gccrs: Fix bad recursive operator overload call #3214
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When we are typechecking the impl block for DerefMut for &mut T the implementation follows the usual operator overload check but this ended up just resolving directly to the Trait definition which ends up being recursive which we usually handle. The issue we had is that a dereference call can be for either the DEREF or DEREF_MUT lang item here it was looking for a recurisve call to the DEREF lang item but we were in the DEREF_MUT lang item so this case was not accounted for. Fixes #3032 gcc/rust/ChangeLog: * typecheck/rust-hir-trait-reference.h: new get locus helper * typecheck/rust-hir-trait-resolve.cc (AssociatedImplTrait::get_locus): implemention * typecheck/rust-hir-type-check-expr.cc (TypeCheckExpr::resolve_operator_overload): fix overload gcc/testsuite/ChangeLog: * rust/compile/nr2/exclude: nr2 cant handle this * rust/compile/issue-3032-1.rs: New test. * rust/compile/issue-3032-2.rs: New test. Signed-off-by: Philip Herron <[email protected]>
philberty
modified the milestones:
Deref and DerefMut improvements,
HIR Pipeline for libcore 1.49 Complete
CohenArthur
modified the milestones:
HIR Pipeline for libcore 1.49 Complete,
Deref and DerefMut improvements
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When we are typechecking the impl block for DerefMut for &mut T the implementation follows the usual operator overload check but this ended up just resolving directly to the Trait definition which ends up being recursive which we usually handle. The issue we had is that a dereference call can be for either the DEREF or DEREF_MUT lang item here it was looking for a recurisve call to the DEREF lang item but we were in the DEREF_MUT lang item so this case was not accounted for.
Fixes #3032
gcc/rust/ChangeLog:
gcc/testsuite/ChangeLog: