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Implement unary operators: bitwise not, pre/post increment/decrement (#4116)

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-08-10 22:38:34 +02:00
committed by GitHub
parent 43a82cddb9
commit 39fe04814e
11 changed files with 519 additions and 110 deletions
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jerry-core/ecma/operations/ecma-bigint.c
+85 -11
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@@ -34,6 +34,34 @@ ecma_bigint_raise_memory_error (void)
return ecma_raise_range_error (ECMA_ERR_MSG ("Cannot allocate memory for a BigInt value"));
} /* ecma_bigint_raise_memory_error */
/**
* Create a single digit long BigInt value
*
* @return ecma BigInt value or ECMA_VALUE_ERROR
* Returned value must be freed with ecma_free_value.
*/
static ecma_value_t
ecma_bigint_create_from_digit (ecma_bigint_digit_t digit, /* single digit */
bool sign) /* set ECMA_BIGINT_SIGN if true */
{
JERRY_ASSERT (digit != 0);
ecma_extended_primitive_t *result_value_p = ecma_bigint_create (sizeof (ecma_bigint_digit_t));
if (JERRY_UNLIKELY (result_value_p == NULL))
{
return ecma_bigint_raise_memory_error ();
}
if (sign)
{
result_value_p->u.bigint_sign_and_size |= ECMA_BIGINT_SIGN;
}
*ECMA_BIGINT_GET_DIGITS (result_value_p, 0) = digit;
return ecma_make_extended_primitive_value (result_value_p, ECMA_TYPE_BIGINT);
} /* ecma_bigint_create_from_digit */
/**
* Parse a string and create a BigInt value
*
@@ -443,17 +471,7 @@ ecma_bigint_to_bigint (ecma_value_t value, /**< any value */
}
else if (ecma_is_value_true (value))
{
ecma_extended_primitive_t *result_p = ecma_bigint_create (sizeof (ecma_bigint_digit_t));
if (result_p != NULL)
{
*ECMA_BIGINT_GET_DIGITS (result_p, 0) = 1;
result = ecma_make_extended_primitive_value (result_p, ECMA_TYPE_BIGINT);
}
else
{
result = ecma_bigint_raise_memory_error ();
}
result = ecma_bigint_create_from_digit (1, false);
}
else
{
@@ -911,6 +929,62 @@ ecma_bigint_negate (ecma_extended_primitive_t *value_p) /**< BigInt value */
return ecma_make_extended_primitive_value (result_p, ECMA_TYPE_BIGINT);
} /* ecma_bigint_negate */
/**
* Invert all bits of a BigInt value
*
* @return ecma BigInt value or ECMA_VALUE_ERROR
* Returned value must be freed with ecma_free_value.
*/
ecma_value_t
ecma_bigint_unary (ecma_value_t value, /**< BigInt value */
ecma_bigint_unary_operation_type type) /**< type of unary operation */
{
JERRY_ASSERT (ecma_is_value_bigint (value));
if (value == ECMA_BIGINT_ZERO)
{
return ecma_bigint_create_from_digit (1, type != ECMA_BIGINT_UNARY_INCREASE);
}
ecma_extended_primitive_t *value_p = ecma_get_extended_primitive_from_value (value);
uint32_t sign = (type != ECMA_BIGINT_UNARY_DECREASE) ? ECMA_BIGINT_SIGN : 0;
if ((value_p->u.bigint_sign_and_size == (uint32_t) (sizeof (ecma_bigint_digit_t) | sign))
&& *ECMA_BIGINT_GET_DIGITS (value_p, 0) == 1)
{
return ECMA_BIGINT_ZERO;
}
ecma_extended_primitive_t *result_p;
if ((value_p->u.bigint_sign_and_size & ECMA_BIGINT_SIGN) == (sign ^ ECMA_BIGINT_SIGN))
{
result_p = ecma_big_uint_increase (value_p);
if (type != ECMA_BIGINT_UNARY_INCREASE && result_p != NULL)
{
result_p->u.bigint_sign_and_size |= ECMA_BIGINT_SIGN;
}
}
else
{
result_p = ecma_big_uint_decrease (value_p);
if (type == ECMA_BIGINT_UNARY_INCREASE && result_p != NULL)
{
result_p->u.bigint_sign_and_size |= ECMA_BIGINT_SIGN;
}
}
if (JERRY_UNLIKELY (result_p == NULL))
{
return ecma_bigint_raise_memory_error ();
}
return ecma_make_extended_primitive_value (result_p, ECMA_TYPE_BIGINT);
} /* ecma_bigint_unary */
/**
* Add/subtract right BigInt value to/from left BigInt value
*