view dmd2/attrib.h @ 1047:6bb04dbee21f

Some calling convention work for x86-64: - Implement x86-64 extern(C), hopefully correctly. - Tried to be a bit smarter about extern(D) while I was there. Interestingly, this code seems to be generating more efficient code than gcc and llvm-gcc in some edge cases, like returning a `{ [7 x i8] }` loaded from a stack slot from an extern(C) function. (gcc generates 7 1-byte loads, while this code generates a 4-byte, a 2-byte and a 1-byte load) I also added some changes to make sure structs being returned from functions or passed in as parameters are stored in memory where the rest of the backend seems to expect them to be. These should be removed when support for first-class aggregates improves.
author Frits van Bommel <fvbommel wxs.nl>
date Fri, 06 Mar 2009 16:00:47 +0100
parents 2eaefe4a550b
children 638d16625da2
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// Compiler implementation of the D programming language
// Copyright (c) 1999-2007 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_ATTRIB_H
#define DMD_ATTRIB_H

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

#include "dsymbol.h"

struct Expression;
struct Statement;
struct LabelDsymbol;
struct Initializer;
struct Module;
struct Condition;
#ifdef _DH
struct HdrGenState;
#endif

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

struct AttribDeclaration : Dsymbol
{
    Array *decl;	// array of Dsymbol's

    AttribDeclaration(Array *decl);
    virtual Array *include(Scope *sc, ScopeDsymbol *s);
    int addMember(Scope *sc, ScopeDsymbol *s, int memnum);
    void semantic(Scope *sc);
    void semantic2(Scope *sc);
    void semantic3(Scope *sc);
    void inlineScan();
    void addComment(unsigned char *comment);
    void emitComment(Scope *sc);
    const char *kind();
    int oneMember(Dsymbol **ps);
    int hasPointers();
    void checkCtorConstInit();
    void addLocalClass(ClassDeclarations *);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
    AttribDeclaration *isAttribDeclaration() { return this; }

    virtual void toObjFile(int multiobj);			// compile to .obj file
    int cvMember(unsigned char *p);
};

struct StorageClassDeclaration: AttribDeclaration
{
    unsigned stc;

    StorageClassDeclaration(unsigned stc, Array *decl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    void semantic(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};

struct LinkDeclaration : AttribDeclaration
{
    enum LINK linkage;

    LinkDeclaration(enum LINK p, Array *decl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    void semantic(Scope *sc);
    void semantic3(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
    char *toChars();
};

struct ProtDeclaration : AttribDeclaration
{
    enum PROT protection;

    ProtDeclaration(enum PROT p, Array *decl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    void semantic(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};

struct AlignDeclaration : AttribDeclaration
{
    unsigned salign;

    AlignDeclaration(Loc loc, unsigned sa, Array *decl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    void semantic(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};

struct AnonDeclaration : AttribDeclaration
{
    int isunion;
    Scope *scope;		// !=NULL means context to use
    int sem;			// 1 if successful semantic()

    AnonDeclaration(Loc loc, int isunion, Array *decl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    void semantic(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
    const char *kind();

    // LDC
    void toObjFile(int multiobj);           // compile to .obj file
};

struct PragmaDeclaration : AttribDeclaration
{
    Expressions *args;		// array of Expression's

    PragmaDeclaration(Loc loc, Identifier *ident, Expressions *args, Array *decl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    void semantic(Scope *sc);
    int oneMember(Dsymbol **ps);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
    const char *kind();
    void toObjFile(int multiobj);			// compile to .obj file
};

struct ConditionalDeclaration : AttribDeclaration
{
    Condition *condition;
    Array *elsedecl;	// array of Dsymbol's for else block

    ConditionalDeclaration(Condition *condition, Array *decl, Array *elsedecl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    int oneMember(Dsymbol **ps);
    void emitComment(Scope *sc);
    Array *include(Scope *sc, ScopeDsymbol *s);
    void addComment(unsigned char *comment);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};

struct StaticIfDeclaration : ConditionalDeclaration
{
    ScopeDsymbol *sd;
    int addisdone;

    StaticIfDeclaration(Condition *condition, Array *decl, Array *elsedecl);
    Dsymbol *syntaxCopy(Dsymbol *s);
    int addMember(Scope *sc, ScopeDsymbol *s, int memnum);
    void semantic(Scope *sc);
    const char *kind();
};

// Mixin declarations

struct CompileDeclaration : AttribDeclaration
{
    Expression *exp;

    ScopeDsymbol *sd;
    int compiled;

    CompileDeclaration(Loc loc, Expression *exp);
    Dsymbol *syntaxCopy(Dsymbol *s);
    int addMember(Scope *sc, ScopeDsymbol *sd, int memnum);
    void compileIt(Scope *sc);
    void semantic(Scope *sc);
    void toCBuffer(OutBuffer *buf, HdrGenState *hgs);
};

#endif /* DMD_ATTRIB_H */