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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/185464">185464</a></dd>
<dt>Author</dt> <dd>youenn.fablet@crf.canon.fr</dd>
<dt>Date</dt> <dd>2015-06-11 12:26:47 -0700 (Thu, 11 Jun 2015)</dd>
</dl>
<h3>Log Message</h3>
<pre>Bindings generator should generate code for Promise-based APIs
https://bugs.webkit.org/show_bug.cgi?id=145833
Reviewed by Darin Adler.
Covered by existing tests.
* Modules/webaudio/AudioContext.idl: Removing custom binding for resume, suspend and close.
* bindings/js/JSAudioContextCustom.cpp: Ditto.
* bindings/scripts/CodeGeneratorJS.pm:
(GenerateHeader): Refactoring to use IsReturningPromise.
(GenerateImplementation): Disabling include for return type if it is a promise.
(GenerateParametersCheck): Adding DeferredWrapper() as argument to the DOM method if JS method returns a promise.
(GenerateImplementationFunctionCall): Added support for promise-returning API.
(IsReturningPromise): Checking whether function is returning a promise.
* bindings/scripts/test/GObject/WebKitDOMTestObj.cpp:
(webkit_dom_test_obj_test_promise_function):
* bindings/scripts/test/GObject/WebKitDOMTestObj.h:
* bindings/scripts/test/JS/JSTestObj.cpp:
(WebCore::jsTestObjPrototypeFunctionTestPromiseFunction):
* bindings/scripts/test/ObjC/DOMTestObj.h:
* bindings/scripts/test/ObjC/DOMTestObj.mm:
(-[DOMTestObj testPromiseFunction]):
* bindings/scripts/test/TestObj.idl: Adding promise returning function.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCoreModuleswebaudioAudioContextidl">trunk/Source/WebCore/Modules/webaudio/AudioContext.idl</a></li>
<li><a href="#trunkSourceWebCorebindingsjsJSAudioContextCustomcpp">trunk/Source/WebCore/bindings/js/JSAudioContextCustom.cpp</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptsCodeGeneratorJSpm">trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptstestGObjectWebKitDOMTestObjcpp">trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.cpp</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptstestGObjectWebKitDOMTestObjh">trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.h</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptstestJSJSTestObjcpp">trunk/Source/WebCore/bindings/scripts/test/JS/JSTestObj.cpp</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptstestObjCDOMTestObjh">trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.h</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptstestObjCDOMTestObjmm">trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.mm</a></li>
<li><a href="#trunkSourceWebCorebindingsscriptstestTestObjidl">trunk/Source/WebCore/bindings/scripts/test/TestObj.idl</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/ChangeLog 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -1,3 +1,31 @@
</span><ins>+2015-06-11 Youenn Fablet <youenn.fablet@crf.canon.fr>
+
+ Bindings generator should generate code for Promise-based APIs
+ https://bugs.webkit.org/show_bug.cgi?id=145833
+
+ Reviewed by Darin Adler.
+
+ Covered by existing tests.
+
+ * Modules/webaudio/AudioContext.idl: Removing custom binding for resume, suspend and close.
+ * bindings/js/JSAudioContextCustom.cpp: Ditto.
+ * bindings/scripts/CodeGeneratorJS.pm:
+ (GenerateHeader): Refactoring to use IsReturningPromise.
+ (GenerateImplementation): Disabling include for return type if it is a promise.
+ (GenerateParametersCheck): Adding DeferredWrapper() as argument to the DOM method if JS method returns a promise.
+ (GenerateImplementationFunctionCall): Added support for promise-returning API.
+ (IsReturningPromise): Checking whether function is returning a promise.
+ * bindings/scripts/test/GObject/WebKitDOMTestObj.cpp:
+ (webkit_dom_test_obj_test_promise_function):
+ * bindings/scripts/test/GObject/WebKitDOMTestObj.h:
+ * bindings/scripts/test/JS/JSTestObj.cpp:
+ (WebCore::jsTestObjPrototypeFunctionTestPromiseFunction):
+ * bindings/scripts/test/ObjC/DOMTestObj.h:
+ * bindings/scripts/test/ObjC/DOMTestObj.mm:
+ (-[DOMTestObj testPromiseFunction]):
+ * bindings/scripts/test/TestObj.idl: Adding promise returning function.
+
+
</ins><span class="cx"> 2015-06-08 Simon Fraser <simon.fraser@apple.com>
</span><span class="cx">
</span><span class="cx"> Missing content in UIWebView snapshots sometimes
</span></span></pre></div>
<a id="trunkSourceWebCoreModuleswebaudioAudioContextidl"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/Modules/webaudio/AudioContext.idl (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/Modules/webaudio/AudioContext.idl 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/Modules/webaudio/AudioContext.idl 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -50,9 +50,9 @@
</span><span class="cx"> // All panning is relative to this listener.
