break.java

用java实现的编译器. 包括语法分析

package inter;
public class Break extends Stmt {
	Stmt stmt;
	public Break() {
		if(Stmt.Enclosing == null)
			error("unenclosed break");
		stmt = Stmt.Enclosing;	
	}
	public void gen(int b, int a) {
		emit("goto L" + stmt.after);
	}
}