rsmith added inline comments.
================
Comment at: include/clang/Basic/Diagnostic.h:936-937
@@ -935,3 +935,4 @@
public:
/// Copy constructor. When copied, this "takes" the diagnostic info from the
/// input and neuters it.
+ DiagnosticBuilder(DiagnosticBuilder &&D) {
----------------
Comment is out of date.
================
Comment at: include/clang/Sema/Sema.h:1085-1092
@@ -1084,10 +1084,10 @@
/// Teach operator<< to produce an object of the correct type.
template<typename T>
friend const SemaDiagnosticBuilder &operator<<(
const SemaDiagnosticBuilder &Diag, const T &Value) {
const DiagnosticBuilder &BaseDiag = Diag;
BaseDiag << Value;
return Diag;
}
};
----------------
If we only need to support value category preservation for
`SemaDiagnosticBuilder`, can we duplicate this template for the
`SemaDiagnosticBuilder &&operator<<(SemaDiagnosticBuilder &&Diag, const T
&Value)` case?
================
Comment at: lib/Parse/Parser.cpp:163-170
@@ -162,5 +162,10 @@
- DiagnosticBuilder DB =
- Spelling
- ? Diag(EndLoc, DiagID) << FixItHint::CreateInsertion(EndLoc,
Spelling)
- : Diag(Tok, DiagID);
+ DiagnosticBuilder DB = [&]() {
+ if (!Spelling)
+ return Diag(Tok, DiagID);
+
+ auto D = Diag(EndLoc, DiagID);
+ D << FixItHint::CreateInsertion(EndLoc, Spelling);
+ return D;
+ }();
+
----------------
This one might be more readable as
DiagnosticBuilder DB = std::move(Spelling ? ... : ...);
Thoughts?
http://reviews.llvm.org/D12131
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