view gen/classes.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 5d0c043ff131
children
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#ifndef LDC_GEN_CLASSES_H
#define LDC_GEN_CLASSES_H

#include "gen/structs.h"

/// Resolves the llvm type for a class declaration
void DtoResolveClass(ClassDeclaration* cd);

/// Provides the llvm declaration for a class declaration
void DtoDeclareClass(ClassDeclaration* cd);

/// Constructs the constant initializer for a class declaration
void DtoConstInitClass(ClassDeclaration* cd);

/// Provides the llvm definition for a class declaration
void DtoDefineClass(ClassDeclaration* cd);

/// Builds the initializer of cd's ClassInfo.
/// FIXME: this should be put into IrStruct and eventually IrClass.
LLConstant* DtoDefineClassInfo(ClassDeclaration* cd);

DValue* DtoNewClass(Loc loc, TypeClass* type, NewExp* newexp);
void DtoInitClass(TypeClass* tc, LLValue* dst);
DValue* DtoCallClassCtor(TypeClass* type, CtorDeclaration* ctor, Array* arguments, LLValue* mem);
void DtoFinalizeClass(LLValue* inst);

DValue* DtoCastClass(DValue* val, Type* to);
DValue* DtoDynamicCastObject(DValue* val, Type* to);

DValue* DtoCastInterfaceToObject(DValue* val, Type* to);
DValue* DtoDynamicCastInterface(DValue* val, Type* to);

LLValue* DtoIndexClass(LLValue* src, ClassDeclaration* sd, VarDeclaration* vd);

LLValue* DtoVirtualFunctionPointer(DValue* inst, FuncDeclaration* fdecl, char* name);

#endif