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Implement asInteger, asUint32 and asInt32 jerry api methods (#4325)

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JerryScript-DCO-1.0-Signed-off-by: bence gabor kis kisbg@inf.u-szeged.hu
This commit is contained in:
kisbg
2020-11-18 07:37:56 +01:00
committed by GitHub
parent 5d916fb8d4
commit 7de7c2168e
4 changed files with 304 additions and 0 deletions
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docs/02.API-REFERENCE.md
+86
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@@ -3777,6 +3777,92 @@ jerry_value_to_bigint (const jerry_value_t value);
- [jerry_value_is_bigint](#jerry_value_is_bigint)
- [jerry_get_bigint_digits](#jerry_get_bigint_digits)
## jerry_value_as_integer
**Summary**
Convert any number to integer number. Returns 0 if value is not number.
Based on ECMA 262 v11 7.1.5
**Prototype**
```c
double
jerry_value_as_integer (const jerry_value_t value);
```
- `value` - api value
- return
- 0, if value is not a number
- integer representation of the number, otherwise
**Example**
```c
{
jerry_value_t number_val = jerry_create_number (123321);
double number = jerry_value_as_integer (number_val);
jerry_release_value (number_val);
}
```
## jerry_value_as_int32
**Summary**
Convert any number to int32 number. Returns 0 if value is not number.
Based on ECMA 262 v11 7.1.6
**Prototype**
```c
int32_t
jerry_value_as_int32 (const jerry_value_t value);
```
- `value` - api value
- return
- 0, if value is not a number
- int32 representation of the number, otherwise
**Example**
```c
{
jerry_value_t number_val = jerry_create_number (123321);
int32_t number = jerry_value_as_int32 (number_val);
jerry_release_value (number_val);
}
```
## jerry_value_as_uint32
**Summary**
Convert any number to uint32 number. Returns 0 if value is not number.
Based on ECMA 262 v11 7.1.7
**Prototype**
```c
uint32_t
jerry_value_as_uint32 (const jerry_value_t value);
```
- `value` - api value
- return
- 0, if value is not a number
- uint32 representation of the number, otherwise
**Example**
```c
{
jerry_value_t number_val = jerry_create_number (123321);
uint32_t number = jerry_value_as_uint32 (number_val);
jerry_release_value (number_val);
}
```
# Functions for promise objects
jerry-core/api/jerry.c
+78
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@@ -14,6 +14,7 @@
*/
#include <stdio.h>
#include <math.h>
#include "debugger.h"
#include "ecma-alloc.h"
@@ -1722,6 +1723,83 @@ jerry_value_to_bigint (const jerry_value_t value) /**< input value */
#endif /* ENABLED (JERRY_BUILTIN_BIGINT) */
} /* jerry_value_to_bigint */
/**
* Convert any number to integer number.
*
* Note:
* For non-number values 0 is returned.
*
* @return integer representation of the number.
*/
double
jerry_value_as_integer (const jerry_value_t value) /**< input value */
{
jerry_assert_api_available ();
if (!ecma_is_value_number (value))
{
return 0;
}
double number = ecma_get_number_from_value (value);
if (ecma_number_is_nan (number))
{
return ECMA_NUMBER_ZERO;
}
if (ecma_number_is_zero (number) || ecma_number_is_infinity (number))
{
return number;
}
ecma_number_t floor_fabs = (ecma_number_t) floor (fabs (number));
return ecma_number_is_negative (number) ? -floor_fabs : floor_fabs;
} /* jerry_value_as_integer */
/**
* Convert any number to int32 number.
*
* Note:
* For non-number values 0 is returned.
*
* @return int32 representation of the number.
*/
int32_t
jerry_value_as_int32 (const jerry_value_t value) /**< input value */
{
jerry_assert_api_available ();
if (!ecma_is_value_number (value))
{
return 0;
}
return ecma_number_to_int32 (ecma_get_number_from_value (value));
} /* jerry_value_as_int32 */
/**
* Convert any number to uint32 number.
*
* Note:
* For non-number values 0 is returned.
*
* @return uint32 representation of the number.
*/
uint32_t
jerry_value_as_uint32 (const jerry_value_t value) /**< input value */
{
jerry_assert_api_available ();
if (!ecma_is_value_number (value))
{
return 0;
}
return ecma_number_to_uint32 (ecma_get_number_from_value (value));
} /* jerry_value_as_uint32 */
/**
* Acquire specified Jerry API value.
*
jerry-core/include/jerryscript-core.h
+3
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@@ -557,6 +557,9 @@ jerry_value_t jerry_value_to_object (const jerry_value_t value);
jerry_value_t jerry_value_to_primitive (const jerry_value_t value);
jerry_value_t jerry_value_to_string (const jerry_value_t value);
jerry_value_t jerry_value_to_bigint (const jerry_value_t value);
double jerry_value_as_integer (const jerry_value_t value);
int32_t jerry_value_as_int32 (const jerry_value_t value);
uint32_t jerry_value_as_uint32 (const jerry_value_t value);
/**
* Acquire types with reference counter (increase the references).
tests/unit-core/test-number-converter.c
+137
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@@ -0,0 +1,137 @@
/* 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.
