Unnamed repository; edit this file 'description' to name the repository.
| -rw-r--r-- | crates/hir-def/src/expr_store/lower.rs | 223 | ||||
| -rw-r--r-- | crates/hir-def/src/expr_store/tests/body.rs | 138 | ||||
| -rw-r--r-- | crates/ide-assists/src/handlers/term_search.rs | 12 | ||||
| -rw-r--r-- | crates/ide-completion/src/tests/expression.rs | 4 | ||||
| -rw-r--r-- | crates/ide-diagnostics/src/handlers/missing_unsafe.rs | 25 | ||||
| -rw-r--r-- | crates/intern/src/symbol/symbols.rs | 1 | ||||
| -rw-r--r-- | crates/test-utils/src/fixture.rs | 4 |
7 files changed, 366 insertions, 41 deletions
diff --git a/crates/hir-def/src/expr_store/lower.rs b/crates/hir-def/src/expr_store/lower.rs index 4ba31c1e20..efa1374a44 100644 --- a/crates/hir-def/src/expr_store/lower.rs +++ b/crates/hir-def/src/expr_store/lower.rs @@ -2815,6 +2815,51 @@ impl ExprCollector<'_> { mutability: Mutability::Shared, }) }; + + // Assume that rustc version >= 1.89.0 iff lang item `format_arguments` exists + // but `format_unsafe_arg` does not + let fmt_args = + || crate::lang_item::lang_item(self.db, self.module.krate(), LangItem::FormatArguments); + let fmt_unsafe_arg = + || crate::lang_item::lang_item(self.db, self.module.krate(), LangItem::FormatUnsafeArg); + let use_format_args_since_1_89_0 = fmt_args().is_some() && fmt_unsafe_arg().is_none(); + + let idx = if use_format_args_since_1_89_0 { + self.collect_format_args_impl( + syntax_ptr, + fmt, + hygiene, + argmap, + lit_pieces, + format_options, + ) + } else { + self.collect_format_args_before_1_89_0_impl( + syntax_ptr, + fmt, + argmap, + lit_pieces, + format_options, + ) + }; + + self.source_map + .template_map + .get_or_insert_with(Default::default) + .format_args_to_captures + .insert(idx, (hygiene, mappings)); + idx + } + + /// `format_args!` expansion implementation for rustc versions < `1.89.0` + fn collect_format_args_before_1_89_0_impl( + &mut self, + syntax_ptr: AstPtr<ast::Expr>, + fmt: FormatArgs, + argmap: FxIndexSet<(usize, ArgumentType)>, + lit_pieces: ExprId, + format_options: ExprId, + ) -> ExprId { let arguments = &*fmt.arguments.arguments; let args = if arguments.is_empty() { @@ -2902,19 +2947,181 @@ impl ExprCollector<'_> { }); } - let idx = self.alloc_expr( + self.alloc_expr( Expr::Call { callee: new_v1_formatted, args: Box::new([lit_pieces, args, format_options, unsafe_arg_new]), }, syntax_ptr, - ); - self.source_map - .template_map - .get_or_insert_with(Default::default) - .format_args_to_captures - .insert(idx, (hygiene, mappings)); - idx + ) + } + + /// `format_args!` expansion implementation for rustc versions >= `1.89.0`, + /// especially since [this PR](https://github.com/rust-lang/rust/pull/140748) + fn collect_format_args_impl( + &mut self, + syntax_ptr: AstPtr<ast::Expr>, + fmt: FormatArgs, + hygiene: HygieneId, + argmap: FxIndexSet<(usize, ArgumentType)>, + lit_pieces: ExprId, + format_options: ExprId, + ) -> ExprId { + let arguments = &*fmt.arguments.arguments; + + let (let_stmts, args) = if arguments.is_empty() { + ( + // Generate: + // [] + vec![], + self.alloc_expr_desugared(Expr::Array(Array::ElementList { + elements: Box::default(), + })), + ) + } else if argmap.len() == 1 && arguments.len() == 1 { + // Only one argument, so we don't need to make the `args` tuple. + // + // Generate: + // super let args = [<core::fmt::Arguments>::new_display(&arg)]; + let args = argmap + .iter() + .map(|&(arg_index, ty)| { + let ref_arg = self.alloc_expr_desugared(Expr::Ref { + expr: arguments[arg_index].expr, + rawness: Rawness::Ref, + mutability: Mutability::Shared, + }); + self.make_argument(ref_arg, ty) + }) + .collect(); + let args = + self.alloc_expr_desugared(Expr::Array(Array::ElementList { elements: args })); + let args_name = Name::new_symbol_root(sym::args); + let args_binding = + self.alloc_binding(args_name.clone(), BindingAnnotation::Unannotated, hygiene); + let args_pat = self.alloc_pat_desugared(Pat::Bind { id: args_binding, subpat: None }); + self.add_definition_to_binding(args_binding, args_pat); + // TODO: We don't have `super let` yet. + let let_stmt = Statement::Let { + pat: args_pat, + type_ref: None, + initializer: Some(args), + else_branch: None, + }; + (vec![let_stmt], self.alloc_expr_desugared(Expr::Path(Path::from(args_name)))) + } else { + // Generate: + // super let args = (&arg0, &arg1, &...); + let args_name = Name::new_symbol_root(sym::args); + let args_binding = + self.alloc_binding(args_name.clone(), BindingAnnotation::Unannotated, hygiene); + let args_pat = self.alloc_pat_desugared(Pat::Bind { id: args_binding, subpat: None }); + self.add_definition_to_binding(args_binding, args_pat); + let elements = arguments + .iter() + .map(|arg| { + self.alloc_expr_desugared(Expr::Ref { + expr: arg.expr, + rawness: Rawness::Ref, + mutability: Mutability::Shared, + }) + }) + .collect(); + let args_tuple = self.alloc_expr_desugared(Expr::Tuple { exprs: elements }); + // TODO: We don't have `super let` yet + let let_stmt1 = Statement::Let { + pat: args_pat, + type_ref: None, + initializer: Some(args_tuple), + else_branch: None, + }; + + // Generate: + // super let args = [ + // <core::fmt::Argument>::new_display(args.0), + // <core::fmt::Argument>::new_lower_hex(args.1), + // <core::fmt::Argument>::new_debug(args.0), + // … + // ]; + let args = argmap + .iter() + .map(|&(arg_index, ty)| { + let args_ident_expr = + self.alloc_expr_desugared(Expr::Path(args_name.clone().into())); + let arg = self.alloc_expr_desugared(Expr::Field { + expr: args_ident_expr, + name: Name::new_tuple_field(arg_index), + }); + self.make_argument(arg, ty) + }) + .collect(); + let array = + self.alloc_expr_desugared(Expr::Array(Array::ElementList { elements: args })); + let args_binding = + self.alloc_binding(args_name.clone(), BindingAnnotation::Unannotated, hygiene); + let args_pat = self.alloc_pat_desugared(Pat::Bind { id: args_binding, subpat: None }); + self.add_definition_to_binding(args_binding, args_pat); + let let_stmt2 = Statement::Let { + pat: args_pat, + type_ref: None, + initializer: Some(array), + else_branch: None, + }; + (vec![let_stmt1, let_stmt2], self.alloc_expr_desugared(Expr::Path(args_name.into()))) + }; + + // Generate: + // &args + let args = self.alloc_expr_desugared(Expr::Ref { + expr: args, + rawness: Rawness::Ref, + mutability: Mutability::Shared, + }); + + let call_block = { + // Generate: + // unsafe { + // <core::fmt::Arguments>::new_v1_formatted( + // lit_pieces, + // args, + // format_options, + // ) + // } + + let new_v1_formatted = LangItem::FormatArguments.ty_rel_path( + self.db, + self.module.krate(), + Name::new_symbol_root(sym::new_v1_formatted), + ); + let new_v1_formatted = + self.alloc_expr_desugared(new_v1_formatted.map_or(Expr::Missing, Expr::Path)); + let args = [lit_pieces, args, format_options]; + let call = self + .alloc_expr_desugared(Expr::Call { callee: new_v1_formatted, args: args.into() }); + + Expr::Unsafe { id: None, statements: Box::default(), tail: Some(call) } + }; + + if !let_stmts.is_empty() { + // Generate: + // { + // super let … + // super let … + // <core::fmt::Arguments>::new_…(…) + // } + let call = self.alloc_expr_desugared(call_block); + self.alloc_expr( + Expr::Block { + id: None, + statements: let_stmts.into(), + tail: Some(call), + label: None, + }, + syntax_ptr, + ) + } else { + self.alloc_expr(call_block, syntax_ptr) + } } /// Generate a hir expression for a format_args placeholder specification. diff --git a/crates/hir-def/src/expr_store/tests/body.rs b/crates/hir-def/src/expr_store/tests/body.rs index 29e249b07a..927e280d73 100644 --- a/crates/hir-def/src/expr_store/tests/body.rs +++ b/crates/hir-def/src/expr_store/tests/body.rs @@ -178,14 +178,14 @@ fn main() { } #[test] -fn desugar_builtin_format_args() { +fn desugar_builtin_format_args_before_1_89_0() { let (db, body, def) = lower( r#" -//- minicore: fmt +//- minicore: fmt_before_1_89_0 fn main() { let are = "are"; let count = 10; - builtin#format_args("\u{1b}hello {count:02} {} friends, we {are:?