Obsolete since JSAPI 37
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
MOZ_TRACE_JSCALLSwas defined at compile time using
JSFunctionCallback JS_GetFunctionCallback(JSContext *cx);
||Pointer to a JS context from which to derive runtime information. Requires request. In a
JS_GetFunctionCallback returns the current function invocation callback, or
NULL if there isn't one set up.