int duk_bi_buffer_prototype_tostring_shared(duk_context *ctx) {
duk_tval *tv;
int to_string = duk_get_magic(ctx);
duk_push_this(ctx);
tv = duk_require_tval(ctx, -1);
DUK_ASSERT(tv != NULL);
if (DUK_TVAL_IS_BUFFER(tv)) {
/* nop */
} else if (DUK_TVAL_IS_OBJECT(tv)) {
duk_hobject *h = DUK_TVAL_GET_OBJECT(tv);
DUK_ASSERT(h != NULL);
/* Must be a "buffer object", i.e. class "Buffer" */
if (DUK_HOBJECT_GET_CLASS_NUMBER(h) != DUK_HOBJECT_CLASS_BUFFER) {
goto type_error;
}
duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_VALUE);
} else {
goto type_error;
}
if (to_string) {
duk_to_string(ctx, -1);
}
return 1;
type_error:
return DUK_RET_TYPE_ERROR;
}
/* Shared helper to implement ES6 Object.setPrototypeOf and
* Object.prototype.__proto__ setter.
*
* https://people.mozilla.org/~jorendorff/es6-draft.html#sec-get-object.prototype.__proto__
* https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.setprototypeof
*/
duk_ret_t duk_bi_object_setprototype_shared(duk_context *ctx) {
duk_hthread *thr = (duk_hthread *) ctx;
duk_hobject *h_obj;
duk_hobject *h_new_proto;
duk_hobject *h_curr;
int ret_success = 1;
/* Preliminaries for __proto__ and setPrototypeOf (E6 19.1.2.18 steps 1-4);
* magic: 0=setter call, 1=Object.setPrototypeOf
*/
if (duk_get_magic(ctx) == 0) {
duk_push_this_check_object_coercible(ctx);
duk_insert(ctx, 0);
if (!duk_check_type_mask(ctx, 1, DUK_TYPE_MASK_NULL | DUK_TYPE_MASK_OBJECT)) {
return 0;
}
/* __proto__ setter returns 'undefined' on success unlike the
* setPrototypeOf() call which returns the target object.
*/
ret_success = 0;
} else {
duk_require_object_coercible(ctx, 0);
duk_require_type_mask(ctx, 1, DUK_TYPE_MASK_NULL | DUK_TYPE_MASK_OBJECT);
}
h_obj = duk_get_hobject(ctx, 0);
if (!h_obj) {
goto skip;
}
h_new_proto = duk_get_hobject(ctx, 1);
DUK_ASSERT(h_obj != NULL);
/* h_new_proto may be NULL */
/* [[SetPrototypeOf]] standard behavior, E6 9.1.2 */
/* NOTE: steps 7-8 seem to be a cut-paste bug in the E6 draft */
/* TODO: implement Proxy object support here */
if (h_new_proto == h_obj->prototype) {
goto skip;
}
if (!DUK_HOBJECT_HAS_EXTENSIBLE(h_obj)) {
goto fail_nonextensible;
}
for (h_curr = h_new_proto; h_curr != NULL; h_curr = h_curr->prototype) {
/* Loop prevention */
if (h_curr == h_obj) {
goto fail_loop;
}
}
DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr, h_obj, h_new_proto);
/* fall thru */
skip:
duk_set_top(ctx, 1);
return ret_success;
fail_nonextensible:
fail_loop:
return DUK_RET_TYPE_ERROR;
}
void *
es_get_native_obj(duk_context *ctx, int obj_idx, es_native_type_t wanted_type)
{
duk_get_finalizer(ctx, obj_idx);
if(!duk_is_function(ctx, -1)) {
duk_error(ctx, DUK_ERR_ERROR, "Object is not of type %s (no finalizer)",
native_type_to_str(wanted_type));
}
es_native_type_t current_type = duk_get_magic(ctx, -1);
duk_pop(ctx);
if(current_type != wanted_type)
duk_error(ctx, DUK_ERR_ERROR, "Object is %s, expected %s",
native_type_to_str(current_type),
native_type_to_str(wanted_type));
duk_get_prop_string(ctx, obj_idx, PTRNAME);
if(!duk_is_pointer(ctx, -1))
duk_error(ctx, DUK_ERR_ERROR, "Object missing ptr");
void *r = duk_get_pointer(ctx, -1);
duk_pop(ctx);
return r;
}
/* Shared helper to implement Object.getPrototypeOf and the ES6
* Object.prototype.__proto__ getter.
*
* https://people.mozilla.org/~jorendorff/es6-draft.html#sec-get-object.prototype.__proto__
*/
duk_ret_t duk_bi_object_getprototype_shared(duk_context *ctx) {
duk_hobject *h;
/* magic: 0=getter call, 1=Object.getPrototypeOf */
if (duk_get_magic(ctx) == 0) {
duk_push_this_coercible_to_object(ctx);
duk_insert(ctx, 0);
}
h = duk_require_hobject(ctx, 0);
DUK_ASSERT(h != NULL);
/* XXX: should the API call handle this directly, i.e. attempt
* to duk_push_hobject(ctx, null) would push a null instead?
* (On the other hand 'undefined' would be just as logical, but
* not wanted here.)
*/
if (h->prototype) {
duk_push_hobject(ctx, h->prototype);
} else {
duk_push_null(ctx);
}
return 1;
}
/* Shared helper to provide toString() and valueOf(). Checks 'this', gets
* the primitive value to stack top, and optionally coerces with ToString().
