| /* |
| * Copyright 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #pragma once |
| |
| #include <iostream> |
| #include <map> |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| #include <llvm/ADT/StringRef.h> |
| |
| #include "Utils.h" |
| |
| enum class DeclarationType { |
| function, |
| variable, |
| inconsistent, |
| }; |
| |
| static const char* declarationTypeName(DeclarationType type) { |
| switch (type) { |
| case DeclarationType::function: |
| return "function"; |
| case DeclarationType::variable: |
| return "variable"; |
| case DeclarationType::inconsistent: |
| return "inconsistent"; |
| } |
| } |
| |
| struct CompilationType { |
| std::string arch; |
| int api_level; |
| |
| private: |
| auto tie() const { |
| return std::tie(arch, api_level); |
| } |
| |
| public: |
| bool operator<(const CompilationType& other) const { |
| return tie() < other.tie(); |
| } |
| |
| bool operator==(const CompilationType& other) const { |
| return tie() == other.tie(); |
| } |
| |
| std::string describe() const { |
| return arch + "-" + std::to_string(api_level); |
| } |
| }; |
| |
| struct DeclarationAvailability { |
| int introduced = 0; |
| int deprecated = 0; |
| int obsoleted = 0; |
| |
| void dump(std::ostream& out = std::cout) const { |
| bool need_comma = false; |
| auto comma = [&out, &need_comma]() { |
| if (!need_comma) { |
| need_comma = true; |
| return; |
| } |
| out << ", "; |
| }; |
| |
| if (introduced != 0) { |
| comma(); |
| out << "introduced = " << introduced; |
| } |
| if (deprecated != 0) { |
| comma(); |
| out << "deprecated = " << deprecated; |
| } |
| if (obsoleted != 0) { |
| comma(); |
| out << "obsoleted = " << obsoleted; |
| } |
| } |
| |
| bool empty() const { |
| return !(introduced || deprecated || obsoleted); |
| } |
| |
| auto tie() const { |
| return std::tie(introduced, deprecated, obsoleted); |
| } |
| |
| bool operator==(const DeclarationAvailability& rhs) const { |
| return this->tie() == rhs.tie(); |
| } |
| |
| bool operator!=(const DeclarationAvailability& rhs) const { |
| return !(*this == rhs); |
| } |
| |
| std::string describe() const { |
| return std::string("[") + std::to_string(introduced) + "," + std::to_string(deprecated) + "," + |
| std::to_string(obsoleted) + "]"; |
| } |
| }; |
| |
| struct DeclarationLocation { |
| std::string filename; |
| unsigned line_number; |
| unsigned column; |
| DeclarationType type; |
| bool is_extern; |
| bool is_definition; |
| DeclarationAvailability availability; |
| |
| auto tie() const { |
| return std::tie(filename, line_number, column, type, is_extern, is_definition); |
| } |
| |
| bool operator<(const DeclarationLocation& other) const { |
| return tie() < other.tie(); |
| } |
| |
| bool operator==(const DeclarationLocation& other) const { |
| return tie() == other.tie(); |
| } |
| }; |
| |
| struct Declaration { |
| std::string name; |
| std::set<DeclarationLocation> locations; |
| |
| bool hasDefinition() const { |
| for (const auto& location : locations) { |
| if (location.is_definition) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| DeclarationType type() const { |
| DeclarationType result = locations.begin()->type; |
| for (const DeclarationLocation& location : locations) { |
| if (location.type != result) { |
| result = DeclarationType::inconsistent; |
| } |
| } |
| return result; |
| } |
| |
| void dump(const std::string& base_path = "", std::ostream& out = std::cout) const { |
| out << " " << name << " declared in " << locations.size() << " locations:\n"; |
| for (const DeclarationLocation& location : locations) { |
| const char* var_type = declarationTypeName(location.type); |
| const char* declaration_type = location.is_definition ? "definition" : "declaration"; |
| const char* linkage = location.is_extern ? "extern" : "static"; |
| |
| std::string filename; |
| if (llvm::StringRef(location.filename).startswith(base_path)) { |
| filename = location.filename.substr(base_path.size()); |
| } else { |
| filename = location.filename; |
| } |
| |
| out << " " << linkage << " " << var_type << " " << declaration_type << " @ " |
| << filename << ":" << location.line_number << ":" << location.column; |
| |
| if (!location.availability.empty()) { |
| out << "\t["; |
| location.availability.dump(out); |
| out << "]"; |
| } else { |
| out << "\t[no availability]"; |
| } |
| |
| out << "\n"; |
| } |
| } |
| }; |
| |
| namespace clang { |
| class ASTUnit; |
| } |
| |
| class HeaderDatabase { |
| public: |
| std::map<std::string, Declaration> declarations; |
| |
| void parseAST(clang::ASTUnit* ast); |
| |
| void dump(const std::string& base_path = "", std::ostream& out = std::cout) const { |
| out << "HeaderDatabase contains " << declarations.size() << " declarations:\n"; |
| for (const auto& pair : declarations) { |
| pair.second.dump(base_path, out); |
| } |
| } |
| }; |