如何使用eclipse调试jRuby？

时间：2013-09-07 04:56:00

标签： ruby-on-rails ruby eclipse debugging jruby

这听起来像是一个相当微不足道的问题，但我已经挣扎了很多年，放弃了Ruby并回归它。我是一个尝试学习Ruby的Java / Eclipse人员，所以我想在我的Win 7,64位计算机上使用一些 Eclipse插件调试jRuby / Rails。怎么这么难？我找不到一步一步的说明（例如安装此插件，此版本的jRuby，安装这些宝石，调整这些设置）。如果没有这个，我正在做点什么，我所做的一切似乎都会导致奇怪的错误。

此时此刻，我正在尝试使用EasyEclipse（这是一个不错的选择吗？）。我发现默认安装（进入Program Files）并不是一个好主意，并将其安装在没有空格的路径上;和jRuby一样。我安装了两个调试宝石（从我的头脑中， gem install ruby​​-debug 和 gem install ruby​​-debug-ide ），然后进行了“gem update”。我正在运行EasyEclipse和jRuby的最新稳定版本。

我能够运行Ruby程序。但是，当我设置断点并尝试调试时，调试器陷入“启动（95％）”并且控制台显示：

  

ruby​​ 1.9.3调试器侦听端口52188   线程的未定义方法`critical ='：Class

当我在首选项中启用“使用ruby-debug库”库时，我得到了这个：

   Fast Debugger (ruby-debug-ide 0.4.18, ruby-debug-base 0.10.3.2) listens on 127.0.0.1:52819
Hello, world!
Hello, world!2
Hello, world!3
Context.java:407:in `contextCopyLocals': java.lang.NoSuchMethodError: org.jruby.runtime.DynamicScope.getEvalScope()Lorg/jruby/runtime/DynamicScope;
    from Context.java:284:in `frame_locals'
    from Context$INVOKER$i$1$0$frame_locals_DBG.gen:-1:in `call'
    from JavaMethod.java:347:in `call'
    from CachingCallSite.java:326:in `cacheAndCall'
    from CachingCallSite.java:170:in `call'
    from CallOneArgNode.java:57:in `interpret'
    from LocalAsgnNode.java:123:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from ASTInterpreter.java:74:in `INTERPRET_METHOD'
    from InterpretedMethod.java:139:in `call'
    from CachingCallSite.java:306:in `cacheAndCall'
    from CachingCallSite.java:136:in `call'
    from CallNoArgNode.java:60:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from IfNode.java:118:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from IfNode.java:116:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from ASTInterpreter.java:112:in `INTERPRET_BLOCK'
    from Interpreted19Block.java:206:in `evalBlockBody'
    from Interpreted19Block.java:157:in `yield'
    from Block.java:142:in `yield'
    from RubyArray.java:1610:in `eachCommon'
    from RubyArray.java:1617:in `each'
    from RubyArray$INVOKER$i$0$0$each_DBG.gen:-1:in `call'
    from CachingCallSite.java:143:in `callBlock'
    from CachingCallSite.java:154:in `callIter'
    from CallNoArgBlockNode.java:64:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from ASTInterpreter.java:112:in `INTERPRET_BLOCK'
    from Interpreted19Block.java:206:in `evalBlockBody'
    from Interpreted19Block.java:157:in `yield'
    from Block.java:142:in `yield'
    from RubyContinuation.java:107:in `enter'
    from RubyKernel.java:1261:in `rbCatch19Common'
    from RubyKernel.java:1254:in `rbCatch19'
    from RubyKernel$INVOKER$s$rbCatch19_DBG.gen:-1:in `call'
    from CachingCallSite.java:177:in `callBlock'
    from CachingCallSite.java:188:in `callIter'
    from FCallOneArgBlockNode.java:34:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from WhileNode.java:131:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from RescueNode.java:222:in `executeBody'
    from RescueNode.java:117:in `interpret'
    from ASTInterpreter.java:74:in `INTERPRET_METHOD'
    from InterpretedMethod.java:139:in `call'
    from CachingCallSite.java:306:in `cacheAndCall'
    from CachingCallSite.java:136:in `call'
    from CallNoArgNode.java:60:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from ASTInterpreter.java:74:in `INTERPRET_METHOD'
    from InterpretedMethod.java:268:in `call'
    from CachingCallSite.java:366:in `cacheAndCall'
    from CachingCallSite.java:238:in `call'
    from FCallThreeArgNode.java:40:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from ASTInterpreter.java:74:in `INTERPRET_METHOD'
    from InterpretedMethod.java:268:in `call'
    from CachingCallSite.java:366:in `cacheAndCall'
    from CachingCallSite.java:238:in `call'
