/**
* Copyright 2009, Google Inc. All rights reserved.
* Licensed to PSF under a Contributor Agreement.
*/
package org.python.indexer.ast;
import org.python.indexer.Scope;
import org.python.indexer.ast.NNode;
import org.python.indexer.types.NListType;
import org.python.indexer.types.NType;
import java.util.List;
public class NList extends NSequence {
static final long serialVersionUID = 6623743056841822992L;
public NList(List<NNode> elts) {
this(elts, 0, 1);
}
public NList(List<NNode> elts, int start, int end) {
super(elts, start, end);
}
@Override
public NType resolve(Scope s) throws Exception {
if (elts.size() == 0) {
return setType(new NListType()); // list<unknown>
}
NListType listType = null;
for (NNode elt : elts) {
if (listType == null) {
listType = new NListType(resolveExpr(elt, s));
} else {
listType.add(resolveExpr(elt, s));
}
}
if (listType != null) {
setType(listType);
}
return getType();
}
@Override
public String toString() {
return "<List:" + start() + ":" + elts + ">";
}
@Override
public void visit(NNodeVisitor v) {
if (v.visit(this)) {
visitNodeList(elts, v);
}
}
}