</span><span class="cx"> readonly attribute AudioListener listener;
</span><span class="cx">
</span><del>- [Custom] Promise suspend();
- [Custom] Promise resume();
- [Custom] Promise close();
</del><ins>+ Promise suspend();
+ Promise resume();
+ Promise close();
</ins><span class="cx">
</span><span class="cx"> readonly attribute AudioContextState state;
</span><span class="cx"> attribute EventHandler onstatechange;
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsjsJSAudioContextCustomcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/js/JSAudioContextCustom.cpp (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/js/JSAudioContextCustom.cpp 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/js/JSAudioContextCustom.cpp 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -111,33 +111,6 @@
</span><span class="cx"> return JSValue::encode(CREATE_DOM_WRAPPER(jsConstructor->globalObject(), AudioContext, audioContext.get()));
</span><span class="cx"> }
</span><span class="cx">
</span><del>-JSValue JSAudioContext::suspend(ExecState* state)
-{
- JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(state, globalObject());
-
- impl().suspend(DeferredWrapper(state, globalObject(), promiseDeferred));
-
- return promiseDeferred->promise();
-}
-
-JSValue JSAudioContext::resume(ExecState* state)
-{
- JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(state, globalObject());
-
- impl().resume(DeferredWrapper(state, globalObject(), promiseDeferred));
-
- return promiseDeferred->promise();
-}
-
-JSValue JSAudioContext::close(ExecState* state)
-{
- JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(state, globalObject());
-
- impl().close(DeferredWrapper(state, globalObject(), promiseDeferred));
-
- return promiseDeferred->promise();
-}
-
</del><span class="cx"> } // namespace WebCore
</span><span class="cx">
</span><span class="cx"> #endif // ENABLE(WEB_AUDIO)
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptsCodeGeneratorJSpm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/scripts/CodeGeneratorJS.pm 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -1047,7 +1047,7 @@
</span><span class="cx"> $needsVisitChildren = 1;
</span><span class="cx"> push(@headerContent, "#endif\n") if $conditionalString;
</span><span class="cx"> }
</span><del>- elsif ($attribute->signature->type eq "Promise") {
</del><ins>+ elsif (IsReturningPromise($attribute)) {
</ins><span class="cx"> $headerIncludes{"JSDOMPromise.h"} = 1;
</span><span class="cx">
</span><span class="cx"> my $conditionalString = $codeGenerator->GenerateConditionalString($attribute->signature);
</span><span class="lines">@@ -2759,7 +2759,7 @@
</span><span class="cx">
</span><span class="cx"> next if $isCustom && $isOverloaded && $function->{overloadIndex} > 1;
</span><span class="cx">
</span><del>- AddIncludesForTypeInImpl($function->signature->type) unless $isCustom;
</del><ins>+ AddIncludesForTypeInImpl($function->signature->type) unless $isCustom or IsReturningPromise($function);
</ins><span class="cx">
</span><span class="cx"> my $functionName = GetFunctionName($className, $function);
</span><span class="cx">
</span><span class="lines">@@ -3386,6 +3386,8 @@
</span><span class="cx"> $argsIndex++;
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+ push(@arguments, "DeferredWrapper(exec, castedThis->globalObject(), promiseDeferred)") if IsReturningPromise($function);
+
</ins><span class="cx"> push(@arguments, "ec") if $raisesException;
</span><span class="cx">
</span><span class="cx"> return ("$functionName(" . join(", ", @arguments) . ")", scalar @arguments);
</span><span class="lines">@@ -3654,9 +3656,17 @@
</span><span class="cx"> push(@implContent, "#else\n");
</span><span class="cx"> push(@implContent, $indent . "result = " . NativeToJSValue($function->signature, 1, $interfaceName, $functionString, $thisObject) . ";\n");
</span><span class="cx"> push(@implContent, "#endif\n");
</span><ins>+ } elsif (IsReturningPromise($function)) {
+ AddToImplIncludes("JSDOMPromise.h");
+
+ push(@implContent, $indent . "auto* promiseDeferred = JSPromiseDeferred::create(exec, castedThis->globalObject());\n");
+ push(@implContent, $indent . $functionString . ";\n");
+ push(@implContent, $indent . "JSValue result = promiseDeferred->promise();\n");
+
</ins><span class="cx"> } else {
</span><span class="cx"> push(@implContent, $indent . "JSValue result = " . NativeToJSValue($function->signature, 1, $interfaceName, $functionString, $thisObject) . ";\n");
</span><span class="cx"> }
</span><ins>+ # FIXME: In case of IsReturningPromise($function), the function should not throw. Exception should be used to reject the promise callback.
