Mercurial > projects > ldc
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 |
line wrap: on
line source
#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