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view dmd2/import.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 | f04dde6e882c |
children | 54b3c1394d62 |
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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_IMPORT_H #define DMD_IMPORT_H #ifdef __DMC__ #pragma once #endif /* __DMC__ */ #include "dsymbol.h" struct Identifier; struct Scope; struct OutBuffer; struct Module; struct Package; struct AliasDeclaration; #ifdef _DH struct HdrGenState; #endif struct Import : Dsymbol { Array *packages; // array of Identifier's representing packages Identifier *id; // module Identifier Identifier *aliasId; int isstatic; // !=0 if static import enum PROT protection; // Pairs of alias=name to bind into current namespace Array names; Array aliases; Array aliasdecls; // AliasDeclarations for names/aliases Module *mod; Package *pkg; // leftmost package/module Import(Loc loc, Array *packages, Identifier *id, Identifier *aliasId, int isstatic); void addAlias(Identifier *name, Identifier *alias); const char *kind(); enum PROT prot(); Dsymbol *syntaxCopy(Dsymbol *s); // copy only syntax trees void load(Scope *sc); void semantic(Scope *sc); void semantic2(Scope *sc); Dsymbol *toAlias(); int addMember(Scope *sc, ScopeDsymbol *s, int memnum); Dsymbol *search(Loc loc, Identifier *ident, int flags); int overloadInsert(Dsymbol *s); void toCBuffer(OutBuffer *buf, HdrGenState *hgs); Import *isImport() { return this; } }; #endif /* DMD_IMPORT_H */