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Parser::fetchSourceLocationFromComment(): Some general cleanup (renaming, wrapping, etc.)

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This commit is contained in:
Kamil Śliwak 2021-09-08 16:04:45 +02:00
parent e3a5f923eb
commit aa156ab6c7
1 changed files with 25 additions and 16 deletions
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41
libyul/AsmParser.cpp
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@ -130,37 +130,46 @@ void Parser::fetchSourceLocationFromComment()
if (m_scanner->currentCommentLiteral().empty())
return;
static regex const lineRE = std::regex(
static regex const tagRegex = regex(
R"~~(\s*@src\s+)~~" // tag: @src
R"~~((-1|\d+):(-1|\d+):(-1|\d+)(?:\s+|$))~~", // index and location, e.g.: 1:234:-1
std::regex_constants::ECMAScript | std::regex_constants::optimize
regex_constants::ECMAScript | regex_constants::optimize
);
string const text = m_scanner->currentCommentLiteral();
auto from = sregex_iterator(text.begin(), text.end(), lineRE);
string const commentLiteral = m_scanner->currentCommentLiteral();
SourceLocation const commentLocation = m_scanner->currentCommentLocation();
auto from = sregex_iterator(commentLiteral.begin(), commentLiteral.end(), tagRegex);
auto to = sregex_iterator();
for (auto const& matchResult: ranges::make_subrange(from, to))
for (auto const& tagMatch: ranges::make_subrange(from, to))
{
solAssert(matchResult.size() == 4, "");
solAssert(tagMatch.size() == 4, "");
auto const sourceIndex = toInt(matchResult[1].str());
auto const start = toInt(matchResult[2].str());
auto const end = toInt(matchResult[3].str());
optional<int> const sourceIndex = toInt(tagMatch[1].str());
optional<int> const start = toInt(tagMatch[2].str());
optional<int> const end = toInt(tagMatch[3].str());
auto const commentLocation = m_scanner->currentCommentLocation();
m_debugDataOverride = DebugData::create();
if (!sourceIndex || !start || !end)
m_errorReporter.syntaxError(6367_error, commentLocation, "Invalid value in source location mapping. Could not parse location specification.");
if (!sourceIndex.has_value() || !start.has_value() || !end.has_value())
m_errorReporter.syntaxError(
6367_error,
commentLocation,
"Invalid value in source location mapping. Could not parse location specification."
);
else if (sourceIndex == -1)
m_debugDataOverride = DebugData::create(SourceLocation{*start, *end, nullptr});
else if (!(sourceIndex >= 0 && m_sourceNames->count(static_cast<unsigned>(*sourceIndex))))
m_errorReporter.syntaxError(2674_error, commentLocation, "Invalid source mapping. Source index not defined via @use-src.");
m_debugDataOverride = DebugData::create(SourceLocation{start.value(), end.value(), nullptr});
else if (!(sourceIndex >= 0 && m_sourceNames->count(static_cast<unsigned>(sourceIndex.value()))))
m_errorReporter.syntaxError(
2674_error,
commentLocation,
"Invalid source mapping. Source index not defined via @use-src."
);
else
{
shared_ptr<string const> sourceName = m_sourceNames->at(static_cast<unsigned>(*sourceIndex));
shared_ptr<string const> sourceName = m_sourceNames->at(static_cast<unsigned>(sourceIndex.value()));
solAssert(sourceName, "");
m_debugDataOverride = DebugData::create(SourceLocation{*start, *end, move(sourceName)});
m_debugDataOverride = DebugData::create(SourceLocation{start.value(), end.value(), move(sourceName)});
}
}
}