Add toLocaleString for TypedArrays (#2987)

The algorithm is based on ECMA-262 v6, 22.2.3.27

Co-authored-by: Tibor Dusnoki tdusnoki@inf.u-szeged.hu
JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
This commit is contained in:
Szilagyi Adam
2019-09-13 13:40:56 +02:00
committed by Dániel Bátyai
parent 376cfea47e
commit 6e79bb148e
3 changed files with 235 additions and 0 deletions
@@ -1977,6 +1977,135 @@ ecma_builtin_typedarray_prototype_slice (ecma_value_t this_arg, /**< this argume
return new_typedarray;
} /* ecma_builtin_typedarray_prototype_slice */
/**
* The TypedArray.prototype's 'toLocaleString' single element operation routine.
*
* See also:
* ECMA-262 v6, 22.1.3.26 steps 7-10 and 12.b-e
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_typedarray_prototype_to_locale_string_helper (ecma_object_t *this_obj, /**< TypedArray object */
uint32_t index) /** array index */
{
lit_magic_string_id_t class_id = ecma_object_get_class_name (this_obj);
lit_utf8_byte_t *typedarray_buffer_p = ecma_typedarray_get_buffer (this_obj);
ecma_value_t ret_value = ECMA_VALUE_EMPTY;
ecma_number_t element_num = ecma_get_typedarray_element (typedarray_buffer_p + index, class_id);
ecma_value_t element_value = ecma_make_number_value (element_num);
ecma_value_t element_obj = ecma_op_to_object (element_value);
if (ECMA_IS_VALUE_ERROR (element_obj))
{
ecma_free_value (element_value);
return element_obj;
}
ecma_object_t *element_obj_p = ecma_get_object_from_value (element_obj);
ecma_value_t func_value = ecma_op_object_get_by_magic_id (element_obj_p,
LIT_MAGIC_STRING_TO_LOCALE_STRING_UL);
if (ECMA_IS_VALUE_ERROR (func_value))
{
ecma_free_value (element_value);
ecma_deref_object (element_obj_p);
return func_value;
}
if (ecma_op_is_callable (func_value))
{
ecma_object_t *func_obj = ecma_get_object_from_value (func_value);
ecma_value_t call_value = ecma_op_function_call (func_obj,
element_obj,
NULL,
0);
ecma_deref_object (func_obj);
if (ECMA_IS_VALUE_ERROR (call_value))
{
ecma_free_value (element_value);
ecma_deref_object (element_obj_p);
return call_value;
}
ret_value = ecma_op_to_string (call_value);
}
else
{
ecma_free_value (func_value);
ret_value = ecma_raise_type_error (ECMA_ERR_MSG ("'toLocaleString' is missing or not a function."));
}
ecma_deref_object (element_obj_p);
ecma_free_value (element_value);
return ret_value;
} /* ecma_builtin_typedarray_prototype_to_locale_string_helper */
/**
* The %TypedArray%.prototype object's 'toLocaleString' routine
*
* See also:
* ECMA-262 v6, 22.2.3.27
*
* @return ecma value
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_builtin_typedarray_prototype_to_locale_string (ecma_value_t this_arg) /**< this argument */
{
if (!ecma_is_typedarray (this_arg))
{
return ecma_raise_type_error (ECMA_ERR_MSG ("Argument 'this' is not a TypedArray."));
}
ecma_object_t *typedarray_p = ecma_get_object_from_value (this_arg);
uint32_t length = ecma_typedarray_get_length (typedarray_p);
uint8_t shift = ecma_typedarray_get_element_size_shift (typedarray_p);
uint8_t element_size = (uint8_t) (1 << shift);
uint32_t limit = length * element_size;
if (length == 0)
{
return ecma_make_magic_string_value (LIT_MAGIC_STRING__EMPTY);
}
ecma_value_t first_element = ecma_builtin_typedarray_prototype_to_locale_string_helper (typedarray_p, 0);
if (ECMA_IS_VALUE_ERROR (first_element))
{
return first_element;
}
ecma_string_t *return_string_p = ecma_get_string_from_value (first_element);
for (uint32_t k = element_size; k < limit; k += element_size)
{
return_string_p = ecma_append_magic_string_to_string (return_string_p, LIT_MAGIC_STRING_COMMA_CHAR);
