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Optimize string concatenation. (#2141)

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This patch adds two new string concatenation functions:
ecma_append_chars_to_string and ecma_append_magic_string_to_string

The former appends a cesu8 byte array and the latter appends a magic string
to the end of an ecma-string. These two free (dereference) their ecma-string
argument, and this change is also applied to the original ecma_concat_ecma_strings
function which simplifies string handling in most cases.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2017-12-19 13:45:48 +01:00
committed by GitHub
parent bd574956e3
commit a2d3ea61eb
16 changed files with 369 additions and 555 deletions
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jerry-core/ecma/builtin-objects/ecma-builtin-helpers.h
+2 -4
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@@ -146,16 +146,14 @@ typedef struct
bool ecma_has_object_value_in_collection (ecma_collection_header_t *collection_p, ecma_value_t object_value);
bool ecma_has_string_value_in_collection (ecma_collection_header_t *collection_p, ecma_value_t string_value);
ecma_string_t *
ecma_builtin_helper_json_create_hex_digit_ecma_string (uint8_t value);
ecma_string_t *
ecma_builtin_helper_json_create_separated_properties (ecma_collection_header_t *partial_p, ecma_string_t *separator_p);
ecma_value_t
ecma_builtin_helper_json_create_formatted_json (ecma_string_t *left_bracket_p, ecma_string_t *right_bracket_p,
ecma_builtin_helper_json_create_formatted_json (lit_utf8_byte_t left_bracket, lit_utf8_byte_t right_bracket,
ecma_string_t *stepback_p, ecma_collection_header_t *partial_p,
ecma_json_stringify_context_t *context_p);
ecma_value_t
ecma_builtin_helper_json_create_non_formatted_json (ecma_string_t *left_bracket_p, ecma_string_t *right_bracket_p,
ecma_builtin_helper_json_create_non_formatted_json (lit_utf8_byte_t left_bracket, lit_utf8_byte_t right_bracket,
ecma_collection_header_t *partial_p);
/* ecma-builtin-helper-error.c */