw( r#" macro_rules! x { @@ -875,7 +882,7 @@ fn main() { #[test] fn regression_12644() { - check( + check_no_kw( r#" macro_rules! __rust_force_expr { ($e:expr) => { @@ -974,7 +981,7 @@ fn foo { crate:::$0 } "#, expect![""], ); - check( + check_no_kw( r#" fn foo { crate::::$0 } "#, diff --git a/crates/ide-db/src/active_parameter.rs b/crates/ide-db/src/active_parameter.rs index 7109c6fd18..2b6b60547b 100644 --- a/crates/ide-db/src/active_parameter.rs +++ b/crates/ide-db/src/active_parameter.rs @@ -2,9 +2,10 @@ use either::Either; use hir::{Semantics, Type}; +use parser::T; use syntax::{ ast::{self, HasArgList, HasName}, - AstNode, SyntaxToken, + match_ast, AstNode, NodeOrToken, SyntaxToken, }; use crate::RootDatabase; @@ -58,7 +59,7 @@ pub fn callable_for_node( calling_node: &ast::CallableExpr, token: &SyntaxToken, ) -> Option<(hir::Callable, Option<usize>)> { - let callable = match &calling_node { + let callable = match calling_node { ast::CallableExpr::Call(call) => { let expr = call.expr()?; sema.type_of_expr(&expr)?.adjusted().as_callable(sema.db) @@ -66,13 +67,78 @@ pub fn callable_for_node( ast::CallableExpr::MethodCall(call) => sema.resolve_method_call_as_callable(call), }?; let active_param = if let Some(arg_list) = calling_node.arg_list() { - let param = arg_list - .args() - .take_while(|arg| arg.syntax().text_range().end() <= token.text_range().start()) - .count(); - Some(param) + Some( + arg_list + .syntax() + .children_with_tokens() + .filter_map(NodeOrToken::into_token) + .filter(|t| t.kind() == T![,]) + .take_while(|t| t.text_range().start() <= token.text_range().start()) + .count(), + ) } else { None }; Some((callable, active_param)) } + +pub fn generic_def_for_node( + sema: &Semantics<'_, RootDatabase>, + generic_arg_list: &ast::GenericArgList, + token: &SyntaxToken, +) -> Option<(hir::GenericDef, usize, bool)> { + let parent = generic_arg_list.syntax().parent()?; + let def = match_ast! { + match parent { + ast::PathSegment(ps) => { + let res = sema.resolve_path(&ps.parent_path())?; + let generic_def: hir::GenericDef = match res { + hir::PathResolution::Def(hir::ModuleDef::Adt(it)) => it.into(), + hir::PathResolution::Def(hir::ModuleDef::Function(it)) => it.into(), + hir::PathResolution::Def(hir::ModuleDef::Trait(it)) => it.into(), + hir::PathResolution::Def(hir::ModuleDef::TypeAlias(it)) => it.into(), + hir::PathResolution::Def(hir::ModuleDef::Variant(it)) => it.into(), + hir::PathResolution::Def(hir::ModuleDef::BuiltinType(_)) + | hir::PathResolution::Def(hir::ModuleDef::Const(_)) + | hir::PathResolution::Def(hir::ModuleDef::Macro(_)) + | hir::PathResolution::Def(hir::ModuleDef::Module(_)) + | hir::PathResolution::Def(hir::ModuleDef::Static(_)) => return None, + hir::PathResolution::BuiltinAttr(_) + | hir::PathResolution::ToolModule(_) + | hir::PathResolution::Local(_) + | hir::PathResolution::TypeParam(_) + | hir::PathResolution::ConstParam(_) + | hir::PathResolution::SelfType(_) + | hir::PathResolution::DeriveHelper(_) => return None, + }; + + generic_def + }, + ast::AssocTypeArg(_) => { + // FIXME: We don't record the resolutions for this anywhere atm + return None; + }, + ast::MethodCallExpr(mcall) => { + // recv.method::<$0>() + let method = sema.resolve_method_call(&mcall)?; + method.into() + }, + _ => return None, + } + }; + + let active_param = generic_arg_list + .syntax() + .children_with_tokens() + .filter_map(NodeOrToken::into_token) + .filter(|t| t.kind() == T![,]) + .take_while(|t| t.text_range().start() <= token.text_range().start()) + .count(); + + let first_arg_is_non_lifetime = generic_arg_list + .generic_args() + .next() + .map_or(false, |arg| !matches!(arg, ast::GenericArg::LifetimeArg(_))); + + Some((def, active_param, first_arg_is_non_lifetime)) +} diff --git a/crates/ide/src/signature_help.rs b/crates/ide/src/signature_help.rs index a666562f10..f70ca55a50 100644 --- a/crates/ide/src/signature_help.rs +++ b/crates/ide/src/signature_help.rs @@ -7,12 +7,16 @@ use either::Either; use hir::{ AssocItem, GenericParam, HasAttrs, HirDisplay, ModuleDef, PathResolution, Semantics, Trait, }; -use ide_db::{active_parameter::callable_for_node, base_db::FilePosition, FxIndexMap}; +use ide_db::{ + active_parameter::{callable_for_node, generic_def_for_node}, + base_db::FilePosition, + FxIndexMap, +}; use stdx::format_to; use syntax::{ algo, ast::{self, HasArgList}, - match_ast, AstNode, Direction, SyntaxKind, SyntaxToken, TextRange, TextSize, + match_ast, AstNode, Direction, SyntaxToken, TextRange, TextSize, }; use crate::RootDatabase; @@ -105,10 +109,10 @@ pub(crate) fn signature_help(db: &RootDatabase, position: FilePosition) -> Optio // Stop at multi-line expressions, since the signature of the outer call is not very // helpful inside them. if let Some(expr) = ast::Expr::cast(node.clone()) { - if expr.syntax().text().contains_char('\n') - && expr.syntax().kind() != SyntaxKind::RECORD_EXPR + if !matches!