exception.js

来自「JSVM核心类库,收集了JAVA进行JSVM开发必用技术进行归纳,在实际项目应用」· JavaScript 代码 · 共 41 行

// Description:	js.lang.Exception 基类
// Author:	Wan Changhua
// Version:	2004.01.26.01

_package("js.lang");

_import("js.lang.Object");
_import("js.io.OutputStream");

function js.lang.Exception(_msg) {

	if (typeof(_msg) == "undefined") _msg = "异常";
	js.lang.Exception._base.call(this);
	this.message = _msg;
	this.cause = "";

	this.getCause = function() {return this.cause;}
	this.getMessage = function() {return this.message;}

	this.printStackTrace = function(out) {
		if (out instanceof js.io.OutputStream)
			out.printError(this);
		else
			JSVM.io.output(this);
	};

	// 为和 Error 对象兼容

	this.number=0x0501;

	this.toError = function() {
		var number = JSVM.deviceNumber * 0x10000 + this.number;
		var description = this.className + " {" + this.getMessage() + "}";
		return(new Error(number, description));
	};
	this.toString = function() {
		return this.toError().toString();
	};
}
js.lang.Exception._extends("js.lang.Object");