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Flatten match

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This commit is contained in:
Michael Goulet 2023-12-25 18:05:32 +00:00
parent 27dce304cb
commit ba912855cc
1 changed files with 67 additions and 47 deletions
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114
compiler/rustc_borrowck/src/diagnostics/region_name.rs
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@ -686,59 +686,79 @@ fn give_name_if_anonymous_region_appears_in_output(&self, fr: RegionVid) -> Opti
let mir_description = match kind {
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::Async,
src,
)) => match src {
hir::CoroutineSource::Block => " of async block",
hir::CoroutineSource::Closure => " of async closure",
hir::CoroutineSource::Fn => {
let parent_item =
tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
let output = &parent_item
.fn_decl()
.expect("coroutine lowered from async fn should be in fn")
.output;
span = output.span();
if let hir::FnRetTy::Return(ret) = output {
hir_ty = Some(self.get_future_inner_return_ty(*ret));
}
" of async function"
hir::CoroutineSource::Block,
)) => " of async block",
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::Async,
hir::CoroutineSource::Closure,
)) => " of async closure",
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::Async,
hir::CoroutineSource::Fn,
)) => {
let parent_item =
tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
let output = &parent_item
.fn_decl()
.expect("coroutine lowered from async fn should be in fn")
.output;
span = output.span();
if let hir::FnRetTy::Return(ret) = output {
hir_ty = Some(self.get_future_inner_return_ty(*ret));
}
},
" of async function"
}
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::Gen,
src,
)) => match src {
hir::CoroutineSource::Block => " of gen block",
hir::CoroutineSource::Closure => " of gen closure",
hir::CoroutineSource::Fn => {
let parent_item =
tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
let output = &parent_item
.fn_decl()
.expect("coroutine lowered from gen fn should be in fn")
.output;
span = output.span();
" of gen function"
}
},
hir::CoroutineSource::Block,
)) => " of gen block",
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::Gen,
hir::CoroutineSource::Closure,
)) => " of gen closure",
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::Gen,
hir::CoroutineSource::Fn,
)) => {
let parent_item =
tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
let output = &parent_item
.fn_decl()
.expect("coroutine lowered from gen fn should be in fn")
.output;
span = output.span();
" of gen function"
}
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::AsyncGen,
src,
)) => match src {
hir::CoroutineSource::Block => " of async gen block",
hir::CoroutineSource::Closure => " of async gen closure",
hir::CoroutineSource::Fn => {
let parent_item =
tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
let output = &parent_item
.fn_decl()
.expect("coroutine lowered from async gen fn should be in fn")
.output;
span = output.span();
" of async gen function"
}
},
hir::CoroutineSource::Block,
)) => " of async gen block",
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::AsyncGen,
hir::CoroutineSource::Closure,
)) => " of async gen closure",
hir::ClosureKind::Coroutine(hir::CoroutineKind::Desugared(
hir::CoroutineDesugaring::AsyncGen,
hir::CoroutineSource::Fn,
)) => {
let parent_item =
tcx.hir_node_by_def_id(hir.get_parent_item(mir_hir_id).def_id);
let output = &parent_item
.fn_decl()
.expect("coroutine lowered from async gen fn should be in fn")
.output;
span = output.span();
" of async gen function"
}
hir::ClosureKind::Coroutine(hir::CoroutineKind::Coroutine(_)) => {
" of coroutine"
}