69 lines
2.0 KiB
Rust
69 lines
2.0 KiB
Rust
use ra_syntax::{ast, AstNode,};
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use ra_db::SyntaxDatabase;
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use crate::{
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FileId, Cancelable, HighlightedRange,
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db::RootDatabase,
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};
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pub(crate) fn highlight(db: &RootDatabase, file_id: FileId) -> Cancelable<Vec<HighlightedRange>> {
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let source_file = db.source_file(file_id);
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let mut res = ra_ide_api_light::highlight(source_file.syntax());
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for macro_call in source_file
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.syntax()
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.descendants()
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.filter_map(ast::MacroCall::cast)
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{
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if let Some((off, exp)) = hir::MacroDef::ast_expand(macro_call) {
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let mapped_ranges = ra_ide_api_light::highlight(&exp.syntax())
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.into_iter()
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.filter_map(|r| {
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let mapped_range = exp.map_range_back(r.range)?;
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let res = HighlightedRange {
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range: mapped_range + off,
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tag: r.tag,
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};
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Some(res)
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});
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res.extend(mapped_ranges);
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}
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}
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Ok(res)
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}
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#[cfg(test)]
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mod tests {
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use crate::mock_analysis::single_file;
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use insta::assert_debug_snapshot_matches;
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#[test]
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fn highlights_code_inside_macros() {
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let (analysis, file_id) = single_file(
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"
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fn main() {
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ctry!({ let x = 92; x});
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vec![{ let x = 92; x}];
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}
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",
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);
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let highlights = analysis.highlight(file_id).unwrap();
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assert_debug_snapshot_matches!("highlights_code_inside_macros", &highlights);
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}
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// FIXME: this test is not really necessary: artifact of the inital hacky
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// macros implementation.
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#[test]
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fn highlight_query_group_macro() {
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let (analysis, file_id) = single_file(
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"
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salsa::query_group! {
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pub trait HirDatabase: SyntaxDatabase {}
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}
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",
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);
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let highlights = analysis.highlight(file_id).unwrap();
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assert_debug_snapshot_matches!("highlight_query_group_macro", &highlights);
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}
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}
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