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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 c53b6e3fe49a
children 1b24e9c7cc26
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// Compiler implementation of the D programming language
// Copyright (c) 2006-2007 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_ARRAYTYPES_H
#define DMD_ARRAYTYPES_H

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


#include "root.h"

struct Expression;
struct Statement;
struct BaseClass;
struct TemplateParameter;
struct FuncDeclaration;
struct Identifier;
struct Initializer;

struct TemplateParameters : Array { };

struct Expressions : Array { };

struct Statements : Array { };

struct BaseClasses : Array { };

struct ClassDeclarations : Array { };

struct Dsymbols : Array { };

struct Objects : Array { };

struct FuncDeclarations : Array { };

struct Arguments : Array { };

struct Identifiers : Array { };

struct Initializers : Array { };

#endif