org.antlr.stringtemplate.language.Cat Maven / Gradle / Ivy
package org.antlr.stringtemplate.language;
import java.util.Iterator;
import java.util.List;
import java.util.AbstractList;
import java.util.ArrayList;
/** Given a list of attributes, return the combined elements in a list. */
public class Cat extends AbstractList {
protected List elements;
public Iterator iterator() {
return super.iterator();
}
public Object get(int index) {
return elements.get(index);
}
public int size() {
return elements.size();
}
public Cat(List attributes) {
elements = new ArrayList();
for (int i = 0; i < attributes.size(); i++) {
Object attribute = (Object) attributes.get(i);
attribute = ASTExpr.convertAnythingIteratableToIterator(attribute);
if ( attribute instanceof Iterator ) {
Iterator it = (Iterator)attribute;
while (it.hasNext()) {
Object o = (Object) it.next();
elements.add(o);
}
}
else {
elements.add(attribute);
}
}
}
public String toString() {
StringBuffer buf = new StringBuffer();
for (int i = 0; i < elements.size(); i++) {
Object o = (Object) elements.get(i);
buf.append(o);
}
return buf.toString();
}
}