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Introduce HasSource trait

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This commit is contained in:
Aleksey Kladov 2019-06-11 16:40:49 +03:00
parent 2a1fe26b6d
commit 36865adcb9
3 changed files with 45 additions and 29 deletions
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26
crates/ra_hir/src/code_model.rs
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@ -31,6 +31,11 @@ impl<T> From<(HirFileId, T)> for Source<T> {
}
}
pub trait HasSource {
type Ast;
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<Self::Ast>;
}
/// hir::Crate describes a single crate. It's the main interface with which
/// a crate's dependencies interact. Mostly, it should be just a proxy for the
/// root module.
@ -364,6 +369,13 @@ pub struct Struct {
pub(crate) id: StructId,
}
impl HasSource for Struct {
type Ast = TreeArc<ast::StructDef>;
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<TreeArc<ast::StructDef>> {
self.id.source(db).into()
}
}
impl Struct {
pub fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<TreeArc<ast::StructDef>> {
self.id.source(db).into()
@ -422,6 +434,13 @@ pub struct Union {
pub(crate) id: StructId,
}
impl HasSource for Union {
type Ast = TreeArc<ast::StructDef>;
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<TreeArc<ast::StructDef>> {
self.id.source(db).into()
}
}
impl Union {
pub fn source(
self,
@ -455,6 +474,13 @@ pub struct Enum {
pub(crate) id: EnumId,
}
impl HasSource for Enum {
type Ast = TreeArc<ast::EnumDef>;
fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<TreeArc<ast::EnumDef>> {
self.id.source(db).into()
}
}
impl Enum {
pub fn source(self, db: &(impl DefDatabase + AstDatabase)) -> Source<TreeArc<ast::EnumDef>> {
self.id.source(db).into()