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highlight macro idents

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This commit is contained in:
Aleksey Kladov 2018-12-28 17:39:12 +03:00
parent 406505e096
commit d7440a5f49
3 changed files with 35 additions and 5 deletions
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2
crates/ra_analysis/src/syntax_highlighting.rs
View File

@ -108,7 +108,7 @@ mod tests {
assert_eq_dbg(
r#"[HighlightedRange { range: [13; 15), tag: "keyword" },
HighlightedRange { range: [16; 20), tag: "function" },
HighlightedRange { range: [41; 45), tag: "text" },
HighlightedRange { range: [41; 46), tag: "macro" },
HighlightedRange { range: [49; 52), tag: "keyword" },
HighlightedRange { range: [57; 59), tag: "literal" },
HighlightedRange { range: [49; 52), tag: "keyword" },

35
crates/ra_editor/src/lib.rs
View File

@ -24,9 +24,10 @@ use ra_syntax::{
SourceFileNode,
Location,
SyntaxKind::{self, *},
SyntaxNodeRef, TextRange, TextUnit,
SyntaxNodeRef, TextRange, TextUnit, Direction,
};
use itertools::Itertools;
use rustc_hash::FxHashSet;
#[derive(Debug)]
pub struct HighlightedRange {
@ -79,8 +80,13 @@ pub fn matching_brace(file: &SourceFileNode, offset: TextUnit) -> Option<TextUni
}
pub fn highlight(file: &SourceFileNode) -> Vec<HighlightedRange> {
// Visited nodes to handle highlighting priorities
let mut highlighted = FxHashSet::default();
let mut res = Vec::new();
for node in file.syntax().descendants() {
if highlighted.contains(&node) {
continue;
}
let tag = match node.kind() {
COMMENT => "comment",
STRING | RAW_STRING | RAW_BYTE_STRING | BYTE_STRING => "string",
@ -90,7 +96,30 @@ pub fn highlight(file: &SourceFileNode) -> Vec<HighlightedRange> {
INT_NUMBER | FLOAT_NUMBER | CHAR | BYTE => "literal",
LIFETIME => "parameter",
k if k.is_keyword() => "keyword",
_ => continue,
_ => {
if let Some(macro_call) = ast::MacroCall::cast(node) {
if let Some(path) = macro_call.path() {
if let Some(segment) = path.segment() {
if let Some(name_ref) = segment.name_ref() {
highlighted.insert(name_ref.syntax());
let range_start = name_ref.syntax().range().start();
let mut range_end = name_ref.syntax().range().end();
for sibling in path.syntax().siblings(Direction::Next) {
match sibling.kind() {
EXCL | IDENT => range_end = sibling.range().end(),
_ => (),
}
}
res.push(HighlightedRange {
range: TextRange::from_to(range_start, range_end),
tag: "macro",
})
}
}
}
}
continue;
}
};
res.push(HighlightedRange {
range: node.range(),
@ -235,7 +264,7 @@ fn main() {}
r#"[HighlightedRange { range: [1; 11), tag: "comment" },
HighlightedRange { range: [12; 14), tag: "keyword" },
HighlightedRange { range: [15; 19), tag: "function" },
HighlightedRange { range: [29; 36), tag: "text" },
HighlightedRange { range: [29; 37), tag: "macro" },
HighlightedRange { range: [38; 50), tag: "string" },
HighlightedRange { range: [52; 54), tag: "literal" }]"#,
&hls,

3
editors/code/src/highlighting.ts
View File

@ -28,7 +28,8 @@ export class Highlighter {
['builtin', decor('#DD6718')],
['text', decor('#DCDCCC')],
['attribute', decor('#BFEBBF')],
['literal', decor('#DFAF8F')]
['literal', decor('#DFAF8F')],
['macro', decor('#DFAF8F')]
];
return new Map<string, vscode.TextEditorDecorationType>(decorations);