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Adding configuration header file for engine's parameters/limitations

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This commit is contained in:
Ruben Ayrapetyan
2014-08-22 18:27:25 +04:00
parent dca9bcc387
commit f266b84016
5 changed files with 128 additions and 12 deletions
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src/libecmaobjects/ecma-globals.h
+20 -1
View File
@@ -21,8 +21,9 @@
*/
#ifndef JERRY_ECMA_GLOBALS_H
#define JERRY_ECMA_GLOBALS_H
#define JERRY_ECMA_GLOBALS_H
#include "config.h"
#include "globals.h"
#include "mem-allocator.h"
@@ -442,15 +443,33 @@ typedef struct
ecma_property_configurable_value_t configurable;
} ecma_property_descriptor_t;
#ifdef CONFIG_ECMA_CHAR_ASCII
/**
* Description of an ecma-character
*/
typedef uint8_t ecma_char_t;
#elif defined (CONFIG_ECMA_CHAR_UTF16)
/**
* Description of an ecma-character
*/
typedef uint16_t ecma_char_t;
#else /* !CONFIG_ECMA_CHAR_ASCII && !CONFIG_ECMA_CHAR_UTF16 */
# error "!CONFIG_ECMA_CHAR_ASCII && !CONFIG_ECMA_CHAR_UTF16"
#endif /* !CONFIG_ECMA_CHAR_ASCII && !CONFIG_ECMA_CHAR_UTF16 */
#ifdef CONFIG_ECMA_NUMBER_FLOAT32
/**
* Description of an ecma-number
*/
typedef float ecma_number_t;
#elif defined (CONFIG_ECMA_NUMBER_FLOAT64)
/**
* Description of an ecma-number
*/
typedef double ecma_number_t;
#else /* !CONFIG_ECMA_NUMBER_FLOAT32 && !CONFIG_ECMA_NUMBER_FLOAT64 */
#error "!CONFIG_ECMA_NUMBER_FLOAT32 && !CONFIG_ECMA_NUMBER_FLOAT64"
#endif /* !CONFIG_ECMA_NUMBER_FLOAT32 && !CONFIG_ECMA_NUMBER_FLOAT64 */
/**
* Value '0' of ecma_number_t
src/libecmaobjects/ecma-helpers-number.c
+3 -3
View File
@@ -284,7 +284,7 @@ ecma_number_get_fraction_and_exponent (ecma_number_t num, /**< ecma-number */
/* IEEE-754 2008, 3.4, d */
exponent = 1 - ecma_number_exponent_bias;
while (!(fraction & (1u << ECMA_NUMBER_FRACTION_WIDTH)))
while (!(fraction & (1ul << ECMA_NUMBER_FRACTION_WIDTH)))
{
JERRY_ASSERT (fraction != 0);
@@ -298,8 +298,8 @@ ecma_number_get_fraction_and_exponent (ecma_number_t num, /**< ecma-number */
exponent = (int32_t) biased_exp - ecma_number_exponent_bias;
JERRY_ASSERT (biased_exp > 0 && biased_exp < (1u << ECMA_NUMBER_BIASED_EXP_WIDTH) - 1);
JERRY_ASSERT ((fraction & (1u << ECMA_NUMBER_FRACTION_WIDTH)) == 0);
fraction |= 1u << ECMA_NUMBER_FRACTION_WIDTH;
JERRY_ASSERT ((fraction & (1ul << ECMA_NUMBER_FRACTION_WIDTH)) == 0);
fraction |= 1ul << ECMA_NUMBER_FRACTION_WIDTH;
}
*out_fraction_p = fraction;