</ins><span class="cx"> push(@implContent, "\n" . $indent . "setDOMException(exec, ec);\n") if $raisesException;
</span><span class="cx">
</span><span class="cx"> if ($codeGenerator->ExtendedAttributeContains($function->signature->extendedAttributes->{"CallWith"}, "ScriptState")) {
</span><span class="lines">@@ -4774,6 +4784,13 @@
</span><span class="cx"> return !$interface->extendedAttributes->{"NoInterfaceObject"} || $interface->extendedAttributes->{"CustomConstructor"};
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+sub IsReturningPromise
+{
+ my $function = shift;
+
+ return $function->signature->type eq "Promise";
+}
+
</ins><span class="cx"> sub IsConstructable
</span><span class="cx"> {
</span><span class="cx"> my $interface = shift;
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptstestGObjectWebKitDOMTestObjcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.cpp (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.cpp 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.cpp 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -33,6 +33,7 @@
</span><span class="cx"> #include "WebKitDOMDocumentPrivate.h"
</span><span class="cx"> #include "WebKitDOMNodePrivate.h"
</span><span class="cx"> #include "WebKitDOMPrivate.h"
</span><ins>+#include "WebKitDOMPromisePrivate.h"
</ins><span class="cx"> #include "WebKitDOMSVGPointPrivate.h"
</span><span class="cx"> #include "WebKitDOMTestEnumTypePrivate.h"
</span><span class="cx"> #include "WebKitDOMTestNodePrivate.h"
</span><span class="lines">@@ -1551,6 +1552,15 @@
</span><span class="cx"> item->any(a, b);
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+WebKitDOMPromise* webkit_dom_test_obj_test_promise_function(WebKitDOMTestObj* self)
+{
+ WebCore::JSMainThreadNullState state;
+ g_return_val_if_fail(WEBKIT_DOM_IS_TEST_OBJ(self), 0);
+ WebCore::TestObj* item = WebKit::core(self);
+ RefPtr<WebCore::Promise> gobjectResult = WTF::getPtr(item->testPromiseFunction());
+ return WebKit::kit(gobjectResult.get());
+}
+
</ins><span class="cx"> glong webkit_dom_test_obj_get_read_only_long_attr(WebKitDOMTestObj* self)
</span><span class="cx"> {
</span><span class="cx"> WebCore::JSMainThreadNullState state;
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptstestGObjectWebKitDOMTestObjh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.h (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.h 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/scripts/test/GObject/WebKitDOMTestObj.h 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -651,6 +651,17 @@
</span><span class="cx"> webkit_dom_test_obj_any(WebKitDOMTestObj* self, gfloat a, glong b);
</span><span class="cx">
</span><span class="cx"> /**
</span><ins>+ * webkit_dom_test_obj_test_promise_function:
+ * @self: A #WebKitDOMTestObj
+ *
+ * Returns: (transfer none): A #WebKitDOMPromise
+ *
+ * Stability: Unstable
+**/
+WEBKIT_API WebKitDOMPromise*
+webkit_dom_test_obj_test_promise_function(WebKitDOMTestObj* self);
+
+/**
</ins><span class="cx"> * webkit_dom_test_obj_get_read_only_long_attr:
</span><span class="cx"> * @self: A #WebKitDOMTestObj
</span><span class="cx"> *
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptstestJSJSTestObjcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/test/JS/JSTestObj.cpp (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/test/JS/JSTestObj.cpp 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/scripts/test/JS/JSTestObj.cpp 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -29,6 +29,7 @@
</span><span class="cx"> #include "Frame.h"
</span><span class="cx"> #include "HTMLNames.h"
</span><span class="cx"> #include "JSDOMBinding.h"
</span><ins>+#include "JSDOMPromise.h"
</ins><span class="cx"> #include "JSDOMStringList.h"
</span><span class="cx"> #include "JSDocument.h"
</span><span class="cx"> #include "JSEventListener.h"
</span><span class="lines">@@ -154,6 +155,7 @@
</span><span class="cx"> JSC::EncodedJSValue JSC_HOST_CALL jsTestObjPrototypeFunctionVariadicDoubleMethod(JSC::ExecState*);
</span><span class="cx"> JSC::EncodedJSValue JSC_HOST_CALL jsTestObjPrototypeFunctionVariadicNodeMethod(JSC::ExecState*);
</span><span class="cx"> JSC::EncodedJSValue JSC_HOST_CALL jsTestObjPrototypeFunctionAny(JSC::ExecState*);
</span><ins>+JSC::EncodedJSValue JSC_HOST_CALL jsTestObjPrototypeFunctionTestPromiseFunction(JSC::ExecState*);
