view gen/logger.cpp @ 1404:11b122f92136

Now that templates instantiations are no longer emitted for all modules that even blink at them they seem to break due to being linkonce (if compiled with any optimization level > 0), so let's give them weak linkage instead. The difference is that unreferenced linkonce symbols can be deleted, while weak symbols need to be preserved.
author Frits van Bommel <fvbommel wxs.nl>
date Thu, 21 May 2009 15:23:28 +0200
parents e7f0c2b48047
children 2292878925f4
line wrap: on
line source

#include <cassert>
#include <cstdarg>
#include <cstdio>
#include <cstdlib>
#include <fstream>
#include <string>

#include "mars.h"

#include "llvm/Support/CommandLine.h"
#include "gen/logger.h"

namespace Logger
{
    static std::string indent_str;

    llvm::cl::opt<bool> _enabled("vv",
        llvm::cl::desc("Very verbose"),
        llvm::cl::ZeroOrMore);

    void indent()
    {
        if (_enabled) {
            indent_str += "* ";
        }
    }
    void undent()
    {
        if (_enabled) {
            assert(!indent_str.empty());
            indent_str.resize(indent_str.size()-2);
        }
    }
    llvm::OStream cout()
    {
        if (_enabled)
            return llvm::cout << indent_str;
        else
            return 0;
    }
    void println(const char* fmt,...)
    {
        if (_enabled) {
            printf("%s", 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("%s", 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(Loc loc, const char* fmt,...)
    {
        va_list va;
        va_start(va,fmt);
        vwarning(loc,fmt,va);
        va_end(va);
    }
}