(expr, ast::Expr::RecordExpr(..)) + && expr.syntax().text().contains_char('\n') { - return None; + break; } } } @@ -122,18 +126,16 @@ fn signature_help_for_call( token: SyntaxToken, ) -> Option<SignatureHelp> { // Find the calling expression and its NameRef - let mut node = arg_list.syntax().parent()?; + let mut nodes = arg_list.syntax().ancestors().skip(1); let calling_node = loop { - if let Some(callable) = ast::CallableExpr::cast(node.clone()) { - if callable + if let Some(callable) = ast::CallableExpr::cast(nodes.next()?) { + let inside_callable = callable .arg_list() - .map_or(false, |it| it.syntax().text_range().contains(token.text_range().start())) - { + .map_or(false, |it| it.syntax().text_range().contains(token.text_range().start())); + if inside_callable { break callable; } } - - node = node.parent()?; }; let (callable, active_parameter) = callable_for_node(sema, &calling_node, &token)?; @@ -216,59 +218,11 @@ fn signature_help_for_call( fn signature_help_for_generics( sema: &Semantics<'_, RootDatabase>, - garg_list: ast::GenericArgList, + arg_list: ast::GenericArgList, token: SyntaxToken, ) -> Option<SignatureHelp> { - let arg_list = garg_list - .syntax() - .ancestors() - .filter_map(ast::GenericArgList::cast) - .find(|list| list.syntax().text_range().contains(token.text_range().start()))?; - - let mut active_parameter = arg_list - .generic_args() - .take_while(|arg| arg.syntax().text_range().end() <= token.text_range().start()) - .count(); - - let first_arg_is_non_lifetime = arg_list - .generic_args() - .next() - .map_or(false, |arg| !matches!(arg, ast::GenericArg::LifetimeArg(_))); - - let mut generics_def = if let Some(path) = - arg_list.syntax().ancestors().find_map(ast::Path::cast) - { - let res = sema.resolve_path(&path)?; - let generic_def: hir::GenericDef = match res { - hir::PathResolution::Def(hir::ModuleDef::Adt(it)) => it.into(), - hir::PathResolution::Def(hir::ModuleDef::Function(it)) => it.into(), - hir::PathResolution::Def(hir::ModuleDef::Trait(it)) => it.into(), - hir::PathResolution::Def(hir::ModuleDef::TypeAlias(it)) => it.into(), - hir::PathResolution::Def(hir::ModuleDef::Variant(it)) => it.into(), - hir::PathResolution::Def(hir::ModuleDef::BuiltinType(_)) - | hir::PathResolution::Def(hir::ModuleDef::Const(_)) - | hir::PathResolution::Def(hir::ModuleDef::Macro(_)) - | hir::PathResolution::Def(hir::ModuleDef::Module(_)) - | hir::PathResolution::Def(hir::ModuleDef::Static(_)) => return None, - hir::PathResolution::BuiltinAttr(_) - | hir::PathResolution::ToolModule(_) - | hir::PathResolution::Local(_) - | hir::PathResolution::TypeParam(_) - | hir::PathResolution::ConstParam(_) - | hir::PathResolution::SelfType(_) - | hir::PathResolution::DeriveHelper(_) => return None, - }; - - generic_def - } else if let Some(method_call) = arg_list.syntax().parent().and_then(ast::MethodCallExpr::cast) - { - // recv.method::<$0>() - let method = sema.resolve_method_call(&method_call)?; - method.into() - } else { - return None; - }; - + let (mut generics_def, mut active_parameter, first_arg_is_non_lifetime) = + generic_def_for_node(sema, &arg_list, &token)?; let mut res = SignatureHelp { doc: None, signature: String::new(), @@ -307,9 +261,9 @@ fn signature_help_for_generics( // eg. `None::<u8>` // We'll use the signature of the enum, but include the docs of the variant. res.doc = it.docs(db).map(|it| it.into()); - let it = it.parent_enum(db); - format_to!(res.signature, "enum {}", it.name(db)); - generics_def = it.into(); + let enum_ = it.parent_enum(db); + format_to!(res.signature, "enum {}", enum_.name(db)); + generics_def = enum_.into(); } // These don't have generic args that can be specified hir::GenericDef::Impl(_) | hir::GenericDef::Const(_) => return None, @@ -388,16 +342,13 @@ fn signature_help_for_record_lit( record: ast::RecordExpr, token: SyntaxToken, ) -> Option<SignatureHelp> { - let arg_list = record - .syntax() - .ancestors() - .filter_map(ast::RecordExpr::cast) - .find(|list| list.syntax().text_range().contains(token.text_range().start()))?; - - let active_parameter = arg_list + let active_parameter = record .record_expr_field_list()? - .fields() - .take_while(|arg| arg.syntax().text_range().end() <= token.text_range().start()) + .syntax() + .children_with_tokens() + .filter_map(syntax::NodeOrToken::into_token) + .filter(|t| t.kind() == syntax::T![,]) + .take_while(|t| t.text_range().start() <= token.text_range().start()) .count(); let