view gen/logger.cpp @ 468:45a67b6f1310

Removed the 'needsstorage' thing from Dsymbol. Arguments are not always given storage when applicable. This is not longer treat specially in this regard. Code for accessing nested variables and contexts rewritten. Probably more. Fairly well tested.
author Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
date Mon, 04 Aug 2008 02:59:34 +0200
parents b604c56945b0
children 661384d6a936
line wrap: on
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#include <cassert>
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <fstream>
#include <string>

#include "mars.h"

#include "gen/logger.h"

namespace Logger
{
    static std::string indent_str;
    static std::ofstream null_out("/dev/null");

    static bool _enabled = false;
    void indent()
    {
        if (_enabled) {
            indent_str += "* ";
        }
    }
    void undent()
    {
        if (_enabled) {
            assert(!indent_str.empty());
            indent_str.resize(indent_str.size()-2);
        }
    }
    std::ostream& cout()
    {
        if (_enabled)
            return std::cout << indent_str;
        else
            return null_out;
    }
    void println(const char* fmt,...)
    {
        if (_enabled) {
            printf(indent_str.c_str());
            va_list va;
            va_start(va,fmt);
            vprintf(fmt,va);
            va_end(va);
            printf("\n");
        }
    }
    void print(const char* fmt,...)
    {
        if (_enabled) {
            printf(indent_str.c_str());
            va_list va;
            va_start(va,fmt);
            vprintf(fmt,va);
            va_end(va);
        }
    }
    void enable()
    {
        _enabled = true;
    }
    void disable()
    {
        _enabled = false;
    }
    bool enabled()
    {
        return _enabled;
    }
    void attention(const Loc& loc, const char* fmt,...)
    {
        printf("Warning: %s: ", loc.toChars());
        va_list va;
        va_start(va,fmt);
        vprintf(fmt,va);
        va_end(va);
        printf("\n");
    }
}