webkitgtk-2.16.5HEADwebkitgtk-2.16.5master

1 files changed, 90 insertions, 0 deletions

diff --git a/Source/JavaScriptCore/runtime/TemplateRegistry.cpp b/Source/JavaScriptCore/runtime/TemplateRegistry.cpp
new file mode 100644
index 000000000..9b85160e5
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+++ b/Source/JavaScriptCore/runtime/TemplateRegistry.cpp
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+/*
+ * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
+ * Copyright (C) 2016 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "TemplateRegistry.h"
+
+#include "BuiltinNames.h"
+#include "JSCInlines.h"
+#include "JSGlobalObject.h"
+#include "JSTemplateRegistryKey.h"
+#include "ObjectConstructor.h"
+#include "TemplateRegistryKey.h"
+#include "WeakGCMapInlines.h"
+
+namespace JSC {
+
+TemplateRegistry::TemplateRegistry(VM& vm)
+    : m_templateMap(vm)
+{
+}
+
+JSArray* TemplateRegistry::getTemplateObject(ExecState* exec, JSTemplateRegistryKey* templateKeyObject)
+{
+    auto& templateKey = templateKeyObject->templateRegistryKey();
+    JSArray* cached = m_templateMap.get(&templateKey);
+    if (cached)
+        return cached;
+
+    VM& vm = exec->vm();
+    auto scope = DECLARE_THROW_SCOPE(vm);
+    unsigned count = templateKey.cookedStrings().size();
+    JSArray* templateObject = constructEmptyArray(exec, nullptr, count);
+    RETURN_IF_EXCEPTION(scope, nullptr);
+    JSArray* rawObject = constructEmptyArray(exec, nullptr, count);
+    RETURN_IF_EXCEPTION(scope, nullptr);
+
+    for (unsigned index = 0; index < count; ++index) {
+        auto cooked = templateKey.cookedStrings()[index];
+        if (cooked)
+            templateObject->putDirectIndex(exec, index, jsString(exec, cooked.value()), ReadOnly | DontDelete, PutDirectIndexLikePutDirect);
+        else
+            templateObject->putDirectIndex(exec, index, jsUndefined(), ReadOnly | DontDelete, PutDirectIndexLikePutDirect);
+        RETURN_IF_EXCEPTION(scope, nullptr);
+
+        rawObject->putDirectIndex(exec, index, jsString(exec, templateKey.rawStrings()[index]), ReadOnly | DontDelete, PutDirectIndexLikePutDirect);
+        RETURN_IF_EXCEPTION(scope, nullptr);
+    }
+
+    objectConstructorFreeze(exec, rawObject);
+    ASSERT(!scope.exception());
+
+    templateObject->putDirect(vm, vm.propertyNames->raw, rawObject, ReadOnly | DontEnum | DontDelete);
+
+    // Template JSArray hold the reference to JSTemplateRegistryKey to make TemplateRegistryKey pointer live until this JSArray is collected.
+    // TemplateRegistryKey pointer is used for TemplateRegistry's key.
+    templateObject->putDirect(vm, vm.propertyNames->builtinNames().templateRegistryKeyPrivateName(), templateKeyObject, ReadOnly | DontEnum | DontDelete);
+
+    objectConstructorFreeze(exec, templateObject);
+    ASSERT(!scope.exception());
+
+    m_templateMap.set(&templateKey, templateObject);
+
+    return templateObject;
+}
+
+
+} // namespace JSC