*/
duk_ret_t duk_bi_boolean_prototype_tostring_shared(duk_context *ctx) {
duk_tval *tv;
duk_hobject *h;
duk_small_int_t coerce_tostring = duk_get_magic(ctx);
/* FIXME: there is room to use a shared helper here, many built-ins
* check the 'this' type, and if it's an object, check its class,
* then get its internal value, etc.
*/
duk_push_this(ctx);
tv = duk_get_tval(ctx, -1);
DUK_ASSERT(tv != NULL);
if (DUK_TVAL_IS_BOOLEAN(tv)) {
goto type_ok;
} else if (DUK_TVAL_IS_OBJECT(tv)) {
h = DUK_TVAL_GET_OBJECT(tv);
DUK_ASSERT(h != NULL);
if (DUK_HOBJECT_GET_CLASS_NUMBER(h) == DUK_HOBJECT_CLASS_BOOLEAN) {
duk_get_prop_stridx(ctx, -1, DUK_STRIDX_INT_VALUE);
DUK_ASSERT(duk_is_boolean(ctx, -1));
goto type_ok;
}
}
return DUK_RET_TYPE_ERROR;
type_ok:
if (coerce_tostring) {
duk_to_string(ctx, -1);
}
return 1;
}
duk_ret_t duk_bi_string_prototype_caseconv_shared(duk_context *ctx) {
duk_hthread *thr = (duk_hthread *) ctx;
duk_small_int_t uppercase = duk_get_magic(ctx);
(void) duk_push_this_coercible_to_string(ctx);
duk_unicode_case_convert_string(thr, uppercase);
return 1;
}
int duk_builtin_math_object_twoarg_shared(duk_context *ctx) {
int fun_idx = duk_get_magic(ctx);
two_arg_func fun;
DUK_ASSERT(fun_idx >= 0 && fun_idx < sizeof(two_arg_funcs) / sizeof(two_arg_func));
fun = two_arg_funcs[fun_idx];
duk_push_number(ctx, fun(duk_to_number(ctx, 0), duk_to_number(ctx, 1)));
return 1;
}
duk_ret_t duk_bi_math_object_twoarg_shared(duk_context *ctx) {
duk_small_int_t fun_idx = duk_get_magic(ctx);
duk__two_arg_func fun;
DUK_ASSERT(fun_idx >= 0);
DUK_ASSERT(fun_idx < (duk_small_int_t) (sizeof(duk__two_arg_funcs) / sizeof(duk__two_arg_func)));
fun = duk__two_arg_funcs[fun_idx];
/* FIXME: double typing here: double or duk_double_t? */
duk_push_number(ctx, fun((double) duk_to_number(ctx, 0), (double) duk_to_number(ctx, 1)));
return 1;
}
duk_ret_t duk_bi_object_constructor_is_sealed_frozen_shared(duk_context *ctx) {
duk_hobject *h;
int is_frozen;
int rc;
h = duk_require_hobject(ctx, 0);
DUK_ASSERT(h != NULL);
is_frozen = duk_get_magic(ctx);
rc = duk_hobject_object_is_sealed_frozen_helper(h, is_frozen /*is_frozen*/);
duk_push_boolean(ctx ,rc);
return 1;
}
duk_ret_t duk_bi_object_constructor_seal_freeze_shared(duk_context *ctx) {
duk_hthread *thr = (duk_hthread *) ctx;
duk_hobject *h;
int is_freeze;
h = duk_require_hobject(ctx, 0);
DUK_ASSERT(h != NULL);
is_freeze = duk_get_magic(ctx);
duk_hobject_object_seal_freeze_helper(thr, h, is_freeze /*freeze*/);
/* Sealed and frozen objects cannot gain any more properties,
* so this is a good time to compact them.
*/
duk_hobject_compact_props(thr, h);
return 1;
}
int duk_bi_error_constructor_shared(duk_context *ctx) {
/* Behavior for constructor and non-constructor call is
* the same except for augmenting the created error. When
* called as a constructor, the caller (duk_new()) will handle
* augmentation; when called as normal function, we need to do
* it here.
*/
duk_hthread *thr = (duk_hthread *) ctx;
int bidx_prototype = duk_get_magic(ctx);
/* same for both error and each subclass like TypeError */
int flags_and_class = DUK_HOBJECT_FLAG_EXTENSIBLE |
DUK_HOBJECT_CLASS_AS_FLAGS(DUK_HOBJECT_CLASS_ERROR);
DUK_UNREF(thr);
duk_push_object_helper(ctx, flags_and_class, bidx_prototype);
/* If message is undefined, the own property 'message' is not set at
* all to save property space. An empty message is inherited anyway.
*/
if (!duk_is_undefined(ctx, 0)) {
duk_to_string(ctx, 0);
duk_dup(ctx, 0); /* [ message error message ] */
duk_def_prop_stridx(ctx, -2, DUK_STRIDX_MESSAGE, DUK_PROPDESC_FLAGS_WC);
}
/* Augment the error if called as a normal function. __FILE__ and __LINE__
* are not desirable in this case.