mut res = SignatureHelp { @@ -1594,4 +1545,27 @@ impl S { "#]], ); } + + #[test] + fn test_enum_in_nested_method_in_lambda() { + check( + r#" +enum A { + A, + B +} + +fn bar(_: A) { } + +fn main() { + let foo = Foo; + std::thread::spawn(move || { bar(A:$0) } ); +} +"#, + expect![[r#" + fn bar(_: A) + ^^^^ + "#]], + ); + } } diff --git a/crates/ide/src/syntax_highlighting/tests.rs b/crates/ide/src/syntax_highlighting/tests.rs index 2f870d769c..fc9b5d3ba4 100644 --- a/crates/ide/src/syntax_highlighting/tests.rs +++ b/crates/ide/src/syntax_highlighting/tests.rs @@ -1126,5 +1126,5 @@ fn benchmark_syntax_highlighting_parser() { .filter(|it| it.highlight.tag == HlTag::Symbol(SymbolKind::Function)) .count() }; - assert_eq!(hash, 1609); + assert_eq!(hash, 1608); } diff --git a/crates/parser/Cargo.toml b/crates/parser/Cargo.toml index 08359133f1..6e962abd75 100644 --- a/crates/parser/Cargo.toml +++ b/crates/parser/Cargo.toml @@ -20,4 +20,5 @@ limit.workspace = true [dev-dependencies] expect-test = "1.4.0" +stdx.workspace = true sourcegen.workspace = true diff --git a/crates/parser/src/grammar.rs b/crates/parser/src/grammar.rs index 485b612f08..15ec9e167e 100644 --- a/crates/parser/src/grammar.rs +++ b/crates/parser/src/grammar.rs @@ -200,6 +200,8 @@ impl BlockLike { } } +const VISIBILITY_FIRST: TokenSet = TokenSet::new(&[T![pub], T![crate]]); + fn opt_visibility(p: &mut Parser<'_>, in_tuple_field: bool) -> bool { match p.current() { T![pub] => { @@ -340,3 +342,31 @@ fn error_block(p: &mut Parser<'_>, message: &str) { p.eat(T!['}']); m.complete(p, ERROR); } + +/// The `parser` passed this is required to at least consume one token if it returns `true`. +/// If the `parser` returns false, parsing will stop. +fn delimited( + p: &mut Parser<'_>, + bra: SyntaxKind, + ket: SyntaxKind, + delim: SyntaxKind, + first_set: TokenSet, + mut parser: impl FnMut(&mut Parser<'_>) -> bool, +) { + p.bump(bra); + while !p.at(ket) && !p.at(EOF) { + if !parser(p) { + break; + } + if !p.at(delim) { + if p.at_ts(first_set) { + p.error(format!("expected {:?}", delim)); + } else { + break; + } + } else { + p.bump(delim); + } + } + p.expect(ket); +} diff --git a/crates/parser/src/grammar/attributes.rs b/crates/parser/src/grammar/attributes.rs index 0cf6a16f86..4ecaa6e6a8 100644 --- a/crates/parser/src/grammar/attributes.rs +++ b/crates/parser/src/grammar/attributes.rs @@ -1,5 +1,7 @@ use super::*; +pub(super) const ATTRIBUTE_FIRST: TokenSet = TokenSet::new(&[T![#]]); + pub(super) fn inner_attrs(p: &mut Parser<'_>) { while p.at(T![#]) && p.nth(1) == T![!] { attr(p, true); diff --git a/crates/parser/src/grammar/expressions.rs b/crates/parser/src/grammar/expressions.rs index 7516ac3c4b..4b080102a2 100644 --- a/crates/parser/src/grammar/expressions.rs +++ b/crates/parser/src/grammar/expressions.rs @@ -1,5 +1,7 @@ mod atom; +use crate::grammar::attributes::ATTRIBUTE_FIRST; + use super::*; pub(crate) use self::atom::{block_expr, match_arm_list}; @@ -68,6 +70,12 @@ pub(super) fn stmt(p: &mut Parser<'_>, semicolon: Semicolon) { Err(m) => m, }; + if !p.at_ts(EXPR_FIRST) { + p.err_and_bump("expected expression, item or let statement"); + m.abandon(p); + return; + } + if let Some((cm, blocklike)) = expr_stmt(p, Some(m)) { if !(p.at(T!['}']) || (semicolon != Semicolon::Required && p.at(EOF))) { // test no_semi_after_block @@ -227,6 +235,12 @@ fn expr_bp( attributes::outer_attrs(p); m }); + + if !p.at_ts(EXPR_FIRST) { + p.err_recover("expected expression", atom::EXPR_RECOVERY_SET); + m.abandon(p); + return None; + } let mut lhs = match lhs(p, r) { Some((lhs, blocklike)) => { let lhs = lhs.extend_to(p, m); @@ -551,23 +565,20 @@ fn cast_expr(p: &mut Parser<'_>, lhs: CompletedMarker) -> CompletedMarker { m.complete(p, CAST_EXPR) } +// test_err arg_list_recovery +// fn main() { +// foo(bar::); +// foo(bar:); +// foo(bar+); +// } fn arg_list(p: &mut Parser<'_>) { assert!(p.at(T!['('])); let m = p.start(); - p.bump(T!['(']); - while !p.at(T![')']) && !p.at(EOF) { - // test arg_with_attr - // fn main() { - // foo(#[attr] 92) - // } - if !expr(p) { - break; - } - if !p.at(T![')']) && !p.expect(T![,]) { - break; - } - } - p.eat(T![')']); + // test arg_with_attr + // fn main() { + // foo(#[attr] 92) + // } + delimited(p, T!['('], T![')'], T![,], EXPR_FIRST.union(ATTRIBUTE_FIRST), expr); m.complete(p, ARG_LIST); } diff --git a/crates/parser/src/grammar/expressions/atom.rs b/crates/parser/src/grammar/expressions/atom.rs index a23f900b73..efc2603835 100644 --- a/crates/parser/src/grammar/expressions/atom.rs +++ b/crates/parser/src/grammar/expressions/atom.rs @@ -40,26 +40,28 @@ pub(super) const ATOM_EXPR_FIRST: TokenSet = T!