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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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57
gen/tocall.cpp
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@ -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