[Gnash-commit] [bug #47004] Gnash didn't pass string return value "Error" and "SecurityError" from ExternalInterface callback

[Nutchanon Wetchasit]

Follow-up Comment #7, bug #47004 (project gnash):

Also, there seems to be some mismatching interpretation of `undefined` value
in Gnash's ExternalInterface implementation:

                            | NPAPI libgnashplugin   | Gnash (player)
============================+========================+=======================
Flash returns to JavaScript | <void/> [1]            | <undefined/> [2]
JavaScript returns to Flash | <void/> [3]            | <void/> [4]


According to the table, the marshalling result of JavaScript and
ActionScript's `undefined` value is supposed to be "<void/>". As current
container-emulated tests
<http://git.savannah.gnu.org/cgit/gnash.git/tree/testsuite/misc-mtasc.all/extcommtests-runner.sh?id=435d3e9aa7864883f6a2379fd318126113786475#n235>
are currently interpreting `undefined` as
"<undefined/>", not "<void/>" (following current Gnash player's output),
it would need to be adjusted when this bug is fixed.

Side note: `GetVariable()` plugin function and associated tests are not
affected by this discrepancy as the function does not return `undefined`
value.

Gnash: 0.8.11dev (git 435d3e9 6-Feb-2016)
System: Debian GNU/Linux 7.0 Wheezy i386

[1]
http://git.savannah.gnu.org/cgit/gnash.git/tree/plugin/npapi/external.cpp?id=435d3e9aa7864883f6a2379fd318126113786475#n286
[2]
http://git.savannah.gnu.org/cgit/gnash.git/tree/libcore/ExternalInterface.cpp?id=435d3e9aa7864883f6a2379fd318126113786475#n117
[3]
http://git.savannah.gnu.org/cgit/gnash.git/tree/plugin/npapi/external.cpp?id=435d3e9aa7864883f6a2379fd318126113786475#n377
[4]
http://git.savannah.gnu.org/cgit/gnash.git/tree/libcore/ExternalInterface.cpp?id=435d3e9aa7864883f6a2379fd318126113786475#n245


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