Bug 164451 – test262: DataView get methods should allow for missing offset, set methods should allow for missing value

• Component: JavaScriptCore
• Status: RESOLVED FIXED

[Joseph Pecoraro]

Summary:
DataView get methods should allow for missing offset, set methods should allow for missing value

Yes, even though their length expects a value, it gracefully handles missing values.

Steps to Reproduce:
jsc> var buffer = new ArrayBuffer(8);
jsc> var sample = new DataView(buffer, 0);
jsc> sample.getUint8()
  => Throws exception. Should be the same as sample.getUint8(0), ToIndex(offset) would convert undefined to 0.
jsc> sample.setUint8(0)
  => Throws exception. Should be the same as sample.setUint8(0, 0), ToNumber(value) would convert undefined to 0.

[Joseph Pecoraro]

Created attachment 293996 [details]
[PATCH] Proposed Fix

[Joseph Pecoraro]

Created attachment 294420 [details]
[PATCH] For Landing

[Build Bot]

Comment on attachment 294420 [details]
[PATCH] For Landing

Attachment 294420 [details] did not pass mac-ews (mac):
Output: http://webkit-queues.webkit.org/results/2493483

New failing tests:
webgl/1.0.2/conformance/typedarrays/data-view-test.html
fast/canvas/webgl/data-view-test.html

[Build Bot]

Created attachment 294433 [details]
Archive of layout-test-results from ews102 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-ews.
Bot: ews102  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 294420 [details]
[PATCH] For Landing

Attachment 294420 [details] did not pass mac-debug-ews (mac):
Output: http://webkit-queues.webkit.org/results/2493417

New failing tests:
webgl/1.0.2/conformance/typedarrays/data-view-test.html
fast/canvas/webgl/data-view-test.html

[Build Bot]

Created attachment 294434 [details]
Archive of layout-test-results from ews115 for mac-yosemite

The attached test failures were seen while running run-webkit-tests on the mac-debug-ews.
Bot: ews115  Port: mac-yosemite  Platform: Mac OS X 10.10.5

[Build Bot]

Comment on attachment 294420 [details]
[PATCH] For Landing

Attachment 294420 [details] did not pass mac-wk2-ews (mac-wk2):
Output: http://webkit-queues.webkit.org/results/2493504

New failing tests:
webgl/1.0.2/conformance/typedarrays/data-view-test.html
fast/canvas/webgl/data-view-test.html

[Build Bot]

Created attachment 294435 [details]
Archive of layout-test-results from ews107 for mac-yosemite-wk2

The attached test failures were seen while running run-webkit-tests on the mac-wk2-ews.
Bot: ews107  Port: mac-yosemite-wk2  Platform: Mac OS X 10.10.5

[Joseph Pecoraro]

> New failing tests:
> webgl/1.0.2/conformance/typedarrays/data-view-test.html
> fast/canvas/webgl/data-view-test.html

Looks like these tests need to be updated.

[Joseph Pecoraro]

Created attachment 294576 [details]
[PATCH] For Landing

[Joseph Pecoraro]

<https://trac.webkit.org/changeset/208639>

[Joseph Pecoraro]

Follow-up fix for an ASSERT seen on the bots. I missed needing to converting an uncheckedArgument() to argument():
<https://trac.webkit.org/changeset/208643>