rsmith accepted this revision.
rsmith added a comment.
This revision is now accepted and ready to land.
I like it, and it seems like it would nicely generalize if there are more cases
that we find need this treatment.
================
Comment at: clang/lib/Lex/LiteralSupport.cpp:676-682
- isLong = false;
- isUnsigned = false;
- isLongLong = false;
- isFloat = false;
- isHalf = false;
- isImaginary = false;
- MicrosoftInteger = 0;
----------------
We should still do this if `s != ThisTokEnd`, rather than relying on
`isValidUDSuffix` to also validate that we have a valid built-in suffix. (Eg,
if C++20 adds an "in" suffix for "inches", this patch would treat "1.0in" as a
valid `_Complex double` literal if no `operator""in` is found, because we don't
validate that all the suffix characters are used on the fallback path.)
================
Comment at: clang/lib/Lex/LiteralSupport.cpp:684
+ }
return;
}
----------------
Redundant return. Remove? :)
================
Comment at: clang/lib/Sema/SemaExpr.cpp:3355
+ /*DiagnoseMissing*/ !Literal.isImaginary)) {
+ case LOLR_Error: {
+ // Lookup failure for imaginary constants isn't fatal, there's still the
----------------
I'd feel a bit more comfortable with a different return value for "lookup
failed but we've not issued an error", to make it more obvious that we never
return `ExprError()` here without issuing a diagnostic.
https://reviews.llvm.org/D33424
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