Hey, it's me again.
I'm trying to use a global JavaScript file with internal definitions from a
game engine. So far so good, but I need to get one of those constructors
defined in the JavaScript to create a new object in C++ land.
What I tried is something like this:
v8::Local<v8::Context> ctx = p_isolate->GetCurrentContext();
v8::Local<v8::Function> constructor = v8::Local<v8::Function>::Cast(ctx->
Global()->Get(
v8::String::NewFromUtf8(p_isolate, "Vector2")));
v8::Local<v8::Value> cargs[] = { v8::Number::New(p_isolate, vec.x), v8::
Number::New(p_isolate, vec.y) };
v8::Local<v8::Object> instance = v8::Local<v8::Object>::Cast(constructor->
CallAsConstructor(2, cargs));
However, this give an error as it can't find the Vector2 constructor. I can
use the constructor normally in JavaScript land.
If I make the Vector2 constructor as a C++ function, this code works
perfectly. However, I believe it has a better performance to reimplement
those core types in JS than to keep passing around an object and calling
C++ functions with a bunch of handles (I might be wrong though). This would
also mitigate the memory management overhead, I think, which I haven't yet
got into.
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