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Collapse nested matches in method_context.

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This commit is contained in:
Ms2ger 2015-02-28 13:32:18 +01:00
parent f38b83b360
commit 8a7b6b3ee6
1 changed files with 19 additions and 23 deletions
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42
src/librustc_lint/builtin.rs
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@ -887,32 +887,28 @@ fn method_context(cx: &Context, m: &ast::Method) -> MethodContext {
match cx.tcx.impl_or_trait_items.borrow().get(&did).cloned() {
None => cx.sess().span_bug(m.span, "missing method descriptor?!"),
Some(md) => {
match md {
ty::MethodTraitItem(md) => {
match md.container {
ty::TraitContainer(..) => MethodContext::TraitDefaultImpl,
ty::ImplContainer(cid) => {
match ty::impl_trait_ref(cx.tcx, cid) {
Some(..) => MethodContext::TraitImpl,
None => MethodContext::PlainImpl
}
}
}
}
ty::TypeTraitItem(typedef) => {
match typedef.container {
ty::TraitContainer(..) => MethodContext::TraitDefaultImpl,
ty::ImplContainer(cid) => {
match ty::impl_trait_ref(cx.tcx, cid) {
Some(..) => MethodContext::TraitImpl,
None => MethodContext::PlainImpl
}
}
Some(ty::MethodTraitItem(md)) => {
match md.container {
ty::TraitContainer(..) => MethodContext::TraitDefaultImpl,
ty::ImplContainer(cid) => {
match ty::impl_trait_ref(cx.tcx, cid) {
Some(..) => MethodContext::TraitImpl,
None => MethodContext::PlainImpl
}
}
}
}
},
Some(ty::TypeTraitItem(typedef)) => {
match typedef.container {
ty::TraitContainer(..) => MethodContext::TraitDefaultImpl,
ty::ImplContainer(cid) => {
match ty::impl_trait_ref(cx.tcx, cid) {
Some(..) => MethodContext::TraitImpl,
None => MethodContext::PlainImpl
}
}
}
},
}
}