[Webkit-unassigned] [Bug 102631] New: Web Inspector: [JSC] some functions of "InjectedScriptSource.js" work wrong when injected for worker inspector

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=102631

           Summary: Web Inspector: [JSC] some functions of
                    "InjectedScriptSource.js" work wrong when injected for
                    worker inspector
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: peter.wang at torchmobile.com.cn
                CC: keishi at webkit.org, charles.wei at torchmobile.com.cn,
                    pmuellr at yahoo.com, pfeldman at chromium.org,
                    yurys at chromium.org, apavlov at chromium.org,
                    loislo at chromium.org, vsevik at chromium.org,
                    web-inspector-bugs at googlegroups.com


When we inject "InjectedScriptSource.js" into JS world, we must provide three arguments (InjectedScriptHost, inspectedWindow, and injectedScriptId), which are also living in the same world

Since JSC worker has totally isolated world with the world for JSWindowShell, we cannot create "inspectedWindow" in the worker world as "InjectedScriptHost" and "injectedScriptId". So the "inspectedWindow" related functions will throw exceptions when are invoked.

I really cannot figure out a good way to resolve it. Should I try to rewrite "InjectedScriptSource.js" for JSC worker? Or just ignore the exceptions? 

How to reproduce the bug:
(1) Open inspector for any web page including worker.
(2) Input some variable name into "Watch Expressions".
(3) Choose "Pause on start", and trigger the worker in the inspected page.  
(4) The worker inspector window shows, and there is a failed assert when worker inspector try to evaluate the variables in "Watch Expressions":

0x00007ffff5b69e77 in WebCore::InjectedScriptBase::makeCall (this=0x7fff86e37d10, function=..., result=0x7fff86e37af0)
    at /home/torch-admin/project/upstream/Source/WebCore/inspector/InjectedScriptBase.cpp:108
108        ASSERT(!hadException);
(gdb) bt
#0  0x00007ffff5b69e77 in WebCore::InjectedScriptBase::makeCall (this=0x7fff86e37d10, function=..., result=0x7fff86e37af0)
    at /home/torch-admin/project/upstream/Source/WebCore/inspector/InjectedScriptBase.cpp:108
#1  0x00007ffff5b69fea in WebCore::InjectedScriptBase::makeEvalCall (this=0x7fff86e37d10, errorString=0x7fff86e37f10, function=..., 
    objectResult=0x7fff86e37e10, wasThrown=0x7fff86e37f90)
    at /home/torch-admin/project/upstream/Source/WebCore/inspector/InjectedScriptBase.cpp:120
#2  0x00007ffff5b67c21 in WebCore::InjectedScript::evaluateOnCallFrame (this=0x7fff86e37d10, errorString=0x7fff86e37f10, callFrames=
    ..., callFrameId=..., expression=..., objectGroup=..., includeCommandLineAPI=false, returnByValue=false, generatePreview=false, 
    result=0x7fff86e37e10, wasThrown=0x7fff86e37f90)
    at /home/torch-admin/project/upstream/Source/WebCore/inspector/InjectedScript.cpp:96
#3  0x00007ffff5baedb9 in WebCore::InspectorDebuggerAgent::evaluateOnCallFrame (this=0x7fff7801c370, errorString=0x7fff86e37f10, 
    callFrameId=..., expression=..., objectGroup=0x7fff86e37e90, includeCommandLineAPI=0x7fff86e37f99, 
    doNotPauseOnExceptionsAndMuteConsole=0x7fff86e37f9b, returnByValue=0x7fff86e37f9d, generatePreview=0x7fff86e37f9f, result=..., 
    wasThrown=0x7fff86e37f90) at /home/torch-admin/project/upstream/Source/WebCore/inspector/InspectorDebuggerAgent.cpp:518
#4  0x00007ffff6692417 in WebCore::InspectorBackendDispatcherImpl::Debugger_evaluateOnCallFrame (this=0x7fff78023240, callId=36, 
    requestMessageObject=0x7fff78070e20) at generated/InspectorBackendDispatcher.cpp:4485

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