Question

我正在尝试在Nashorn中运行browser.js，在库中使用babel.transform来处理某些Isomorphic Webapp。

在我的项目中运行npm i babel-core

以下是BabelTransformer类的来源：

public BabelTransformer() throws ScriptException, IOException{  
try
    {
        ScriptEngineManager mgr = new ScriptEngineManager();
        ScriptEngine nashorn = mgr.getEngineByName("nashorn");
        nashorn.eval("var process = {env:{}}"); // node-modules expect that
        nashorn.eval("var global = this;"); // react expects that
        nashorn.eval(getScript("com/facebook/babel/jvm-npm.js"));
        nashorn.eval(getScript("com/facebook/babel/node_modules/babel-core/browser.min.js")); //The line 43
        babel = (ScriptObjectMirror)nashorn.eval("babel");
        invocable = (Invocable) nashorn;
    }
    catch(ScriptException | IOException e)
    {
        throw new Error(e); //this is line 49
    }
}

但是我有一个错误，我无法诊断/解决：

Testcase: testTransformOnHtmlElement(com.facebook.babel.BabelTransformerTest):  Caused an ERROR
javax.script.ScriptException: <eval>:1:1 Expected ; but found error

 ^ in <eval> at line number 1 at column number 1
java.lang.Error: javax.script.ScriptException: <eval>:1:1 Expected ; but found error

 ^ in <eval> at line number 1 at column number 1
    at com.facebook.babel.BabelTransformer.<init>(BabelTransformer.java:49)
    at com.facebook.babel.BabelTransformerTest.setUp(BabelTransformerTest.java:16)
Caused by: javax.script.ScriptException: <eval>:1:1 Expected ; but found error

 ^ in <eval> at line number 1 at column number 1
    at jdk.nashorn.api.scripting.NashornScriptEngine.throwAsScriptException(NashornScriptEngine.java:467)
    at jdk.nashorn.api.scripting.NashornScriptEngine.compileImpl(NashornScriptEngine.java:534)
    at jdk.nashorn.api.scripting.NashornScriptEngine.compileImpl(NashornScriptEngine.java:521)
    at jdk.nashorn.api.scripting.NashornScriptEngine.evalImpl(NashornScriptEngine.java:399)
    at jdk.nashorn.api.scripting.NashornScriptEngine.eval(NashornScriptEngine.java:155)
    at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:264)
    at com.facebook.babel.BabelTransformer.<init>(BabelTransformer.java:43)
Caused by: jdk.nashorn.internal.runtime.ParserException: <eval>:1:1 Expected ; but found error

 ^
    at jdk.nashorn.internal.parser.AbstractParser.error(AbstractParser.java:292)
    at jdk.nashorn.internal.parser.AbstractParser.error(AbstractParser.java:277)
    at jdk.nashorn.internal.parser.AbstractParser.expectDontAdvance(AbstractParser.java:348)
    at jdk.nashorn.internal.parser.AbstractParser.expect(AbstractParser.java:335)
    at jdk.nashorn.internal.parser.Parser.endOfLine(Parser.java:3369)
    at jdk.nashorn.internal.parser.Parser.expressionStatement(Parser.java:1162)
    at jdk.nashorn.internal.parser.Parser.statement(Parser.java:969)
    at jdk.nashorn.internal.parser.Parser.sourceElements(Parser.java:775)
    at jdk.nashorn.internal.parser.Parser.program(Parser.java:711)
    at jdk.nashorn.internal.parser.Parser.parse(Parser.java:284)
    at jdk.nashorn.internal.parser.Parser.parse(Parser.java:250)
    at jdk.nashorn.internal.runtime.Context.compile(Context.java:1281)
    at jdk.nashorn.internal.runtime.Context.compileScript(Context.java:1248)
    at jdk.nashorn.internal.runtime.Context.compileScript(Context.java:629)
    at jdk.nashorn.api.scripting.NashornScriptEngine.compileImpl(NashornScriptEngine.java:532)

如何在Nashorn中运行browser.js？

如何在Nashorn中运行来自babel的browser.js

0 个答案: