axmol/scripting/javascript/bindings/spidermonkey_specifics.h

#ifndef __SPIDERMONKEY_SPECIFICS_H__
#define __SPIDERMONKEY_SPECIFICS_H__

#include "jsapi.h"
#include "support/data_support/uthash.h"

typedef struct js_proxy {
	void *ptr;
	JSObject *obj;
	UT_hash_handle hh;
} js_proxy_t;

extern js_proxy_t *_native_js_global_ht;
extern js_proxy_t *_js_native_global_ht;

typedef struct js_type_class {
	uint32_t type;
	JSClass *jsclass;
	JSObject *proto;
	JSObject *parentProto;
	UT_hash_handle hh;
} js_type_class_t;

extern js_type_class_t *_js_global_type_ht;

template< typename DERIVED >
class TypeTest
{
	public:
	static int s_id()
	{
		// return id unique for DERIVED
		// NOT SURE IT WILL BE REALLY UNIQUE FOR EACH CLASS!!
		/* Commented by James Chen
		Using 'getHashCodeByString(typeid(*native_obj).name())' instead of 'reinterpret_cast<long>(typeid(*native_obj).name());'.
		Since on win32 platform, 'reinterpret_cast<long>(typeid(*native_obj).name());' invoking in cocos2d.dll and outside cocos2d.dll(in TestJavascript.exe) will return different address.
		But the return string from typeid(*native_obj).name() is the same string, so we must convert the string to hash id to make sure we can get unique id.
		*/
		// static const long id = reinterpret_cast<long>(typeid( DERIVED ).name());
        static const long id = typeid( DERIVED ).hash_code();
		return id;
	}

	static const char* s_name()
	{
		// return id unique for DERIVED
		// ALWAYS VALID BUT STRING, NOT INT - BUT VALID AND CROSS-PLATFORM/CROSS-VERSION COMPATBLE
		// AS FAR AS YOU KEEP THE CLASS NAME
		return typeid( DERIVED ).name();
	}
};


#define JS_NEW_PROXY(p, native_obj, js_obj) \
do { \
	p = (js_proxy_t *)malloc(sizeof(js_proxy_t)); \
	assert(p); \
    js_proxy_t* native_obj##js_obj##tmp = NULL; \
    HASH_FIND_PTR(_native_js_global_ht, &native_obj, native_obj##js_obj##tmp); \
    assert(!native_obj##js_obj##tmp); \
	p->ptr = native_obj; \
	p->obj = js_obj; \
	HASH_ADD_PTR(_native_js_global_ht, ptr, p); \
	p = (js_proxy_t *)malloc(sizeof(js_proxy_t)); \
	assert(p); \
    native_obj##js_obj##tmp = NULL; \
    HASH_FIND_PTR(_js_native_global_ht, &js_obj, native_obj##js_obj##tmp); \
    assert(!native_obj##js_obj##tmp); \
	p->ptr = native_obj; \
	p->obj = js_obj; \
	HASH_ADD_PTR(_js_native_global_ht, obj, p); \
} while(0) \

#define JS_GET_PROXY(p, native_obj) \
do { \
	HASH_FIND_PTR(_native_js_global_ht, &native_obj, p); \
} while (0)

#define JS_GET_NATIVE_PROXY(p, js_obj) \
do { \
	HASH_FIND_PTR(_js_native_global_ht, &js_obj, p); \
} while (0)

#define JS_REMOVE_PROXY(nproxy, jsproxy) \
do { \
	if (nproxy) { HASH_DEL(_native_js_global_ht, nproxy); free(nproxy); } \
	if (jsproxy) { HASH_DEL(_js_native_global_ht, jsproxy); free(jsproxy); } \
} while (0)

#define TEST_NATIVE_OBJECT(cx, native_obj) \
if (!native_obj) { \
	JS_ReportError(cx, "Invalid Native Object"); \
	return JS_FALSE; \
}

#endif