mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
82 lines
2.0 KiB
C++
82 lines
2.0 KiB
C++
//===--- Signature.h - An IR function signature -----------------*- C++ -*-===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See https://swift.org/LICENSE.txt for license information
|
|
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines the Signature type, which encapsulates all the
|
|
// information necessary to call a function value correctly.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SWIFT_IRGEN_SIGNATURE_H
|
|
#define SWIFT_IRGEN_SIGNATURE_H
|
|
|
|
#include "llvm/IR/Attributes.h"
|
|
#include "swift/AST/Types.h"
|
|
|
|
namespace llvm {
|
|
class FunctionType;
|
|
}
|
|
|
|
namespace clang {
|
|
namespace CodeGen {
|
|
class CGFunctionInfo;
|
|
}
|
|
}
|
|
|
|
namespace swift {
|
|
class Identifier;
|
|
enum class SILFunctionTypeRepresentation : uint8_t;
|
|
class SILType;
|
|
|
|
namespace irgen {
|
|
|
|
/// An encapsulation of different foreign calling-convention lowering
|
|
/// information we might have. Should be interpreted according to the
|
|
/// abstract CC of the formal function type.
|
|
class ForeignFunctionInfo {
|
|
public:
|
|
const clang::CodeGen::CGFunctionInfo *ClangInfo = nullptr;
|
|
};
|
|
|
|
/// A signature represents something which can actually be called.
|
|
class Signature {
|
|
llvm::FunctionType *Type = nullptr;
|
|
llvm::AttributeList Attributes;
|
|
ForeignFunctionInfo ForeignInfo;
|
|
|
|
public:
|
|
bool isValid() const {
|
|
return Type != nullptr;
|
|
}
|
|
|
|
static Signature get(IRGenModule &IGM, CanSILFunctionType formalType);
|
|
|
|
llvm::FunctionType *getType() const {
|
|
assert(isValid());
|
|
return Type;
|
|
}
|
|
|
|
llvm::AttributeList getAttributes() const {
|
|
assert(isValid());
|
|
return Attributes;
|
|
}
|
|
|
|
const ForeignFunctionInfo &getForeignInfo() const {
|
|
assert(isValid());
|
|
return ForeignInfo;
|
|
}
|
|
};
|
|
|
|
} // end namespace irgen
|
|
} // end namespace swift
|
|
|
|
#endif
|