Switch.java

package polyglot.ast;

import java.util.List;

/**
 * A <code>Switch</code> is an immutable representation of a Java
 * <code>switch</code> statement.  Such a statement has an expression which
 * is evaluated to determine where to branch to, an a list of labels
 * and block statements which are conditionally evaluated.  One of the
 * labels, rather than having a constant expression, may be lablled
 * default.
 */
public interface Switch extends CompoundStmt 
{
    /** The expression on which to switch. */
    Expr expr();

    /** Set the expression on which to switch. */
    Switch expr(Expr expr);

    /** List of switch elements: case statements or blocks.
     * @return A list of {@link polyglot.ast.SwitchElement SwitchElement}.
     */
    List elements();

    /** Set the list of switch elements: case statements or blocks.
     * @param elements A list of {@link polyglot.ast.SwitchElement SwitchElement}.
     */
    Switch elements(List elements);
}