public MemberReference memberReference(AddressValue structureOrUnionReference, Field field) {
ObjectType memberType = field.getType();
PointerType memberReferenceType = typeFactory.pointerType(memberType);
return (MemberReference)
canonic(new CommonMemberReference(memberReferenceType, structureOrUnionReference, field));
}
private Value evaluateMemberAccess(Value structureOrUnionValue, Field field)
throws UnsourcedException {
if (structureOrUnionValue instanceof StructureValue) {
return ((StructureValue) structureOrUnionValue).getMember(field);
}
if (structureOrUnionValue instanceof UnionValue) {
UnionValue unionValue = (UnionValue) structureOrUnionValue;
Field unionField = unionValue.getField();
if (!unionField.equals(field))
throw new UnsourcedException(
"Union value field differs from requested field:\n" + unionField + "\n" + field);
return unionValue.getMemberValue();
}
// TODO: need to create a new dot value.
throw new UnsourcedException(
"Cannot evaluate structure or union value: " + structureOrUnionValue);
}