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Add default type param in TypeParam Node

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This commit is contained in:
Edwin Cheng 2019-05-03 12:18:35 +08:00
parent 9901f3e45e
commit 9e4fee8b41
3 changed files with 8 additions and 1 deletions
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6
crates/ra_syntax/src/ast/traits.rs
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@ -152,3 +152,9 @@ impl<'a> Iterator for CommentIter<'a> {
self.iter.by_ref().find_map(|el| el.as_token().and_then(ast::Comment::cast))
}
}
pub trait DefaultTypeParamOwner: AstNode {
fn default_type(&self) -> Option<&ast::PathType> {
child_opt(self)
}
}