JSAPI reference
js_initclass js_linkconstructorandprototype added in spidermonkey 17 js::propertyspecnameissymbol added in spidermonkey 38 js::propertyspecnameequalsid added in spidermonkey 38 js::propertyspecnametopermanentid added in spidermonkey 38 js_getreservedslot js_setreservedslot struct jsextendedclass obsolete since javascript 1.8.5 struct jsobjectops obsolete since javascript 1.8.5 struct jsxmlobjectops obsolete since javascript 1.8.5 struct jsproperty obsolete since jsapi 16 adding native properties and methods to classes: jsnative struct jsfunctionspec js_fs added in spidermonkey 1.8 js_fn added in spidermonkey 1.8 js_sym_fn added in spidermonkey 38 js_fninfo added in spidermonkey 17 js_self_hosted_fn added in spidermonkey 31 js_self_hosted_sym_fn added in spidermonkey 38 js_sym_...
...utesop obsolete since javascript 1.8.5 jsobjectops.defaultvalue obsolete since javascript 1.8.5 jscheckaccessidop obsolete since javascript 1.8.5 jsobjectop obsolete since javascript 1.8.5 jspropertyrefop obsolete since javascript 1.8.5 jssetobjectslotop obsolete since javascript 1.8.5 jsgetrequiredslotop obsolete since javascript 1.8.5 jssetrequiredslotop obsolete since javascript 1.8.5 jsxmlobjectops method types: in js 1.8.5, jsxmlobjectops has been made private.

JSGetObjectOps
further extension to preserve api compatibility: if this function returns a pointer to jsxmlobjectops.base, not to jsobjectops, then the engine calls extended hooks needed for e4x.