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tree-sitter: Refactor lazy query loading

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The code for loading queries can be shared between indent and
textobjects queries. In both cases we want to kick an error
message out to the logs.
This commit is contained in:
Michael Davis 2022-08-25 12:54:31 -05:00 • committed by Blaž Hrastnik
parent 12ddd03d3b
commit 4c789cfbda
1 changed files with 16 additions and 17 deletions
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33
helix-core/src/syntax.rs
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@ -399,28 +399,15 @@ impl LanguageConfiguration {
pub fn indent_query(&self) -> Option<&Query> {
self.indent_query
.get_or_init(|| {
let lang_name = self.language_id.to_ascii_lowercase();
let query_text = read_query(&lang_name, "indents.scm");
if query_text.is_empty() {
return None;
}
let lang = self.highlight_config.get()?.as_ref()?.language;
Query::new(lang, &query_text).ok()
})
.get_or_init(|| self.load_query("indents.scm"))
.as_ref()
}
pub fn textobject_query(&self) -> Option<&TextObjectQuery> {
self.textobject_query
.get_or_init(|| -> Option<TextObjectQuery> {
let lang_name = self.language_id.to_ascii_lowercase();
let query_text = read_query(&lang_name, "textobjects.scm");
let lang = self.highlight_config.get()?.as_ref()?.language;
let query = Query::new(lang, &query_text)
.map_err(|e| log::error!("Failed to parse textobjects.scm queries: {}", e))
.ok()?;
Some(TextObjectQuery { query })
.get_or_init(|| {
self.load_query("textobjects.scm")
.map(|query| TextObjectQuery { query })
})
.as_ref()
}
@ -428,6 +415,18 @@ impl LanguageConfiguration {
pub fn scope(&self) -> &str {
&self.scope
}
fn load_query(&self, kind: &str) -> Option<Query> {
let lang_name = self.language_id.to_ascii_lowercase();
let query_text = read_query(&lang_name, kind);
if query_text.is_empty() {
return None;
}
let lang = self.highlight_config.get()?.as_ref()?.language;
Query::new(lang, &query_text)
.map_err(|e| log::error!("Failed to parse {} queries for {}: {}", kind, lang_name, e))
.ok()
}
}
// Expose loader as Lazy<> global since it's always static?