view dmd2/lib.h @ 1499:df11cdec45a2

Another shot at fixing the issues with (constant) struct literals and their addresses. See DMD2682, #218, #324. The idea is to separate the notion of const from 'this variable can always be replaced with its initializer' in the frontend. To do that, I introduced Declaration::isSameAsInitializer, which is overridden in VarDeclaration to return false for constants that have a struct literal initializer. So {{{ const S s = S(5); void foo() { auto ps = &s; } // is no longer replaced by void foo() { auto ps = &(S(5)); } }}} To make taking the address of a struct constant with a struct-initializer outside of function scope possible, I made sure that AddrExp::optimize doesn't try to run the argument's optimization with WANTinterpret - that'd again replace the constant with a struct literal temporary.
author Christian Kamm <kamm incasoftware de>
date Sun, 14 Jun 2009 19:49:58 +0200
parents 638d16625da2
children
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// Compiler implementation of the D programming language
// Copyright (c) 1999-2008 by Digital Mars
// All Rights Reserved
// written by Walter Bright
// 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.

#ifndef DMD_LIB_H
#define DMD_LIB_H

#ifdef __DMC__
#pragma once
#endif /* __DMC__ */

struct ObjModule;

struct ObjSymbol
{
    char *name;
    ObjModule *om;
};

struct Library
{
    File *libfile;
    Array objmodules;	// ObjModule[]
    Array objsymbols;	// ObjSymbol[]

    StringTable tab;

    Library();
    void setFilename(char *dir, char *filename);
    void addObject(const char *module_name, void *buf, size_t buflen);
    void addLibrary(void *buf, size_t buflen);
    void write();

  private:
    void addSymbol(ObjModule *om, char *name, int pickAny = 0);
    void scanObjModule(ObjModule *om);
    unsigned short numDictPages(unsigned padding);
    int FillDict(unsigned char *bucketsP, unsigned short uNumPages);
    void WriteLibToBuffer(OutBuffer *libbuf);
};

#endif /* DMD_LIB_H */