ecma_value_t next_element = ecma_builtin_typedarray_prototype_to_locale_string_helper (typedarray_p, k);
if (ECMA_IS_VALUE_ERROR (next_element))
{
ecma_free_value (first_element);
return next_element;
}
ecma_string_t *next_element_p = ecma_get_string_from_value (next_element);
return_string_p = ecma_concat_ecma_strings (return_string_p, next_element_p);
ecma_deref_ecma_string (next_element_p);
}
ecma_free_value (first_element);
return ecma_make_string_value (return_string_p);
} /* ecma_builtin_typedarray_prototype_to_locale_string */
/**
* @}
* @}
@@ -74,6 +74,7 @@ ROUTINE (LIT_MAGIC_STRING_INDEX_OF_UL, ecma_builtin_typedarray_prototype_index_o
ROUTINE (LIT_MAGIC_STRING_LAST_INDEX_OF_UL, ecma_builtin_typedarray_prototype_last_index_of, NON_FIXED, 1)
ROUTINE (LIT_MAGIC_STRING_COPY_WITHIN, ecma_builtin_typedarray_prototype_copy_within, NON_FIXED, 2)
ROUTINE (LIT_MAGIC_STRING_SLICE, ecma_builtin_typedarray_prototype_slice, NON_FIXED, 2)
ROUTINE (LIT_MAGIC_STRING_TO_LOCALE_STRING_UL, ecma_builtin_typedarray_prototype_to_locale_string, 0, 0)
#if ENABLED (JERRY_ES2015_BUILTIN_ITERATOR)
@@ -0,0 +1,105 @@
// Copyright JS Foundation and other contributors, http://js.foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
var int_typedarrays = [
new Uint8Array([0, 1, 2, 3, 4, 5]),
new Uint16Array([0, 1, 2, 3, 4, 5]),
new Uint32Array([0, 1, 2, 3, 4, 5]),
new Int8Array([0, 1, 2, 3, 4, 5]),
new Int16Array([0, 1, 2, 3, 4, 5]),
new Int32Array([0, 1, 2, 3, 4, 5])
];
var float_typedarrays = [
new Float32Array([0, 1, 2, 3, 4, 5]),
new Float64Array([0, 1, 2, 3, 4, 5]),
];
int_typedarrays.forEach(function(e){
// Test with normal inputs
assert(e.toLocaleString() === "0,1,2,3,4,5");
e.set([3, 3, 6, 1, 2, 9]);
assert(e.toLocaleString() === "3,3,6,1,2,9");
e.set([32, 12, 2, 8, 32, 1]);
assert(e.toLocaleString() === "32,12,2,8,32,1");
// Test with undefined
e.set([12, undefined, 0, undefined, 3, 5]);
assert(e.toLocaleString() === "12,0,0,0,3,5");
// Test with null
e.set([null, 3, 3, 3, null, 10]);
assert(e.toLocaleString() === "0,3,3,3,0,10");
e.set([12, null, 21, null, null, null]);
assert(e.toLocaleString() === "12,0,21,0,0,0");
});
float_typedarrays.forEach(function(e){
// Test with normal inputs
assert(e.toLocaleString() === "0,1,2,3,4,5");
e.set([3, 3, 6, 1, 2, 9]);
assert(e.toLocaleString() === "3,3,6,1,2,9");
e.set([32, 12, 2, 8, 32, 1]);
assert(e.toLocaleString() === "32,12,2,8,32,1");
// Test with undefined
e.set([12, undefined, 0, undefined, 3, 5]);
assert(e.toLocaleString() === "12,NaN,0,NaN,3,5");
// Test with null
e.set([null, 3, 3, 3, null, 10]);
assert(e.toLocaleString() === "0,3,3,3,0,10");
e.set([12, null, 21, null, null, null]);
assert(e.toLocaleString() === "12,0,21,0,0,0");
});
// Test empty TypedArrays
var empty_typedarrays = [
new Uint8Array([]),
new Uint16Array([]),
new Uint32Array([]),
new Float32Array([]),
new Float64Array([]),
new Int8Array([]),
new Int16Array([]),
new Int32Array([])
];
empty_typedarrays.forEach(function(e){
assert(e.toLocaleString() === "");
});
Number.prototype.toLocaleString = function() { return "5" }
var typedarrays = [
new Uint8Array([10]),
new Uint16Array([10]),
new Uint32Array([10]),
new Float32Array([10]),
new Float64Array([10]),
new Int8Array([10]),
new Int16Array([10]),
new Int32Array([10])
];
typedarrays.forEach(function(e){
assert(e.toLocaleString() === "5");
});
Number.prototype.toLocaleString = "foo";
typedarrays.forEach(function(e){
try {
assert(e.toLocaleString() === "foo");
assert(false);
} catch (err) {
assert(err instanceof TypeError);
}
});