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fix: Fix self keyword not being tagged as such in highlighting properly

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This commit is contained in:
Lukas Wirth 2021-12-04 19:07:18 +01:00
parent 3472105ad9
commit b35a50cb10
3 changed files with 57 additions and 61 deletions
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30
crates/ide/src/syntax_highlighting/highlight.rs
View file

@ -244,26 +244,25 @@ fn highlight_name_ref(
name_ref: ast::NameRef,
) -> Highlight {
let db = sema.db;
highlight_method_call_by_name_ref(sema, krate, &name_ref).unwrap_or_else(|| {
if let Some(res) = highlight_method_call_by_name_ref(sema, krate, &name_ref) {
return res;
}
let name_class = match NameRefClass::classify(sema, &name_ref) {
Some(name_kind) => name_kind,
None => {
return if syntactic_name_ref_highlighting {
highlight_name_ref_by_syntax(name_ref, sema, krate)
} else {
None if syntactic_name_ref_highlighting => {
return highlight_name_ref_by_syntax(name_ref, sema, krate)
}
// FIXME: Workaround for https://github.com/rust-analyzer/rust-analyzer/issues/10708
//
// Some popular proc macros (namely async_trait) will rewrite `self` in such a way that it no
// longer resolves via NameRefClass. If we can't be resolved, but we know we're a self token,
// within a function with a self param, pretend to still be `self`, rather than
// an unresolved reference.
if name_ref.self_token().is_some() && is_in_fn_with_self_param(&name_ref) {
SymbolKind::SelfParam.into()
} else {
HlTag::UnresolvedReference.into()
}
};
None if name_ref.self_token().is_some() && is_in_fn_with_self_param(&name_ref) => {
return SymbolKind::SelfParam.into()
}
None => return HlTag::UnresolvedReference.into(),
};
let mut h = match name_class {
NameRefClass::Definition(def) => {
@ -277,9 +276,7 @@ fn highlight_name_ref(
let mut h = highlight_def(sema, krate, def);
match def {
Definition::Local(local)
if is_consumed_lvalue(name_ref.syntax(), &local, db) =>
{
Definition::Local(local) if is_consumed_lvalue(name_ref.syntax(), &local, db) => {
h |= HlMod::Consuming;
}
Definition::Trait(trait_) if trait_.is_unsafe(db) => {
@ -305,16 +302,13 @@ fn highlight_name_ref(
}
NameRefClass::FieldShorthand { .. } => SymbolKind::Field.into(),
};
if h.tag == HlTag::Symbol(SymbolKind::Module) {
if name_ref.self_token().is_some() {
return SymbolKind::SelfParam.into();
h.tag = HlTag::Symbol(SymbolKind::SelfParam);
}
if name_ref.crate_token().is_some() || name_ref.super_token().is_some() {
h.tag = HlTag::Keyword;
}
}
h
})
}
fn highlight_name(

1
crates/ide/src/syntax_highlighting/test_data/highlighting.html
View file

@ -87,6 +87,7 @@ proc_macros::<span class="macro">mirror!</span> <span class="brace">{</span>
<span class="brace">}</span>
<span class="brace">}</span>
<span class="keyword">use</span> <span class="self_keyword crate_root">self</span><span class="operator">::</span><span class="struct">FooCopy</span><span class="operator">::</span><span class="brace">{</span><span class="self_keyword">self</span> <span class="keyword">as</span> <span class="struct declaration">BarCopy</span><span class="brace">}</span><span class="semicolon">;</span>
<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="derive attribute default_library library">Copy</span><span class="parenthesis attribute">)</span><span class="attribute_bracket attribute">]</span>
<span class="keyword">struct</span> <span class="struct declaration">FooCopy</span> <span class="brace">{</span>
<span class="field declaration">x</span><span class="colon">:</span> <span class="builtin_type">u32</span><span class="comma">,</span>

1
crates/ide/src/syntax_highlighting/tests.rs
View file

@ -60,6 +60,7 @@ impl Foo {
}
}
use self::FooCopy::{self as BarCopy};
#[derive(Copy)]
struct FooCopy {
x: u32,