mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
2dbd6cc56b
Introduce two modes of bridging: * inline mode: this is basically how it worked so far. Using full C++ interop which allows bridging functions to be inlined. * pure mode: bridging functions are not inlined but compiled in a cpp file. This allows to reduce the C++ interop requirements to a minimum. No std/llvm/swift headers are imported. This change requires a major refactoring of bridging sources. The implementation of bridging functions go to two separate files: SILBridgingImpl.h and OptimizerBridgingImpl.h. Depending on the mode, those files are either included in the corresponding header files (inline mode), or included in the c++ file (pure mode). The mode can be selected with the BRIDGING_MODE cmake variable. By default it is set to the inline mode (= existing behavior). The pure mode is only selected in certain configurations to work around C++ interop issues: * In debug builds, to workaround a problem with LLDB's `po` command (rdar://115770255). * On windows to workaround a build problem.
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
//===--- BasicBridging.cpp - Utilities for swift bridging -----------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2022 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "swift/Basic/BridgingUtils.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
using namespace swift;
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// BridgedStringRef
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
void BridgedStringRef::write(BridgedOStream os) const {
|
|
static_cast<raw_ostream *>(os.streamAddr)->write(data, length);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// BridgedOwnedString
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
BridgedOwnedString::BridgedOwnedString(const std::string &stringToCopy)
|
|
: data(nullptr), length(stringToCopy.size()) {
|
|
if (length != 0) {
|
|
data = new char[length];
|
|
std::memcpy(data, stringToCopy.data(), length);
|
|
}
|
|
}
|
|
|
|
void BridgedOwnedString::destroy() const {
|
|
if (data)
|
|
delete [] data;
|
|
}
|
|
|