Unnamed repository; edit this file 'description' to name the repository.
Remove hover fallback in favor of ranged hover
| -rw-r--r-- | crates/ide/src/hover.rs | 54 | ||||
| -rw-r--r-- | crates/ide/src/hover/tests.rs | 104 |
2 files changed, 27 insertions, 131 deletions
diff --git a/crates/ide/src/hover.rs b/crates/ide/src/hover.rs index 4a76ac9320..2058a4f5f1 100644 --- a/crates/ide/src/hover.rs +++ b/crates/ide/src/hover.rs @@ -15,7 +15,7 @@ use ide_db::{ FxIndexSet, RootDatabase, }; use itertools::Itertools; -use syntax::{ast, match_ast, AstNode, SyntaxKind::*, SyntaxNode, SyntaxToken, T}; +use syntax::{ast, AstNode, SyntaxKind::*, SyntaxNode, T}; use crate::{ doc_links::token_as_doc_comment, @@ -203,14 +203,10 @@ fn hover_simple( }) }); - result - .map(|mut res: HoverResult| { - res.actions = dedupe_or_merge_hover_actions(res.actions); - RangeInfo::new(original_token.text_range(), res) - }) - // fallback to type hover if there aren't any other suggestions - // this finds its own range instead of using the closest token's range - .or_else(|| descended().find_map(|token| hover_type_fallback(sema, config, token, token))) + result.map(|mut res: HoverResult| { + res.actions = dedupe_or_merge_hover_actions(res.actions); + RangeInfo::new(original_token.text_range(), res) + }) } fn hover_ranged( @@ -220,8 +216,11 @@ fn hover_ranged( config: &HoverConfig, ) -> Option<RangeInfo<HoverResult>> { // FIXME: make this work in attributes - let expr_or_pat = - file.covering_element(range).ancestors().find_map(Either::<ast::Expr, ast::Pat>::cast)?; + let expr_or_pat = file + .covering_element(range) + .ancestors() + .take_while(|it| ast::MacroCall::can_cast(it.kind()) || !ast::Item::can_cast(it.kind())) + .find_map(Either::<ast::Expr, ast::Pat>::cast)?; let res = match &expr_or_pat { Either::Left(ast::Expr::TryExpr(try_expr)) => render::try_expr(sema, config, try_expr), Either::Left(ast::Expr::PrefixExpr(prefix_expr)) @@ -268,39 +267,6 @@ pub(crate) fn hover_for_definition( }) } -fn hover_type_fallback( - sema: &Semantics<'_, RootDatabase>, - config: &HoverConfig, - token: &SyntaxToken, - original_token: &SyntaxToken, -) -> Option<RangeInfo<HoverResult>> { - let node = - token.parent_ancestors().take_while(|it| !ast::Item::can_cast(it.kind())).find(|n| { - ast::Expr::can_cast(n.kind()) - || ast::Pat::can_cast(n.kind()) - || ast::Type::can_cast(n.kind()) - })?; - - let expr_or_pat = match_ast! { - match node { - ast::Expr(it) => Either::Left(it), - ast::Pat(it) => Either::Right(it), - // If this node is a MACRO_CALL, it means that `descend_into_macros_many` failed to resolve. - // (e.g expanding a builtin macro). So we give up here. - ast::MacroCall(_it) => return None, - _ => return None, - } - }; - - let res = render::type_info_of(sema, config, &expr_or_pat)?; - - let range = sema - .original_range_opt(&node) - .map(|frange| frange.range) - .unwrap_or_else(|| original_token.text_range()); - Some(RangeInfo::new(range, res)) -} - fn show_implementations_action(db: &RootDatabase, def: Definition) -> Option<HoverAction> { fn to_action(nav_target: NavigationTarget) -> HoverAction { HoverAction::Implementation(FilePosition { diff --git a/crates/ide/src/hover/tests.rs b/crates/ide/src/hover/tests.rs index 2930aab68a..2830212add 100644 --- a/crates/ide/src/hover/tests.rs +++ b/crates/ide/src/hover/tests.rs @@ -214,37 +214,20 @@ m!(ab$0c); } #[test] -fn hover_shows_type_of_an_expression() { - check( - r#" -pub fn foo() -> u32 { 1 } - -fn main() { - let foo_test = foo()$0; -} -"#, - expect![[r#" - *foo()* - ```rust - u32 - ``` - "#]], - ); -} - -#[test] fn hover_remove_markdown_if_configured() { check_hover_no_markdown( r#" pub fn foo() -> u32 { 1 } fn main() { - let foo_test = foo()$0; + let foo_test = foo$0(); } "#, expect![[r#" - *foo()* - u32 + *foo* + test + + pub fn foo() -> u32 "#]], ); } @@ -304,33 +287,6 @@ fn main() { let foo_test = fo$0o(); } "#]], ); - // Multiple candidates but results are ambiguous. - check( - r#" -//- /a.rs -pub fn foo() -> u32 { 1 } - -//- /b.rs -pub fn foo() -> &str { "" } - -//- /c.rs -pub fn foo(a: u32, b: u32) {} - -//- /main.rs -mod a; -mod b; -mod c; - -fn main() { let foo_test = fo$0o(); } - "#, - expect![[r#" - *foo* - ```rust - {unknown} - ``` - "#]], - ); - // Use literal `crate` in path check( r#" @@ -1194,33 +1150,19 @@ fn test_hover_through_func_in_macro_recursive() { macro_rules! id_deep { ($($tt:tt)*) => { $($tt)* } } macro_rules! id { ($($tt:tt)*) => { id_deep!($($tt)*) } } fn bar() -> u32 { 0 } -fn foo() { let a = id!([0u32, bar($0)] ); } +fn foo() { let a = id!([0u32, bar$0()] ); } "#, expect![[r#" - *bar()* - ```rust - u32 - ``` - "#]], - ); -} + *bar* -#[test] -fn test_hover_through_literal_string_in_macro() { - check( - r#" -macro_rules! arr { ($($tt:tt)*) => { [$($tt)*] } } -fn foo() { - let mastered_for_itunes = ""; - let _ = arr!("Tr$0acks", &mastered_for_itunes); -} -"#, - expect![[r#" - *"Tracks"* - ```rust - &str - ``` - "#]], + ```rust + test + ``` + + ```rust + fn bar() -> u32 + ``` + "#]], ); } @@ -5655,30 +5597,18 @@ fn main() { #[test] fn hover_underscore_type() { - check( + check_hover_no_result( r#" fn main() { let x: _$0 = 0; } "#, - expect![[r#" - *_* - ```rust - {unknown} - ``` - "#]], ); - check( + check_hover_no_result( r#" fn main() { let x: (_$0,) = (0,); } "#, - expect![[r#" - *_* - ```rust - {unknown} - ``` - "#]], ); } |