view dmd/hdrgen.c @ 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 b30fe7e1dbb9
children
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// Compiler implementation of the D programming language
// Copyright (c) 1999-2006 by Digital Mars
// All Rights Reserved
// Initial header generation implementation by Dave Fladebo
// http://www.digitalmars.com
// License for redistribution is by either the Artistic License
// in artistic.txt, or the GNU General Public License in gnu.txt.
// See the included readme.txt for details.

// Routines to emit header files

#ifdef _DH

#define PRETTY_PRINT
#define TEST_EMIT_ALL  0	// For Testing

#define LOG 0

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#if __DMC__
#include <complex.h>
#endif

#include "rmem.h"

#include "id.h"
#include "init.h"

#include "attrib.h"
#include "cond.h"
#include "enum.h"
#include "import.h"
#include "module.h"
#include "mtype.h"
#include "scope.h"
#include "staticassert.h"
#include "template.h"
#include "utf.h"
#include "version.h"

#include "declaration.h"
#include "aggregate.h"
#include "expression.h"
#include "statement.h"
#include "mtype.h"
#include "hdrgen.h"

void argsToCBuffer(OutBuffer *buf, Array *arguments, HdrGenState *hgs);

void Module::genhdrfile()
{
    OutBuffer hdrbufr;

    hdrbufr.printf("// D import file generated from '%s'", srcfile->toChars());
    hdrbufr.writenl();

    HdrGenState hgs;
    memset(&hgs, 0, sizeof(hgs));
    hgs.hdrgen = 1;

    toCBuffer(&hdrbufr, &hgs);

    // Transfer image to file
    hdrfile->setbuffer(hdrbufr.data, hdrbufr.offset);
    hdrbufr.data = NULL;

    char *pt = FileName::path(hdrfile->toChars());
    if (*pt)
	FileName::ensurePathExists(pt);
    mem.free(pt);
    hdrfile->writev();
}


void Module::toCBuffer(OutBuffer *buf, HdrGenState *hgs)
{
    if (md)
    {
        buf->writestring("module ");
	buf->writestring(md->toChars());
        buf->writebyte(';');
        buf->writenl();
    }

    for (int i = 0; i < members->dim; i++)
    {   Dsymbol *s = (Dsymbol *)members->data[i];

        s->toHBuffer(buf, hgs);
    }
}


void Dsymbol::toHBuffer(OutBuffer *buf, HdrGenState *hgs)
{
    toCBuffer(buf, hgs);
}


/*************************************/

#endif // #ifdef _DH