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[API] Introduce jerry_parse_and_save_literals() (#1500)

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This function can be used to save literals into a specific file in a list or C format.
These literals are valid identifiers, and doesn't match to any magic-string.
The '--save-literals-list-format FILE' and '--save-literals-c-format FILE'
options are used to save into the given file, when the snapshot-save is enabled.
The saved literals are sorted by size and lexicographically.
The C-format is useful for jerry_register_magic_strings() to generate the array
of external magic strings.

JerryScript-DCO-1.0-Signed-off-by: Zsolt Borbély zsborbely.u-szeged@partner.samsung.com
This commit is contained in:
Zsolt Borbély
2017-01-11 14:18:09 +01:00
committed by GitHub
parent 7d83293762
commit f1ed5715e3
5 changed files with 631 additions and 13 deletions
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tests/unit/test-api.c
+56
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@@ -950,5 +950,61 @@ main (void)
jerry_cleanup ();
}
/* Save literals */
if (jerry_is_feature_enabled (JERRY_FEATURE_SNAPSHOT_SAVE))
{
/* C format generation */
jerry_init (JERRY_INIT_EMPTY);
static jerry_char_t literal_buffer_c[256];
static const char *code_for_c_format_p = "var object = { aa:'fo o', Bb:'max', aaa:'xzy0' };";
size_t literal_sizes_c_format = jerry_parse_and_save_literals ((jerry_char_t *) code_for_c_format_p,
strlen (code_for_c_format_p),
false,
literal_buffer_c,
sizeof (literal_buffer_c),
true);
TEST_ASSERT (literal_sizes_c_format == 203);
static const char *expected_c_format = (
"jerry_length_t literal_count = 4;\n\n"
"jerry_char_ptr_t literals[4] =\n"
"{\n"
" \"Bb\",\n"
" \"aa\",\n"
" \"aaa\",\n"
" \"xzy0\"\n"
"};\n\n"
"jerry_length_t literal_sizes[4] =\n"
"{\n"
" 2 /* Bb */,\n"
" 2 /* aa */,\n"
" 3 /* aaa */,\n"
" 4 /* xzy0 */\n"
"};\n"
);
TEST_ASSERT (!strncmp ((char *) literal_buffer_c, expected_c_format, literal_sizes_c_format));
jerry_cleanup ();
/* List format generation */
jerry_init (JERRY_INIT_EMPTY);
static jerry_char_t literal_buffer_list[256];
static const char *code_for_list_format_p = "var obj = { a:'aa', bb:'Bb' };";
size_t literal_sizes_list_format = jerry_parse_and_save_literals ((jerry_char_t *) code_for_list_format_p,
strlen (code_for_list_format_p),
false,
literal_buffer_list,
sizeof (literal_buffer_list),
false);
TEST_ASSERT (literal_sizes_list_format == 25);
TEST_ASSERT (!strncmp ((char *) literal_buffer_list, "1 a\n2 Bb\n2 aa\n2 bb\n3 obj\n", literal_sizes_list_format));
jerry_cleanup ();
}
return 0;
} /* main */