Implement an infrastructure of Blink-in-JS

Source/bindings/templates/private_script_interface.cpp

Index: Source/bindings/templates/private_script_interface.cpp
diff --git a/Source/bindings/templates/private_script_interface.cpp b/Source/bindings/templates/private_script_interface.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..f7d2874464c8ec58067c7d241195e36897e9491f
--- /dev/null
+++ b/Source/bindings/templates/private_script_interface.cpp
@@ -0,0 +1,59 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// This file has been auto-generated by {{code_generator}}. DO NOT MODIFY!
+
+#include "config.h"
+{% filter conditional(conditional_string) %}
+#include "{{v8_class}}.h"
+
+{% for filename in cpp_includes %}
+#include "{{filename}}"
+{% endfor %}
+
+namespace WebCore {
+
+{% for method in methods %}
+bool {{v8_class}}::{{method.name}}({{method.argument_declarations | join(', ')}})
+{
+    v8::Handle<v8::Context> context = toV8Context(frame, DOMWrapperWorld::privateScriptWorld());
+    if (context.IsEmpty())
+        return false;
+    ScriptState* scriptState = ScriptState::from(context);
+    ScriptState::Scope scope(scriptState);
+    LocalDOMWindow* window = scriptState->domWindow();
+    if (!window)
+        return false;
+    v8::Handle<v8::Value> windowWrapper = toV8(window, scriptState->context()->Global(), scriptState->isolate());
+
+    {% for argument in method.arguments %}
+    v8::Handle<v8::Value> {{argument.handle}} = {{argument.cpp_value_to_v8_value}};
+    {% endfor %}
+    {% if method.arguments %}

[Nils Barth (inactive), 2014/06/23 03:14:30]

Might be worth reminding people that empty array initializers are illegal, which
is why we're doing this.

+    v8::Handle<v8::Value> argv[] = { {{method.arguments | join(', ', 'handle')}} };
+    {% else %}
+    v8::Handle<v8::Value> *argv = 0;
+    {% endif %}
+    // FIXME: Support exceptions thrown from Blink-in-JS.
+    v8::TryCatch block;
+    {% if method.v8_value_to_cpp_value != '' %}

[Nils Barth (inactive), 2014/06/23 03:14:30]

Don't need to compare to '', right?
(Implicit false.)

+    v8::Handle<v8::Value> v8Value = PrivateScriptController::run(scriptState->isolate(), "{{cpp_class}}", "{{method.name}}", windowWrapper, {{method.arguments | length}}, argv);
+    if (block.HasCaught())
+        return false;
+    ExceptionState exceptionState(ExceptionState::ExecutionContext, "{{method.name}}", "{{cpp_class}}", scriptState->context()->Global(), scriptState->isolate());
+    {{method.cpp_type}} cppValue = {{method.v8_value_to_cpp_value}};
+    if (block.HasCaught())
+        return false;
+    *output = cppValue;
+    {% else %}

[Nils Barth (inactive), 2014/06/23 03:14:30]

{% else %}{# void return type #}
?

+    PrivateScriptController::run(scriptState->isolate(), "{{cpp_class}}", "{{method.name}}", windowWrapper, {{method.arguments | length}}, argv);
+    if (block.HasCaught())
+        return false;
+    {% endif %}
+    return true;
+}
+
+{% endfor %}
+} // namespace WebCore
+{% endfilter %}