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Add new type which represents pointer with tag value (#3591)

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jmem_cpointer_tag_t is newly added to represent pointer along with tag value.
This new type is first applied to scope_cp to mark initailized function properties (length, name) later

JerryScript-DCO-1.0-Signed-off-by: HyukWoo Park hyukwoo.park@samsung.com
This commit is contained in:
Hyukwoo Park
2020-03-02 23:59:55 +09:00
committed by GitHub
parent 19c61e14c0
commit 34edf53753
8 changed files with 135 additions and 24 deletions
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jerry-core/ecma/base/ecma-helpers.h
+33
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@@ -32,6 +32,12 @@
*/
#define ECMA_GET_NON_NULL_POINTER(type, field) JMEM_CP_GET_NON_NULL_POINTER (type, field)
/**
* Extract value of pointer from specified pointer-tag value
*/
#define ECMA_GET_NON_NULL_POINTER_FROM_POINTER_TAG(type, field) \
JMEM_CP_GET_NON_NULL_POINTER_FROM_POINTER_TAG (type, field)
/**
* Get value of pointer from specified compressed pointer.
*/
@@ -44,12 +50,39 @@
#define ECMA_SET_NON_NULL_POINTER(field, non_compressed_pointer) JMEM_CP_SET_NON_NULL_POINTER (field, \
non_compressed_pointer)
/**
* Set value of pointer-tag value so that it will correspond
* to specified non_compressed_pointer along with tag
*/
#define ECMA_SET_NON_NULL_POINTER_TAG(field, non_compressed_pointer, tag) \
JMEM_CP_SET_NON_NULL_POINTER_TAG (field, non_compressed_pointer, tag)
/**
* Set value of compressed pointer so that it will correspond
* to specified non_compressed_pointer.
*/
#define ECMA_SET_POINTER(field, non_compressed_pointer) JMEM_CP_SET_POINTER (field, non_compressed_pointer)
/**
* Get value of each tag bit from specified pointer-tag value
*/
#define ECMA_GET_FIRST_BIT_FROM_POINTER_TAG(field) \
JMEM_CP_GET_FIRST_BIT_FROM_POINTER_TAG (field) /**< get first tag bit from jmem_cpointer_tag_t **/
#define ECMA_GET_SECOND_BIT_FROM_POINTER_TAG(field) \
JMEM_CP_GET_SECOND_BIT_FROM_POINTER_TAG (field) /**< get second tag bit from jmem_cpointer_tag_t **/
#define ECMA_GET_THIRD_BIT_FROM_POINTER_TAG(field) \
JMEM_CP_GET_THIRD_BIT_FROM_POINTER_TAG (field) /**< get third tag bit from jmem_cpointer_tag_t **/
/**
* Set value of each tag bit to specified pointer-tag value
*/
#define ECMA_SET_FIRST_BIT_TO_POINTER_TAG(field) \
JMEM_CP_SET_FIRST_BIT_TO_POINTER_TAG (field) /**< set first tag bit to jmem_cpointer_tag_t **/
#define ECMA_SET_SECOND_BIT_TO_POINTER_TAG(field) \
JMEM_CP_SET_SECOND_BIT_TO_POINTER_TAG (field) /**< set second tag bit to jmem_cpointer_tag_t **/
#define ECMA_SET_THIRD_BIT_TO_POINTER_TAG(field) \
JMEM_CP_SET_THIRD_BIT_TO_POINTER_TAG (field) /**< set third tag bit to jmem_cpointer_tag_t **/
/**
* Status flags for ecma_string_get_chars function
*/