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fix: add generic TypeBoundList in generated derivable impl

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This commit is contained in:
rami3l 2022-12-13 12:25:44 +08:00
parent 4596847a88
commit 12b05d2416
3 changed files with 98 additions and 7 deletions
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21
crates/syntax/src/ast/make.rs
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@ -719,11 +719,22 @@ pub fn param_list(
ast_from_text(&list)
}
pub fn type_param(name: ast::Name, ty: Option<ast::TypeBoundList>) -> ast::TypeParam {
let bound = match ty {
Some(it) => format!(": {it}"),
None => String::new(),
};
pub fn type_bound(bound: &str) -> ast::TypeBound {
ast_from_text(&format!("fn f<T: {bound}>() {{ }}"))
}
pub fn type_bound_list(
bounds: impl IntoIterator<Item = ast::TypeBound>,
) -> Option<ast::TypeBoundList> {
let bounds = bounds.into_iter().map(|it| it.to_string()).unique().join(" + ");
if bounds.is_empty() {
return None;
}
Some(ast_from_text(&format!("fn f<T: {bounds}>() {{ }}")))
}
pub fn type_param(name: ast::Name, bounds: Option<ast::TypeBoundList>) -> ast::TypeParam {
let bound = bounds.map_or_else(String::new, |it| format!(": {it}"));
ast_from_text(&format!("fn f<{name}{bound}>() {{ }}"))
}