} {0}{last}", "fancy", last = "!"); + builtin#format_args("\u{1b}hello {count:02} {} friends, we {are:?} {0}{last}", "fancy", orphan = (), last = "!"); } "#, ); @@ -249,8 +249,11 @@ fn main() { builtin#lang(Count::Implied), ), ], - unsafe { - builtin#lang(UnsafeArg::new)() + { + (); + unsafe { + builtin#lang(UnsafeArg::new)() + } }, ); }"#]] @@ -258,6 +261,89 @@ fn main() { } #[test] +fn desugar_builtin_format_args() { + let (db, body, def) = lower( + r#" +//- minicore: fmt +fn main() { + let are = "are"; + let count = 10; + builtin#format_args("\u{1b}hello {count:02} {} friends, we {are:?} {0}{last}", "fancy", orphan = (), last = "!"); +} +"#, + ); + + expect![[r#" + fn main() { + let are = "are"; + let count = 10; + { + let args = (&"fancy", &(), &"!", &count, &are, ); + let args = [ + builtin#lang(Argument::new_display)( + args.3, + ), builtin#lang(Argument::new_display)( + args.0, + ), builtin#lang(Argument::new_debug)( + args.4, + ), builtin#lang(Argument::new_display)( + args.2, + ), + ]; + unsafe { + builtin#lang(Arguments::new_v1_formatted)( + &[ + "\u{1b}hello ", " ", " friends, we ", " ", "", + ], + &args, + &[ + builtin#lang(Placeholder::new)( + 0usize, + ' ', + builtin#lang(Alignment::Unknown), + 8u32, + builtin#lang(Count::Implied), + builtin#lang(Count::Is)( + 2, + ), + ), builtin#lang(Placeholder::new)( + 1usize, + ' ', + builtin#lang(Alignment::Unknown), + 0u32, + builtin#lang(Count::Implied), + builtin#lang(Count::Implied), + ), builtin#lang(Placeholder::new)( + 2usize, + ' ', + builtin#lang(Alignment::Unknown), + 0u32, + builtin#lang(Count::Implied), + builtin#lang(Count::Implied), + ), builtin#lang(Placeholder::new)( + 1usize, + ' ', + builtin#lang(Alignment::Unknown), + 0u32, + builtin#lang(Count::Implied), + builtin#lang(Count::Implied), + ), builtin#lang(Placeholder::new)( + 3usize, + ' ', + builtin#lang(Alignment::Unknown), + 0u32, + builtin#lang(Count::Implied), + builtin#lang(Count::Implied), + ), + ], + ) + } + }; + }"#]] + .assert_eq(&body.pretty_print(&db, def, Edition::CURRENT)) +} + +#[test] fn test_macro_hygiene() { let (db, body, def) = lower( r##" @@ -295,29 +381,31 @@ impl SsrError { expect![[r#" fn main() { _ = ra_test_fixture::error::SsrError::new( - builtin#lang(Arguments::new_v1_formatted)( - &[ - "Failed to resolve path `", "`", - ], - &[ + { + let args = [ builtin#lang(Argument::new_display)( &node.text(), ), - ], - &[ - builtin#lang(Placeholder::new)( - 0usize, - ' ', - builtin#lang(Alignment::Unknown), - 0u32, - builtin#lang(Count::Implied), - builtin#lang(Count::Implied), - ), - ], + ]; unsafe { - builtin#lang(UnsafeArg::new)() - }, - ), + builtin#lang(Arguments::new_v1_formatted)( + &[ + "Failed to resolve path `", "`", + ], + &args, + &[ + builtin#lang(Placeholder::new)( + 0usize, + ' ', + builtin#lang(Alignment::Unknown), + 0u32, + builtin#lang(Count::Implied), + builtin#lang(Count::Implied), + ), + ], + ) + } + }, ); }"#]] .assert_eq(&body.pretty_print(&db, def, Edition::CURRENT)) @@ -327,7 +415,7 @@ impl SsrError { fn regression_10300() { let (db, body, def) = lower( r#" -//- minicore: concat, panic +//- minicore: concat, panic, fmt_before_1_89_0 mod private { pub use core::concat; } diff --git a/crates/ide-assists/src/handlers/term_search.rs b/crates/ide-assists/src/handlers/term_search.rs index f01b7c0bc2..019ddaf144 100644 --- a/crates/ide-assists/src/handlers/term_search.rs +++ b/crates/ide-assists/src/handlers/term_search.rs @@ -100,7 +100,9 @@ fn f() { let a: u128 = 1; let b: u128 = todo$0!() }"#, fn test_complete_todo_with_msg() { check_assist( term_search, - r#"//- minicore: todo, unimplemented + // FIXME: Since we are lacking of `super let`, term search fails due to borrowck failure. + // Should implement super let and remove `fmt_before_1_89_0` + r#"//- minicore: todo, unimplemented, fmt_before_1_89_0 fn f() { let a: u128 = 1; let b: u128 = todo$0!