Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/ide/src/highlight_related.rs')
| -rw-r--r-- | crates/ide/src/highlight_related.rs | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/crates/ide/src/highlight_related.rs b/crates/ide/src/highlight_related.rs index 80624eeae8..fb8dbcfc73 100644 --- a/crates/ide/src/highlight_related.rs +++ b/crates/ide/src/highlight_related.rs @@ -89,6 +89,9 @@ pub(crate) fn highlight_related( T![break] | T![loop] | T![while] | T![continue] if config.break_points => { highlight_break_points(sema, token).remove(&file_id) } + T![unsafe] if token.parent().and_then(ast::BlockExpr::cast).is_some() => { + highlight_unsafe_points(sema, token).remove(&file_id) + } T![|] if config.closure_captures => { highlight_closure_captures(sema, token, file_id, span_file_id.file_id()) } @@ -706,6 +709,44 @@ impl<'a> WalkExpandedExprCtx<'a> { } } +pub(crate) fn highlight_unsafe_points( + sema: &Semantics<'_, RootDatabase>, + token: SyntaxToken, +) -> FxHashMap<EditionedFileId, Vec<HighlightedRange>> { + fn hl( + sema: &Semantics<'_, RootDatabase>, + unsafe_token: &SyntaxToken, + block_expr: Option<ast::BlockExpr>, + ) -> Option<FxHashMap<EditionedFileId, Vec<HighlightedRange>>> { + let mut highlights: FxHashMap<EditionedFileId, Vec<_>> = FxHashMap::default(); + + let mut push_to_highlights = |file_id, range| { + if let Some(FileRange { file_id, range }) = original_frange(sema.db, file_id, range) { + let hrange = HighlightedRange { category: ReferenceCategory::empty(), range }; + highlights.entry(file_id).or_default().push(hrange); + } + }; + + // highlight unsafe keyword itself + let unsafe_token_file_id = sema.hir_file_for(&unsafe_token.parent()?); + push_to_highlights(unsafe_token_file_id, Some(unsafe_token.text_range())); + + // highlight unsafe operations + if let Some(block) = block_expr { + if let Some(body) = sema.body_for(InFile::new(unsafe_token_file_id, block.syntax())) { + let unsafe_ops = sema.get_unsafe_ops(body); + for unsafe_op in unsafe_ops { + push_to_highlights(unsafe_op.file_id, Some(unsafe_op.value.text_range())); + } + } + } + + Some(highlights) + } + + hl(sema, &token, token.parent().and_then(ast::BlockExpr::cast)).unwrap_or_default() +} + #[cfg(test)] mod tests { use itertools::Itertools; @@ -755,6 +796,32 @@ mod tests { } #[test] + fn test_hl_unsafe_block() { + check( + r#" +fn foo() { + unsafe fn this_is_unsafe_function() {} + + unsa$0fe { + //^^^^^^ + let raw_ptr = &42 as *const i32; + let val = *raw_ptr; + //^^^^^^^^ + + let mut_ptr = &mut 5 as *mut i32; + *mut_ptr = 10; + //^^^^^^^^ + + this_is_unsafe_function(); + //^^^^^^^^^^^^^^^^^^^^^^^^^ + } + +} +"#, + ); + } + + #[test] fn test_hl_tuple_fields() { check( r#" |