*/
#ifdef DUK_USE_AUGMENT_ERROR_CREATE
if (!duk_is_constructor_call(ctx)) {
duk_err_augment_error_create(thr, thr, NULL, 0, 1 /*noblame_fileline*/);
}
#endif
return 1;
}
static duk_ret_t test_func(duk_context *ctx, void *udata) {
(void) udata;
if (ctx) {
printf("dummy - return here\n"); fflush(stdout);
return 0;
}
/* Up-to-date for Duktape 1.3.0, alphabetical order:
* $ cd website/api; ls *.yaml
*/
(void) duk_alloc_raw(ctx, 0);
(void) duk_alloc(ctx, 0);
(void) duk_base64_decode(ctx, 0);
(void) duk_base64_encode(ctx, 0);
(void) duk_buffer_to_string(ctx, 0);
(void) duk_call_method(ctx, 0);
(void) duk_call_prop(ctx, 0, 0);
(void) duk_call(ctx, 0);
(void) duk_char_code_at(ctx, 0, 0);
(void) duk_check_stack_top(ctx, 0);
(void) duk_check_stack(ctx, 0);
(void) duk_check_type_mask(ctx, 0, 0);
(void) duk_check_type(ctx, 0, 0);
(void) duk_compact(ctx, 0);
(void) duk_compile_lstring_filename(ctx, 0, "dummy", 0);
(void) duk_compile_lstring(ctx, 0, "dummy", 0);
(void) duk_compile_string_filename(ctx, 0, "dummy");
(void) duk_compile_string(ctx, 0, "dummy");
(void) duk_compile(ctx, 0);
(void) duk_concat(ctx, 0);
(void) duk_config_buffer(ctx, 0, NULL, 0);
(void) duk_copy(ctx, 0, 0);
(void) duk_create_heap_default();
(void) duk_create_heap(NULL, NULL, NULL, NULL, NULL);
(void) duk_debugger_attach(ctx, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
(void) duk_debugger_cooperate(ctx);
(void) duk_debugger_detach(ctx);
(void) duk_debugger_notify(ctx, 0);
(void) duk_debugger_pause(ctx);
(void) duk_decode_string(ctx, 0, NULL, NULL);
(void) duk_def_prop(ctx, 0, 0);
(void) duk_del_prop_index(ctx, 0, 0);
(void) duk_del_prop_string(ctx, 0, "dummy");
(void) duk_del_prop(ctx, 0);
(void) duk_destroy_heap(ctx);
(void) duk_dump_function(ctx);
(void) duk_dup_top(ctx);
(void) duk_dup(ctx, 0);
(void) duk_enum(ctx, 0, 0);
(void) duk_equals(ctx, 0, 0);
duk_error_va(ctx, 0, NULL, NULL);
duk_error(ctx, 0, "dummy"); /* (void) cast won't work without variadic macros */
(void) duk_eval_lstring_noresult(ctx, "dummy", 0);
(void) duk_eval_lstring(ctx, "dummy", 0);
(void) duk_eval_noresult(ctx);
(void) duk_eval_string_noresult(ctx, "dummy");
(void) duk_eval_string(ctx, "dummy");
(void) duk_eval(ctx);
(void) duk_fatal(ctx, "dummy");
(void) duk_free_raw(ctx, NULL);
(void) duk_free(ctx, NULL);
(void) duk_gc(ctx, 0);
(void) duk_get_boolean(ctx, 0);
(void) duk_get_buffer_data(ctx, 0, NULL);
(void) duk_get_buffer(ctx, 0, NULL);
(void) duk_get_c_function(ctx, 0);
(void) duk_get_context(ctx, 0);
(void) duk_get_current_magic(ctx);
(void) duk_get_error_code(ctx, 0);
(void) duk_get_finalizer(ctx, 0);
(void) duk_get_global_string(ctx, 0);
(void) duk_get_heapptr(ctx, 0);
(void) duk_get_int(ctx, 0);
(void) duk_get_length(ctx, 0);
(void) duk_get_lstring(ctx, 0, NULL);
(void) duk_get_magic(ctx, 0);
(void) duk_get_memory_functions(ctx, NULL);
(void) duk_get_number(ctx, 0);
(void) duk_get_pointer(ctx, 0);
(void) duk_get_prop_index(ctx, 0, 0);
(void) duk_get_prop_string(ctx, 0, "dummy");
(void) duk_get_prop(ctx, 0);
(void) duk_get_prototype(ctx, 0);
(void) duk_get_string(ctx, 0);
(void) duk_get_top_index(ctx);
(void) duk_get_top(ctx);
(void) duk_get_type_mask(ctx, 0);
(void) duk_get_type(ctx, 0);
(void) duk_get_uint(ctx, 0);
(void) duk_has_prop_index(ctx, 0, 0);
(void) duk_has_prop_string(ctx, 0, "dummy");
(void) duk_has_prop(ctx, 0);
(void) duk_hex_decode(ctx, 0);
(void) duk_hex_encode(ctx, 0);
(void) duk_insert(ctx, 0);
(void) duk_instanceof(ctx, 0, 0);
(void) duk_is_array(ctx, 0);
(void) duk_is_boolean(ctx, 0);
(void) duk_is_bound_function(ctx, 0);
(void) duk_is_buffer(ctx, 0);
(void) duk_is_callable(ctx, 0);
(void) duk_is_c_function(ctx, 0);
(void) duk_is_constructor_call(ctx);
(void) duk_is_dynamic_buffer(ctx, 0);
(void) duk_is_ecmascript_function(ctx, 0);
(void) duk_is_error(ctx, 0);
(void) duk_is_eval_error(ctx, 0);
(void) duk_is_fixed_buffer(ctx, 0);
