mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
2c13b2e6fe
Finishes the removal of the old "wrapped" module section that was made unnecessary in r12922/3. Now that we no longer use the old compiler, we don't need this at all. That also removes the need for SwiftTargetMachine. No functionality change; this was all dead code. Swift SVN r14758
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
//===--- ASTSectionImporter.cpp - Import AST Section Modules --------------===//
|
|
//
|
|
// 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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements support for loading modules serialized into a
|
|
// Mach-O AST section into Swift.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "swift/ASTSectionImporter/ASTSectionImporter.h"
|
|
#include "swift/Basic/Dwarf.h"
|
|
#include "swift/Serialization/SerializedModuleLoader.h"
|
|
#include "llvm/Support/Debug.h"
|
|
#include "llvm/Support/raw_ostream.h"
|
|
|
|
using namespace swift;
|
|
|
|
bool swift::parseASTSection(SerializedModuleLoader *SML, StringRef buf,
|
|
SmallVectorImpl<std::string> &foundModules) {
|
|
if (!SerializedModuleLoader::isSerializedAST(buf))
|
|
return false;
|
|
|
|
// An AST section consists of one or more AST modules, optionally with
|
|
// headers. Iterate over all AST modules.
|
|
while (!buf.empty()) {
|
|
auto info = SerializedModuleLoader::validateSerializedAST(buf);
|
|
|
|
assert(info.name.size() < (2 << 10) && "name failed sanity check");
|
|
|
|
if (info.status == ModuleStatus::Valid) {
|
|
assert(info.bytes != 0);
|
|
if (!info.name.empty()) {
|
|
StringRef moduleData = buf.substr(0, info.bytes);
|
|
std::unique_ptr<llvm::MemoryBuffer> bitstream(
|
|
llvm::MemoryBuffer::getMemBuffer(moduleData, info.name, false));
|
|
|
|
// Register the memory buffer.
|
|
SML->registerMemoryBuffer(info.name, std::move(bitstream));
|
|
foundModules.push_back(info.name);
|
|
}
|
|
} else {
|
|
llvm::dbgs() << "Unable to load module";
|
|
if (!info.name.empty())
|
|
llvm::dbgs() << '\'' << info.name << '\'';
|
|
llvm::dbgs() << ".\n";
|
|
}
|
|
|
|
if (info.bytes == 0)
|
|
return false;
|
|
|
|
if (info.bytes > buf.size()) {
|
|
llvm::dbgs() << "AST section too small.\n";
|
|
return false;
|
|
}
|
|
|
|
buf = buf.substr(info.bytes);
|
|
}
|
|
|
|
return true;
|
|
}
|