[Webkit-unassigned] [Bug 110243] New: [V8] ToNumber conversions in toIntXX() functions need try-catch block

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=110243

           Summary: [V8] ToNumber conversions in toIntXX() functions need
                    try-catch block
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jsbell at chromium.org
        Depends on: 96798,101783


CodeGeneratorV8.pm relies on e.g. toInt32 for coercing arguments to WebIDL long types in JSValueToNative. toInt32 calls value->ToNumber(), which may throw but in general this call is not wrapped in a v8::tryCatch block.

e.g.:

someObj.someLongMethod( { valueOf: function() { throw "boom"; } } );

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