['{'], T!['['], T![|], - T![move], + T![async], T![box], + T![break], + T![const], + T![continue], + T![do], + T![for], T![if], - T![while], + T![let], + T![loop], T![match], - T![unsafe], + T![move], T![return], - T![yield], - T![do], - T![break], - T![continue], - T![async], + T![static], T![try], - T![const], - T![loop], - T![for], + T![unsafe], + T![while], + T![yield], LIFETIME_IDENT, ])); -const EXPR_RECOVERY_SET: TokenSet = TokenSet::new(&[T![let]]); +pub(super) const EXPR_RECOVERY_SET: TokenSet = TokenSet::new(&[T![')'], T![']']]); pub(super) fn atom_expr( p: &mut Parser<'_>, @@ -116,7 +118,7 @@ pub(super) fn atom_expr( // fn main() { // 'loop: impl // } - p.error("expected a loop"); + p.error("expected a loop or block"); m.complete(p, ERROR); return None; } @@ -157,7 +159,7 @@ pub(super) fn atom_expr( T![for] => for_expr(p, None), _ => { - p.err_recover("expected expression", EXPR_RECOVERY_SET); + p.err_and_bump("expected expression"); return None; } }; diff --git a/crates/parser/src/grammar/generic_args.rs b/crates/parser/src/grammar/generic_args.rs index c438943a00..919d9b91eb 100644 --- a/crates/parser/src/grammar/generic_args.rs +++ b/crates/parser/src/grammar/generic_args.rs @@ -5,27 +5,35 @@ pub(super) fn opt_generic_arg_list(p: &mut Parser<'_>, colon_colon_required: boo if p.at(T![::]) && p.nth(2) == T![<] { m = p.start(); p.bump(T![::]); - p.bump(T![<]); } else if !colon_colon_required && p.at(T![<]) && p.nth(1) != T![=] { m = p.start(); - p.bump(T![<]); } else { return; } - while !p.at(EOF) && !p.at(T![>]) { - generic_arg(p); - if !p.at(T![>]) && !p.expect(T![,]) { - break; - } - } - p.expect(T![>]); + delimited(p, T![<], T![>], T![,], GENERIC_ARG_FIRST, generic_arg); m.complete(p, GENERIC_ARG_LIST); } +const GENERIC_ARG_FIRST: TokenSet = TokenSet::new(&[ + LIFETIME_IDENT, + IDENT, + T!['{'], + T![true], + T![false], + T![-], + INT_NUMBER, + FLOAT_NUMBER, + CHAR, + BYTE, + STRING, + BYTE_STRING, +]) +.union(types::TYPE_FIRST); + // test generic_arg // type T = S<i32>; -fn generic_arg(p: &mut Parser<'_>) { +fn generic_arg(p: &mut Parser<'_>) -> bool { match p.current() { LIFETIME_IDENT => lifetime_arg(p), T!['{'] | T![true] | T![false] | T![-] => const_arg(p), @@ -68,8 +76,10 @@ fn generic_arg(p: &mut Parser<'_>) { } } } - _ => type_arg(p), + _ if p.at_ts(types::TYPE_FIRST) => type_arg(p), + _ => return false, } + true } // test lifetime_arg diff --git a/crates/parser/src/grammar/generic_params.rs b/crates/parser/src/grammar/generic_params.rs index 6db28ef132..7fcf938bab 100644 --- a/crates/parser/src/grammar/generic_params.rs +++ b/crates/parser/src/grammar/generic_params.rs @@ -1,3 +1,5 @@ +use crate::grammar::attributes::ATTRIBUTE_FIRST; + use super::*; pub(super) fn opt_generic_param_list(p: &mut Parser<'_>) { @@ -11,32 +13,31 @@ pub(super) fn opt_generic_param_list(p: &mut Parser<'_>) { fn generic_param_list(p: &mut Parser<'_>) { assert!(p.at(T![<])); let m = p.start(); - p.bump(T![<]); + delimited(p, T![<], T![>], T![,], GENERIC_PARAM_FIRST.union(ATTRIBUTE_FIRST), |p| { + // test generic_param_attribute + // fn foo<#[lt_attr] 'a, #[t_attr] T>() {} + let m = p.start(); + attributes::outer_attrs(p); + generic_param(p, m) + }); - while !p.at(EOF) && !p.at(T![>]) { - generic_param(p); - if !p.at(T![>]) && !p.expect(T![,]) { - break; - } - } - p.expect(T![>]); m.complete(p, GENERIC_PARAM_LIST); } -fn generic_param(p: &mut Parser<'_>) { - let m = p.start(); - // test generic_param_attribute - // fn foo<#[lt_attr] 'a, #[t_attr] T>() {} - attributes::outer_attrs(p); +const GENERIC_PARAM_FIRST: TokenSet = TokenSet::new(&[IDENT, LIFETIME_IDENT, T![const]]); + +fn generic_param(p: &mut Parser<'_>, m: Marker) -> bool { match p.current() { LIFETIME_IDENT => lifetime_param(p, m), IDENT => type_param(p, m), T![const] => const_param(p, m), _ => { m.abandon(p); - p.err_and_bump("expected type parameter"); + p.err_and_bump("expected generic parameter"); + return false; } } + true } // test lifetime_param diff --git a/crates/parser/src/grammar/items/adt.rs b/crates/parser/src/grammar/items/adt.rs index e7d30516b9..17f41b8e13 100644 --- a/crates/parser/src/grammar/items/adt.rs +++ b/crates/parser/src/grammar/items/adt.rs @@ -1,3 +1,5 @@ +use crate::grammar::attributes::ATTRIBUTE_FIRST; + use super::*; // test struct_item @@ -141,28 +143,31 @@ pub(crate) fn record_field_list(p: &mut Parser<'_>) { } } +const TUPLE_FIELD_FIRST: TokenSet = + types::TYPE_FIRST.union(ATTRIBUTE_FIRST).union(VISIBILITY_FIRST); + fn tuple_field_list(p: &mut Parser<'_>) { assert!