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Add a DenseMapInfo specializaiton for CharUnits. 

llvm-svn: 117872
This commit is contained in:
Anders Carlsson 2010-10-31 21:17:03 +00:00
parent 508ef2c350
commit 5fd3e86cce
1 changed files with 35 additions and 0 deletions
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35
clang/include/clang/AST/CharUnits.h
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@ -14,6 +14,7 @@
#ifndef LLVM_CLANG_AST_CHARUNITS_H
#define LLVM_CLANG_AST_CHARUNITS_H
#include "llvm/ADT/DenseMapInfo.h"
#include "llvm/System/DataTypes.h"
namespace clang {
@ -146,4 +147,38 @@ inline clang::CharUnits operator* (clang::CharUnits::QuantityType Scale,
return CU * Scale;
}
namespace llvm {
template<> struct DenseMapInfo<clang::CharUnits> {
static clang::CharUnits getEmptyKey() {
clang::CharUnits::QuantityType Quantity =
DenseMapInfo<clang::CharUnits::QuantityType>::getEmptyKey();
return clang::CharUnits::fromQuantity(Quantity);
}
static clang::CharUnits getTombstoneKey() {
clang::CharUnits::QuantityType Quantity =
DenseMapInfo<clang::CharUnits::QuantityType>::getTombstoneKey();
return clang::CharUnits::fromQuantity(Quantity);
}
static unsigned getHashValue(const clang::CharUnits &CU) {
clang::CharUnits::QuantityType Quantity = CU.getQuantity();
return DenseMapInfo<clang::CharUnits::QuantityType>::getHashValue(Quantity);
}
static bool isEqual(const clang::CharUnits &LHS,
const clang::CharUnits &RHS) {
return LHS == RHS;
}
};
template <> struct isPodLike<clang::CharUnits> {
static const bool value = true;
};
} // end namespace llvm
#endif // LLVM_CLANG_AST_CHARUNITS_H