java - using Rhino, I've got a "ReferenceError" exception -


i've got error using rhino(17r4).

my goal indent javascript source code using jsbeautifier.js.

here's code:

import java.io.inputstream;  import org.mozilla.javascript.context; import org.mozilla.javascript.scriptable;  public class jsbeautifier { public string beautify(string jssource) {     context context = context.enter();     scriptable globalscope = context.initstandardobjects();     string beautify = getfilecontents(jsbeautifier.class.getresourceasstream("beautify.js"));     context.evaluatestring(globalscope, beautify, "beautify", 1, null);     globalscope.put("source", globalscope, jssource);      context.evaluatestring(globalscope, "result = js_beautify(source);", "beautify", 1, null);     object result = globalscope.get("result", globalscope);      return (string)result; }  private string getfilecontents(inputstream stream) {     stringbuffer contents = new stringbuffer("");     try {         byte[] readbytes = new byte[1024];         int = 0;         while ((i = stream.read(readbytes)) > 0)             contents.append(new string(readbytes, 0, i));     } catch (exception e) {         e.printstacktrace();     }     return contents.tostring(); } }

when execute code, occurred below exception.

org.mozilla.javascript.ecmaerror: referenceerror: "js_beautify" not defined. (beautify#1) @ org.mozilla.javascript.scriptruntime.constructerror(scriptruntime.java:3687) @ org.mozilla.javascript.scriptruntime.constructerror(scriptruntime.java:3665) @ org.mozilla.javascript.scriptruntime.notfounderror(scriptruntime.java:3750) @ org.mozilla.javascript.scriptruntime.getnamefunctionandthis(scriptruntime.java:2176) @ org.mozilla.javascript.optimizer.optruntime.callname(optruntime.java:61) @ org.mozilla.javascript.gen.beautify_2._c_script_0(beautify:1) @ org.mozilla.javascript.gen.beautify_2.call(beautify) @ org.mozilla.javascript.contextfactory.dotopcall(contextfactory.java:394) @ org.mozilla.javascript.scriptruntime.dotopcall(scriptruntime.java:3091) @ org.mozilla.javascript.gen.beautify_2.call(beautify) @ org.mozilla.javascript.gen.beautify_2.exec(beautify) @ org.mozilla.javascript.context.evaluatestring(context.java:1079) @ test.util.jsconverter.jsbeautifier.beautify(jsbeautifier.java:20)

how can fix problem?

the problem beautify.js assigning function variable in global scope

if (typeof define === "function") {      // add support require.js     define(function(require, exports, module) {         exports.js_beautify = js_beautify;     }); } else if (typeof exports !== "undefined") {     // add support commonjs. put file somewhere on require.paths     // , able `var js_beautify = require("beautify").js_beautify`.     exports.js_beautify = js_beautify; } else if (typeof window !== "undefined") {     // if we're running web page , don't have either of above, add our 1 global     window.js_beautify = js_beautify; } else if (typeof global !== "undefined") {     // if don't have window, try global.     global.js_beautify = js_beautify; }

so, have create a global variable can assign function 

context.evaluatestring(globalscope, "var global = {};", "global", 1, null); context.evaluatestring(globalscope, beautify, "beautify", 1, null); globalscope.put("source", globalscope, jssource); context.evaluatestring(globalscope, "result = global.js_beautify(source);", "beautify", 1, null);

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