node.java

来自「用java实现的编译器. 包括语法分析」· Java 代码 · 共 16 行

package inter;
import lexer.*;
public class Node {
	int lexline = 0;
	Node() { lexline = Lexer.line;}
	void error(String s) { throw new Error("near line " +lexline + ": " + s);}
	static int labels = 0;
	public int newlabel() { return ++labels;}
	public void emitlabel(int i) {
		System.out.print("L" + i + ":");
	}
	public void emit(String s) {
		System.out.println("\t" + s);
	}
}