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implement simplify_type for PATypeHolder so that isa<FooType>(PATypeHolder) 

works.

llvm-svn: 61448
This commit is contained in:
Chris Lattner 2008-12-27 07:47:40 +00:00
parent 8233527b05
commit 8ee284673f
1 changed files with 16 additions and 0 deletions
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16
llvm/include/llvm/AbstractTypeUser.h
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@ -33,6 +33,7 @@ namespace llvm {
class Type; class Type;
class DerivedType; class DerivedType;
template<typename T> struct simplify_type;
/// The AbstractTypeUser class is an interface to be implemented by classes who /// The AbstractTypeUser class is an interface to be implemented by classes who
/// could possibly use an abstract type. Abstract types are denoted by the /// could possibly use an abstract type. Abstract types are denoted by the
@ -174,6 +175,21 @@ private:
void dropRef(); void dropRef();
}; };
// simplify_type - Allow clients to treat uses just like values when using
// casting operators.
template<> struct simplify_type<PATypeHolder> {
typedef const Type* SimpleType;
static SimpleType getSimplifiedValue(const PATypeHolder &Val) {
return static_cast<SimpleType>(Val.get());
}
};
template<> struct simplify_type<const PATypeHolder> {
typedef const Type* SimpleType;
static SimpleType getSimplifiedValue(const PATypeHolder &Val) {
return static_cast<SimpleType>(Val.get());
}
};
} // End llvm namespace } // End llvm namespace
#endif #endif