JavaScript-Embedded
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lib/JavaScript/Embedded/C/lib/duktape.c view on Meta::CPAN
#define DUK_HEAP_STRING_WITH(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_WITH)
#define DUK_HTHREAD_STRING_WITH(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_WITH)
#define DUK_STRIDX_CLASS 149 /* 'class' */
#define DUK_HEAP_STRING_CLASS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_CLASS)
#define DUK_HTHREAD_STRING_CLASS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_CLASS)
#define DUK_STRIDX_ENUM 150 /* 'enum' */
#define DUK_HEAP_STRING_ENUM(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_ENUM)
#define DUK_HTHREAD_STRING_ENUM(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_ENUM)
#define DUK_STRIDX_EXPORT 151 /* 'export' */
#define DUK_HEAP_STRING_EXPORT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_EXPORT)
#define DUK_HTHREAD_STRING_EXPORT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_EXPORT)
#define DUK_STRIDX_EXTENDS 152 /* 'extends' */
#define DUK_HEAP_STRING_EXTENDS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_EXTENDS)
#define DUK_HTHREAD_STRING_EXTENDS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_EXTENDS)
#define DUK_STRIDX_IMPORT 153 /* 'import' */
#define DUK_HEAP_STRING_IMPORT(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_IMPORT)
#define DUK_HTHREAD_STRING_IMPORT(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_IMPORT)
#define DUK_STRIDX_SUPER 154 /* 'super' */
#define DUK_HEAP_STRING_SUPER(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_SUPER)
#define DUK_HTHREAD_STRING_SUPER(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_SUPER)
#define DUK_STRIDX_LC_NULL 155 /* 'null' */
#define DUK_HEAP_STRING_LC_NULL(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LC_NULL)
#define DUK_HTHREAD_STRING_LC_NULL(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LC_NULL)
#define DUK_STRIDX_TRUE 156 /* 'true' */
#define DUK_HEAP_STRING_TRUE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_TRUE)
#define DUK_HTHREAD_STRING_TRUE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_TRUE)
#define DUK_STRIDX_FALSE 157 /* 'false' */
#define DUK_HEAP_STRING_FALSE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_FALSE)
#define DUK_HTHREAD_STRING_FALSE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_FALSE)
#define DUK_STRIDX_IMPLEMENTS 158 /* 'implements' */
#define DUK_HEAP_STRING_IMPLEMENTS(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_IMPLEMENTS)
#define DUK_HTHREAD_STRING_IMPLEMENTS(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_IMPLEMENTS)
#define DUK_STRIDX_INTERFACE 159 /* 'interface' */
#define DUK_HEAP_STRING_INTERFACE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_INTERFACE)
#define DUK_HTHREAD_STRING_INTERFACE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_INTERFACE)
#define DUK_STRIDX_LET 160 /* 'let' */
#define DUK_HEAP_STRING_LET(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_LET)
#define DUK_HTHREAD_STRING_LET(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_LET)
#define DUK_STRIDX_PACKAGE 161 /* 'package' */
#define DUK_HEAP_STRING_PACKAGE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PACKAGE)
#define DUK_HTHREAD_STRING_PACKAGE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PACKAGE)
#define DUK_STRIDX_PRIVATE 162 /* 'private' */
#define DUK_HEAP_STRING_PRIVATE(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PRIVATE)
#define DUK_HTHREAD_STRING_PRIVATE(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PRIVATE)
#define DUK_STRIDX_PROTECTED 163 /* 'protected' */
#define DUK_HEAP_STRING_PROTECTED(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PROTECTED)
#define DUK_HTHREAD_STRING_PROTECTED(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PROTECTED)
#define DUK_STRIDX_PUBLIC 164 /* 'public' */
#define DUK_HEAP_STRING_PUBLIC(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_PUBLIC)
#define DUK_HTHREAD_STRING_PUBLIC(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_PUBLIC)
#define DUK_STRIDX_STATIC 165 /* 'static' */
#define DUK_HEAP_STRING_STATIC(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_STATIC)
#define DUK_HTHREAD_STRING_STATIC(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_STATIC)
#define DUK_STRIDX_YIELD 166 /* 'yield' */
#define DUK_HEAP_STRING_YIELD(heap) DUK_HEAP_GET_STRING((heap),DUK_STRIDX_YIELD)
#define DUK_HTHREAD_STRING_YIELD(thr) DUK_HTHREAD_GET_STRING((thr),DUK_STRIDX_YIELD)
#define DUK_HEAP_NUM_STRINGS 167
#define DUK_STRIDX_START_RESERVED 122
#define DUK_STRIDX_START_STRICT_RESERVED 158
#define DUK_STRIDX_END_RESERVED 167 /* exclusive endpoint */
/* To convert a heap stridx to a token number, subtract
* DUK_STRIDX_START_RESERVED and add DUK_TOK_START_RESERVED.
