SemaOverload: Complete candidates before emitting the error, to ensure diagnostics emitted (or suppressed) during completion don't interfere with the overload notes
Because diagnostics and their notes are not connected at the API level,
if the error message for an overload is emitted, then the overload
candidates are completed - if a diagnostic is emitted during that work,
the notes related to overload candidates would be attached to the latter
diagnostic, not the original error. Sort of worse, if the latter
diagnostic was disabled, the notes are disabled.
Reviewers: rsmith
Differential Revision: https://reviews.llvm.org/D61357
llvm-svn: 359854
diff --git a/clang/lib/Sema/SemaExprCXX.cpp b/clang/lib/Sema/SemaExprCXX.cpp
index 807e705..36e82d3 100644
--- a/clang/lib/Sema/SemaExprCXX.cpp
+++ b/clang/lib/Sema/SemaExprCXX.cpp
@@ -2301,8 +2301,8 @@
}
if (Diagnose) {
- S.Diag(R.getNameLoc(), diag::err_ovl_no_viable_function_in_call)
- << R.getLookupName() << Range;
+ PartialDiagnosticAt PD(R.getNameLoc(), S.PDiag(diag::err_ovl_no_viable_function_in_call)
+ << R.getLookupName() << Range);
// If we have aligned candidates, only note the align_val_t candidates
// from AlignedCandidates and the non-align_val_t candidates from
@@ -2317,30 +2317,34 @@
// This was an overaligned allocation, so list the aligned candidates
// first.
Args.insert(Args.begin() + 1, AlignArg);
- AlignedCandidates->NoteCandidates(S, OCD_AllCandidates, Args, "",
+ AlignedCandidates->NoteCandidates(PD, S, OCD_AllCandidates, Args, "",
R.getNameLoc(), IsAligned);
Args.erase(Args.begin() + 1);
- Candidates.NoteCandidates(S, OCD_AllCandidates, Args, "", R.getNameLoc(),
+ Candidates.NoteCandidates(PD, S, OCD_AllCandidates, Args, "", R.getNameLoc(),
IsUnaligned);
} else {
- Candidates.NoteCandidates(S, OCD_AllCandidates, Args);
+ Candidates.NoteCandidates(PD, S, OCD_AllCandidates, Args);
}
}
return true;
case OR_Ambiguous:
if (Diagnose) {
- S.Diag(R.getNameLoc(), diag::err_ovl_ambiguous_call)
- << R.getLookupName() << Range;
- Candidates.NoteCandidates(S, OCD_ViableCandidates, Args);
+ Candidates.NoteCandidates(
+ PartialDiagnosticAt(R.getNameLoc(),
+ S.PDiag(diag::err_ovl_ambiguous_call)
+ << R.getLookupName() << Range),
+ S, OCD_ViableCandidates, Args);
}
return true;
case OR_Deleted: {
if (Diagnose) {
- S.Diag(R.getNameLoc(), diag::err_ovl_deleted_call)
- << R.getLookupName() << Range;
- Candidates.NoteCandidates(S, OCD_AllCandidates, Args);
+ Candidates.NoteCandidates(
+ PartialDiagnosticAt(R.getNameLoc(),
+ S.PDiag(diag::err_ovl_deleted_call)
+ << R.getLookupName() << Range),
+ S, OCD_AllCandidates, Args);
}
return true;
}
@@ -3504,21 +3508,26 @@
}
case OR_No_Viable_Function:
- S.Diag(R.getNameLoc(), diag::err_ovl_no_viable_function_in_call)
- << R.getLookupName() << Range;
- Candidates.NoteCandidates(S, OCD_AllCandidates, Args);
+ Candidates.NoteCandidates(
+ PartialDiagnosticAt(R.getNameLoc(),
+ S.PDiag(diag::err_ovl_no_viable_function_in_call)
+ << R.getLookupName() << Range),
+ S, OCD_AllCandidates, Args);
return true;
case OR_Ambiguous:
- S.Diag(R.getNameLoc(), diag::err_ovl_ambiguous_call)
- << R.getLookupName() << Range;
- Candidates.NoteCandidates(S, OCD_ViableCandidates, Args);
+ Candidates.NoteCandidates(
+ PartialDiagnosticAt(R.getNameLoc(),
+ S.PDiag(diag::err_ovl_ambiguous_call)
+ << R.getLookupName() << Range),
+ S, OCD_ViableCandidates, Args);
return true;
case OR_Deleted: {
- S.Diag(R.getNameLoc(), diag::err_ovl_deleted_call)
- << R.getLookupName() << Range;
- Candidates.NoteCandidates(S, OCD_AllCandidates, Args);
+ Candidates.NoteCandidates(
+ PartialDiagnosticAt(R.getNameLoc(), S.PDiag(diag::err_ovl_deleted_call)
+ << R.getLookupName() << Range),
+ S, OCD_AllCandidates, Args);
return true;
}
}