Web Inspector: ES6: Improved Support for Iterator Objects

Web Inspector: ES6: Improved Support for Iterator Objects
https://bugs.webkit.org/show_bug.cgi?id=142420

Patch by Joseph Pecoraro <pecoraro@apple.com> on 2015-03-06
Reviewed by Timothy Hatcher.

Source/JavaScriptCore:

* inspector/protocol/Runtime.json:
Add new object subtype "iterator" for built-in iterator objects.

* inspector/InjectedScriptSource.js:
Return iterator values as Entry objects.

* inspector/JSInjectedScriptHost.cpp:
(Inspector::JSInjectedScriptHost::subtype):
Identify "iterator" typed objects.

(Inspector::JSInjectedScriptHost::getInternalProperties):
Provide internal properties for the different Iterator objects.

(Inspector::JSInjectedScriptHost::iteratorEntries):
Fetch the next few iterator entries of a built-in iterator object.

* inspector/JSInjectedScriptHost.h:
* inspector/JSInjectedScriptHostPrototype.cpp:
(Inspector::JSInjectedScriptHostPrototype::finishCreation):
(Inspector::jsInjectedScriptHostPrototypeFunctionIteratorEntries):
Call through to JSInjectedScriptHost.

* runtime/JSArgumentsIterator.cpp:
(JSC::JSArgumentsIterator::clone):
* runtime/JSArgumentsIterator.h:
(JSC::JSArgumentsIterator::iteratedValue):
* runtime/JSArrayIterator.cpp:
(JSC::JSArrayIterator::kind):
(JSC::JSArrayIterator::iteratedValue):
(JSC::JSArrayIterator::clone):
* runtime/JSArrayIterator.h:
* runtime/JSMapIterator.cpp:
(JSC::JSMapIterator::finishCreation):
(JSC::JSMapIterator::clone):
* runtime/JSMapIterator.h:
(JSC::JSMapIterator::kind):
(JSC::JSMapIterator::iteratedValue):
* runtime/JSSetIterator.cpp:
(JSC::JSSetIterator::finishCreation):
(JSC::JSSetIterator::clone):
* runtime/JSSetIterator.h:
(JSC::JSSetIterator::kind):
(JSC::JSSetIterator::iteratedValue):
* runtime/JSStringIterator.cpp:
(JSC::JSStringIterator::iteratedValue):
(JSC::JSStringIterator::clone):
* runtime/JSStringIterator.h:
Add accessors for internal properties and provide a way to clone the
iterator so we can be at the same index and peek at the next few
objects without modifying the original iterator object.

Source/WebInspectorUI:

* UserInterface/Views/ConsoleMessageImpl.js:
(WebInspector.ConsoleMessageImpl):
Treat an iterator like an object.

* UserInterface/Views/ObjectPreviewView.js:
Output iterator previews with []s, not {}s.

LayoutTests:

* inspector/model/remote-object.html:
Update tests to include iterator objects.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@181203 268f45cc-cd09-0410-ab3c-d52691b4dbfc