(void) duk_is_function(ctx, 0);
(void) duk_is_lightfunc(ctx, 0);
(void) duk_is_nan(ctx, 0);
(void) duk_is_null_or_undefined(ctx, 0);
(void) duk_is_null(ctx, 0);
(void) duk_is_number(ctx, 0);
(void) duk_is_object_coercible(ctx, 0);
(void) duk_is_object(ctx, 0);
(void) duk_is_pointer(ctx, 0);
(void) duk_is_primitive(ctx, 0);
(void) duk_is_range_error(ctx, 0);
(void) duk_is_reference_error(ctx, 0);
(void) duk_is_strict_call(ctx);
(void) duk_is_string(ctx, 0);
(void) duk_is_syntax_error(ctx, 0);
(void) duk_is_thread(ctx, 0);
(void) duk_is_type_error(ctx, 0);
(void) duk_is_undefined(ctx, 0);
(void) duk_is_uri_error(ctx, 0);
(void) duk_is_valid_index(ctx, 0);
(void) duk_join(ctx, 0);
(void) duk_json_decode(ctx, 0);
(void) duk_json_encode(ctx, 0);
(void) duk_load_function(ctx);
(void) duk_map_string(ctx, 0, NULL, NULL);
(void) duk_new(ctx, 0);
(void) duk_next(ctx, 0, 0);
(void) duk_normalize_index(ctx, 0);
(void) duk_pcall_method(ctx, 0);
(void) duk_pcall_prop(ctx, 0, 0);
(void) duk_pcall(ctx, 0);
(void) duk_pcompile_lstring_filename(ctx, 0, "dummy", 0);
(void) duk_pcompile_lstring(ctx, 0, "dummy", 0);
(void) duk_pcompile_string_filename(ctx, 0, "dummy");
(void) duk_pcompile_string(ctx, 0, "dummy");
(void) duk_pcompile(ctx, 0);
(void) duk_peval_lstring_noresult(ctx, "dummy", 0);
(void) duk_peval_lstring(ctx, "dummy", 0);
(void) duk_peval_noresult(ctx);
(void) duk_peval_string_noresult(ctx, "dummy");
(void) duk_peval_string(ctx, "dummy");
(void) duk_peval(ctx);
(void) duk_pnew(ctx, 0);
(void) duk_pop_2(ctx);
(void) duk_pop_3(ctx);
(void) duk_pop_n(ctx, 0);
(void) duk_pop(ctx);
(void) duk_push_array(ctx);
(void) duk_push_boolean(ctx, 0);
(void) duk_push_buffer_object(ctx, 0, 0, 0, 0);
(void) duk_push_buffer(ctx, 0, 0);
(void) duk_push_c_function(ctx, NULL, 0);
(void) duk_push_c_lightfunc(ctx, NULL, 0, 0, 0);
(void) duk_push_context_dump(ctx);
(void) duk_push_current_function(ctx);
(void) duk_push_current_thread(ctx);
(void) duk_push_dynamic_buffer(ctx, 0);
(void) duk_push_error_object_va(ctx, 0, NULL, NULL);
(void) duk_push_error_object(ctx, 0, "dummy");
(void) duk_push_external_buffer(ctx);
(void) duk_push_false(ctx);
(void) duk_push_fixed_buffer(ctx, 0);
(void) duk_push_global_object(ctx);
(void) duk_push_global_stash(ctx);
(void) duk_push_heap_stash(ctx);
(void) duk_push_heapptr(ctx, NULL);
(void) duk_push_int(ctx, 0);
(void) duk_push_lstring(ctx, "dummy", 0);
(void) duk_push_nan(ctx);
(void) duk_push_null(ctx);
(void) duk_push_number(ctx, 0.0);
(void) duk_push_object(ctx);
(void) duk_push_pointer(ctx, NULL);
(void) duk_push_sprintf(ctx, "dummy");
(void) duk_push_string(ctx, "dummy");
(void) duk_push_this(ctx);
(void) duk_push_thread_new_globalenv(ctx);
(void) duk_push_thread_stash(ctx, NULL);
(void) duk_push_thread(ctx);
(void) duk_push_true(ctx);
(void) duk_push_uint(ctx, 0);
(void) duk_push_undefined(ctx);
(void) duk_push_vsprintf(ctx, "dummy", NULL);
(void) duk_put_function_list(ctx, 0, NULL);
(void) duk_put_global_string(ctx, NULL);
(void) duk_put_number_list(ctx, 0, NULL);
(void) duk_put_prop_index(ctx, 0, 0);
(void) duk_put_prop_string(ctx, 0, "dummy");
(void) duk_put_prop(ctx, 0);
(void) duk_realloc_raw(ctx, NULL, 0);
(void) duk_realloc(ctx, NULL, 0);
(void) duk_remove(ctx, 0);
(void) duk_replace(ctx, 0);
(void) duk_require_boolean(ctx, 0);
(void) duk_require_buffer_data(ctx, 0, NULL);
(void) duk_require_buffer(ctx, 0, NULL);
(void) duk_require_c_function(ctx, 0);
(void) duk_require_callable(ctx, 0);
(void) duk_require_context(ctx, 0);
(void) duk_require_function(ctx, 0);
(void) duk_require_heapptr(ctx, 0);
(void) duk_require_int(ctx, 0);
(void) duk_require_lstring(ctx, 0, NULL);
(void) duk_require_normalize_index(ctx, 0);
(void) duk_require_null(ctx, 0);
(void) duk_require_number(ctx, 0);
(void) duk_require_object_coercible(ctx, 0);
(void) duk_require_pointer(ctx, 0);
(void) duk_require_stack_top(ctx, 0);
(void) duk_require_stack(ctx, 0);