(p.at(T!['('])); let m = p.start(); - p.bump(T!['(']); - while !p.at(T![')']) && !p.at(EOF) { + delimited(p, T!['('], T![')'], T![,], TUPLE_FIELD_FIRST, |p| { let m = p.start(); // test tuple_field_attrs // struct S (#[attr] f32); attributes::outer_attrs(p); - opt_visibility(p, true); + let has_vis = opt_visibility(p, true); if !p.at_ts(types::TYPE_FIRST) { p.error("expected a type"); - m.complete(p, ERROR); - break; + if has_vis { + m.complete(p, ERROR); + } else { + m.abandon(p); + } + return false; } types::type_(p); m.complete(p, TUPLE_FIELD); + true + }); - if !p.at(T![')']) { - p.expect(T![,]); - } - } - p.expect(T![')']); m.complete(p, TUPLE_FIELD_LIST); } diff --git a/crates/parser/src/grammar/params.rs b/crates/parser/src/grammar/params.rs index 20e8e95f06..74eae9151a 100644 --- a/crates/parser/src/grammar/params.rs +++ b/crates/parser/src/grammar/params.rs @@ -1,3 +1,5 @@ +use crate::grammar::attributes::ATTRIBUTE_FIRST; + use super::*; // test param_list @@ -66,14 +68,20 @@ fn list_(p: &mut Parser<'_>, flavor: Flavor) { } }; - if !p.at_ts(PARAM_FIRST) { + if !p.at_ts(PARAM_FIRST.union(ATTRIBUTE_FIRST)) { p.error("expected value parameter"); m.abandon(p); break; } param(p, m, flavor); - if !p.at(ket) { - p.expect(T![,]); + if !p.at(T![,]) { + if p.at_ts(PARAM_FIRST.union(ATTRIBUTE_FIRST)) { + p.error("expected `,`"); + } else { + break; + } + } else { + p.bump(T![,]); } } diff --git a/crates/parser/src/grammar/paths.rs b/crates/parser/src/grammar/paths.rs index af3b6f63cf..1064ae9970 100644 --- a/crates/parser/src/grammar/paths.rs +++ b/crates/parser/src/grammar/paths.rs @@ -67,6 +67,10 @@ fn path_for_qualifier( } } +const EXPR_PATH_SEGMENT_RECOVERY_SET: TokenSet = + items::ITEM_RECOVERY_SET.union(TokenSet::new(&[T![')'], T![,], T![let]])); +const TYPE_PATH_SEGMENT_RECOVERY_SET: TokenSet = types::TYPE_RECOVERY_SET; + fn path_segment(p: &mut Parser<'_>, mode: Mode, first: bool) { let m = p.start(); // test qual_paths @@ -102,7 +106,12 @@ fn path_segment(p: &mut Parser<'_>, mode: Mode, first: bool) { m.complete(p, NAME_REF); } _ => { - p.err_recover("expected identifier", items::ITEM_RECOVERY_SET); + let recover_set = match mode { + Mode::Use => items::ITEM_RECOVERY_SET, + Mode::Type => TYPE_PATH_SEGMENT_RECOVERY_SET, + Mode::Expr => EXPR_PATH_SEGMENT_RECOVERY_SET, + }; + p.err_recover("expected identifier", recover_set); if empty { // test_err empty_segment // use crate::; diff --git a/crates/parser/src/grammar/types.rs b/crates/parser/src/grammar/types.rs index 5c6e18fee8..7d0b156c5a 100644 --- a/crates/parser/src/grammar/types.rs +++ b/crates/parser/src/grammar/types.rs @@ -17,8 +17,9 @@ pub(super) const TYPE_FIRST: TokenSet = paths::PATH_FIRST.union(TokenSet::new(&[ T![Self], ])); -const TYPE_RECOVERY_SET: TokenSet = TokenSet::new(&[ +pub(super) const TYPE_RECOVERY_SET: TokenSet = TokenSet::new(&[ T![')'], + T![>], T![,], // test_err struct_field_recover // struct S { f pub g: () } diff --git a/crates/parser/src/tests.rs b/crates/parser/src/tests.rs index c1b4e9a7d8..2fec765bd7 100644 --- a/crates/parser/src/tests.rs +++ b/crates/parser/src/tests.rs @@ -15,6 +15,7 @@ use crate::{LexedStr, TopEntryPoint}; #[test] fn lex_ok() { for case in TestCase::list("lexer/ok") { + let _guard = stdx::panic_context::enter(format!("{:?}", case.rs)); let actual = lex(&case.text); expect_file![case.rast].assert_eq(&actual) } @@ -23,6 +24,7 @@ fn lex_ok() { #[test] fn lex_err() { for case in TestCase::list("lexer/err") { + let _guard = stdx::panic_context::enter(format!("{:?}", case.rs)); let actual = lex(&case.text); expect_file![case.rast].assert_eq(&actual) } @@ -46,6 +48,7 @@ fn lex(text: &str) -> String { #[test] fn parse_ok() { for case in TestCase::list("parser/ok") { + let _guard = stdx::panic_context::enter(format!("{:?}", case.rs)); let (actual, errors) = parse(TopEntryPoint::SourceFile, &case.text); assert!(!errors, "errors in an OK file {}:\n{actual}", case.rs.display()); expect_file![case.rast].assert_eq(&actual); @@ -55,6 +58,7 @@ fn parse_ok() { #[test] fn parse_inline_ok() { for case in TestCase::list("parser/inline/ok") { + let _guard = stdx::panic_context::enter(format!("{:?}", case.rs)); let (actual, errors) = parse(TopEntryPoint::SourceFile, &case.text); assert!(!errors, "errors in an OK file {}:\n{actual}", case.rs.display()); expect_file![case.rast].assert_eq(&actual); @@ -64,6 +68,7 @@ fn parse_inline_ok() { #[test] fn parse_err() { for case in TestCase::list("parser/err") { + let _guard = stdx::panic_context::enter(format!