static LineInfo GetFileInfo(SourceLocation loc) {
std::ifstream stream(loc.filename);
if (!stream.good()) {
throw InternalCompilerError(StringBuilder(
"Can't reopen file '", loc.filename, "' after error found in it."));
}
// We need to iterate through the file to get the line number information.
// Can't store this in SourceLocation because it needs to be as small as
// possible. This is fine, because we would only need to do it once for bad
// input in a compilation pass, and we are already at *at least* O(n) on the
// file length
int lineCount = 0;
std::array<char, 256> lineArray;
while (stream.tellg() < loc.offset) {
lineCount++;
stream.getline(&lineArray[0], 256);
}
std::string line(&lineArray[0]);
int lineOffset = line.size() - (stream.tellg() - loc.offset);
return LineInfo(loc.filename, line, lineCount, lineOffset);
}
ModifierDefinition const& CompilerContext::functionModifier(string const& _name) const
{
solAssert(!m_inheritanceHierarchy.empty(), "No inheritance hierarchy set.");
for (ContractDefinition const* contract: m_inheritanceHierarchy)
for (ModifierDefinition const* modifier: contract->functionModifiers())
if (modifier->name() == _name)
return *modifier;
BOOST_THROW_EXCEPTION(InternalCompilerError()
<< errinfo_comment("Function modifier " + _name + " not found."));
}