bjoernager/rust
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remove unused return types such as empty Results or Options that would always be Some(..)

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remove unused return type of dropck::check_drop_obligations()
don't wrap return type in Option in get_macro_by_def_id() since we would always return Some(..)
remove redundant return type of back::write::optimize()
don't Option-wrap return type of compute_type_parameters() since we always return Some(..)
don't return empty Result in assemble_generator_candidates()
don't return empty Result in assemble_closure_candidates()
don't return empty result in assemble_fn_pointer_candidates()
don't return empty result in assemble_candidates_from_impls()
don't return empty result in assemble_candidates_from_auto_impls()
don't return emtpy result in assemble_candidates_for_trait_alias()
don't return empty result in assemble_builtin_bound_candidates()
don't return empty results in assemble_extension_candidates_for_traits_in_scope() and assemble_extension_candidates_for_trait()
remove redundant wrapping of return type of StripItem::strip() since it always returns Some(..)
remove unused return type of assemble_extension_candidates_for_all_traits()
This commit is contained in:
Matthias Krüger 2020-12-29 22:24:15 +01:00
parent b9c403be11
commit e5ead5fc58
12 changed files with 56 additions and 81 deletions
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8
compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
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@ -2322,13 +2322,13 @@ fn set_members_of_composite_type(
DIB(cx),
composite_type_metadata,
Some(type_array),
type_params,
Some(type_params),
);
}
}
/// Computes the type parameters for a type, if any, for the given metadata.
fn compute_type_parameters(cx: &CodegenCx<'ll, 'tcx>, ty: Ty<'tcx>) -> Option<&'ll DIArray> {
fn compute_type_parameters(cx: &CodegenCx<'ll, 'tcx>, ty: Ty<'tcx>) -> &'ll DIArray {
if let ty::Adt(def, substs) = *ty.kind() {
if substs.types().next().is_some() {
let generics = cx.tcx.generics_of(def.did);
@ -2358,10 +2358,10 @@ fn compute_type_parameters(cx: &CodegenCx<'ll, 'tcx>, ty: Ty<'tcx>) -> Option<&'
})
.collect();
return Some(create_DIArray(DIB(cx), &template_params[..]));
return create_DIArray(DIB(cx), &template_params[..]);
}
}
return Some(create_DIArray(DIB(cx), &[]));
return create_DIArray(DIB(cx), &[]);
fn get_parameter_names(cx: &CodegenCx<'_, '_>, generics: &ty::Generics) -> Vec<Symbol> {
let mut names = generics