Import Dart bindings as of Blink r188698. This merely copies the files over and does not attach any…

sky/engine/bindings-dart/core/dart/DartJsInteropData.cpp

Index: sky/engine/bindings-dart/core/dart/DartJsInteropData.cpp
diff --git a/sky/engine/bindings/core/v8/ScriptString.cpp b/sky/engine/bindings-dart/core/dart/DartJsInteropData.cpp
similarity index 53%
copy from sky/engine/bindings/core/v8/ScriptString.cpp
copy to sky/engine/bindings-dart/core/dart/DartJsInteropData.cpp
index 845be34d17dbacccf2c692f78dbb8089ea812a2b..ddad8454cfe4cbfd15fe5a12e62484bead3e6e8b 100644
--- a/sky/engine/bindings/core/v8/ScriptString.cpp
+++ b/sky/engine/bindings-dart/core/dart/DartJsInteropData.cpp
@@ -27,57 +27,50 @@
  * (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 "sky/engine/config.h"
-#include "sky/engine/bindings/core/v8/ScriptString.h"
+#include "bindings/core/dart/DartJsInteropData.h"
 
-#include "sky/engine/bindings/core/v8/V8Binding.h"
+#include <string.h>
 
 namespace blink {
 
-ScriptString::ScriptString()
-    : m_isolate(0)
+v8::Local<v8::Function> DartJsInteropData::cacheFunction(v8::Persistent<v8::Function>* cache, const char* scriptSrc)
 {
-}
-
-ScriptString::ScriptString(v8::Isolate* isolate, v8::Handle<v8::String> string)
-    : m_isolate(isolate)
-    , m_string(SharedPersistent<v8::String>::create(string, m_isolate))
-{
-}
-
-ScriptString& ScriptString::operator=(const ScriptString& string)
-{
-    if (this != &string) {
-        m_isolate = string.m_isolate;
-        m_string = string.m_string;
+    v8::Isolate* v8Isolate = v8::Isolate::GetCurrent();
+    if (cache->IsEmpty()) {
+        v8::Local<v8::Function> localFunction = v8::Local<v8::Function>::Cast(v8::Script::Compile(v8::String::NewFromUtf8(v8Isolate, scriptSrc))->Run());
+        cache->Reset(v8Isolate, localFunction);
+        return localFunction;
     }
-    return *this;
+    return v8::Local<v8::Function>::New(v8Isolate, *cache);
 }
 
-v8::Handle<v8::String> ScriptString::v8Value()
+v8::Local<v8::Function> DartJsInteropData::captureThisFunction()
 {
-    if (isEmpty())
-        return v8::Handle<v8::String>();
-    return m_string->newLocal(isolate());
+    const char* scriptSrc = "(function () {"
+        "   var func = this;"
+        "   return function () {"
+        "       return func(this, Array.prototype.slice.apply(arguments));"
+        "   };"
+        "})";
+    return cacheFunction(&m_captureThisFunction, scriptSrc);
 }
 
-ScriptString ScriptString::concatenateWith(const String& string)
+v8::Local<v8::Function> DartJsInteropData::wrapDartFunction()
 {
-    v8::Isolate* nonNullIsolate = isolate();
-    v8::HandleScope handleScope(nonNullIsolate);
-    v8::Handle<v8::String> targetString = v8String(nonNullIsolate, string);
-    if (isEmpty())
-        return ScriptString(nonNullIsolate, targetString);
-    return ScriptString(nonNullIsolate, v8::String::Concat(v8Value(), targetString));
+    const char* scriptSrc = "(function () {"
+        "   var func = this;"
+        "   return function () {"
+        "       return func(Array.prototype.slice.apply(arguments));"
+        "   };"
+        "})";
+    return cacheFunction(&m_wrapDartFunction, scriptSrc);
 }
 
-String ScriptString::flattenToString()
+v8::Local<v8::Function> DartJsInteropData::instanceofFunction()
 {
-    if (isEmpty())
-        return String();
-    v8::HandleScope handleScope(isolate());
-    return v8StringToWebCoreString<String>(v8Value(), Externalize);
+    return cacheFunction(&m_instanceofFunction, "(function (type) { return this instanceof type; })");
 }
 
-} // namespace blink
+}