("asd") }"#, r#"fn f() { let a: u128 = 1; let b: u128 = a }"#, ) @@ -110,7 +112,9 @@ fn f() { let a: u128 = 1; let b: u128 = todo$0!("asd") }"#, fn test_complete_unimplemented_with_msg() { check_assist( term_search, - r#"//- minicore: todo, unimplemented + // FIXME: Since we are lacking of `super let`, term search fails due to borrowck failure. + // Should implement super let and remove `fmt_before_1_89_0` + r#"//- minicore: todo, unimplemented, fmt_before_1_89_0 fn f() { let a: u128 = 1; let b: u128 = todo$0!("asd") }"#, r#"fn f() { let a: u128 = 1; let b: u128 = a }"#, ) @@ -120,7 +124,9 @@ fn f() { let a: u128 = 1; let b: u128 = todo$0!("asd") }"#, fn test_complete_unimplemented() { check_assist( term_search, - r#"//- minicore: todo, unimplemented + // FIXME: Since we are lacking of `super let`, term search fails due to borrowck failure. + // Should implement super let and remove `fmt_before_1_89_0` + r#"//- minicore: todo, unimplemented, fmt_before_1_89_0 fn f() { let a: u128 = 1; let b: u128 = todo$0!("asd") }"#, r#"fn f() { let a: u128 = 1; let b: u128 = a }"#, ) diff --git a/crates/ide-completion/src/tests/expression.rs b/crates/ide-completion/src/tests/expression.rs index b46e4c3206..b2d18b796f 100644 --- a/crates/ide-completion/src/tests/expression.rs +++ b/crates/ide-completion/src/tests/expression.rs @@ -1474,20 +1474,18 @@ fn main() { } "#, expect![[r#" + me foo() fn(&self) sn box Box::new(expr) sn call function(expr) sn const const {} sn dbg dbg!(expr) sn dbgr dbg!(&expr) sn deref *expr - sn if if expr {} sn match match expr {} - sn not !expr sn ref &expr sn refm &mut expr sn return return expr sn unsafe unsafe {} - sn while while expr {} "#]], ); } diff --git a/crates/ide-diagnostics/src/handlers/missing_unsafe.rs b/crates/ide-diagnostics/src/handlers/missing_unsafe.rs index 6bd5417b25..d8f6e813d8 100644 --- a/crates/ide-diagnostics/src/handlers/missing_unsafe.rs +++ b/crates/ide-diagnostics/src/handlers/missing_unsafe.rs @@ -630,6 +630,17 @@ fn main() { // Checks that we don't place orphan arguments for formatting under an unsafe block. check_diagnostics( r#" +//- minicore: fmt_before_1_89_0 +fn foo() { + let p = 0xDEADBEEF as *const i32; + format_args!("", *p); + // ^^ error: dereference of raw pointer is unsafe and requires an unsafe function or block +} + "#, + ); + + check_diagnostics( + r#" //- minicore: fmt fn foo() { let p = 0xDEADBEEF as *const i32; @@ -958,4 +969,18 @@ impl FooTrait for S2 { "#, ); } + + #[test] + fn no_false_positive_on_format_args_since_1_89_0() { + check_diagnostics( + r#" +//- minicore: fmt +fn test() { + let foo = 10; + let bar = true; + let _x = format_args!("{} {0} {} {last}", foo, bar, last = "!"); +} + "#, + ); + } } diff --git a/crates/intern/src/symbol/symbols.rs b/crates/intern/src/symbol/symbols.rs index d5cbb7328c..adc581309d 100644 --- a/crates/intern/src/symbol/symbols.rs +++ b/crates/intern/src/symbol/symbols.rs @@ -496,6 +496,7 @@ define_symbols! { vectorcall, wasm, win64, + args, array, boxed_slice, completions, diff --git a/crates/test-utils/src/fixture.rs b/crates/test-utils/src/fixture.rs index ddc7226311..1d821e96e5 100644 --- a/crates/test-utils/src/fixture.rs +++ b/crates/test-utils/src/fixture.rs @@ -446,13 +446,13 @@ impl MiniCore { } let mut keep = true; - for ®ion in active_regions.iter() { + for ®ion in &active_regions { assert!(!region.starts_with(' '), "region marker starts with a space: {region:?}"); self.assert_valid_flag(region); seen_regions.push(region); keep &= self.has_flag(region); } - for ®ion in inactive_regions.iter() { + for ®ion in &inactive_regions { assert!(!region.starts_with(' '), "region marker starts with a space: {region:?}"); self.assert_valid_flag(region); seen_regions.push(region); |