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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/debugger/debugger.c
+2 -6
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@@ -964,12 +964,8 @@ jerry_debugger_exception_object_to_string (ecma_value_t exception_obj_value) /**
data[size] = LIT_CHAR_COLON;
data[size + 1] = LIT_CHAR_SP;
ecma_string_t *type_string_p = ecma_new_ecma_string_from_utf8 (data, size + 2);
ecma_string_t *string_p = ecma_concat_ecma_strings (type_string_p,
ecma_get_string_from_value (prop_value_p->value));
ecma_deref_ecma_string (type_string_p);
return string_p;
return ecma_concat_ecma_strings (ecma_new_ecma_string_from_utf8 (data, size + 2),
ecma_get_string_from_value (prop_value_p->value));
} /* jerry_debugger_exception_object_to_string */
/**