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Fix trait type parameter

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oxalica 2021-03-16 00:58:29 +08:00
parent 87171238c6
commit 7101bada0f
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1 changed files with 7 additions and 1 deletions
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8
crates/hir/src/display.rs
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@ -233,7 +233,13 @@ impl HirDisplay for ConstParam {
fn write_generic_params(def: GenericDefId, f: &mut HirFormatter) -> Result<(), HirDisplayError> { fn write_generic_params(def: GenericDefId, f: &mut HirFormatter) -> Result<(), HirDisplayError> {
let params = f.db.generic_params(def); let params = f.db.generic_params(def);
if params.lifetimes.is_empty() && params.types.is_empty() && params.consts.is_empty() { if params.lifetimes.is_empty()
&& params.consts.is_empty()
&& params
.types
.iter()
.all(|(_, param)| !matches!(param.provenance, TypeParamProvenance::TypeParamList))
{
return Ok(()); return Ok(());
} }
write!(f, "<")?; write!(f, "<")?;