language-servers/rust-analyzer
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⬆️ rust-analyzer

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This commit is contained in:
Laurențiu Nicola 2022-10-18 09:12:49 +03:00
parent 8536eb016c
commit a99a48e786
86 changed files with 3149 additions and 1653 deletions
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56
crates/syntax/src/ast/edit_in_place.rs
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@ -235,6 +235,24 @@ impl ast::GenericParamList {
}
}
}
/// Constructs a matching [`ast::GenericArgList`]
pub fn to_generic_args(&self) -> ast::GenericArgList {
let args = self.generic_params().filter_map(|param| match param {
ast::GenericParam::LifetimeParam(it) => {
Some(ast::GenericArg::LifetimeArg(make::lifetime_arg(it.lifetime()?)))
}
ast::GenericParam::TypeParam(it) => {
Some(ast::GenericArg::TypeArg(make::type_arg(make::ext::ty_name(it.name()?))))
}
ast::GenericParam::ConstParam(it) => {
// Name-only const params get parsed as `TypeArg`s
Some(ast::GenericArg::TypeArg(make::type_arg(make::ext::ty_name(it.name()?))))
}
});
make::generic_arg_list(args)
}
}
impl ast::WhereClause {
@ -248,6 +266,42 @@ impl ast::WhereClause {
}
}
impl ast::TypeParam {
pub fn remove_default(&self) {
if let Some((eq, last)) = self
.syntax()
.children_with_tokens()
.find(|it| it.kind() == T![=])
.zip(self.syntax().last_child_or_token())
{
ted::remove_all(eq..=last);
// remove any trailing ws
if let Some(last) = self.syntax().last_token().filter(|it| it.kind() == WHITESPACE) {
last.detach();
}
}
}
}
impl ast::ConstParam {
pub fn remove_default(&self) {
if let Some((eq, last)) = self
.syntax()
.children_with_tokens()
.find(|it| it.kind() == T![=])
.zip(self.syntax().last_child_or_token())
{
ted::remove_all(eq..=last);
// remove any trailing ws
if let Some(last) = self.syntax().last_token().filter(|it| it.kind() == WHITESPACE) {
last.detach();
}
}
}
}
pub trait Removable: AstNode {
fn remove(&self);
}
@ -264,7 +318,7 @@ impl Removable for ast::TypeBoundList {
impl ast::PathSegment {
pub fn get_or_create_generic_arg_list(&self) -> ast::GenericArgList {
if self.generic_arg_list().is_none() {
let arg_list = make::generic_arg_list().clone_for_update();
let arg_list = make::generic_arg_list(empty()).clone_for_update();
ted::append_child(self.syntax(), arg_list.syntax());
}
self.generic_arg_list().unwrap()