("{:?}", case.rs)); let (actual, errors) = parse(TopEntryPoint::SourceFile, &case.text); assert!(errors, "no errors in an ERR file {}:\n{actual}", case.rs.display()); expect_file![case.rast].assert_eq(&actual) @@ -73,6 +78,7 @@ fn parse_err() { #[test] fn parse_inline_err() { for case in TestCase::list("parser/inline/err") { + let _guard = stdx::panic_context::enter(format!("{:?}", case.rs)); let (actual, errors) = parse(TopEntryPoint::SourceFile, &case.text); assert!(errors, "no errors in an ERR file {}:\n{actual}", case.rs.display()); expect_file![case.rast].assert_eq(&actual) diff --git a/crates/parser/src/tests/top_entries.rs b/crates/parser/src/tests/top_entries.rs index eb640dc7fc..49dd9e293b 100644 --- a/crates/parser/src/tests/top_entries.rs +++ b/crates/parser/src/tests/top_entries.rs @@ -65,7 +65,7 @@ fn macro_stmt() { MACRO_STMTS ERROR SHEBANG "#!/usr/bin/rust" - error 0: expected expression + error 0: expected expression, item or let statement "##]], ); check( diff --git a/crates/parser/test_data/parser/err/0009_broken_struct_type_parameter.rast b/crates/parser/test_data/parser/err/0009_broken_struct_type_parameter.rast index a015432171..cdc01863ab 100644 --- a/crates/parser/test_data/parser/err/0009_broken_struct_type_parameter.rast +++ b/crates/parser/test_data/parser/err/0009_broken_struct_type_parameter.rast @@ -44,8 +44,7 @@ SOURCE_FILE IDENT "T" SEMICOLON ";" WHITESPACE "\n" -error 9: expected type parameter -error 11: expected COMMA +error 9: expected generic parameter error 11: expected R_ANGLE error 11: expected `;`, `{`, or `(` error 12: expected an item diff --git a/crates/parser/test_data/parser/err/0013_invalid_type.rast b/crates/parser/test_data/parser/err/0013_invalid_type.rast index eec84a0c67..b485c71ab3 100644 --- a/crates/parser/test_data/parser/err/0013_invalid_type.rast +++ b/crates/parser/test_data/parser/err/0013_invalid_type.rast @@ -43,17 +43,14 @@ SOURCE_FILE IDENT "Box" GENERIC_ARG_LIST L_ANGLE "<" - TYPE_ARG - ERROR - AT "@" - WHITESPACE " " - TUPLE_FIELD - PATH_TYPE - PATH - PATH_SEGMENT - NAME_REF - IDENT "Any" - ERROR + ERROR + AT "@" + WHITESPACE " " + MACRO_CALL + PATH + PATH_SEGMENT + NAME_REF + IDENT "Any" ERROR R_ANGLE ">" ERROR @@ -69,17 +66,14 @@ SOURCE_FILE ERROR SEMICOLON ";" WHITESPACE "\n\n" -error 67: expected type -error 68: expected COMMA -error 68: expected R_ANGLE -error 68: expected COMMA -error 68: expected R_ANGLE -error 68: expected COMMA -error 68: expected R_ANGLE -error 68: expected COMMA -error 72: expected COMMA -error 72: expected a type -error 72: expected R_PAREN +error 67: expected R_ANGLE +error 67: expected R_ANGLE +error 67: expected R_ANGLE +error 67: expected R_PAREN +error 67: expected SEMICOLON +error 67: expected an item +error 72: expected BANG +error 72: expected `{`, `[`, `(` error 72: expected SEMICOLON error 72: expected an item error 73: expected an item diff --git a/crates/parser/test_data/parser/err/0022_bad_exprs.rast b/crates/parser/test_data/parser/err/0022_bad_exprs.rast index 900394bd96..d97fc6c720 100644 --- a/crates/parser/test_data/parser/err/0022_bad_exprs.rast +++ b/crates/parser/test_data/parser/err/0022_bad_exprs.rast @@ -145,27 +145,29 @@ SOURCE_FILE error 16: expected expression error 17: expected R_BRACK error 17: expected SEMICOLON -error 17: expected expression +error 17: expected expression, item or let statement error 25: expected a name error 26: expected `;`, `{`, or `(` error 30: expected pattern error 31: expected SEMICOLON error 53: expected expression +error 54: expected R_PAREN error 54: expected SEMICOLON -error 54: expected expression +error 54: expected expression, item or let statement error 60: expected type error 60: expected `{` -error 60: expected expression +error 60: expected expression, item or let statement error 65: expected pattern error 65: expected SEMICOLON -error 65: expected expression +error 65: expected expression, item or let statement error 92: expected expression +error 93: expected R_PAREN error 93: expected SEMICOLON -error 93: expected expression -error 95: expected expression -error 96: expected expression +error 93: expected expression, item or let statement +error 95: expected expression, item or let statement +error 96: expected expression, item or let statement error 103: expected a name error 104: expected `{` error 108: expected pattern error 108: expected SEMICOLON -error 108: expected expression +error 108: expected expression, item or let statement diff --git a/crates/parser/test_data/parser/err/0024_many_type_parens.rast