and.java

用java实现的编译器. 包括语法分析

package inter;
import lexer.*;
import symbols.*;
public class And extends Logical {
	public And(Token tok, Expr x1, Expr x2) {
		super(tok, x1, x2);
	}
	public void jumping(int t, int f) {
		int label = f != 0 ? f : newlabel();
		expr1.jumping(0, label);
		expr2.jumping(t, f);
		if(f == 0) emitlabel(label);

	}
}