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https://github.com/google/sandboxed-api.git
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4b56d5606d
The libclang based header generator disallows functions that pass structs (or more generally "record types") by value. While this can be implemented, the such functions as emitted by the clang_generator never worked. We should revisit this when we implement support for passing 128-bit integer types directly, as those will work the same as small structs. PiperOrigin-RevId: 485522603 Change-Id: Iae8284720da52496d7a48fe3ca3c3c8605e6d19d
82 lines
2.8 KiB
C++
82 lines
2.8 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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// https://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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#ifndef SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_
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#define SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_
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#include <string>
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#include <vector>
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#include "absl/container/btree_map.h"
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#include "absl/status/status.h"
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#include "absl/status/statusor.h"
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#include "absl/strings/string_view.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/Type.h"
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#include "sandboxed_api/tools/clang_generator/types.h"
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namespace sapi {
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namespace internal {
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absl::StatusOr<std::string> ReformatGoogleStyle(const std::string& filename,
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const std::string& code,
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int column_limit = -1);
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} // namespace internal
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class GeneratorOptions;
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// Responsible for emitting the actual textual representation of the generated
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// Sandboxed API header.
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class Emitter {
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public:
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using RenderedTypesMap =
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absl::btree_map<std::string, std::vector<std::string>>;
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// Adds the set of previously collected types to the emitter, recording the
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// spelling of each one. Types that are not supported by the current
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// generator settings or that are unwanted/unnecessary are skipped. Filtered
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// types include C++ constructs or well-known standard library elements. The
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// latter can be replaced by including the correct headers in the emitted
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// header.
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void AddTypesFiltered(const QualTypeSet& types);
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absl::Status AddFunction(clang::FunctionDecl* decl);
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// Outputs a formatted header for a list of functions and their related types.
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absl::StatusOr<std::string> EmitHeader(const GeneratorOptions& options);
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private:
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void EmitType(clang::QualType qual);
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protected:
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// Maps namespace to a list of spellings for types
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RenderedTypesMap rendered_types_;
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// Functions for sandboxed API, including their bodies
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std::vector<std::string> functions_;
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};
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// Constructs an include guard name for the given filename. The name is of the
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// same form as the include guards in this project and conforms to the Google
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// C++ style. For example,
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// sandboxed_api/examples/zlib/zlib-sapi.sapi.h
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// will be mapped to
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// SANDBOXED_API_EXAMPLES_ZLIB_ZLIB_SAPI_SAPI_H_
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std::string GetIncludeGuard(absl::string_view filename);
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} // namespace sapi
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#endif // SANDBOXED_API_TOOLS_CLANG_GENERATOR_EMITTER_H_
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