b/crates/parser/test_data/parser/err/0024_many_type_parens.rast index d374f86610..f0dbc9b102 100644 --- a/crates/parser/test_data/parser/err/0024_many_type_parens.rast +++ b/crates/parser/test_data/parser/err/0024_many_type_parens.rast @@ -168,75 +168,21 @@ SOURCE_FILE L_PAREN "(" ERROR QUESTION "?" - EXPR_STMT - PATH_EXPR - PATH - PATH_SEGMENT - NAME_REF - IDENT "Sized" + TYPE_ARG + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "Sized" ERROR R_PAREN ")" WHITESPACE " " ERROR PLUS "+" WHITESPACE " " - TUPLE_EXPR - L_PAREN "(" - CLOSURE_EXPR - FOR_KW "for" - GENERIC_PARAM_LIST - L_ANGLE "<" - LIFETIME_PARAM - LIFETIME - LIFETIME_IDENT "'a" - R_ANGLE ">" - WHITESPACE " " - BIN_EXPR - BIN_EXPR - BIN_EXPR - BIN_EXPR - PATH_EXPR - PATH - PATH_SEGMENT - NAME_REF - IDENT "Trait" - L_ANGLE "<" - ERROR - LIFETIME_IDENT "'a" - R_ANGLE ">" - ERROR - R_PAREN ")" - WHITESPACE " " - PLUS "+" - WHITESPACE " " - PAREN_EXPR - L_PAREN "(" - PATH_EXPR - PATH - PATH_SEGMENT - NAME_REF - IDENT "Copy" - R_PAREN ")" - R_ANGLE ">" - ERROR - SEMICOLON ";" - WHITESPACE "\n " - LET_EXPR - LET_KW "let" - WHITESPACE " " - WILDCARD_PAT - UNDERSCORE "_" - ERROR - COLON ":" - WHITESPACE " " + EXPR_STMT BIN_EXPR BIN_EXPR - PATH_EXPR - PATH - PATH_SEGMENT - NAME_REF - IDENT "Box" - L_ANGLE "<" TUPLE_EXPR L_PAREN "(" CLOSURE_EXPR @@ -250,78 +196,117 @@ SOURCE_FILE WHITESPACE " " BIN_EXPR BIN_EXPR - BIN_EXPR - BIN_EXPR - PATH_EXPR - PATH - PATH_SEGMENT - NAME_REF - IDENT "Trait" - L_ANGLE "<" - ERROR - LIFETIME_IDENT "'a" - R_ANGLE ">" - ERROR - R_PAREN ")" - WHITESPACE " " - PLUS "+" - WHITESPACE " " - PAREN_EXPR - L_PAREN "(" - PATH_EXPR - PATH - PATH_SEGMENT - NAME_REF - IDENT "Copy" - R_PAREN ")" - WHITESPACE " " - PLUS "+" - WHITESPACE " " - PAREN_EXPR - L_PAREN "(" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "Trait" + L_ANGLE "<" ERROR - QUESTION "?" + LIFETIME_IDENT "'a" + R_ANGLE ">" + R_PAREN ")" + WHITESPACE " " + PLUS "+" + WHITESPACE " " + PAREN_EXPR + L_PAREN "(" PATH_EXPR PATH PATH_SEGMENT NAME_REF - IDENT "Sized" + IDENT "Copy" R_PAREN ")" R_ANGLE ">" ERROR SEMICOLON ";" + WHITESPACE "\n " + LET_STMT + LET_KW "let" + WHITESPACE " " + WILDCARD_PAT + UNDERSCORE "_" + COLON ":" + WHITESPACE " " + DYN_TRAIT_TYPE + TYPE_BOUND_LIST + TYPE_BOUND + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "Box" + GENERIC_ARG_LIST + L_ANGLE "<" + TYPE_ARG + PAREN_TYPE + L_PAREN "(" + FOR_TYPE + FOR_KW "for" + GENERIC_PARAM_LIST + L_ANGLE "<" + LIFETIME_PARAM + LIFETIME + LIFETIME_IDENT "'a" + R_ANGLE ">" + WHITESPACE " " + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "Trait" + GENERIC_ARG_LIST + L_ANGLE "<" + LIFETIME_ARG + LIFETIME + LIFETIME_IDENT "'a" + R_ANGLE ">" + R_PAREN ")" + WHITESPACE " " + PLUS "+" + WHITESPACE " " + TYPE_BOUND + L_PAREN "(" + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "Copy" + R_PAREN ")" + WHITESPACE " " + PLUS "+" + WHITESPACE " " + TYPE_BOUND + L_PAREN "(" + QUESTION "?" + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "Sized" + R_PAREN ")" + ERROR + R_ANGLE ">" + SEMICOLON ";" WHITESPACE "\n" R_CURLY "}" WHITESPACE "\n" -error 88: expected COMMA error 88: expected R_ANGLE error 121: expected SEMICOLON -error 121: expected expression +error 121: expected expression, item or let statement error 140: expected type error 141: expected R_PAREN error 141: expected COMMA -error 141: expected R_ANGLE -error 141: expected SEMICOLON +error 146: expected R_ANGLE error 146: expected SEMICOLON -error 146: expected expression -error 148: expected expression +error 146: expected expression, item or let statement +error 148: expected expression, item or let statement error 158: expected `|` error 158: expected COMMA error 165: expected expression error 168: expected expression error 179: expected expression -error 180: expected COMMA -error 190: expected EQ -error 190: expected expression -error 191: expected COMMA -error 204: expected `|` -error 204: expected COMMA -error 211: expected expression -error 214: expected expression -error 228: expected expression -error 229: expected R_PAREN -error 229: expected COMMA -error 236: expected expression -error 237: expected COMMA -error 237: expected expression -error 237: expected R_PAREN +error 180: expected SEMICOLON +error 215: expected R_ANGLE +error 235: expected SEMICOLON +error 235: expected expression, item or let statement diff --git a/crates/parser/test_data/parser/err/0025_nope.rast b/crates/parser/test_data/parser/err/0025_nope.rast index 6b49724ec9..b6bc008837 100644 --- a/crates/parser/test_data/parser/err/0025_nope.rast +++ b/crates/parser/test_data/parser/err/0025_nope.rast @@ -156,8 +156,7 @@ SOURCE_FILE PATH_SEGMENT NAME_REF IDENT "i32" - WHITESPACE " " - ERROR + WHITESPACE " " ERROR L_CURLY "{" R_CURLY "}" @@ -199,10 +198,8 @@ error 95: expected type error 95: expected COMMA error 96: expected field error 98: expected field declaration +error 371: expected R_PAREN error 371: expected COMMA -error 372: expected a type -error 372: expected R_PAREN -error 372: expected COMMA error 372: expected enum variant error 374: expected enum variant error 494: expected pattern diff --git a/crates/parser/test_data/parser/err/0042_weird_blocks.rast b/crates/parser/test_data/parser/err/0042_weird_blocks.rast index 9cea337ce9..1cdc6e6e71 100644 --- a/crates/parser/test_data/parser/err/0042_weird_blocks.rast +++ b/crates/parser/test_data/parser/err/0042_weird_blocks.rast @@ -72,4 +72,4 @@ SOURCE_FILE error 24: expected existential, fn, trait or impl error 41: expected existential, fn, trait or impl error 56: expected a block -error 75: expected a loop +error 75: expected a loop or block diff --git a/crates/parser/test_data/parser/err/0048_double_fish.rast b/crates/parser/test_data/parser/err/0048_double_fish.rast index 3a05bfee1e..207a5c24df 100644 --- a/crates/parser/test_data/parser/err/0048_double_fish.rast +++ b/crates/parser/test_data/parser/err/0048_double_fish.rast @@ -12,7 +12,7 @@ SOURCE_FILE STMT_LIST L_CURLY "{" WHITESPACE "\n " - EXPR_STMT + BIN_EXPR PATH_EXPR PATH PATH_SEGMENT @@ -41,13 +41,14 @@ SOURCE_FILE COLON2 "::" ERROR L_ANGLE "<" - BIN_EXPR - PATH_EXPR - PATH - PATH_SEGMENT - NAME_REF - IDENT "nope" - SHR ">>" + TYPE_ARG + PATH_TYPE + PATH + PATH_SEGMENT + NAME_REF + IDENT "nope" + R_ANGLE ">" + R_ANGLE ">" ERROR SEMICOLON ";" WHITESPACE "\n" @@ -114,8 +115,6 @@ SOURCE_FILE WHITESPACE "\n" error 30: expected identifier error 31: expected COMMA -error 31: expected R_ANGLE -error 31: expected SEMICOLON error 37: expected expression error 75: expected identifier error 76: expected SEMICOLON diff --git a/crates/parser/test_data/parser/inline/err/0002_misplaced_label_err.rast b/crates/parser/test_data/parser/inline/err/0002_misplaced_label_err.rast index 56cea4b156..ea5203fb96 100644 --- a/crates/parser/test_data/parser/inline/err/0002_misplaced_label_err.rast +++ b/crates/parser/test_data/parser/inline/err/0002_misplaced_label_err.rast @@ -23,6 +23,6 @@ SOURCE_FILE WHITESPACE "\n" R_CURLY "}" WHITESPACE "\n" -error 22: expected a loop +error 22: expected a loop or block error 27: expected type error 27: expected `{` diff --git a/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rast b/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rast new file mode 100644 index 0000000000..5d0fe859c2 --- /dev/null +++ b/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rast @@ -0,0 +1,77 @@ +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 " + EXPR_STMT + CALL_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "foo" + ARG_LIST + L_PAREN "(" + PATH_EXPR + PATH + PATH + PATH_SEGMENT + NAME_REF + IDENT "bar" + COLON2 "::" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + CALL_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "foo" + ARG_LIST + L_PAREN "(" + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "bar" + ERROR + COLON ":" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n " + EXPR_STMT + CALL_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "foo" + ARG_LIST + L_PAREN "(" + BIN_EXPR + PATH_EXPR + PATH + PATH_SEGMENT + NAME_REF + IDENT "bar" + PLUS "+" + R_PAREN ")" + SEMICOLON ";" + WHITESPACE "\n" + R_CURLY "}" + WHITESPACE "\n" +error 25: expected identifier +error 39: expected COMMA +error 39: expected expression +error 55: expected expression diff --git a/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rs b/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rs new file mode 100644 index 0000000000..0e7ac9cc30 --- /dev/null +++ b/crates/parser/test_data/parser/inline/err/0015_arg_list_recovery.rs @@ -0,0 +1,5 @@ +fn main() { + foo(bar::); + foo(bar:); + foo(bar+); +} diff --git a/crates/parser/test_data/parser/inline/err/0015_missing_fn_param_type.rast b/crates/parser/test_data/parser/inline/err/0015_missing_fn_param_type.rast index e72df374d1..ea50ad35d7 100644 --- a/crates/parser/test_data/parser/inline/err/0015_missing_fn_param_type.rast +++ b/crates/parser/test_data/parser/inline/err/0015_missing_fn_param_type.rast @@ -49,5 +49,5 @@ SOURCE_FILE R_CURLY "}" WHITESPACE "\n" error 6: missing type for function parameter -error 6: expected COMMA +error 6: expected `,` error 16: missing type for function parameter |