instrumented-parser.cpp
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//===-- lib/Parser/instrumented-parser.cpp --------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "flang/Parser/instrumented-parser.h"
#include "flang/Parser/message.h"
#include "flang/Parser/provenance.h"
#include "llvm/Support/raw_ostream.h"
#include <map>
namespace Fortran::parser {
void ParsingLog::clear() { perPos_.clear(); }
// In the logs, just use the addresses of the message texts to sort the
// map keys.
bool operator<(const MessageFixedText &x, const MessageFixedText &y) {
return x.text().begin() < y.text().begin();
}
bool ParsingLog::Fails(
const char *at, const MessageFixedText &tag, ParseState &state) {
std::size_t offset{reinterpret_cast<std::size_t>(at)};
auto posIter{perPos_.find(offset)};
if (posIter == perPos_.end()) {
return false;
}
auto tagIter{posIter->second.perTag.find(tag)};
if (tagIter == posIter->second.perTag.end()) {
return false;
}
auto &entry{tagIter->second};
if (entry.deferred && !state.deferMessages()) {
return false; // don't fail fast, we want to generate messages
}
++entry.count;
if (!state.deferMessages()) {
state.messages().Copy(entry.messages);
}
return !entry.pass;
}
void ParsingLog::Note(const char *at, const MessageFixedText &tag, bool pass,
const ParseState &state) {
std::size_t offset{reinterpret_cast<std::size_t>(at)};
auto &entry{perPos_[offset].perTag[tag]};
if (++entry.count == 1) {
entry.pass = pass;
entry.deferred = state.deferMessages();
if (!entry.deferred) {
entry.messages.Copy(state.messages());
}
} else {
CHECK(entry.pass == pass);
if (entry.deferred && !state.deferMessages()) {
entry.deferred = false;
entry.messages.Copy(state.messages());
}
}
}
void ParsingLog::Dump(
llvm::raw_ostream &o, const AllCookedSources &allCooked) const {
for (const auto &posLog : perPos_) {
const char *at{reinterpret_cast<const char *>(posLog.first)};
for (const auto &tagLog : posLog.second.perTag) {
Message{at, tagLog.first}.Emit(o, allCooked, true);
auto &entry{tagLog.second};
o << " " << (entry.pass ? "pass" : "fail") << " " << entry.count << '\n';
entry.messages.Emit(o, allCooked);
}
}
}
} // namespace Fortran::parser