public void setAttr(State s, @NotNull Type v) {
Type targetType = transformExpr(target, s);
if (targetType.isUnionType()) {
Set<Type> types = targetType.asUnionType().types;
for (Type tp : types) {
setAttrType(tp, v);
}
} else {
setAttrType(targetType, v);
}
}
private void setAttrType(@NotNull Type targetType, @NotNull Type v) {
if (targetType.isUnknownType()) {
Analyzer.self.putProblem(this, "Can't set attribute for UnknownType");
return;
}
// new attr, mark the type as "mutated"
if (targetType.table.lookupAttr(attr.id) == null
|| !targetType.table.lookupAttrType(attr.id).equals(v)) {
targetType.setMutated(true);
}
targetType.table.insert(attr.id, attr, v, ATTRIBUTE);
}
private void importStar(@NotNull Scope s, @Nullable ModuleType mt) {
if (mt == null || mt.getFile() == null) {
return;
}
Module mod = Indexer.idx.getAstForFile(mt.getFile());
if (mod == null) {
return;
}
List<String> names = new ArrayList<>();
Type allType = mt.getTable().lookupType("__all__");
if (allType != null && allType.isListType()) {
ListType lt = allType.asListType();
for (Object o : lt.values) {
if (o instanceof String) {
names.add((String) o);
}
}
}
if (!names.isEmpty()) {
for (String name : names) {
List<Binding> b = mt.getTable().lookupLocal(name);
if (b != null) {
s.update(name, b);
} else {
List<Name> m2 = new ArrayList<>(module);
m2.add(new Name(name));
ModuleType mod2 = Indexer.idx.loadModule(m2, s);
if (mod2 != null) {
s.insert(name, null, mod2, Binding.Kind.VARIABLE);
}
}
}
} else {
// Fall back to importing all names not starting with "_".
for (Entry<String, List<Binding>> e : mt.getTable().entrySet()) {
if (!e.getKey().startsWith("_")) {
s.update(e.getKey(), e.getValue());
}
}
}
}
@NotNull
@Override
public Type transform(State s) {
// the form of ::A in ruby
if (target == null) {
return transformExpr(attr, s);
}
Type targetType = transformExpr(target, s);
if (targetType.isUnionType()) {
Set<Type> types = targetType.asUnionType().types;
Type retType = Type.UNKNOWN;
for (Type tt : types) {
retType = UnionType.union(retType, getAttrType(tt));
}
return retType;
} else {
return getAttrType(targetType);
}
}
private Type getAttrType(@NotNull Type targetType) {
List<Binding> bs = targetType.table.lookupAttr(attr.id);
if (bs == null) {
Analyzer.self.putProblem(attr, "attribute not found in type: " + targetType);
Type t = Type.UNKNOWN;
t.table.setPath(targetType.table.extendPath(attr.id));
return t;
} else {
for (Binding b : bs) {
Analyzer.self.putRef(attr, b);
if (parent != null
&& parent.isCall()
&& b.type.isFuncType()
&& targetType.isInstanceType()) { // method call
b.type.asFuncType().setSelfType(targetType);
}
}
return State.makeUnion(bs);
}
}