    from CallThreeArgNode.java:61:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from ASTInterpreter.java:74:in `INTERPRET_METHOD'
    from InterpretedMethod.java:112:in `call'
    from InterpretedMethod.java:126:in `call'
    from RubyClass.java:722:in `finvoke'
    from Helpers.java:486:in `invoke'
    from RubyBasicObject.java:367:in `callMethod'
    from DebugEventHook.java:566:in `callAtLine'
    from DebugEventHook.java:553:in `callAtLine'
    from DebugEventHook.java:190:in `processEvent'
    from DebugEventHook.java:97:in `eventHandler'
    from EventHook.java:30:in `event'
    from Ruby.java:2882:in `callEventHooks'
    from ASTInterpreter.java:239:in `callTraceFunction'
    from NewlineNode.java:101:in `interpret'
    from BlockNode.java:71:in `interpret'
    from ASTInterpreter.java:103:in `INTERPRET_CLASS'
    from ASTInterpreter.java:280:in `evalClassDefinitionBody'
    from ClassNode.java:138:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from RootNode.java:129:in `interpret'
    from ASTInterpreter.java:121:in `INTERPRET_ROOT'
    from Ruby.java:834:in `runInterpreter'
    from Ruby.java:2674:in `loadFile'
    from ExternalScript.java:66:in `load'
    from LoadService.java:359:in `load'
    from Debugger.java:137:in `load'
    from RubyDebugger.java:207:in `debug_load'
    from RubyDebugger$INVOKER$s$0$2$debug_load_DBG.gen:-1:in `call'
    from DynamicMethod.java:225:in `call'
    from DynamicMethod.java:221:in `call'
    from CachingCallSite.java:366:in `cacheAndCall'
    from CachingCallSite.java:238:in `call'
    from FCallThreeArgNode.java:40:in `interpret'
    from LocalAsgnNode.java:123:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from ASTInterpreter.java:74:in `INTERPRET_METHOD'
    from InterpretedMethod.java:182:in `call'
    from CachingCallSite.java:326:in `cacheAndCall'
    from CachingCallSite.java:170:in `call'
    from CallOneArgNode.java:57:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from RootNode.java:129:in `interpret'
    from ASTInterpreter.java:121:in `INTERPRET_ROOT'
    from Ruby.java:834:in `runInterpreter'
    from Ruby.java:2674:in `loadFile'
    from ExternalScript.java:66:in `load'
    from LoadService.java:359:in `load'
    from RubyKernel.java:1081:in `loadCommon'
    from RubyKernel.java:1073:in `load19'
    from RubyKernel$INVOKER$s$0$1$load19_DBG.gen:-1:in `call'
    from DynamicMethod.java:209:in `call'
    from DynamicMethod.java:205:in `call'
    from CachingCallSite.java:326:in `cacheAndCall'
    from CachingCallSite.java:170:in `call'
    from FCallOneArgNode.java:36:in `interpret'
    from NewlineNode.java:105:in `interpret'
    from BlockNode.java:71:in `interpret'
    from RootNode.java:129:in `interpret'
    from ASTInterpreter.java:121:in `INTERPRET_ROOT'
    from Ruby.java:834:in `runInterpreter'
    from Ruby.java:842:in `runInterpreter'
    from Ruby.java:673:in `runNormally'
    from Ruby.java:518:in `runFromMain'
    from Main.java:390:in `doRunFromMain'
    from Main.java:279:in `internalRun'
    from Main.java:221:in `run'
    from Main.java:201:in `main'

发生了什么事？

我想我可以继续谷歌搜索并尝试在黑暗中找到自己的方式，但我已经花了很多时间做这件事，当然有人完成了在我之前在Eclipse中调试jRuby的简单任务？救命啊！

1 个答案:

答案 0 :(得分：2)

下载Eclipse Dynamic Languages Toolkit - Ruby开发工具。在rails项目上导入ruby。检查您的Gemfile引用：

gem 'ruby-debug'

然后转到窗口 - ＆gt;偏好，并做两件事：

  • 将eclipse ruby​​解释器设置为：c：\ jruby \ bin \ jruby.bat

JRuby eclipse

  • 设置eclipse ruby​​调试引擎所以它不是“快速调试器”而是“ruby内置调试器”

enter image description here

然后在运行配置中，主选项卡，在“ruby脚本”下，启动脚本为bin/rails，并在参数选项卡server --debugger中。解释器选项卡应指向JRuby.bat

去跑步 - ＆gt;运行并给它大约30秒加载JVM，ruby环境，并将所有内容挂钩。然后检查http://localhost:3000/

要启动调试执行，请在要启动调试器的位置键入debugger。

这一切都开始看起来像这样：

Eclipse Ruby Debugger

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