(void) duk_require_string(ctx, 0);
(void) duk_require_top_index(ctx);
(void) duk_require_type_mask(ctx, 0, 0);
(void) duk_require_uint(ctx, 0);
(void) duk_require_undefined(ctx, 0);
(void) duk_require_valid_index(ctx, 0);
(void) duk_resize_buffer(ctx, 0, 0);
(void) duk_safe_call(ctx, NULL, NULL, 0, 0);
(void) duk_safe_to_lstring(ctx, 0, NULL);
(void) duk_safe_to_string(ctx, 0);
(void) duk_set_finalizer(ctx, 0);
(void) duk_set_global_object(ctx);
(void) duk_set_magic(ctx, 0, 0);
(void) duk_set_prototype(ctx, 0);
(void) duk_set_top(ctx, 0);
(void) duk_steal_buffer(ctx, 0, NULL);
(void) duk_strict_equals(ctx, 0, 0);
(void) duk_substring(ctx, 0, 0, 0);
(void) duk_swap_top(ctx, 0);
(void) duk_swap(ctx, 0, 0);
(void) duk_throw(ctx);
(void) duk_to_boolean(ctx, 0);
(void) duk_to_buffer(ctx, 0, NULL);
(void) duk_to_defaultvalue(ctx, 0, 0);
(void) duk_to_dynamic_buffer(ctx, 0, NULL);
(void) duk_to_fixed_buffer(ctx, 0, NULL);
(void) duk_to_int32(ctx, 0);
(void) duk_to_int(ctx, 0);
(void) duk_to_lstring(ctx, 0, NULL);
(void) duk_to_null(ctx, 0);
(void) duk_to_number(ctx, 0);
(void) duk_to_object(ctx, 0);
(void) duk_to_pointer(ctx, 0);
(void) duk_to_primitive(ctx, 0, 0);
(void) duk_to_string(ctx, 0);
(void) duk_to_uint16(ctx, 0);
(void) duk_to_uint32(ctx, 0);
(void) duk_to_uint(ctx, 0);
(void) duk_to_undefined(ctx, 0);
(void) duk_trim(ctx, 0);
(void) duk_xcopy_top(ctx, NULL, 0);
(void) duk_xmove_top(ctx, NULL, 0);
printf("never here\n"); fflush(stdout);
return 0;
}
/* Shared helper for Object.getOwnPropertyNames() and Object.keys().
* Magic: 0=getOwnPropertyNames, 1=Object.keys.
*/
duk_ret_t duk_bi_object_constructor_keys_shared(duk_context *ctx) {
duk_hthread *thr = (duk_hthread *) ctx;
duk_hobject *obj;
#if defined(DUK_USE_ES6_PROXY)
duk_hobject *h_proxy_target;
duk_hobject *h_proxy_handler;
duk_hobject *h_trap_result;
duk_uint32_t i, len, idx;
#endif
duk_small_int_t enum_flags;
DUK_ASSERT_TOP(ctx, 1);
obj = duk_require_hobject(ctx, 0);
DUK_ASSERT(obj != NULL);
DUK_UNREF(obj);
#if defined(DUK_USE_ES6_PROXY)
if (DUK_LIKELY(!duk_hobject_proxy_check(thr,
obj,
&h_proxy_target,
&h_proxy_handler))) {
goto skip_proxy;
}
duk_push_hobject(ctx, h_proxy_handler);
if (!duk_get_prop_stridx(ctx, -1, DUK_STRIDX_OWN_KEYS)) {
/* Careful with reachability here: don't pop 'obj' before pushing
* proxy target.
*/
DUK_DDD(DUK_DDDPRINT("no ownKeys trap, get keys of target instead"));
duk_pop_2(ctx);
duk_push_hobject(ctx, h_proxy_target);
duk_replace(ctx, 0);
DUK_ASSERT_TOP(ctx, 1);
goto skip_proxy;
}
/* [ obj handler trap ] */
duk_insert(ctx, -2);
duk_push_hobject(ctx, h_proxy_target); /* -> [ obj trap handler target ] */
duk_call_method(ctx, 1 /*nargs*/); /* -> [ obj trap_result ] */
h_trap_result = duk_require_hobject(ctx, -1);
DUK_UNREF(h_trap_result);
len = (duk_uint32_t) duk_get_length(ctx, -1);
idx = 0;
duk_push_array(ctx);
for (i = 0; i < len; i++) {
/* [ obj trap_result res_arr ] */
if (duk_get_prop_index(ctx, -2, i) && duk_is_string(ctx, -1)) {
/* XXX: for Object.keys() we should check enumerability of key */
/* [ obj trap_result res_arr propname ] */
duk_put_prop_index(ctx, -2, idx);
idx++;
} else {
duk_pop(ctx);
}
}
/* XXX: for Object.keys() the [[OwnPropertyKeys]] result (trap result)
* should be filtered so that only enumerable keys remain. Enumerability
* should be checked with [[GetOwnProperty]] on the original object
* (i.e., the proxy in this case). If the proxy has a getOwnPropertyDescriptor
* trap, it should be triggered for every property. If the proxy doesn't have
* the trap, enumerability should be checked against the target object instead.
* We don't do any of this now, so Object.keys() and Object.getOwnPropertyNames()
* return the same result now for proxy traps. We still do clean up the trap
* result, so that Object.keys() and Object.getOwnPropertyNames() will return a
* clean array of strings without gaps.
*/
return 1;
skip_proxy:
#endif /* DUK_USE_ES6_PROXY */
DUK_ASSERT_TOP(ctx, 1);
if (duk_get_magic(ctx)) {
/* Object.keys */
enum_flags = DUK_ENUM_OWN_PROPERTIES_ONLY |
DUK_ENUM_NO_PROXY_BEHAVIOR;
} else {
/* Object.getOwnPropertyNames */
enum_flags = DUK_ENUM_INCLUDE_NONENUMERABLE |
DUK_ENUM_OWN_PROPERTIES_ONLY |
DUK_ENUM_NO_PROXY_BEHAVIOR;
}
return duk_hobject_get_enumerated_keys(ctx, enum_flags);
}
duk_ret_t duk_bi_string_prototype_indexof_shared(duk_context *ctx) {
duk_hthread *thr = (duk_hthread *) ctx;
duk_hstring *h_this;
duk_hstring *h_search;
duk_int_t clen_this;
duk_int_t cpos;
duk_int_t bpos;
duk_uint8_t *p_start, *p_end, *p;
duk_uint8_t *q_start;
duk_size_t q_blen; /* FIXME: type inconsistency (clen_this is duk_int_t) */
duk_uint8_t firstbyte;
duk_uint8_t t;
duk_small_int_t is_lastindexof = duk_get_magic(ctx); /* 0=indexOf, 1=lastIndexOf */
h_this = duk_push_this_coercible_to_string(ctx);
DUK_ASSERT(h_this != NULL);
clen_this = (duk_int_t) DUK_HSTRING_GET_CHARLEN(h_this);
h_search = duk_to_hstring(ctx, 0);
DUK_ASSERT(h_search != NULL);
q_start = DUK_HSTRING_GET_DATA(h_search);
q_blen = (size_t) DUK_HSTRING_GET_BYTELEN(h_search);
duk_to_number(ctx, 1);
if (duk_is_nan(ctx, 1) && is_lastindexof) {
/* indexOf: NaN should cause pos to be zero.
* lastIndexOf: NaN should cause pos to be +Infinity
* (and later be clamped to len).
*/
cpos = clen_this;
} else {
cpos = duk_to_int_clamped(ctx, 1, 0, clen_this);
}
/* Empty searchstring always matches; cpos must be clamped here. */
if (q_blen == 0) {
duk_push_int(ctx, cpos);
return 1;
}
bpos = (duk_int_t) duk_heap_strcache_offset_char2byte(thr, h_this, (duk_uint32_t) cpos);
p_start = DUK_HSTRING_GET_DATA(h_this);
p_end = p_start + DUK_HSTRING_GET_BYTELEN(h_this);
p = p_start + bpos;
/* This loop is optimized for size. For speed, there should be
* two separate loops, and we should ensure that memcmp() can be
* used without an extra "will searchstring fit" check. Doing
* the preconditioning for 'p' and 'p_end' is easy but cpos
* must be updated if 'p' is wound back (backward scanning).
*/
firstbyte = q_start[0]; /* leading byte of match string */
while (p <= p_end && p >= p_start) {
t = *p;
/* For Ecmascript strings, this check can only match for
* initial UTF-8 bytes (not continuation bytes). For other
* strings all bets are off.
*/
if ((t == firstbyte) && ((duk_size_t) (p_end - p) >= q_blen)) {
DUK_ASSERT(q_blen > 0); /* no issues with memcmp() zero size, even if broken */
if (DUK_MEMCMP(p, q_start, q_blen) == 0) {
duk_push_int(ctx, cpos);
return 1;
}
}
/* track cpos while scanning */
if (is_lastindexof) {
/* when going backwards, we decrement cpos 'early';
* 'p' may point to a continuation byte of the char
* at offset 'cpos', but that's OK because we'll
* backtrack all the way to the initial byte.
*/
if ((t & 0xc0) != 0x80) {
cpos--;
}
p--;
} else {
if ((t & 0xc0) != 0x80) {
cpos++;
}
p++;
}
}
/* Not found. Empty string case is handled specially above. */
duk_push_int(ctx, -1);
return 1;
}
int duk_builtin_date_prototype_set_shared(duk_context *ctx) {
int flags_and_maxnargs = duk_get_magic(ctx);
return set_part_helper(ctx, flags_and_maxnargs);
}
int duk_builtin_date_prototype_get_shared(duk_context *ctx) {
int flags_and_idx = duk_get_magic(ctx);
return get_part_helper(ctx, flags_and_idx);
}
int duk_builtin_date_prototype_tostring_shared(duk_context *ctx) {
int flags = duk_get_magic(ctx);
return to_string_helper(ctx, flags);
}
int duk_bi_array_prototype_indexof_shared(duk_context *ctx) {
/* FIXME: types, ensure loop below works when fixed (i must be able to go negative right now) */
int nargs;
int i, len;
int fromIndex;
int idx_step = duk_get_magic(ctx); /* idx_step is +1 for indexOf, -1 for lastIndexOf */
/* lastIndexOf() needs to be a vararg function because we must distinguish
* between an undefined fromIndex and a "not given" fromIndex; indexOf() is
* made vararg for symmetry although it doesn't strictly need to be.
*/
nargs = duk_get_top(ctx);
duk_set_top(ctx, 2);
len = duk__push_this_obj_len_u32(ctx);
if (len == 0) {
goto not_found;
}
/* Index clamping is a bit tricky, we must ensure that we'll only iterate
* through elements that exist and that the specific requirements from E5.1
* Sections 15.4.4.14 and 15.4.4.15 are fulfilled; especially:
*
* - indexOf: clamp to [-len,len], negative handling -> [0,len],
* if clamped result is len, for-loop bails out immediately
*
* - lastIndexOf: clamp to [-len-1, len-1], negative handling -> [-1, len-1],
* if clamped result is -1, for-loop bails out immediately
*
* If fromIndex is not given, ToInteger(undefined) = 0, which is correct
* for indexOf() but incorrect for lastIndexOf(). Hence special handling,
* and why lastIndexOf() needs to be a vararg function.
