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pacman-dsl's Issues

Dynamic invoking script was too slow

https://github.com/wsky/pacman-dsl/blob/master/src/main/java/com/taobao/top/pacman/definition/functions/Script.java#L52

ontext ctx = Context.enter();
                    Scriptable scope = ctx.initStandardObjects();

                    for (Variable variable : variables)
                        ScriptableObject.putProperty(scope, variable.getName(), variable.get(context));

                    Object result = ctx.evaluateString(scope,
                            // NOTE if dynamic eval() too slow, should make it inlined(precompiled for reused)
                            "(" + thisPtr.source + ")()", "Script", 1, null);

need cache compiled function object

can not assign null via DSL "Assign().Value(null).To(Var('result')).End()"

Assign().Value(null).To(Var('result')).End()
com.taobao.top.lbac.AccessControlException: org.mozilla.javascript.WrappedException: Wrapped java.lang.NullPointerException (DSL#2)
    at com.taobao.top.lbac.actions.PacmanDynamicAction.execute(PacmanDynamicAction.java:31)
    at com.taobao.top.lbac.RuleAction.execute(RuleAction.java:9)
    at com.taobao.top.lbre.RuleExecutor.execute(RuleExecutor.java:103)
    at com.taobao.top.lbre.RuleExecutor.action(RuleExecutor.java:22)
    at com.taobao.top.lbre.Rule.action(Rule.java:150)
    at com.taobao.top.lbac.AccessRule.action(AccessRule.java:66)
    at com.taobao.top.lbac.data.DataAccessControl.apply(DataAccessControl.java:91)
    at com.taobao.top.lbac.tip.AccessControlTest.api_test(AccessControlTest.java:62)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: org.mozilla.javascript.WrappedException: Wrapped java.lang.NullPointerException (DSL#2)
    at org.mozilla.javascript.Context.throwAsScriptRuntimeEx(Context.java:1754)
    at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:148)
    at org.mozilla.javascript.FunctionObject.call(FunctionObject.java:449)
    at org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:32)
    at org.mozilla.javascript.gen.DSL_20._c_script_0(DSL:2)
    at org.mozilla.javascript.gen.DSL_20.call(DSL)
    at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:394)
    at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:3091)
    at org.mozilla.javascript.gen.DSL_20.call(DSL)
    at org.mozilla.javascript.gen.DSL_20.exec(DSL)
    at org.mozilla.javascript.Context.evaluateString(Context.java:1079)
    at com.taobao.top.pacman.definition.Converter.convert(Converter.java:59)
    at com.taobao.top.pacman.WorkflowInvoker.convert(WorkflowInvoker.java:47)
    at com.taobao.top.pacman.WorkflowInvoker.convert(WorkflowInvoker.java:42)
    at com.taobao.top.lbre.internal.PacmanResolver.getActivity(PacmanResolver.java:43)
    at com.taobao.top.lbre.internal.PacmanResolver.invoke(PacmanResolver.java:50)
    at com.taobao.top.lbac.actions.PacmanDynamicAction.execute(PacmanDynamicAction.java:29)
    ... 31 more
Caused by: java.lang.NullPointerException
    at java.lang.Class.isAssignableFrom(Native Method)
    at com.taobao.top.pacman.definition.scriptable.DefinitionAdapter.findMethod(DefinitionAdapter.java:129)
    at com.taobao.top.pacman.definition.scriptable.DefinitionAdapter.setValue(DefinitionAdapter.java:81)
    at com.taobao.top.pacman.definition.scriptable.DefinitionAdapter.setValue(DefinitionAdapter.java:75)
    at com.taobao.top.pacman.definition.scriptable.assign.AssignDefinitionAdapter.jsFunction_Value(AssignDefinitionAdapter.java:29)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.mozilla.javascript.MemberBox.invoke(MemberBox.java:126)
    ... 46 more

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