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//===-- Support/CHelpers.h - Utilities for writing C bindings -------------===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// These opaque reference<-->pointer conversions are shorter and more tightly
// typed than writing the casts by hand in C bindings. In assert builds, they
// will do type checking.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_SUPPORT_CHELPERS_H
#define LLVM_SUPPORT_CHELPERS_H
#include "llvm/Module.h"
#include "llvm/Type.h"
#include "llvm/Value.h"
typedef struct LLVMOpaqueModule *LLVMModuleRef;
typedef struct LLVMOpaqueType *LLVMTypeRef;
typedef struct LLVMOpaqueValue *LLVMValueRef;
namespace llvm {
/// Opaque module conversions
///
inline Module *unwrap(LLVMModuleRef M) {
return reinterpret_cast<Module*>(M);
}
inline LLVMModuleRef wrap(Module *M) {
return reinterpret_cast<LLVMModuleRef>(M);
}
/// Opaque type conversions
///
inline Type *unwrap(LLVMTypeRef Ty) {
return reinterpret_cast<Type*>(Ty);
}
template<typename T>
inline T *unwrap(LLVMTypeRef Ty) {
return cast<T>(unwrap(Ty));
}
inline Type **unwrap(LLVMTypeRef* Tys) {
return reinterpret_cast<Type**>(Tys);
}
inline LLVMTypeRef wrap(const Type *Ty) {
return reinterpret_cast<LLVMTypeRef>(const_cast<Type*>(Ty));
}
inline LLVMTypeRef *wrap(const Type **Tys) {
return reinterpret_cast<LLVMTypeRef*>(const_cast<Type**>(Tys));
}
/// Opaque value conversions
///
inline Value *unwrap(LLVMValueRef Val) {
return reinterpret_cast<Value*>(Val);
}
template<typename T>
inline T *unwrap(LLVMValueRef Val) {
return cast<T>(unwrap(Val));
}
inline Value **unwrap(LLVMValueRef *Vals) {
return reinterpret_cast<Value**>(Vals);
}
template<typename T>
inline T **unwrap(LLVMValueRef *Vals, unsigned Length) {
#if DEBUG
for (LLVMValueRef *I = Vals, E = Vals + Length; I != E; ++I)
cast<T>(*I);
#endif
return reinterpret_cast<T**>(Vals);
}
inline LLVMValueRef wrap(const Value *Val) {
return reinterpret_cast<LLVMValueRef>(const_cast<Value*>(Val));
}
inline LLVMValueRef *wrap(const Value **Vals) {
return reinterpret_cast<LLVMValueRef*>(const_cast<Value**>(Vals));
}
}
#endif
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