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fix: Fix semantic highlighting breaking for lifetimes in macros

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This commit is contained in:
Lukas Wirth 2022-03-03 22:50:43 +01:00
parent 59088d8066
commit 8ded3ec9cf
3 changed files with 82 additions and 0 deletions
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1
crates/ide/src/syntax_highlighting.rs
View file

@ -323,6 +323,7 @@ fn traverse(
(T![ident], NAME | NAME_REF) => parent.into(),
(T![self] | T![super] | T![crate], NAME_REF) => parent.into(),
(INT_NUMBER, NAME_REF) => parent.into(),
(LIFETIME_IDENT, LIFETIME) => parent.into(),
_ => token.into(),
}
}

57
crates/ide/src/syntax_highlighting/test_data/highlight_lifetimes.html Normal file
View file

@ -0,0 +1,57 @@
<style>
body { margin: 0; }
pre { color: #DCDCCC; background: #3F3F3F; font-size: 22px; padding: 0.4em; }
.lifetime { color: #DFAF8F; font-style: italic; }
.label { color: #DFAF8F; font-style: italic; }
.comment { color: #7F9F7F; }
.documentation { color: #629755; }
.intra_doc_link { font-style: italic; }
.injected { opacity: 0.65 ; }
.struct, .enum { color: #7CB8BB; }
.enum_variant { color: #BDE0F3; }
.string_literal { color: #CC9393; }
.field { color: #94BFF3; }
.function { color: #93E0E3; }
.function.unsafe { color: #BC8383; }
.trait.unsafe { color: #BC8383; }
.operator.unsafe { color: #BC8383; }
.mutable.unsafe { color: #BC8383; text-decoration: underline; }
.keyword.unsafe { color: #BC8383; font-weight: bold; }
.parameter { color: #94BFF3; }
.text { color: #DCDCCC; }
.type { color: #7CB8BB; }
.builtin_type { color: #8CD0D3; }
.type_param { color: #DFAF8F; }
.attribute { color: #94BFF3; }
.numeric_literal { color: #BFEBBF; }
.bool_literal { color: #BFE6EB; }
.macro { color: #94BFF3; }
.derive { color: #94BFF3; font-style: italic; }
.module { color: #AFD8AF; }
.value_param { color: #DCDCCC; }
.variable { color: #DCDCCC; }
.format_specifier { color: #CC696B; }
.mutable { text-decoration: underline; }
.escape_sequence { color: #94BFF3; }
.keyword { color: #F0DFAF; font-weight: bold; }
.control { font-style: italic; }
.reference { font-style: italic; font-weight: bold; }
.unresolved_reference { color: #FC5555; text-decoration: wavy underline; }
</style>
<pre><code>
<span class="attribute_bracket attribute">#</span><span class="attribute_bracket attribute">[</span><span class="attribute attribute default_library library">derive</span><span class="parenthesis attribute">(</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
<span class="keyword">struct</span> <span class="struct declaration">Foo</span><span class="angle">&lt;</span><span class="lifetime declaration">'a</span><span class="comma">,</span> <span class="lifetime declaration">'b</span><span class="comma">,</span> <span class="lifetime declaration">'c</span><span class="angle">&gt;</span> <span class="keyword">where</span> <span class="lifetime">'a</span><span class="colon">:</span> <span class="lifetime">'a</span><span class="comma">,</span> <span class="lifetime">'static</span><span class="colon">:</span> <span class="lifetime">'static</span> <span class="brace">{</span>
<span class="field declaration">field</span><span class="colon">:</span> <span class="operator">&</span><span class="lifetime">'a</span> <span class="parenthesis">(</span><span class="parenthesis">)</span><span class="comma">,</span>
<span class="field declaration">field2</span><span class="colon">:</span> <span class="operator">&</span><span class="lifetime">'static</span> <span class="parenthesis">(</span><span class="parenthesis">)</span><span class="comma">,</span>
<span class="brace">}</span>
<span class="keyword">impl</span><span class="angle">&lt;</span><span class="lifetime declaration">'a</span><span class="angle">&gt;</span> <span class="struct">Foo</span><span class="angle">&lt;</span><span class="lifetime">'_</span><span class="comma">,</span> <span class="lifetime">'a</span><span class="comma">,</span> <span class="lifetime">'static</span><span class="angle">&gt;</span>
<span class="keyword">where</span>
<span class="lifetime">'a</span><span class="colon">:</span> <span class="lifetime">'a</span><span class="comma">,</span>
<span class="lifetime">'static</span><span class="colon">:</span> <span class="lifetime">'static</span>
<span class="brace">{</span>
<span class="brace">}</span>
</code></pre>

24
crates/ide/src/syntax_highlighting/tests.rs
View file

@ -312,6 +312,30 @@ macro_rules! die {
);
}
#[test]
fn test_lifetime_highlighting() {
check_highlighting(
r#"
//- minicore: derive
#[derive()]
struct Foo<'a, 'b, 'c> where 'a: 'a, 'static: 'static {
field: &'a (),
field2: &'static (),
}
impl<'a> Foo<'_, 'a, 'static>
where
'a: 'a,
'static: 'static
{
}
"#,
expect_file!["./test_data/highlight_lifetimes.html"],
false,
);
}
#[test]
fn test_string_highlighting() {
// The format string detection is based on macro-expansion,