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| author | Eli Friedman <eli.friedman@gmail.com> | 2009-08-15 21:55:26 +0000 |
|---|---|---|
| committer | Eli Friedman <eli.friedman@gmail.com> | 2009-08-15 21:55:26 +0000 |
| commit | c96d4963eb2eb99f9fac36687194489ecfac7b9c (patch) | |
| tree | a380891fbe17cbacb7a47eb244e738a4582bc212 /clang/lib/AST/ExprCXX.cpp | |
| parent | b20757bdeb97d3615e7db90dd02d5a24e0cf6489 (diff) | |
| download | bcm5719-llvm-c96d4963eb2eb99f9fac36687194489ecfac7b9c.tar.gz bcm5719-llvm-c96d4963eb2eb99f9fac36687194489ecfac7b9c.zip | |
Implement __is_empty. Patch by Sean Hunt.
llvm-svn: 79143
Diffstat (limited to 'clang/lib/AST/ExprCXX.cpp')
| -rw-r--r-- | clang/lib/AST/ExprCXX.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/clang/lib/AST/ExprCXX.cpp b/clang/lib/AST/ExprCXX.cpp index 454dc14b6c8..006f69890ab 100644 --- a/clang/lib/AST/ExprCXX.cpp +++ b/clang/lib/AST/ExprCXX.cpp @@ -223,6 +223,12 @@ bool UnaryTypeTraitExpr::EvaluateTrait(ASTContext& C) const { if (const RecordType *RT = QueriedType->getAs<RecordType>()) return cast<CXXRecordDecl>(RT->getDecl())->isAbstract(); return false; + case UTT_IsEmpty: + if (const RecordType *Record = QueriedType->getAs<RecordType>()) { + return !Record->getDecl()->isUnion() + && cast<CXXRecordDecl>(Record->getDecl())->isEmpty(); + } + return false; case UTT_HasTrivialConstructor: // http://gcc.gnu.org/onlinedocs/gcc/Type-Traits.html: // If __is_pod (type) is true then the trait is true, else if type is |
