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[svn r117] Initial working implementation of interfaces.

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Groundwork for all the different types of class/interface casts laid out.
This commit is contained in:
Tomas Lindquist Olsen
2007-11-24 06:33:00 +01:00
parent 0a8ff5931a
commit b43f5729b0
18 changed files with 867 additions and 145 deletions
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32
gen/tollvm.cpp
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@@ -1140,11 +1140,35 @@ DValue* DtoCastComplex(DValue* val, Type* _to)
DValue* DtoCastClass(DValue* val, Type* _to)
{
const llvm::Type* tolltype = DtoType(_to);
Type* to = DtoDType(_to);
assert(to->ty == Tclass || to->ty == Tpointer);
llvm::Value* rval = new llvm::BitCastInst(val->getRVal(), tolltype, "tmp", gIR->scopebb());
return new DImValue(_to, rval);
if (to->ty == Tpointer) {
const llvm::Type* tolltype = DtoType(_to);
llvm::Value* rval = DtoBitCast(val->getRVal(), tolltype);
return new DImValue(_to, rval);
}
assert(to->ty == Tclass);
TypeClass* tc = (TypeClass*)to;
Type* from = DtoDType(val->getType());
TypeClass* fc = (TypeClass*)from;
if (tc->sym->isInterfaceDeclaration()) {
assert(!fc->sym->isInterfaceDeclaration());
return DtoCastObjectToInterface(val, _to);
}
else {
if (fc->sym->isInterfaceDeclaration()) {
assert(0);
return DtoCastInterfaceToObject(val);
}
else {
const llvm::Type* tolltype = DtoType(_to);
assert(to->ty == Tclass);
llvm::Value* rval = DtoBitCast(val->getRVal(), tolltype);
return new DImValue(_to, rval);
}
}
}
DValue* DtoCast(DValue* val, Type* to)