[Blink-in-JS] 'Import' function to load sub-modules and other resources for private scripts (Part-3)

Source/bindings/core/v8/PrivateScriptRunner.cpp

Index: Source/bindings/core/v8/PrivateScriptRunner.cpp
diff --git a/Source/bindings/core/v8/PrivateScriptRunner.cpp b/Source/bindings/core/v8/PrivateScriptRunner.cpp
index 9dcc4cc107717fb46fe5e48163afc4dbd84e41a1..abc98d0dc69744204c2a4fb793c69db7b18ada3b 100644
--- a/Source/bindings/core/v8/PrivateScriptRunner.cpp
+++ b/Source/bindings/core/v8/PrivateScriptRunner.cpp
@@ -40,12 +40,20 @@ static void dumpV8Message(v8::Handle<v8::Message> message)
     v8::Handle<v8::String> errorMessage = message->Get();
     fprintf(stderr, "%s (line %d): %s\n", fileName.utf8().data(), lineNumber, toCoreString(errorMessage).utf8().data());
 }
+static void includeFunction(const v8::FunctionCallbackInfo<v8::Value>& args);
 
 static v8::Handle<v8::Value> compileAndRunPrivateScript(v8::Isolate* isolate, String scriptClassName, const char* source, size_t size)
 {
     v8::TryCatch block;
     String sourceString(source, size);
     String fileName = scriptClassName + ".js";
+
+    v8::Handle<v8::Context> context = isolate->GetCurrentContext();
+    v8::Handle<v8::Object> global = context->Global();
+    v8::Handle<v8::Value> includeFunctionObject = global->Get(v8String(isolate, "include"));
+    if (isUndefinedOrNull(includeFunctionObject))
+        global->Set(v8String(isolate, "include"), v8::FunctionTemplate::New(isolate, includeFunction)->GetFunction());
+
     v8::Handle<v8::Script> script = V8ScriptRunner::compileScript(v8String(isolate, sourceString), fileName, TextPosition::minimumPosition(), 0, 0, isolate, NotSharableCrossOrigin);
     if (block.HasCaught()) {
         fprintf(stderr, "Private script error: Compile failed. (Class name = %s)\n", scriptClassName.utf8().data());
@@ -62,6 +70,14 @@ static v8::Handle<v8::Value> compileAndRunPrivateScript(v8::Isolate* isolate, St
     return result;
 }
 
+void includeFunction(const v8::FunctionCallbackInfo<v8::Value>& args)
+{
+    RELEASE_ASSERT(args.Length() == 1);
+    String scriptFileName = toCoreString(args[0]->ToString());
+    String resourceData = loadResourceAsASCIIString(scriptFileName.utf8().data());
+    compileAndRunPrivateScript(args.GetIsolate(), scriptFileName, resourceData.utf8().data(), resourceData.length());

[vivekg, 2014/11/25 07:12:32]

Calling the compileAndRunPrivateScript enables the authors to call 'include' in
cascaded order.

e.g. DocumentXMLTreeViewer.js ---includes---> A.js ---includes---> B.js ...

+}
+
 // FIXME: If we have X.js, XPartial-1.js and XPartial-2.js, currently all of the JS files
 // are compiled when any of the JS files is requested. Ideally we should avoid compiling
 // unrelated JS files. For example, if a method in XPartial-1.js is requested, we just