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Use TypeAscriptionOwner

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This replaces places where we would use node + node.type_ref() with things that
have an ascribed type, with using the TypeAscriptionOwner as the trait bound so
we can simply pass the node.
This commit is contained in:
Ville Penttinen 2019-02-26 11:47:13 +02:00
parent 6eb070d661
commit 52054e1140
2 changed files with 15 additions and 12 deletions
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14
crates/ra_ide_api_light/src/structure.rs
View file

@ -2,7 +2,7 @@ use crate::TextRange;
use ra_syntax::{
algo::visit::{visitor, Visitor},
ast::{self, AttrsOwner, NameOwner, TypeParamsOwner},
ast::{self, AttrsOwner, NameOwner, TypeParamsOwner, TypeAscriptionOwner},
AstNode, SourceFile, SyntaxKind, SyntaxNode, WalkEvent,
};
@ -45,6 +45,12 @@ fn structure_node(node: &SyntaxNode) -> Option<StructureNode> {
decl_with_detail(node, None)
}
fn decl_with_ascription<N: NameOwner + AttrsOwner + TypeAscriptionOwner>(
node: &N,
) -> Option<StructureNode> {
decl_with_type_ref(node, node.ascribed_type())
}
fn decl_with_type_ref<N: NameOwner + AttrsOwner>(
node: &N,
type_ref: Option<&ast::TypeRef>,
@ -107,14 +113,14 @@ fn structure_node(node: &SyntaxNode) -> Option<StructureNode> {
decl_with_detail(fn_def, Some(detail))
})
.visit(decl::<ast::StructDef>)
.visit(|nfd: &ast::NamedFieldDef| decl_with_type_ref(nfd, nfd.type_ref()))
.visit(decl::<ast::EnumDef>)
.visit(decl::<ast::EnumVariant>)
.visit(decl::<ast::TraitDef>)
.visit(decl::<ast::Module>)
.visit(|td: &ast::TypeAliasDef| decl_with_type_ref(td, td.type_ref()))
.visit(|cd: &ast::ConstDef| decl_with_type_ref(cd, cd.type_ref()))
.visit(|sd: &ast::StaticDef| decl_with_type_ref(sd, sd.type_ref()))
.visit(decl_with_ascription::<ast::NamedFieldDef>)
.visit(decl_with_ascription::<ast::ConstDef>)
.visit(decl_with_ascription::<ast::StaticDef>)
.visit(|im: &ast::ImplBlock| {
let target_type = im.target_type()?;
let target_trait = im.target_trait();