mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
//===--- AnyFunctionRef.h - A Universal Function Reference ------*- C++ -*-===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See http://swift.org/LICENSE.txt for license information
|
|
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SWIFT_AST_ANY_FUNCTION_REF_H
|
|
#define SWIFT_AST_ANY_FUNCTION_REF_H
|
|
|
|
#include "swift/Basic/LLVM.h"
|
|
#include "swift/AST/Decl.h"
|
|
#include "swift/AST/Expr.h"
|
|
#include "llvm/ADT/PointerUnion.h"
|
|
|
|
namespace swift {
|
|
class CaptureInfo;
|
|
|
|
/// \brief A universal function reference -- can wrap all AST nodes that
|
|
/// represent functions and exposes a common interface to them.
|
|
class AnyFunctionRef {
|
|
PointerUnion<AbstractFunctionDecl *, AbstractClosureExpr *> TheFunction;
|
|
|
|
public:
|
|
AnyFunctionRef(AbstractFunctionDecl *AFD) : TheFunction(AFD) {}
|
|
AnyFunctionRef(AbstractClosureExpr *CE) : TheFunction(CE) {}
|
|
|
|
CaptureInfo &getCaptureInfo() {
|
|
if (auto *AFD = TheFunction.dyn_cast<AbstractFunctionDecl *>())
|
|
return AFD->getCaptureInfo();
|
|
return TheFunction.get<AbstractClosureExpr *>()->getCaptureInfo();
|
|
}
|
|
|
|
Type getType() {
|
|
if (auto *AFD = TheFunction.dyn_cast<AbstractFunctionDecl *>())
|
|
return AFD->getType();
|
|
return TheFunction.get<AbstractClosureExpr *>()->getType();
|
|
}
|
|
|
|
BraceStmt *getBody() {
|
|
if (auto *AFD = TheFunction.dyn_cast<AbstractFunctionDecl *>())
|
|
return AFD->getBody();
|
|
auto *ACE = TheFunction.get<AbstractClosureExpr *>();
|
|
if (auto *PCE = dyn_cast<PipeClosureExpr>(ACE))
|
|
return PCE->getBody();
|
|
return cast<ImplicitClosureExpr>(ACE)->getBody();
|
|
}
|
|
|
|
DeclContext *getAsDeclContext() {
|
|
if (auto *AFD = TheFunction.dyn_cast<AbstractFunctionDecl *>())
|
|
return AFD;
|
|
auto *ACE = TheFunction.get<AbstractClosureExpr *>();
|
|
if (auto *PCE = dyn_cast<PipeClosureExpr>(ACE))
|
|
return PCE;
|
|
return cast<ImplicitClosureExpr>(ACE);
|
|
}
|
|
};
|
|
|
|
} // namespace swift
|
|
|
|
#endif // LLVM_SWIFT_AST_ANY_FUNCTION_REF_H
|
|
|