</ins><span class="cx">
</span><span class="cx"> // Attributes
</span><span class="cx">
</span><span class="lines">@@ -648,6 +650,7 @@
</span><span class="cx"> { "variadicDoubleMethod", JSC::Function, NoIntrinsic, (intptr_t)static_cast<NativeFunction>(jsTestObjPrototypeFunctionVariadicDoubleMethod), (intptr_t) (2) },
</span><span class="cx"> { "variadicNodeMethod", JSC::Function, NoIntrinsic, (intptr_t)static_cast<NativeFunction>(jsTestObjPrototypeFunctionVariadicNodeMethod), (intptr_t) (2) },
</span><span class="cx"> { "any", JSC::Function, NoIntrinsic, (intptr_t)static_cast<NativeFunction>(jsTestObjPrototypeFunctionAny), (intptr_t) (2) },
</span><ins>+ { "testPromiseFunction", JSC::Function, NoIntrinsic, (intptr_t)static_cast<NativeFunction>(jsTestObjPrototypeFunctionTestPromiseFunction), (intptr_t) (0) },
</ins><span class="cx"> };
</span><span class="cx">
</span><span class="cx"> const ClassInfo JSTestObjPrototype::s_info = { "TestObjectPrototype", &Base::s_info, 0, CREATE_METHOD_TABLE(JSTestObjPrototype) };
</span><span class="lines">@@ -4423,6 +4426,20 @@
</span><span class="cx"> return JSValue::encode(jsUndefined());
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+EncodedJSValue JSC_HOST_CALL jsTestObjPrototypeFunctionTestPromiseFunction(ExecState* exec)
+{
+ JSValue thisValue = exec->thisValue();
+ JSTestObj* castedThis = jsDynamicCast<JSTestObj*>(thisValue);
+ if (UNLIKELY(!castedThis))
+ return throwThisTypeError(*exec, "TestObj", "testPromiseFunction");
+ ASSERT_GC_OBJECT_INHERITS(castedThis, JSTestObj::info());
+ auto& impl = castedThis->impl();
+ JSPromiseDeferred* promiseDeferred = JSPromiseDeferred::create(exec, castedThis->globalObject());
+ impl.testPromiseFunction(DeferredWrapper(exec, castedThis->globalObject(), promiseDeferred));
+ JSValue result = promiseDeferred->promise();
+ return JSValue::encode(result);
+}
+
</ins><span class="cx"> void JSTestObj::visitChildren(JSCell* cell, SlotVisitor& visitor)
</span><span class="cx"> {
</span><span class="cx"> auto* thisObject = jsCast<JSTestObj*>(cell);
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptstestObjCDOMTestObjh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.h (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.h 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.h 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -173,4 +173,5 @@
</span><span class="cx"> - (void)variadicDoubleMethod:(double)head tail:(double)tail;
</span><span class="cx"> - (void)variadicNodeMethod:(DOMNode *)head tail:(DOMNode *)tail;
</span><span class="cx"> - (void)any:(float)a b:(int)b;
</span><ins>+- (DOMPromise *)testPromiseFunction;
</ins><span class="cx"> @end
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptstestObjCDOMTestObjmm"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.mm (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.mm 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/scripts/test/ObjC/DOMTestObj.mm 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -1183,6 +1183,12 @@
</span><span class="cx"> IMPL->any(a, b);
</span><span class="cx"> }
</span><span class="cx">
</span><ins>+- (DOMPromise *)testPromiseFunction
+{
+ WebCore::JSMainThreadNullState state;
+ return kit(WTF::getPtr(IMPL->testPromiseFunction()));
+}
+
</ins><span class="cx"> @end
</span><span class="cx">
</span><span class="cx"> WebCore::TestObj* core(DOMTestObj *wrapper)
</span></span></pre></div>
<a id="trunkSourceWebCorebindingsscriptstestTestObjidl"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/bindings/scripts/test/TestObj.idl (185463 => 185464)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/bindings/scripts/test/TestObj.idl 2015-06-11 18:33:51 UTC (rev 185463)
+++ trunk/Source/WebCore/bindings/scripts/test/TestObj.idl 2015-06-11 19:26:47 UTC (rev 185464)
</span><span class="lines">@@ -274,6 +274,8 @@
</span><span class="cx"> // Promise attributes
</span><span class="cx"> [CustomGetter] readonly attribute Promise testPromiseAttr;
</span><span class="cx">
</span><ins>+ // Promise function
+ Promise testPromiseFunction();
</ins><span class="cx"> };
</span><span class="cx">
</span><span class="cx"> // The following comment should not generate any code.
</span></span></pre>
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