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Make "`aa[key]`" use the same runtime call as "`key in aa`". The runtime calls these were using were different, but with equivalent definitions. With `ldc -O3`, the following functions now all compile to the exact same code: {{{ int[int] y; void foo(int x) { if (x in y) { auto z = x in y; sink(*z); } } void bar(int x) { if (x in y) { sink(y[x]); } } void baz(int x) { if (auto p = x in y) { sink(*p); } } }}}
author Frits van Bommel <fvbommel wxs.nl>
date Mon, 25 May 2009 12:50:40 +0200
parents aaade6ded589
children
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// Compiler implementation of the D programming language
// Copyright (c) 1999-2006 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_VERSION_H
#define DMD_VERSION_H

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

#include "dsymbol.h"

struct OutBuffer;
struct HdrGenState;

struct DebugSymbol : Dsymbol
{
    unsigned level;

    DebugSymbol(Loc loc, Identifier *ident);
    DebugSymbol(Loc loc, unsigned level);
    Dsymbol *syntaxCopy(Dsymbol *);

    int addMember(Scope *sc, ScopeDsymbol *s, int memnum);
    void semantic(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
    const char *kind();
};

struct VersionSymbol : Dsymbol
{
    unsigned level;

    VersionSymbol(Loc loc, Identifier *ident);
    VersionSymbol(Loc loc, unsigned level);
    Dsymbol *syntaxCopy(Dsymbol *);

    int addMember(Scope *sc, ScopeDsymbol *s, int memnum);
    void semantic(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
    const char *kind();
};

#endif /* DMD_VERSION_H */