Unnamed repository; edit this file 'description' to name the repository.
Ignore strings in token trees in syntax highlighting
| -rw-r--r-- | crates/hir/src/semantics.rs | 2 | ||||
| -rw-r--r-- | crates/ide/src/syntax_highlighting.rs | 26 | ||||
| -rw-r--r-- | crates/ide/src/syntax_highlighting/test_data/highlight_strings.html | 5 | ||||
| -rw-r--r-- | crates/ide/src/syntax_highlighting/tests.rs | 5 |
4 files changed, 30 insertions, 8 deletions
diff --git a/crates/hir/src/semantics.rs b/crates/hir/src/semantics.rs index d2fd63428b..ac70c27785 100644 --- a/crates/hir/src/semantics.rs +++ b/crates/hir/src/semantics.rs @@ -606,8 +606,8 @@ impl<'db> SemanticsImpl<'db> { } Dp::None => true, }; + res = value; if is_a_match { - res = value; ControlFlow::Break(()) } else { ControlFlow::Continue(()) diff --git a/crates/ide/src/syntax_highlighting.rs b/crates/ide/src/syntax_highlighting.rs index 45582f54b4..366a3c969f 100644 --- a/crates/ide/src/syntax_highlighting.rs +++ b/crates/ide/src/syntax_highlighting.rs @@ -393,13 +393,25 @@ fn traverse( // Attempt to descend tokens into macro-calls. let res = match element { NodeOrToken::Token(token) if token.kind() != COMMENT => { - let token = sema.descend_into_macros_single( - match attr_or_derive_item { - Some(AttrOrDerive::Attr(_)) => DescendPreference::SameKind, - Some(AttrOrDerive::Derive(_)) | None => DescendPreference::None, - }, - token, - ); + let token = if token.kind() == STRING { + // for strings, try to prefer a string that has not been lost in a token + // tree + // FIXME: This should be done for everything, but check perf first + sema.descend_into_macros(DescendPreference::SameKind, token) + .into_iter() + .max_by_key(|it| { + it.parent().map_or(false, |it| it.kind() != TOKEN_TREE) + }) + .unwrap() + } else { + sema.descend_into_macros_single( + match attr_or_derive_item { + Some(AttrOrDerive::Attr(_)) => DescendPreference::SameKind, + Some(AttrOrDerive::Derive(_)) | None => DescendPreference::None, + }, + token, + ) + }; match token.parent().and_then(ast::NameLike::cast) { // Remap the token into the wrapping single token nodes Some(parent) => match (token.kind(), parent.syntax().kind()) { diff --git a/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html b/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html index b40295684d..75cb6223e0 100644 --- a/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html +++ b/crates/ide/src/syntax_highlighting/test_data/highlight_strings.html @@ -76,6 +76,10 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd <span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="colon">:</span>tt<span class="parenthesis">)</span><span class="punctuation">+</span><span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="parenthesis">(</span><span class="punctuation">$</span>crate<span class="colon">:</span><span class="colon">:</span>panic<span class="punctuation">!</span><span class="parenthesis">(</span><span class="string_literal">"not yet implemented: {}"</span><span class="comma">,</span> format_args<span class="punctuation">!</span><span class="parenthesis">(</span><span class="punctuation">$</span><span class="parenthesis">(</span><span class="punctuation">$</span>arg<span class="parenthesis">)</span><span class="punctuation">+</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="parenthesis">)</span><span class="semicolon">;</span> <span class="brace">}</span> +<span class="keyword">macro_rules</span><span class="macro_bang">!</span> <span class="macro declaration">reuse_twice</span> <span class="brace">{</span> + <span class="parenthesis">(</span><span class="punctuation">$</span>literal<span class="colon">:</span>literal<span class="parenthesis">)</span> <span class="operator">=</span><span class="angle">></span> <span class="brace">{</span><span class="brace">{</span>stringify<span class="punctuation">!</span><span class="parenthesis">(</span><span class="punctuation">$</span>literal<span class="parenthesis">)</span><span class="semicolon">;</span> format_args<span class="punctuation">!</span><span class="parenthesis">(</span><span class="punctuation">$</span>literal<span class="parenthesis">)</span><span class="brace">}</span><span class="brace">}</span><span class="semicolon">;</span> +<span class="brace">}</span> + <span class="keyword">fn</span> <span class="function declaration">main</span><span class="parenthesis">(</span><span class="parenthesis">)</span> <span class="brace">{</span> <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\n</span><span class="char_literal">'</span><span class="semicolon">;</span> <span class="keyword">let</span> <span class="variable declaration">a</span> <span class="operator">=</span> <span class="char_literal">'</span><span class="escape_sequence">\t</span><span class="char_literal">'</span><span class="semicolon">;</span> @@ -170,4 +174,5 @@ pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padd <span class="keyword">let</span> <span class="keyword">mut</span> <span class="variable declaration mutable">m</span> <span class="operator">=</span> <span class="parenthesis">(</span><span class="parenthesis">)</span><span class="semicolon">;</span> <span class="macro default_library library">format_args</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="macro default_library library macro">concat</span><span class="macro_bang macro">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"{}"</span><span class="parenthesis macro">)</span><span class="comma macro">,</span> <span class="string_literal macro">"{}"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="macro default_library library">format_args</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="variable reference">backslash</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="constant">CONSTANT</span><span class="format_specifier">}</span><span class="string_literal macro"> </span><span class="format_specifier">{</span><span class="variable mutable">m</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="variable macro reference">backslash</span><span class="comma macro">,</span> <span class="macro default_library library macro">format_args</span><span class="macro_bang macro">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="comma macro">,</span> <span class="numeric_literal macro">0</span><span class="parenthesis macro">)</span><span class="comma macro">,</span> <span class="unresolved_reference macro">foo</span><span class="comma macro">,</span> <span class="string_literal macro">"bar"</span><span class="comma macro">,</span> <span class="macro macro">toho</span><span class="macro_bang macro">!</span><span class="parenthesis macro">(</span><span class="parenthesis macro">)</span><span class="comma macro">,</span> <span class="variable macro reference">backslash</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> + <span class="macro">reuse_twice</span><span class="macro_bang">!</span><span class="parenthesis macro">(</span><span class="string_literal macro">"</span><span class="format_specifier">{</span><span class="variable reference">backslash</span><span class="format_specifier">}</span><span class="string_literal macro">"</span><span class="parenthesis macro">)</span><span class="semicolon">;</span> <span class="brace">}</span></code></pre>
\ No newline at end of file diff --git a/crates/ide/src/syntax_highlighting/tests.rs b/crates/ide/src/syntax_highlighting/tests.rs index 935b6b2cb9..fcfd3c9257 100644 --- a/crates/ide/src/syntax_highlighting/tests.rs +++ b/crates/ide/src/syntax_highlighting/tests.rs @@ -430,6 +430,10 @@ macro_rules! toho { ($($arg:tt)+) => ($crate::panic!("not yet implemented: {}", format_args!($($arg)+))); } +macro_rules! reuse_twice { + ($literal:literal) => {{stringify!($literal); format_args!($literal)}}; +} + fn main() { let a = '\n'; let a = '\t'; @@ -524,6 +528,7 @@ fn main() { let mut m = (); format_args!(concat!("{}"), "{}"); format_args!("{} {} {} {} {} {} {backslash} {CONSTANT} {m}", backslash, format_args!("{}", 0), foo, "bar", toho!(), backslash); + reuse_twice!("{backslash}"); }"#, expect_file!["./test_data/highlight_strings.html"], false, |