*/
#include "ecma-globals.h"
#include "ecma-helpers.h"
#include "test-common.h"
// basic toUint32 tester method
static void
test_to_uint32 (double input, uint32_t test_number)
{
jerry_value_t number_val = jerry_create_number (input);
uint32_t uint_number = jerry_value_as_uint32 (number_val);
TEST_ASSERT (uint_number == test_number);
jerry_release_value (number_val);
} /* test_to_uint32 */
// basic toInt32 tester method
static void
test_to_int32 (double input, int32_t test_number)
{
jerry_value_t number_val = jerry_create_number (input);
int32_t int_number = jerry_value_as_int32 (number_val);
TEST_ASSERT (int_number == test_number);
jerry_release_value (number_val);
} /* test_to_int32 */
// basic toInteger tester method
static void
test_to_interger (double input, double test_number)
{
jerry_value_t number_val = jerry_create_number (input);
double double_number = jerry_value_as_integer (number_val);
TEST_ASSERT (double_number == test_number);
jerry_release_value (number_val);
} /* test_to_interger */
int
main (void)
{
TEST_INIT ();
jerry_init (JERRY_INIT_EMPTY);
// few toUint32 test-cases
test_to_uint32 (1.0, 1);
test_to_uint32 (0.0, 0);
test_to_uint32 (NAN, 0);
test_to_uint32 (-NAN, 0);
test_to_uint32 (INFINITY, 0);
test_to_uint32 (-INFINITY, 0);
test_to_uint32 (0.1, 0);
test_to_uint32 (-0.1, 0);
test_to_uint32 (1.1, 1);
test_to_uint32 (-1.1, 4294967295);
test_to_uint32 (4294967295, 4294967295);
test_to_uint32 (-4294967295, 1);
test_to_uint32 (4294967296, 0);
test_to_uint32 (-4294967296, 0);
test_to_uint32 (4294967297, 1);
test_to_uint32 (-4294967297, 4294967295);
// few toint32 test-cases
test_to_int32 (1.0, 1);
test_to_int32 (0.0, 0);
test_to_int32 (NAN, 0);
test_to_int32 (-NAN, 0);
test_to_int32 (INFINITY, 0);
test_to_int32 (-INFINITY, 0);
test_to_int32 (0.1, 0);
test_to_int32 (-0.1, 0);
test_to_int32 (1.1, 1);
test_to_int32 (-1.1, -1);
test_to_int32 (4294967295, -1);
test_to_int32 (-4294967295, 1);
test_to_int32 (4294967296, 0);
test_to_int32 (-4294967296, 0);
test_to_int32 (4294967297, 1);
test_to_int32 (-4294967297, -1);
test_to_int32 (2147483648, -2147483648);
test_to_int32 (-2147483648, -2147483648);
test_to_int32 (2147483647, 2147483647);
test_to_int32 (-2147483647, -2147483647);
test_to_int32 (-2147483649, 2147483647);
test_to_int32 (2147483649, -2147483647);
// few toInteger test-cases
test_to_interger (1.0, 1.0);
test_to_interger (0.0, 0.0);
test_to_interger (NAN, 0);
test_to_interger (-NAN, 0);
test_to_interger (INFINITY, INFINITY);
test_to_interger (-INFINITY, -INFINITY);
test_to_interger (0.1, 0);
test_to_interger (-0.1, -0);
test_to_interger (1.1, 1);
test_to_interger (-1.1, -1);
test_to_interger (4294967295, 4294967295);
test_to_interger (-4294967295, -4294967295);
test_to_interger (4294967295, 4294967295);
test_to_interger (-4294967296, -4294967296);
test_to_interger (4294967297, 4294967297);
test_to_interger (-4294967297, -4294967297);
// few test-cases which return with error
jerry_value_t error_val = jerry_create_error (JERRY_ERROR_TYPE, (const jerry_char_t *) "error");
double number = jerry_value_as_integer (error_val);
jerry_release_value (error_val);
TEST_ASSERT (number == 0);
error_val = jerry_create_symbol (error_val);
number = jerry_value_as_integer (error_val);
TEST_ASSERT (number == 0);
jerry_release_value (error_val);
error_val = jerry_eval ((const jerry_char_t *) "({ valueOf() { throw new TypeError('foo')}})",
44, JERRY_PARSE_NO_OPTS);
number = jerry_value_as_integer (error_val);
TEST_ASSERT (number == 0);
jerry_release_value (error_val);
jerry_cleanup ();
return 0;
} /* main */