access.java

来自「用java实现的编译器. 包括语法分析」· Java 代码 · 共 22 行

package inter;
import lexer.*;
import symbols.*;
public class Access extends Op {
	public Id array;
	public Expr index;
	public Access(Id a, Expr i, Type p) {
		super(new Word("[]", Tag.INDEX), p);
		array = a;
		index = i;
	}
	public Expr gen() { 
		return new Access(array, index.reduce(), type);
	}
	public void jumping(int t, int f) {
		emitjumps(reduce().toString(),t,f);
	}
	public String toString() {
		return array.toString() + "[" + index.toString() + "]";
	}
}