*/
#if !defined(DUK_SINGLE_FILE)
DUK_INTERNAL_DECL const duk_uint8_t duk_strings_data[972];
#endif /* !DUK_SINGLE_FILE */
#define DUK_STRDATA_MAX_STRLEN 27
#define DUK_STRDATA_DATA_LENGTH 972
#endif /* DUK_USE_ROM_STRINGS */
#if defined(DUK_USE_ROM_OBJECTS)
#error RAM support not enabled, rerun configure.py with --ram-support
#else /* DUK_USE_ROM_OBJECTS */
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_function_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_function_prototype(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_array_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_string_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_boolean_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_number_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_date_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_regexp_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_error_constructor_shared(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_type_error_thrower(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_parse_int(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_parse_float(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_thread_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_pointer_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_proxy_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_symbol_constructor_shared(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_arraybuffer_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_dataview_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_typedarray_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_nodejs_buffer_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_textencoder_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_textdecoder_constructor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_eval(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_is_nan(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_is_finite(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_decode_uri(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_decode_uri_component(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_encode_uri(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_encode_uri_component(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_escape(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_global_object_unescape(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_getprototype_shared(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_setprototype_shared(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_get_own_property_descriptor(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_keys_shared(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_assign(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_create(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_define_property(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_define_properties(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_seal_freeze_shared(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_prevent_extensions(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_is_sealed_frozen_shared(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_is_extensible(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_constructor_is(duk_context *ctx);
DUK_INTERNAL_DECL duk_ret_t duk_bi_object_prototype_to_string(duk_context *ctx);
lib/JavaScript/Embedded/C/lib/duktape.c view on Meta::CPAN
/* XXX: the string shouldn't appear twice, but we now loop to the
* end anyway; if fixed, add a looping assertion to ensure there
* is no duplicate.
*/
}
}
}
/*
* String scanning helpers
*
* All bytes other than UTF-8 continuation bytes ([0x80,0xbf]) are
* considered to contribute a character. This must match how string
* character length is computed.
*/
DUK_LOCAL const duk_uint8_t *duk__scan_forwards(const duk_uint8_t *p, const duk_uint8_t *q, duk_uint_fast32_t n) {
while (n > 0) {
for (;;) {
p++;
if (p >= q) {
return NULL;
}
if ((*p & 0xc0) != 0x80) {
break;
}
}
n--;
}
return p;
}
DUK_LOCAL const duk_uint8_t *duk__scan_backwards(const duk_uint8_t *p, const duk_uint8_t *q, duk_uint_fast32_t n) {
while (n > 0) {
for (;;) {
p--;
if (p < q) {
return NULL;
}
if ((*p & 0xc0) != 0x80) {
break;
}
}
n--;
}
return p;
}
/*
* Convert char offset to byte offset
*
* Avoid using the string cache if possible: for ASCII strings byte and
* char offsets are equal and for short strings direct scanning may be
* better than using the string cache (which may evict a more important
* entry).
*
* Typing now assumes 32-bit string byte/char offsets (duk_uint_fast32_t).
* Better typing might be to use duk_size_t.
*
* Caller should ensure 'char_offset' is within the string bounds [0,charlen]
* (endpoint is inclusive). If this is not the case, no memory unsafe
* behavior will happen but an error will be thrown.
*/
DUK_INTERNAL duk_uint_fast32_t duk_heap_strcache_offset_char2byte(duk_hthread *thr, duk_hstring *h, duk_uint_fast32_t char_offset) {
duk_heap *heap;
duk_strcache_entry *sce;
duk_uint_fast32_t byte_offset;
duk_uint_t i;
duk_bool_t use_cache;
duk_uint_fast32_t dist_start, dist_end, dist_sce;
duk_uint_fast32_t char_length;
const duk_uint8_t *p_start;
const duk_uint8_t *p_end;
const duk_uint8_t *p_found;
/*
* For ASCII strings, the answer is simple.
*/
if (DUK_LIKELY(DUK_HSTRING_IS_ASCII(h))) {
return char_offset;
}
char_length = (duk_uint_fast32_t) DUK_HSTRING_GET_CHARLEN(h);
DUK_ASSERT(char_offset <= char_length);
if (DUK_LIKELY(DUK_HSTRING_IS_ASCII(h))) {
/* Must recheck because the 'is ascii' flag may be set
* lazily. Alternatively, we could just compare charlen
* to bytelen.
*/
return char_offset;
}
/*
* For non-ASCII strings, we need to scan forwards or backwards
* from some starting point. The starting point may be the start
* or end of the string, or some cached midpoint in the string
* cache.
*
* For "short" strings we simply scan without checking or updating
* the cache. For longer strings we check and update the cache as
* necessary, inserting a new cache entry if none exists.
*/
DUK_DDD(DUK_DDDPRINT("non-ascii string %p, char_offset=%ld, clen=%ld, blen=%ld",
(void *) h,
(long) char_offset,
(long) DUK_HSTRING_GET_CHARLEN(h),
(long) DUK_HSTRING_GET_BYTELEN(h)));
heap = thr->heap;
sce = NULL;
use_cache = (char_length > DUK_HEAP_STRINGCACHE_NOCACHE_LIMIT);
if (use_cache) {
#if defined(DUK_USE_DEBUG_LEVEL) && (DUK_USE_DEBUG_LEVEL >= 2)
DUK_DDD(DUK_DDDPRINT("stringcache before char2byte (using cache):"));
for (i = 0; i < DUK_HEAP_STRCACHE_SIZE; i++) {
duk_strcache_entry *c = heap->strcache + i;
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