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Reduce copy-paste

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This commit is contained in:
Aleksey Kladov 2019-12-05 16:53:17 +01:00
parent 0c0ce1ae41
commit 1a567f5ca2
1 changed files with 30 additions and 20 deletions
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50
crates/ra_hir/src/from_source.rs
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@ -2,8 +2,8 @@
use either::Either;
use hir_def::{
child_from_source::ChildFromSource, nameres::ModuleSource, AstItemDef, EnumVariantId,
LocationCtx, ModuleId, VariantId,
child_from_source::ChildFromSource, nameres::ModuleSource, AstItemDef, EnumVariantId, ImplId,
LocationCtx, ModuleId, TraitId, VariantId,
};
use hir_expand::{name::AsName, AstId, MacroDefId, MacroDefKind};
use ra_syntax::{
@ -53,24 +53,18 @@ impl FromSource for Trait {
impl FromSource for Function {
type Ast = ast::FnDef;
fn from_source(db: &(impl DefDatabase + AstDatabase), src: InFile<Self::Ast>) -> Option<Self> {
match Container::find(db, src.as_ref().map(|it| it.syntax()))? {
Container::Trait(it) => it.id.child_from_source(db, src),
Container::ImplBlock(it) => it.id.child_from_source(db, src),
Container::Module(it) => it.id.child_from_source(db, src),
}
.map(Function::from)
Container::find(db, src.as_ref().map(|it| it.syntax()))?
.child_from_source(db, src)
.map(Function::from)
}
}
impl FromSource for Const {
type Ast = ast::ConstDef;
fn from_source(db: &(impl DefDatabase + AstDatabase), src: InFile<Self::Ast>) -> Option<Self> {
match Container::find(db, src.as_ref().map(|it| it.syntax()))? {
Container::Trait(it) => it.id.child_from_source(db, src),
Container::ImplBlock(it) => it.id.child_from_source(db, src),
Container::Module(it) => it.id.child_from_source(db, src),
}
.map(Const::from)
Container::find(db, src.as_ref().map(|it| it.syntax()))?
.child_from_source(db, src)
.map(Const::from)
}
}
impl FromSource for Static {
@ -86,12 +80,9 @@ impl FromSource for Static {
impl FromSource for TypeAlias {
type Ast = ast::TypeAliasDef;
fn from_source(db: &(impl DefDatabase + AstDatabase), src: InFile<Self::Ast>) -> Option<Self> {
match Container::find(db, src.as_ref().map(|it| it.syntax()))? {
Container::Trait(it) => it.id.child_from_source(db, src),
Container::ImplBlock(it) => it.id.child_from_source(db, src),
Container::Module(it) => it.id.child_from_source(db, src),
}
.map(TypeAlias::from)
Container::find(db, src.as_ref().map(|it| it.syntax()))?
.child_from_source(db, src)
.map(TypeAlias::from)
}
}
@ -263,3 +254,22 @@ impl Container {
Some(Container::Module(c))
}
}
impl<CHILD, SOURCE> ChildFromSource<CHILD, SOURCE> for Container
where
TraitId: ChildFromSource<CHILD, SOURCE>,
ImplId: ChildFromSource<CHILD, SOURCE>,
ModuleId: ChildFromSource<CHILD, SOURCE>,
{
fn child_from_source(
&self,
db: &impl DefDatabase,
child_source: InFile<SOURCE>,
) -> Option<CHILD> {
match self {
Container::Trait(it) => it.id.child_from_source(db, child_source),
Container::ImplBlock(it) => it.id.child_from_source(db, child_source),
Container::Module(it) => it.id.child_from_source(db, child_source),
}
}
}