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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 e961851fb8be
children 44b145be2ef5
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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_IDENTIFIER_H
#define DMD_IDENTIFIER_H

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

#include "root.h"

namespace llvm
{
    class Value;
}

struct Identifier : Object
{
    int value;
    const char *string;
    unsigned len;

    Identifier(const char *string, int value);
    int equals(Object *o);
    hash_t hashCode();
    int compare(Object *o);
    void print();
    char *toChars();
#ifdef _DH
    char *toHChars();
#endif
    const char *toHChars2();
    int dyncast();

    static Identifier *generateId(const char *prefix);
    static Identifier *generateId(const char *prefix, size_t i);
};

#endif /* DMD_IDENTIFIER_H */