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Implementing Math.min and Math.max built-ins.

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This commit is contained in:
Ruben Ayrapetyan
2014-09-23 18:44:27 +04:00
parent c5fd835931
commit 6c422fec2e
3 changed files with 212 additions and 2 deletions
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src/libecmabuiltins/ecma-builtin-math-object.c
+150 -2
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@@ -338,7 +338,81 @@ static ecma_completion_value_t
ecma_builtin_math_object_max (ecma_value_t args[], /**< arguments list */
ecma_length_t args_number) /**< number of arguments */
{
JERRY_UNIMPLEMENTED_REF_UNUSED_VARS (args, args_number);
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
ecma_number_t ret_num = ecma_number_make_infinity (true);
bool is_just_convert = false;
for (ecma_length_t arg_index = 0;
arg_index < args_number;
arg_index++)
{
ECMA_TRY_CATCH (arg_num_value,
ecma_op_to_number (args[arg_index]),
ret_value);
if (!is_just_convert)
{
ecma_number_t arg_num = *(ecma_number_t*) ECMA_GET_POINTER (arg_num_value.u.value.value);
if (unlikely (ecma_number_is_nan (arg_num)))
{
ret_num = arg_num;
is_just_convert = true;
}
else if (ecma_number_is_zero (arg_num) /* both numbers are zeroes */
&& ecma_number_is_zero (ret_num))
{
if (!ecma_number_is_negative (arg_num))
{
ret_num = arg_num;
}
}
else if (ecma_number_is_infinity (arg_num))
{
if (!ecma_number_is_negative (arg_num))
{
ret_num = arg_num;
is_just_convert = true;
}
}
else if (ecma_number_is_infinity (ret_num)) /* ret_num is negative infinity */
{
JERRY_ASSERT (ecma_number_is_negative (ret_num));
ret_num = arg_num;
}
else
{
JERRY_ASSERT (!ecma_number_is_nan (arg_num)
&& !ecma_number_is_infinity (arg_num));
JERRY_ASSERT (!ecma_number_is_nan (ret_num)
&& !ecma_number_is_infinity (ret_num));
if (arg_num > ret_num)
{
ret_num = arg_num;
}
}
}
ECMA_FINALIZE (arg_num_value);
if (ecma_is_completion_value_throw (ret_value))
{
return ret_value;
}
JERRY_ASSERT (ecma_is_completion_value_empty (ret_value));
}
JERRY_ASSERT (ecma_is_completion_value_empty (ret_value));
ecma_number_t *num_p = ecma_alloc_number ();
*num_p = ret_num;
return ecma_make_return_completion_value (ecma_make_number_value (num_p));
} /* ecma_builtin_math_object_max */
/**
@@ -354,7 +428,81 @@ static ecma_completion_value_t
ecma_builtin_math_object_min (ecma_value_t args[], /**< arguments list */
ecma_length_t args_number) /**< number of arguments */
{
JERRY_UNIMPLEMENTED_REF_UNUSED_VARS (args, args_number);
ecma_completion_value_t ret_value = ecma_make_empty_completion_value ();
ecma_number_t ret_num = ecma_number_make_infinity (false);
bool is_just_convert = false;
for (ecma_length_t arg_index = 0;
arg_index < args_number;
arg_index++)
{
ECMA_TRY_CATCH (arg_num_value,
ecma_op_to_number (args[arg_index]),
ret_value);
if (!is_just_convert)
{
ecma_number_t arg_num = *(ecma_number_t*) ECMA_GET_POINTER (arg_num_value.u.value.value);
if (unlikely (ecma_number_is_nan (arg_num)))
{
ret_num = arg_num;
is_just_convert = true;
}
else if (ecma_number_is_zero (arg_num) /* both numbers are zeroes */
&& ecma_number_is_zero (ret_num))
{
if (ecma_number_is_negative (arg_num))
{
ret_num = arg_num;
}
}
else if (ecma_number_is_infinity (arg_num))
{
if (ecma_number_is_negative (arg_num))
{
ret_num = arg_num;
is_just_convert = true;
}
}
else if (ecma_number_is_infinity (ret_num)) /* ret_num is positive infinity */
{
JERRY_ASSERT (!ecma_number_is_negative (ret_num));
ret_num = arg_num;
}
else
{
JERRY_ASSERT (!ecma_number_is_nan (arg_num)
&& !ecma_number_is_infinity (arg_num));
JERRY_ASSERT (!ecma_number_is_nan (ret_num)
&& !ecma_number_is_infinity (ret_num));
if (arg_num < ret_num)
{
ret_num = arg_num;
}
}
}
ECMA_FINALIZE (arg_num_value);
if (ecma_is_completion_value_throw (ret_value))
{
return ret_value;
}
JERRY_ASSERT (ecma_is_completion_value_empty (ret_value));
}
JERRY_ASSERT (ecma_is_completion_value_empty (ret_value));
ecma_number_t *num_p = ecma_alloc_number ();
*num_p = ret_num;
return ecma_make_return_completion_value (ecma_make_number_value (num_p));
} /* ecma_builtin_math_object_min */
/**