/**
* Creates an array access with a single index expression.
*
* @param array An expression evaluating to an address.
* @param index The expression with which to index the array.
*/
public ArrayAccess(Expression array, Expression index) {
super(2);
object_print_method = class_print_method;
children.add(array);
array.setParent(this);
children.add(index);
index.setParent(this);
}
public ThrowExpression(Expression expr) {
super(1);
object_print_method = class_print_method;
children.add(expr);
expr.setParent(this);
}
public OffsetofExpression(List<Specifier> pspecs, Expression expr) {
object_print_method = class_print_method;
children.add(expr);
expr.setParent(this);
specs = new LinkedList<Specifier>();
specs.addAll(pspecs);
}
/**
* Creates an array access with multiple index expressions.
*
* @param array An expression evaluating to an address.
* @param indices A list of expressions with which to index the array.
*/
public ArrayAccess(Expression array, List indices) {
super(indices.size() + 1);
object_print_method = class_print_method;
children.add(array);
array.setParent(this);
setIndices(indices);
}
/**
* Set the list of index expressions.
*
* @param indices A list of expressions.
*/
public void setIndices(List indices) {
/* clear out everything but the first item */
Expression name = (Expression) children.get(0);
children.clear();
children.add(name);
Iterator iter = indices.iterator();
while (iter.hasNext()) {
Expression expr = null;
try {
expr = (Expression) iter.next();
} catch (ClassCastException e) {
throw new IllegalArgumentException();
}
children.add(expr);
expr.setParent(this);
}
}
public void addIndex(Expression expr) {
if (expr.getParent() != null) throw new NotAnOrphanException();
children.add(expr);
expr.setParent(this);
}
/**
* Sets the nth index expression of this array access.
*
* @param n The position of the index expression.
* @param expr The expression to use for the index.
* @throws IndexOutOfBoundsException if there is no expression at that position.
*/
public void setIndex(int n, Expression expr) {
if (expr.getParent() != null) throw new NotAnOrphanException();
children.set(n + 1, expr);
expr.setParent(this);
}
/**
* Creates a statement that returns an expression.
*
* @param expr The expression to return.
*/
public ReturnStatement(Expression expr) {
object_print_method = class_print_method;
children.add(expr);
expr.setParent(this);
}