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https://github.com/google/sandboxed-api.git
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dbaf95c724
This change should make it less confusing where utility code comes from. Having it in two places made sense when we were debating whether to publish Sandbox2 separately, but not any longer. Follow-up changes will move `sandbox2/util.h` and rename the remaining `sandbox2/util` folder. PiperOrigin-RevId: 351601640 Change-Id: I6256845261f610e590c25e2c59851cc51da2d778
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "sandboxed_api/tools/clang_generator/generator.h"
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#include <fstream>
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#include <iostream>
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#include "absl/status/status.h"
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#include "absl/status/statusor.h"
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#include "clang/AST/Type.h"
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#include "clang/Format/Format.h"
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#include "sandboxed_api/tools/clang_generator/diagnostics.h"
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#include "sandboxed_api/tools/clang_generator/emitter.h"
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#include "sandboxed_api/util/fileops.h"
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#include "sandboxed_api/util/status_macros.h"
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namespace sapi {
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namespace {
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// Replaces the file extension of a path name.
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std::string ReplaceFileExtension(absl::string_view path,
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absl::string_view new_extension) {
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auto last_slash = path.rfind('/');
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auto pos = path.rfind('.', last_slash);
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if (pos != absl::string_view::npos && last_slash != absl::string_view::npos) {
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pos += last_slash;
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}
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return absl::StrCat(path.substr(0, pos), new_extension);
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}
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inline absl::string_view ToStringView(llvm::StringRef ref) {
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return absl::string_view(ref.data(), ref.size());
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}
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} // namespace
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std::string GetOutputFilename(absl::string_view source_file) {
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return ReplaceFileExtension(source_file, ".sapi.h");
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}
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bool GeneratorASTVisitor::VisitFunctionDecl(clang::FunctionDecl* decl) {
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if (!decl->isCXXClassMember() && // Skip classes
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decl->isExternC() && // Skip non external functions
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!decl->isTemplated() && // Skip function templates
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// Process either all function or just the requested ones
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(options_.function_names.empty() ||
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options_.function_names.count(ToStringView(decl->getName())) > 0)) {
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functions_.push_back(decl);
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collector_.CollectRelatedTypes(decl->getDeclaredReturnType());
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for (const clang::ParmVarDecl* param : decl->parameters()) {
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collector_.CollectRelatedTypes(param->getType());
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}
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}
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return true;
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}
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void GeneratorASTConsumer::HandleTranslationUnit(clang::ASTContext& context) {
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std::cout << "Processing " << in_file_ << "\n";
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if (!visitor_.TraverseDecl(context.getTranslationUnitDecl())) {
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ReportFatalError(context.getDiagnostics(),
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context.getTranslationUnitDecl()->getBeginLoc(),
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"AST traversal exited early");
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}
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for (clang::QualType qual : visitor_.collector_.collected()) {
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emitter_.CollectType(qual);
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}
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for (clang::FunctionDecl* func : visitor_.functions_) {
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emitter_.CollectFunction(func);
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}
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}
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} // namespace sapi
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