This patch generates binding code for C++ methods that contains std::function parameters. This depends on an implementation of "JSFunctionWrapper", which is added to cocos2d-x in another pull-request.
Unfortunately, libclang doesn't give structured type information for template arguments, so this binding code will not work for some complex arguments. For example, it won't generate binding code for a std::function that contains std::functions as parameters or return values. It will work for most simple arguments: void, int, Dictionary*, objects, etc.
For example for:
class Foo {
static void addHandler(const std::function<void ()> handler);
};
This would generate something like:
do {
std::shared_ptr func(new JSFunctionWrapper(cx, JS_THIS_OBJECT(cx, vp), argv[0]));
auto lambda = [=]() -> void {
jsval largv[0];
jsval rval;
JSBool ok = func->invoke(0, &largv[0], rval);
if (!ok && JS_IsExceptionPending(cx)) {
JS_ReportPendingException(cx);
}
};
arg0 = lambda;
} while(0)
;
dumganhar
commented
11 years ago
This patch generates binding code for C++ methods that contains std::function parameters. This depends on an implementation of "JSFunctionWrapper", which is added to cocos2d-x in another pull-request.
Unfortunately, libclang doesn't give structured type information for template arguments, so this binding code will not work for some complex arguments. For example, it won't generate binding code for a std::function that contains std::functions as parameters or return values. It will work for most simple arguments: void, int, Dictionary*, objects, etc.
For example for:
class Foo { static void addHandler(const std::function<void ()> handler); };
This would generate something like:
do { std::shared_ptr func(new JSFunctionWrapper(cx, JS_THIS_OBJECT(cx, vp), argv[0]));
auto lambda = [=]() -> void {
jsval largv[0];
jsval rval;
JSBool ok = func->invoke(0, &largv[0], rval);
if (!ok && JS_IsExceptionPending(cx)) {
JS_ReportPendingException(cx);
}
};
arg0 = lambda;
} while(0)
;