| //===--- GenTuple.h - Swift IR generation for tuples ------------*- 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 provides the private interface to the tuple-emission code. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef SWIFT_IRGEN_GENTUPLE_H |
| #define SWIFT_IRGEN_GENTUPLE_H |
| |
| #include "swift/Basic/LLVM.h" |
| |
| namespace swift { |
| class CanType; |
| |
| namespace irgen { |
| class Address; |
| class Explosion; |
| class IRGenFunction; |
| class Size; |
| |
| /// Project the address of a tuple element. |
| Address projectTupleElementAddress(IRGenFunction &IGF, |
| Address base, |
| SILType tupleType, |
| unsigned fieldNo); |
| |
| /// Project a tuple element rvalue from an already-exploded tuple rvalue. |
| void projectTupleElementFromExplosion(IRGenFunction &IGF, |
| SILType tupleType, |
| Explosion &tuple, |
| unsigned fieldNo, |
| Explosion &out); |
| |
| /// Return the offset to the given tuple element, if it's fixed. |
| /// |
| /// This API is used by RemoteAST. |
| Optional<Size> getFixedTupleElementOffset(IRGenModule &IGM, |
| SILType tupleType, |
| unsigned fieldNo); |
| |
| /// Returns the index of the element in the llvm struct type which represents |
| /// \p fieldNo in \p tupleType. |
| /// |
| /// Returns None if the tuple element is an empty type and therefore has no |
| /// corresponding element in the llvm type. |
| Optional<unsigned> getPhysicalTupleElementStructIndex(IRGenModule &IGM, |
| SILType tupleType, |
| unsigned fieldNo); |
| } // end namespace irgen |
| } // end namespace swift |
| |
| #endif |