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/*
* MRustC - Rust Compiler
* - By John Hodge (Mutabah/thePowersGang)
*
* include/span.hpp
* - Spans and error handling
*/
#pragma once
enum ErrorType
{
E0000,
};
enum WarningType
{
W0000,
};
class Position;
struct ProtoSpan
{
::std::string filename;
unsigned int start_line;
unsigned int start_ofs;
};
struct Span
{
::std::string filename;
unsigned int start_line;
unsigned int start_ofs;
unsigned int end_line;
unsigned int end_ofs;
Span(::std::string filename, unsigned int start_line, unsigned int start_ofs, unsigned int end_line, unsigned int end_ofs):
filename(filename),
start_line(start_line),
start_ofs(start_ofs),
end_line(end_line),
end_ofs(end_ofs)
{}
Span(const Span& x);
Span(const Position& position);
Span():
filename("")/*,
start_line(0), start_ofs(0),
end_line(0), end_ofs(0) // */
{}
void bug(::std::function<void(::std::ostream&)> msg) const;
void error(ErrorType tag, ::std::function<void(::std::ostream&)> msg) const;
void warning(WarningType tag, ::std::function<void(::std::ostream&)> msg) const;
void note(::std::function<void(::std::ostream&)> msg) const;
};
template<typename T>
struct Spanned
{
Span m_span;
T m_item;
};
#define ERROR(span, code, msg) do { ::Span(span).error(code, [&](::std::ostream& os) { os << msg; }); throw ::std::runtime_error("Error fell through" #code); } while(0)
#define WARNING(span, code, msg) do { ::Span(span).warning(code, [&](::std::ostream& os) { os << msg; }); } while(0)
#define BUG(span, msg) do { ::Span(span).bug([&](::std::ostream& os) { os << msg; }); throw ::std::runtime_error("Bug fell through"); } while(0)
#define TODO(span, msg) do { ::Span(span).bug([&](::std::ostream& os) { os << "TODO: " << msg; }); throw ::std::runtime_error("Bug (todo) fell through"); } while(0)
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