*/
if (nargs >= 2) {
/* indexOf: clamp fromIndex to [-len, len]
* (if fromIndex == len, for-loop terminates directly)
*
* lastIndexOf: clamp fromIndex to [-len - 1, len - 1]
* (if clamped to -len-1 -> fromIndex becomes -1, terminates for-loop directly)
*/
fromIndex = duk_to_int_clamped(ctx,
1,
(idx_step > 0 ? -len : -len - 1),
(idx_step > 0 ? len : len - 1));
if (fromIndex < 0) {
/* for lastIndexOf, result may be -1 (mark immediate termination) */
fromIndex = len + fromIndex;
}
} else {
/* for indexOf, ToInteger(undefined) would be 0, i.e. correct, but
* handle both indexOf and lastIndexOf specially here.
*/
if (idx_step > 0) {
fromIndex = 0;
} else {
fromIndex = len - 1;
}
}
/* stack[0] = searchElement
* stack[1] = fromIndex
* stack[2] = object
* stack[3] = length (not needed, but not popped above)
*/
for (i = fromIndex;
i >= 0 && i < len;
i += idx_step) {
DUK_ASSERT_TOP(ctx, 4);
if (duk_get_prop_index(ctx, 2, i)) {
DUK_ASSERT_TOP(ctx, 5);
if (duk_strict_equals(ctx, 0, 4)) {
duk_push_int(ctx, i);
return 1;
}
}
duk_pop(ctx);
}
not_found:
duk_push_int(ctx, -1);
return 1;
}
int duk_bi_array_prototype_iter_shared(duk_context *ctx) {
int len;
int i;
int k;
int bval;
int iter_type = duk_get_magic(ctx);
duk_uint32_t res_length = 0;
/* each call this helper serves has nargs==2 */
DUK_ASSERT_TOP(ctx, 2);
len = duk__push_this_obj_len_u32(ctx);
if (!duk_is_callable(ctx, 0)) {
goto type_error;
}
/* if thisArg not supplied, behave as if undefined was supplied */
if (iter_type == DUK__ITER_MAP || iter_type == DUK__ITER_FILTER) {
duk_push_array(ctx);
} else {
duk_push_undefined(ctx);
}
/* stack[0] = callback
* stack[1] = thisArg
* stack[2] = object
* stack[3] = ToUint32(length) (unused, but avoid unnecessary pop)
* stack[4] = result array (or undefined)
*/
k = 0; /* result index for filter() */
for (i = 0; i < len; i++) {
DUK_ASSERT_TOP(ctx, 5);
if (!duk_get_prop_index(ctx, 2, i)) {
duk_pop(ctx);
continue;
}
/* The original value needs to be preserved for filter(), hence
* this funny order. We can't re-get the value because of side
* effects.
*/
duk_dup(ctx, 0);
duk_dup(ctx, 1);
duk_dup(ctx, -3);
duk_push_int(ctx, i);
duk_dup(ctx, 2); /* [ ... val callback thisArg val i obj ] */
duk_call_method(ctx, 3); /* -> [ ... val retval ] */
switch (iter_type) {
case DUK__ITER_EVERY:
bval = duk_to_boolean(ctx, -1);
if (!bval) {
/* stack top contains 'false' */
return 1;
}
break;
case DUK__ITER_SOME:
bval = duk_to_boolean(ctx, -1);
if (bval) {
/* stack top contains 'true' */
return 1;
}
break;
case DUK__ITER_FOREACH:
/* nop */
break;
case DUK__ITER_MAP:
duk_dup(ctx, -1);
duk_def_prop_index(ctx, 4, i, DUK_PROPDESC_FLAGS_WEC); /* retval to result[i] */
res_length = i + 1;
break;
case DUK__ITER_FILTER:
bval = duk_to_boolean(ctx, -1);
if (bval) {
duk_dup(ctx, -2); /* orig value */
duk_def_prop_index(ctx, 4, k, DUK_PROPDESC_FLAGS_WEC);
k++;
res_length = k;
}
break;
default:
DUK_UNREACHABLE();
break;
}
duk_pop_2(ctx);
DUK_ASSERT_TOP(ctx, 5);
}
switch (iter_type) {
case DUK__ITER_EVERY:
duk_push_true(ctx);
break;
case DUK__ITER_SOME:
duk_push_false(ctx);
break;
case DUK__ITER_FOREACH:
duk_push_undefined(ctx);
break;
case DUK__ITER_MAP:
case DUK__ITER_FILTER:
DUK_ASSERT_TOP(ctx, 5);
DUK_ASSERT(duk_is_array(ctx, -1)); /* topmost element is the result array already */
duk_push_number(ctx, (double) res_length); /* FIXME */
duk_def_prop_stridx(ctx, -2, DUK_STRIDX_LENGTH, DUK_PROPDESC_FLAGS_W);
break;
default:
DUK_UNREACHABLE();
break;
}
return 1;
type_error:
return DUK_RET_TYPE_ERROR;
}
//duk_int_t duk_get_magic(duk_context *ctx, duk_idx_t index);
duk_int_t aperl_duk_get_magic(duk_context *ctx, duk_idx_t index) {
duk_int_t ret = duk_get_magic(ctx, index);
return ret;
}
int duk_bi_array_prototype_reduce_shared(duk_context *ctx) {
int nargs;
int have_acc;
int i, len;
int idx_step = duk_get_magic(ctx); /* idx_step is +1 for reduce, -1 for reduceRight */
/* We're a varargs function because we need to detect whether
* initialValue was given or not.
