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Implement ecma_stringbuilder_create_raw method for stringbuilder (#3584)

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With this new method, we can create a stringbuilder from a raw string

JerryScript-DCO-1.0-Signed-off-by: Adam Szilagyi aszilagy@inf.u-szeged.hu
This commit is contained in:
Szilagyi Adam
2020-03-02 15:39:12 +01:00
committed by GitHub
parent ec39d08d67
commit aa17a4fa5d
6 changed files with 30 additions and 11 deletions
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jerry-core/ecma/base/ecma-helpers-string.c
+23
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@@ -2528,6 +2528,29 @@ ecma_stringbuilder_create_from (ecma_string_t *string_p) /**< ecma string */
return ret;
} /* ecma_stringbuilder_create_from */
/**
* Create a string builder from a raw string
*
* @return new string builder
*/
ecma_stringbuilder_t
ecma_stringbuilder_create_raw (const lit_utf8_byte_t *data_p, /**< pointer to data */
const lit_utf8_size_t data_size) /**< size of the data */
{
const lit_utf8_size_t initial_size = data_size + (lit_utf8_size_t) sizeof (ecma_ascii_string_t);
ecma_stringbuilder_header_t *header_p = (ecma_stringbuilder_header_t *) jmem_heap_alloc_block (initial_size);
header_p->current_size = initial_size;
#if ENABLED (JERRY_MEM_STATS)
jmem_stats_allocate_string_bytes (initial_size);
#endif /* ENABLED (JERRY_MEM_STATS) */
memcpy (ECMA_STRINGBUILDER_STRING_PTR (header_p), data_p, data_size);
ecma_stringbuilder_t ret = {.header_p = header_p};
return ret;
} /* ecma_stringbuilder_create_raw */
/**
* Grow the underlying buffer of a string builder
*