static ImmutableSet<ObjectType> withoutProperty(Set<ObjectType> objs, QualifiedName qname) {
ImmutableSet.Builder<ObjectType> newObjs = ImmutableSet.builder();
for (ObjectType obj : objs) {
newObjs.add(obj.withProperty(qname, null));
}
return newObjs.build();
}
public JSType withProperty(QualifiedName qname, JSType type) {
Preconditions.checkArgument(type != null);
if (isUnknown()) {
return this;
}
Preconditions.checkState(this.objs != null);
return new JSType(
this.mask, this.location, ObjectType.withProperty(this.objs, qname, type), typeVar);
}