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Only take first 500 syntax errors

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Too many syntax errors make some editor/ide slow, fix #3434.
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yihuang 2020-07-10 15:41:41 +08:00
parent 5fc84f071d
commit 17ff67dd7e
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1 changed files with 2 additions and 1 deletions
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crates/ra_ide/src/diagnostics.rs
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@ -35,7 +35,8 @@ pub(crate) fn diagnostics(db: &RootDatabase, file_id: FileId) -> Vec<Diagnostic>
let parse = db.parse(file_id);
let mut res = Vec::new();
res.extend(parse.errors().iter().map(|err| Diagnostic {
// [#34344] Only take first 500 errors to prevent slowing down editor/ide, the number 500 is chosen arbitrarily.
res.extend(parse.errors().iter().take(500).map(|err| Diagnostic {
range: err.range(),
message: format!("Syntax Error: {}", err),
severity: Severity::Error,