details: http://hg.nginx.org/njs/rev/cc5ab912d455 branches: changeset: 370:cc5ab912d455 user: Dmitry Volyntsev <xei...@nginx.com> date: Mon Jun 19 14:46:39 2017 +0300 description: Object.seal() method.
diffstat: njs/njs_object.c | 45 +++++++++++++++++++++++++++++++++++++++++++++ njs/test/njs_unit_test.c | 21 +++++++++++++++++++++ 2 files changed, 66 insertions(+), 0 deletions(-) diffs (93 lines): diff -r bd6c05f66ea9 -r cc5ab912d455 njs/njs_object.c --- a/njs/njs_object.c Mon Jun 19 14:46:34 2017 +0300 +++ b/njs/njs_object.c Mon Jun 19 14:46:39 2017 +0300 @@ -803,6 +803,43 @@ done: static njs_ret_t +njs_object_seal(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs, + njs_index_t unused) +{ + nxt_lvlhsh_t *hash; + njs_object_t *object; + njs_object_prop_t *prop; + nxt_lvlhsh_each_t lhe; + + if (nargs < 2 || !njs_is_object(&args[1])) { + vm->exception = &njs_exception_type_error; + return NXT_ERROR; + } + + object = args[1].data.u.object; + object->extensible = 0; + + nxt_lvlhsh_each_init(&lhe, &njs_object_hash_proto); + + hash = &object->hash; + + for ( ;; ) { + prop = nxt_lvlhsh_each(hash, &lhe); + + if (prop == NULL) { + break; + } + + prop->configurable = 0; + } + + vm->retval = args[1]; + + return NXT_OK; +} + + +static njs_ret_t njs_object_prevent_extensions(njs_vm_t *vm, njs_value_t *args, nxt_uint_t nargs, njs_index_t unused) { @@ -1033,6 +1070,14 @@ static const njs_object_prop_t njs_obje NJS_SKIP_ARG, NJS_OBJECT_ARG), }, + /* Object.seal(). */ + { + .type = NJS_METHOD, + .name = njs_string("seal"), + .value = njs_native_function(njs_object_seal, 0, + NJS_SKIP_ARG, NJS_OBJECT_ARG), + }, + /* Object.preventExtensions(). */ { .type = NJS_METHOD, diff -r bd6c05f66ea9 -r cc5ab912d455 njs/test/njs_unit_test.c --- a/njs/test/njs_unit_test.c Mon Jun 19 14:46:34 2017 +0300 +++ b/njs/test/njs_unit_test.c Mon Jun 19 14:46:39 2017 +0300 @@ -6215,6 +6215,27 @@ static njs_unit_test_t njs_test[] = { nxt_string("var o = Object.freeze({a:1}); Object.isFrozen(o)"), nxt_string("true") }, + { nxt_string("var o = Object.seal({a:1}); o.a = 2; o.a"), + nxt_string("2") }, + + { nxt_string("var o = Object.seal({a:1}); delete o.a; o.a"), + nxt_string("1") }, + + { nxt_string("var o = Object.seal({a:1}); o.b = 1; o.b"), + nxt_string("undefined") }, + + { nxt_string("var o = Object.seal(Object.create({a:1})); o.a = 2; o.a"), + nxt_string("1") }, + + { nxt_string("var o = Object.seal({a:{b:1}}); o.a.b = 2; o.a.b"), + nxt_string("2") }, + + { nxt_string("Object.seal(1)"), + nxt_string("TypeError") }, + + { nxt_string("Object.seal('')"), + nxt_string("TypeError") }, + { nxt_string("var o = Object.preventExtensions({a:1});" "Object.defineProperty(o, 'b', {value:1})"), nxt_string("TypeError") }, _______________________________________________ nginx-devel mailing list nginx-devel@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx-devel