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Implement direct strings. (#2196)

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Direct strings are a new type of direct ecma-values (no memory allocation
is needed for encoding them) in JerryScript. Currently magic strings,
external magic strings and uint values are encoded as direct strings.

The constant pool of JerryScript byte-code is changed to hold ecma-values
rather than cpointers to support direct strings.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2018-02-23 00:21:46 +01:00
committed by yichoi
parent fbf5c32747
commit 51e3c4455a
37 changed files with 1493 additions and 1148 deletions
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jerry-core/ecma/base/ecma-helpers.h
-2
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@@ -233,8 +233,6 @@ ecma_substring_copy_to_utf8_buffer (const ecma_string_t *string_desc_p,
void ecma_string_to_utf8_bytes (const ecma_string_t *string_desc_p, lit_utf8_byte_t *buffer_p,
lit_utf8_size_t buffer_size);
const lit_utf8_byte_t *ecma_string_get_chars (const ecma_string_t *string_p, lit_utf8_size_t *size_p, bool *is_ascii_p);
void ecma_init_ecma_string_from_uint32 (ecma_string_t *string_desc_p, uint32_t uint32_number);
void ecma_init_ecma_magic_string (ecma_string_t *string_desc_p, lit_magic_string_id_t id);
bool ecma_compare_ecma_string_to_magic_id (const ecma_string_t *string_p, lit_magic_string_id_t id);
bool ecma_string_is_empty (const ecma_string_t *string_p);
bool ecma_string_is_length (const ecma_string_t *string_p);