*/
nargs = duk_get_top(ctx);
DUK_DDD(DUK_DDDPRINT("nargs=%d", nargs));
duk_set_top(ctx, 2);
len = duk__push_this_obj_len_u32(ctx);
if (!duk_is_callable(ctx, 0)) {
goto type_error;
}
/* stack[0] = callback fn
* stack[1] = initialValue
* stack[2] = object (coerced this)
* stack[3] = length (not needed, but not popped above)
* stack[4] = accumulator
*/
have_acc = 0;
if (nargs >= 2) {
duk_dup(ctx, 1);
have_acc = 1;
}
DUK_DDD(DUK_DDDPRINT("have_acc=%d, acc=%!T", have_acc, duk_get_tval(ctx, 3)));
for (i = (idx_step >= 0 ? 0 : len - 1);
i >= 0 && i < len;
i += idx_step) {
DUK_DDD(DUK_DDDPRINT("i=%d, len=%d, have_acc=%d, top=%d, acc=%!T",
i, len, have_acc, duk_get_top(ctx), duk_get_tval(ctx, 4)));
DUK_ASSERT((have_acc && duk_get_top(ctx) == 5) ||
(!have_acc && duk_get_top(ctx) == 4));
if (!duk_has_prop_index(ctx, 2, i)) {
continue;
}
if (!have_acc) {
DUK_ASSERT_TOP(ctx, 4);
duk_get_prop_index(ctx, 2, i);
have_acc = 1;
DUK_ASSERT_TOP(ctx, 5);
} else {
DUK_ASSERT_TOP(ctx, 5);
duk_dup(ctx, 0);
duk_dup(ctx, 4);
duk_get_prop_index(ctx, 2, i);
duk_push_int(ctx, i); /* FIXME: type */
duk_dup(ctx, 2);
DUK_DDD(DUK_DDDPRINT("calling reduce function: func=%!T, prev=%!T, curr=%!T, idx=%!T, obj=%!T",
duk_get_tval(ctx, -5), duk_get_tval(ctx, -4), duk_get_tval(ctx, -3),
duk_get_tval(ctx, -2), duk_get_tval(ctx, -1)));
duk_call(ctx, 4);
DUK_DDD(DUK_DDDPRINT("-> result: %!T", duk_get_tval(ctx, -1)));
duk_replace(ctx, 4);
DUK_ASSERT_TOP(ctx, 5);
}
}
if (!have_acc) {
goto type_error;
}
DUK_ASSERT_TOP(ctx, 5);
return 1;
type_error:
return DUK_RET_TYPE_ERROR;
}
int duk_bi_array_prototype_join_shared(duk_context *ctx) {
duk_uint32_t len, count;
duk_uint32_t idx;
duk_small_int_t to_locale_string = duk_get_magic(ctx);
duk_int_t valstack_required;
/* For join(), nargs is 1. For toLocaleString(), nargs is 0 and
* setting the top essentially pushes an undefined to the stack,
* thus defaulting to a comma separator.
*/
duk_set_top(ctx, 1);
if (duk_is_undefined(ctx, 0)) {
duk_pop(ctx);
duk_push_hstring_stridx(ctx, DUK_STRIDX_COMMA);
} else {
duk_to_string(ctx, 0);
}
len = duk__push_this_obj_len_u32(ctx);
/* [ sep ToObject(this) len ] */
DUK_DDD(DUK_DDDPRINT("sep=%!T, this=%!T, len=%d",
duk_get_tval(ctx, 0), duk_get_tval(ctx, 1), (int) len));
valstack_required = (len >= DUK__ARRAY_MID_JOIN_LIMIT ?
DUK__ARRAY_MID_JOIN_LIMIT : len);
valstack_required++;
duk_require_stack(ctx, valstack_required);
duk_dup(ctx, 0);
/* [ sep ToObject(this) len sep ] */
count = 0;
idx = 0;
for (;;) {
if (count >= DUK__ARRAY_MID_JOIN_LIMIT || /* intermediate join to avoid valstack overflow */
idx >= len) { /* end of loop (careful with len==0) */
/* [ sep ToObject(this) len sep str0 ... str(count-1) ] */
DUK_DDD(DUK_DDDPRINT("mid/final join, count=%d, idx=%d, len=%d",
(int) count, (int) idx, (int) len));
duk_join(ctx, count); /* -> [ sep ToObject(this) len str ] */
duk_dup(ctx, 0); /* -> [ sep ToObject(this) len str sep ] */
duk_insert(ctx, -2); /* -> [ sep ToObject(this) len sep str ] */
count = 1;
}
if (idx >= len) {
/* if true, the stack already contains the final result */
break;
}
duk_get_prop_index(ctx, 1, idx);
if (duk_is_null_or_undefined(ctx, -1)) {
duk_pop(ctx);
duk_push_hstring_stridx(ctx, DUK_STRIDX_EMPTY_STRING);
} else {
if (to_locale_string) {
duk_to_object(ctx, -1);
duk_get_prop_stridx(ctx, -1, DUK_STRIDX_TO_LOCALE_STRING);
duk_insert(ctx, -2); /* -> [ ... toLocaleString ToObject(val) ] */
duk_call_method(ctx, 0);
duk_to_string(ctx, -1);
} else {
duk_to_string(ctx, -1);
}
}
count++;
idx++;
}
/* [ sep ToObject(this) len sep result ] */
return 1;
}
