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Make CodegenBackend::join_codegen infallible.

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Because they all are, in practice.
This commit is contained in:
Nicholas Nethercote 2024-02-17 10:51:35 +11:00
parent cbddf31863
commit ede99234c4
6 changed files with 12 additions and 14 deletions
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6
compiler/rustc_codegen_cranelift/src/lib.rs
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@ -233,11 +233,11 @@ fn join_codegen(
ongoing_codegen: Box<dyn Any>,
sess: &Session,
_outputs: &OutputFilenames,
) -> Result<(CodegenResults, FxIndexMap<WorkProductId, WorkProduct>), ErrorGuaranteed> {
Ok(ongoing_codegen
) -> (CodegenResults, FxIndexMap<WorkProductId, WorkProduct>) {
ongoing_codegen
.downcast::<driver::aot::OngoingCodegen>()
.unwrap()
.join(sess, self.config.borrow().as_ref().unwrap()))
.join(sess, self.config.borrow().as_ref().unwrap())
}
fn link(

8
compiler/rustc_codegen_gcc/src/lib.rs
View File

@ -217,13 +217,11 @@ fn codegen_crate<'tcx>(&self, tcx: TyCtxt<'tcx>, metadata: EncodedMetadata, need
Box::new(res)
}
fn join_codegen(&self, ongoing_codegen: Box<dyn Any>, sess: &Session, _outputs: &OutputFilenames) -> Result<(CodegenResults, FxIndexMap<WorkProductId, WorkProduct>), ErrorGuaranteed> {
let (codegen_results, work_products) = ongoing_codegen
fn join_codegen(&self, ongoing_codegen: Box<dyn Any>, sess: &Session, _outputs: &OutputFilenames) -> (CodegenResults, FxIndexMap<WorkProductId, WorkProduct>) {
ongoing_codegen
.downcast::<rustc_codegen_ssa::back::write::OngoingCodegen<GccCodegenBackend>>()
.expect("Expected GccCodegenBackend's OngoingCodegen, found Box<Any>")
.join(sess);
Ok((codegen_results, work_products))
.join(sess)
}
fn link(&self, sess: &Session, codegen_results: CodegenResults, outputs: &OutputFilenames) -> Result<(), ErrorGuaranteed> {

4
compiler/rustc_codegen_llvm/src/lib.rs
View File

@ -369,7 +369,7 @@ fn join_codegen(
ongoing_codegen: Box<dyn Any>,
sess: &Session,
outputs: &OutputFilenames,
) -> Result<(CodegenResults, FxIndexMap<WorkProductId, WorkProduct>), ErrorGuaranteed> {
) -> (CodegenResults, FxIndexMap<WorkProductId, WorkProduct>) {
let (codegen_results, work_products) = ongoing_codegen
.downcast::<rustc_codegen_ssa::back::write::OngoingCodegen<LlvmCodegenBackend>>()
.expect("Expected LlvmCodegenBackend's OngoingCodegen, found Box<Any>")
@ -382,7 +382,7 @@ fn join_codegen(
});
}
Ok((codegen_results, work_products))
(codegen_results, work_products)
}
fn link(

2
compiler/rustc_codegen_ssa/src/traits/backend.rs
View File

@ -102,7 +102,7 @@ fn join_codegen(
ongoing_codegen: Box<dyn Any>,
sess: &Session,
outputs: &OutputFilenames,
) -> Result<(CodegenResults, FxIndexMap<WorkProductId, WorkProduct>), ErrorGuaranteed>;
) -> (CodegenResults, FxIndexMap<WorkProductId, WorkProduct>);
/// This is called on the returned `CodegenResults` from `join_codegen`
fn link(

2
compiler/rustc_interface/src/queries.rs
View File

@ -259,7 +259,7 @@ pub struct Linker {
impl Linker {
pub fn link(self, sess: &Session, codegen_backend: &dyn CodegenBackend) -> Result<()> {
let (codegen_results, work_products) =
codegen_backend.join_codegen(self.ongoing_codegen, sess, &self.output_filenames)?;
codegen_backend.join_codegen(self.ongoing_codegen, sess, &self.output_filenames);
sess.compile_status()?;

4
tests/run-make-fulldeps/hotplug_codegen_backend/the_backend.rs
View File

@ -49,11 +49,11 @@ fn join_codegen(
ongoing_codegen: Box<dyn Any>,
_sess: &Session,
_outputs: &OutputFilenames,
) -> Result<(CodegenResults, FxIndexMap<WorkProductId, WorkProduct>), ErrorGuaranteed> {
) -> (CodegenResults, FxIndexMap<WorkProductId, WorkProduct>) {
let codegen_results = ongoing_codegen
.downcast::<CodegenResults>()
.expect("in join_codegen: ongoing_codegen is not a CodegenResults");
Ok((*codegen_results, FxIndexMap::default()))
(*codegen_results, FxIndexMap::default())
}
fn link(