Make cloning of File objects more useful.

LayoutTests/fast/storage/serialized-script-value-expected.txt

Index: LayoutTests/fast/storage/serialized-script-value-expected.txt
diff --git a/LayoutTests/fast/storage/serialized-script-value-expected.txt b/LayoutTests/fast/storage/serialized-script-value-expected.txt
index f56d786aef722e0097455492113bf47e3ad74fa6..d5139636f0331b19d2bd9438cc09b1181806450a 100644
--- a/LayoutTests/fast/storage/serialized-script-value-expected.txt
+++ b/LayoutTests/fast/storage/serialized-script-value-expected.txt
@@ -5,9 +5,29 @@ PASS areValuesIdentical(newObj, obj) is true
 Serialize {"foo":"zoo","bar":{"baz":"myNewKey"}}:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to {"foo":"zoo","bar":{"baz":"myNewKey"}}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {"foo":"zoo","bar":{"baz":"myNewKey"}}:
+PASS bufferView.length is expectedBufferValues.length
+
+Deserialize to {"foo":"zoo","bar":"myNewKey"}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {"foo":"zoo","bar":"myNewKey"}:
+PASS bufferView.length is expectedBufferValues.length
+
+Backwards compatibility with version 3 serialization.
+
 Deserialize to {"foo":"zoo","bar":"myNewKey"}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
 Serialize {"foo":"zoo","bar":"myNewKey"}:
 PASS bufferView.length is expectedBufferValues.length
 
@@ -17,6 +37,16 @@ PASS areValuesIdentical(newObj, obj) is true
 Serialize []:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to []:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize []:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to {"foo":"zoo"}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
@@ -47,39 +77,109 @@ PASS areValuesIdentical(newObj, obj) is true
 Serialize undefined:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to undefined:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize undefined:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to true:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize true:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to true:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize true:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to false:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize false:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to false:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize false:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to 10:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize 10:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to 10:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize 10:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to -10:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize -10:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to -10:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize -10:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to 1073741824:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize 1073741824:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to 1073741824:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize 1073741824:
+PASS bufferView.length is expectedBufferValues.length
+
+Deserialize to 36028797018963970:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize 36028797018963970:
+PASS bufferView.length is expectedBufferValues.length
+
+Backwards compatibility with version 3 serialization.
+
 Deserialize to 36028797018963970:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
 Serialize 36028797018963970:
 PASS bufferView.length is expectedBufferValues.length
 
@@ -89,33 +189,93 @@ PASS areValuesIdentical(newObj, obj) is true
 Serialize 1.23:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to 1.23:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize 1.23:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to 2147483647:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize 2147483647:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to 2147483647:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize 2147483647:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to -2147483648:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize -2147483648:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to -2147483648:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize -2147483648:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to 2147483648:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize 2147483648:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to 2147483648:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize 2147483648:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to 4294967295:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize 4294967295:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to 4294967295:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize 4294967295:
+PASS bufferView.length is expectedBufferValues.length
+
+Deserialize to "":
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize "":
+PASS bufferView.length is expectedBufferValues.length
+
+Backwards compatibility with version 3 serialization.
+
 Deserialize to "":
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
 Serialize "":
 PASS bufferView.length is expectedBufferValues.length
 
@@ -125,15 +285,45 @@ PASS areValuesIdentical(newObj, obj) is true
 Serialize "abc":
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to "abc":
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize "abc":
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to {"integer":123}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize {"integer":123}:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to {"integer":123}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {"integer":123}:
+PASS bufferView.length is expectedBufferValues.length
+
+Deserialize to {"string":"str"}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {"string":"str"}:
+PASS bufferView.length is expectedBufferValues.length
+
+Backwards compatibility with version 3 serialization.
+
 Deserialize to {"string":"str"}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
 Serialize {"string":"str"}:
 PASS bufferView.length is expectedBufferValues.length
 
@@ -143,15 +333,45 @@ PASS areValuesIdentical(newObj, obj) is true
 Serialize {"list":[1,2,3]}:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to {"list":[1,2,3]}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {"list":[1,2,3]}:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to null:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize null:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to null:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize null:
+PASS bufferView.length is expectedBufferValues.length
+
+Deserialize to {}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {}:
+PASS bufferView.length is expectedBufferValues.length
+
+Backwards compatibility with version 3 serialization.
+
 Deserialize to {}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
 Serialize {}:
 PASS bufferView.length is expectedBufferValues.length
 
@@ -161,12 +381,32 @@ PASS areValuesIdentical(newObj, obj) is true
 Serialize {"inner":{"hello":"there"},"outer":{"hello":"there"}}:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to {"inner":{"hello":"there"},"outer":{"hello":"there"}}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {"inner":{"hello":"there"},"outer":{"hello":"there"}}:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to {"hello":"there"}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
 Serialize {"hello":"there"}:
 PASS bufferView.length is expectedBufferValues.length
 
+Backwards compatibility with version 3 serialization.
+
+Deserialize to {"hello":"there"}:
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+PASS JSON.stringify(newObj) is JSON.stringify(obj)
+PASS areValuesIdentical(newObj, obj) is true
+Serialize {"hello":"there"}:
+PASS bufferView.length is expectedBufferValues.length
+
 Deserialize to {"a":"a","u":"αβ","d":42}:
 PASS JSON.stringify(newObj) is JSON.stringify(obj)
 PASS areValuesIdentical(newObj, obj) is true
@@ -205,6 +445,11 @@ PASS thrownException.code is expectedException
 PASS areValuesIdentical(blobObj1, blobObj2) is true
 PASS areValuesIdentical(dictionaryWithBlob1, dictionaryWithBlob2) is true
 PASS self.blobContent1 is self.blobContent2
+
+Test deserialization of File objects
+PASS areValuesIdentical(fileObj1, fileObj2) is true
+PASS areValuesIdentical(dictionaryWithFile1, dictionaryWithFile2) is true
+PASS self.fileContents1 is self.fileContents2
 PASS successfullyParsed is true
 
 TEST COMPLETE