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Error message for calling a function with a missing 'this' arg.

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This commit is contained in:
Christian Kamm 2008-07-29 10:29:52 +02:00
parent d9f85de2a1
commit 3db56c7a17
4 changed files with 37 additions and 28 deletions
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4
gen/classes.cpp
View file

@ -798,7 +798,7 @@ DValue* DtoNewClass(TypeClass* tc, NewExp* newexp)
{
DtoForceDeclareDsymbol(newexp->allocator);
DFuncValue dfn(newexp->allocator, newexp->allocator->ir.irFunc->func);
DValue* res = DtoCallFunction(NULL, &dfn, newexp->newargs);
DValue* res = DtoCallFunction(newexp->loc, NULL, &dfn, newexp->newargs);
mem = DtoBitCast(res->getRVal(), DtoType(tc), ".newclass_custom");
}
// default allocator
@ -852,7 +852,7 @@ DValue* DtoNewClass(TypeClass* tc, NewExp* newexp)
assert(newexp->arguments != NULL);
DtoForceDeclareDsymbol(newexp->member);
DFuncValue dfn(newexp->member, newexp->member->ir.irFunc->func, mem);
return DtoCallFunction(tc, &dfn, newexp->arguments);
return DtoCallFunction(newexp->loc, tc, &dfn, newexp->arguments);
}
// return default constructed class

2
gen/llvmhelpers.h
View file

@ -118,6 +118,6 @@ const LLFunctionType* DtoExtractFunctionType(const LLType* type);
void DtoBuildDVarArgList(std::vector<LLValue*>& args, llvm::PAListPtr& palist, TypeFunction* tf, Expressions* arguments, size_t argidx);
///
DValue* DtoCallFunction(Type* resulttype, DValue* fnval, Expressions* arguments);
DValue* DtoCallFunction(Loc& loc, Type* resulttype, DValue* fnval, Expressions* arguments);
#endif

57
gen/tocall.cpp
View file

@ -180,7 +180,7 @@ void DtoBuildDVarArgList(std::vector<LLValue*>& args, llvm::PAListPtr& palist, T
}
DValue* DtoCallFunction(Type* resulttype, DValue* fnval, Expressions* arguments)
DValue* DtoCallFunction(Loc& loc, Type* resulttype, DValue* fnval, Expressions* arguments)
{
// the callee D type
Type* calleeType = fnval->getType();
@ -224,31 +224,40 @@ DValue* DtoCallFunction(Type* resulttype, DValue* fnval, Expressions* arguments)
args.push_back(retvar);
}
// then comes the 'this' argument
if (dfnval && dfnval->vthis)
// then comes a context argument...
if(usesthis || delegatecall || nestedcall)
{
LLValue* thisarg = DtoBitCast(dfnval->vthis, argiter->get());
++argiter;
args.push_back(thisarg);
}
// or a delegate context arg
else if (delegatecall)
{
LLValue* ctxarg = DtoLoad(DtoGEPi(fnval->getRVal(), 0,0));
assert(ctxarg->getType() == argiter->get());
++argiter;
args.push_back(ctxarg);
}
// or a nested function context arg
else if (nestedcall)
{
LLValue* contextptr = DtoNestedContext(dfnval->func->toParent2()->isFuncDeclaration());
if (!contextptr)
contextptr = getNullPtr(getVoidPtrType());
// ... which can be a 'this' argument
if (dfnval && dfnval->vthis)
{
LLValue* thisarg = DtoBitCast(dfnval->vthis, argiter->get());
++argiter;
args.push_back(thisarg);
}
// ... or a delegate context arg
else if (delegatecall)
{
LLValue* ctxarg = DtoLoad(DtoGEPi(fnval->getRVal(), 0,0));
assert(ctxarg->getType() == argiter->get());
++argiter;
args.push_back(ctxarg);
}
// ... or a nested function context arg
else if (nestedcall)
{
LLValue* contextptr = DtoNestedContext(dfnval->func->toParent2()->isFuncDeclaration());
if (!contextptr)
contextptr = getNullPtr(getVoidPtrType());
else
contextptr = DtoBitCast(contextptr, getVoidPtrType());
++argiter;
args.push_back(contextptr);
}
else
contextptr = DtoBitCast(contextptr, getVoidPtrType());
++argiter;
args.push_back(contextptr);
{
error(loc, "Context argument required but none given");
fatal();
}
}
// handle the rest of the arguments based on param passing style

2
gen/toir.cpp
View file

@ -886,7 +886,7 @@ DValue* CallExp::toElem(IRState* p)
}
}
return DtoCallFunction(type, fnval, arguments);
return DtoCallFunction(loc, type, fnval, arguments);
}
//////////////////////////////////////////////////////////////////////////////////////////