package net.sourceforge.phpdt.internal.compiler.ast;
import java.util.List;
-import java.util.ArrayList;
/**
* A list expression.
* it could be list($v1,$v2), list(,$v2) ...
* @author Matthieu Casanova
*/
-public class ListExpression extends Expression {
+public final class ListExpression extends Expression {
- public Expression[] vars;
- public Expression expression;
+ private final Expression[] vars;
+ private Expression expression;
public ListExpression(final Expression[] vars,
final Expression expression,
return buff.toString();
}
- /**
+ /**
* Get the variables from outside (parameters, globals ...)
- * @return the variables from outside
+ *
+ * @param list the list where we will put variables
*/
- public List getOutsideVariable() {
- return new ArrayList();
- }
+ public void getOutsideVariable(final List list) {}
/**
* get the modified variables.
- * @return the variables from we change value
+ *
+ * @param list the list where we will put variables
*/
- public List getModifiedVariable() {
- final ArrayList list = new ArrayList();
+ public void getModifiedVariable(final List list) {
for (int i = 0; i < vars.length; i++) {
- list.addAll(vars[i].getModifiedVariable());
+ if (vars[i] != null) {
+ vars[i].getUsedVariable(list);
+ }
}
if (expression != null) {
- list.addAll(expression.getModifiedVariable());
+ expression.getModifiedVariable(list);
}
- return list;
}
/**
* Get the variables used.
- * @return the variables used
+ *
+ * @param list the list where we will put variables
*/
- public List getUsedVariable() {
- if (expression == null) {
- return new ArrayList(1);
+ public void getUsedVariable(final List list) {
+ if (expression != null) {
+ expression.getUsedVariable(list);
}
- return expression.getUsedVariable();
}
}