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//===--- Serialization.cpp - Write Swift modules --------------------------===//
//
// 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/Serialization/Serialization.h"
#include "swift/APIDigester/ModuleAnalyzerNodes.h"
#include "swift/AST/DiagnosticsFrontend.h"
#include "swift/AST/FileSystem.h"
#include "swift/Subsystems.h"
#include "swift/SymbolGraphGen/SymbolGraphGen.h"
#include "swift/SymbolGraphGen/SymbolGraphOptions.h"
#include "llvm/Support/SmallVectorMemoryBuffer.h"
#include "llvm/Support/VirtualOutputBackend.h"
using namespace swift;
static ModuleDecl *getModule(ModuleOrSourceFile DC) {
if (auto M = DC.dyn_cast<ModuleDecl *>())
return M;
return DC.get<SourceFile *>()->getParentModule();
}
static ASTContext &getContext(ModuleOrSourceFile DC) {
return getModule(DC)->getASTContext();
}
static void emitABIDescriptor(ModuleOrSourceFile DC,
const SerializationOptions &options) {
using namespace swift::ide::api;
if (!options.ABIDescriptorPath.empty()) {
if (DC.is<ModuleDecl *>()) {
auto &OutputBackend = getContext(DC).getOutputBackend();
auto ABIDesFile = OutputBackend.createFile(options.ABIDescriptorPath);
if (!ABIDesFile) {
getContext(DC).Diags.diagnose(SourceLoc(), diag::error_opening_output,
options.ABIDescriptorPath,
toString(ABIDesFile.takeError()));
return;
}
SWIFT_DEFER {
if (auto E = ABIDesFile->keep()) {
getContext(DC).Diags.diagnose(SourceLoc(), diag::error_closing_output,
options.ABIDescriptorPath,
toString(std::move(E)));
return;
}
};
dumpModuleContent(DC.get<ModuleDecl *>(), *ABIDesFile, true,
options.emptyABIDescriptor);
}
}
}
void swift::serializeToBuffers(
ModuleOrSourceFile DC, const SerializationOptions &options,
std::unique_ptr<llvm::MemoryBuffer> *moduleBuffer,
std::unique_ptr<llvm::MemoryBuffer> *moduleDocBuffer,
std::unique_ptr<llvm::MemoryBuffer> *moduleSourceInfoBuffer,
const SILModule *M) {
// Serialization output is disabled.
if (options.OutputPath.empty())
return;
{
FrontendStatsTracer tracer(getContext(DC).Stats,
"Serialization, swiftmodule, to buffer");
llvm::SmallString<1024> buf;
llvm::raw_svector_ostream stream(buf);
serialization::writeToStream(stream, DC, M, options,
/*dependency info*/ nullptr);
bool hadError = withOutputPath(
getContext(DC).Diags, getContext(DC).getOutputBackend(),
options.OutputPath, [&](raw_ostream &out) {
out << stream.str();
return false;
});
if (hadError)
return;
emitABIDescriptor(DC, options);
if (moduleBuffer)
*moduleBuffer = std::make_unique<llvm::SmallVectorMemoryBuffer>(
std::move(buf), options.OutputPath,
/*RequiresNullTerminator=*/false);
}
if (!options.DocOutputPath.empty()) {
FrontendStatsTracer tracer(getContext(DC).Stats,
"Serialization, swiftdoc, to buffer");
llvm::SmallString<1024> buf;
llvm::raw_svector_ostream stream(buf);
serialization::writeDocToStream(stream, DC, options.GroupInfoPath);
(void)withOutputPath(getContext(DC).Diags,
getContext(DC).getOutputBackend(),
options.DocOutputPath, [&](raw_ostream &out) {
out << stream.str();
return false;
});
if (moduleDocBuffer)
*moduleDocBuffer = std::make_unique<llvm::SmallVectorMemoryBuffer>(
std::move(buf), options.DocOutputPath,
/*RequiresNullTerminator=*/false);
}
if (!options.SourceInfoOutputPath.empty()) {
FrontendStatsTracer tracer(getContext(DC).Stats,
"Serialization, swiftsourceinfo, to buffer");
llvm::SmallString<1024> buf;
llvm::raw_svector_ostream stream(buf);
serialization::writeSourceInfoToStream(stream, DC);
(void)withOutputPath(
getContext(DC).Diags, getContext(DC).getOutputBackend(),
options.SourceInfoOutputPath, [&](raw_ostream &out) {
out << stream.str();
return false;
});
if (moduleSourceInfoBuffer)
*moduleSourceInfoBuffer = std::make_unique<llvm::SmallVectorMemoryBuffer>(
std::move(buf), options.SourceInfoOutputPath,
/*RequiresNullTerminator=*/false);
}
}
void swift::serialize(
ModuleOrSourceFile DC, const SerializationOptions &options,
const symbolgraphgen::SymbolGraphOptions &symbolGraphOptions,
const SILModule *M,
const fine_grained_dependencies::SourceFileDepGraph *DG) {
assert(!options.OutputPath.empty());
if (options.OutputPath == "-") {
// Special-case writing to stdout.
serialization::writeToStream(llvm::outs(), DC, M, options, DG);
assert(options.DocOutputPath.empty());
return;
}
bool hadError = withOutputPath(
getContext(DC).Diags, getContext(DC).getOutputBackend(),
options.OutputPath, [&](raw_ostream &out) {
FrontendStatsTracer tracer(getContext(DC).Stats,
"Serialization, swiftmodule");
serialization::writeToStream(out, DC, M, options, DG);
return false;
});
if (hadError)
return;
if (!options.DocOutputPath.empty()) {
(void)withOutputPath(
getContext(DC).Diags, getContext(DC).getOutputBackend(),
options.DocOutputPath, [&](raw_ostream &out) {
FrontendStatsTracer tracer(getContext(DC).Stats,
"Serialization, swiftdoc");
serialization::writeDocToStream(out, DC, options.GroupInfoPath);
return false;
});
}
if (!options.SourceInfoOutputPath.empty()) {
(void)withOutputPath(
getContext(DC).Diags, getContext(DC).getOutputBackend(),
options.SourceInfoOutputPath, [&](raw_ostream &out) {
FrontendStatsTracer tracer(getContext(DC).Stats,
"Serialization, swiftsourceinfo");
serialization::writeSourceInfoToStream(out, DC);
return false;
});
}
if (!symbolGraphOptions.OutputDir.empty()) {
if (DC.is<ModuleDecl *>()) {
auto *M = DC.get<ModuleDecl *>();
FrontendStatsTracer tracer(getContext(DC).Stats,
"Serialization, symbolgraph");
symbolgraphgen::emitSymbolGraphForModule(M, symbolGraphOptions);
}
}
emitABIDescriptor(DC, options);
}
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