18cee3e8e6
For source files (C++, Fortran, CMake) add copyright and license. For documentation files add just copyright. Original-commit: flang-compiler/f18@38381aed83 Reviewed-on: https://github.com/flang-compiler/f18/pull/74
90 lines
2.6 KiB
C++
90 lines
2.6 KiB
C++
// Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
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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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#ifndef FORTRAN_PARSER_INSTRUMENTED_PARSER_H_
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#define FORTRAN_PARSER_INSTRUMENTED_PARSER_H_
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#include "message.h"
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#include "parse-state.h"
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#include "provenance.h"
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#include "user-state.h"
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#include <cstddef>
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#include <map>
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#include <ostream>
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namespace Fortran {
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namespace parser {
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class ParsingLog {
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public:
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ParsingLog() {}
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void clear();
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bool Fails(const char *at, const MessageFixedText &tag, ParseState &);
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void Note(const char *at, const MessageFixedText &tag, bool pass,
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const ParseState &);
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void Dump(std::ostream &, const CookedSource &) const;
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private:
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struct LogForPosition {
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struct Entry {
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Entry() {}
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bool pass{true};
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int count{0};
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bool deferred{false};
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Messages messages;
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};
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std::map<MessageFixedText, Entry> perTag;
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};
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std::map<std::size_t, LogForPosition> perPos_;
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};
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template<typename PA> class InstrumentedParser {
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public:
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using resultType = typename PA::resultType;
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constexpr InstrumentedParser(const InstrumentedParser &) = default;
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constexpr InstrumentedParser(const MessageFixedText &tag, const PA &parser)
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: tag_{tag}, parser_{parser} {}
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std::optional<resultType> Parse(ParseState &state) const {
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if (UserState * ustate{state.userState()}) {
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if (ParsingLog * log{ustate->log()}) {
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const char *at{state.GetLocation()};
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if (log->Fails(at, tag_, state)) {
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return {};
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}
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Messages messages{std::move(state.messages())};
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std::optional<resultType> result{parser_.Parse(state)};
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log->Note(at, tag_, result.has_value(), state);
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messages.Annex(state.messages());
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state.messages() = std::move(messages);
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return result;
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}
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}
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return parser_.Parse(state);
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}
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private:
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const MessageFixedText tag_;
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const PA parser_;
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};
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template<typename PA>
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inline constexpr auto instrumented(
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const MessageFixedText &tag, const PA &parser) {
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return InstrumentedParser{tag, parser};
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}
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} // namespace parser
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} // namespace Fortran
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#endif // FORTRAN_PARSER_INSTRUMENTED_PARSER_H_
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