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Implement function.toString operation (#4752)

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May increase the memory consumtpion heavily.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2021-08-31 13:37:25 +02:00
committed by GitHub
parent 1c6b18ecdf
commit 6649940ea6
37 changed files with 1002 additions and 192 deletions
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jerry-core/parser/js/byte-code.h
+58 -12
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@@ -895,6 +895,27 @@ typedef enum
check a range of types without decoding the actual type. */
} cbc_code_flags_t;
/**
* Optional byte code fields. These fields are stored in a reversed
* order from the end of the byte code data.
*
* Value fields:
* - when CBC_CODE_FLAGS_MAPPED_ARGUMENTS_NEEDED is set:
* argument_end number of argument names encoded as strings
* - when function type is not CBC_FUNCTION_CONSTRUCTOR:
* function name encoded as string
* - when CBC_CODE_FLAGS_HAS_TAGGED_LITERALS is set:
* pointer to the tagged template collection encoded as value
*
* Byte fields when CBC_CODE_FLAGS_HAS_EXTENDED_INFO is set:
* - always available:
* a byte which contains a combination of CBC_EXTENDED_CODE_FLAGS bits
* - when CBC_EXTENDED_CODE_FLAGS_HAS_ARGUMENT_LENGTH is set:
* a vlq encoded default value for function length
* - when CBC_EXTENDED_CODE_FLAGS_HAS_SOURCE_CODE_RANGE is set:
* a pair of vlq encoded values, representing the start and size of the range
*/
/**
* Compact byte code function types.
*/
@@ -962,9 +983,15 @@ typedef enum
((flags) >= (CBC_FUNCTION_ARROW << CBC_FUNCTION_TYPE_SHIFT))
/**
* Get length property from extended info
* Compact byte code extended status flags.
*/
#define CBC_EXTENDED_INFO_GET_LENGTH(extended_info) (extended_info)
typedef enum
{
CBC_EXTENDED_CODE_FLAGS_HAS_ARGUMENT_LENGTH = (1u << 0), /**< has argument length */
CBC_EXTENDED_CODE_FLAGS_HAS_SOURCE_CODE_RANGE = (1u << 1), /**< has source code range (start, end) */
CBC_EXTENDED_CODE_FLAGS_SOURCE_CODE_IN_ARGUMENTS = (1u << 2), /**< source code range is inside
* the function arguments */
} cbc_extended_code_flags_t;
/**
* Shared script data.
@@ -977,20 +1004,25 @@ typedef enum
} cbc_script_type;
/**
* Value for increasing or decreasing the script reference counter.
* Script is a function with arguments source code.
*/
#define CBC_SCRIPT_REF_ONE 0x4
#define CBC_SCRIPT_HAS_FUNCTION_ARGUMENTS 0x4
/**
* Get the type of a script.
* Value for increasing or decreasing the script reference counter.
*/
#define CBC_SCRIPT_GET_TYPE(script_p) ((script_p)->refs_and_type & (CBC_SCRIPT_REF_ONE - 1))
#define CBC_SCRIPT_REF_ONE 0x8
/**
* Maximum value of script reference counter.
*/
#define CBC_SCRIPT_REF_MAX (UINT32_MAX - CBC_SCRIPT_REF_ONE + 1)
/**
* Get the type of a script.
*/
#define CBC_SCRIPT_GET_TYPE(script_p) ((script_p)->refs_and_type & 0x3)
/**
* Sets the type of a script using the user_value.
*/
@@ -1018,16 +1050,30 @@ typedef struct
#if JERRY_RESOURCE_NAME
ecma_value_t resource_name; /**< resource name */
#endif /* JERRY_RESOURCE_NAME */
#if JERRY_FUNCTION_TO_STRING
ecma_value_t source_code; /**< source code */
#endif /* JERRY_FUNCTION_TO_STRING */
} cbc_script_t;
/**
* Script data with user value.
* Get the array of optional values assigned to a script.
*
* First value: user value
* Second value: function arguments value
*/
typedef struct
{
cbc_script_t header; /**< script header */
ecma_value_t user_value; /**< user value */
} cbc_script_user_t;
#define CBC_SCRIPT_GET_OPTIONAL_VALUES(script_p) ((ecma_value_t *) ((script_p) + 1))
/**
* Get user value.
*/
#define CBC_SCRIPT_GET_USER_VALUE(script_p) \
(CBC_SCRIPT_GET_OPTIONAL_VALUES (script_p)[0])
/**
* Get function arguments.
*/
#define CBC_SCRIPT_GET_FUNCTION_ARGUMENTS(script_p, type) \
(CBC_SCRIPT_GET_OPTIONAL_VALUES (script_p)[(type) != CBC_SCRIPT_GENERIC ? 1 : 0])
#define CBC_OPCODE(arg1, arg2, arg3, arg4) arg1,