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[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / third_party / prometheus-cpp / 3rdparty / civetweb / src / third_party / duktape-1.8.0 / src / duktape.h
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TL		 1/*
2 * Duktape public API for Duktape 1.8.0.
3 *
4 * See the API reference for documentation on call semantics.
5 * The exposed API is inside the DUK_API_PUBLIC_H_INCLUDED
6 * include guard. Other parts of the header are Duktape
7 * internal and related to platform/compiler/feature detection.
8 *
9 * Git commit 0a70d7e4c5227c84e3fed5209828973117d02849 (v1.8.0).
10 * Git branch v1.8-maintenance.
11 *
12 * See Duktape AUTHORS.rst and LICENSE.txt for copyright and
13 * licensing information.
14 */
15
16/* LICENSE.txt */
17/*
18 * ===============
19 * Duktape license
20 * ===============
21 *
22 * (http://opensource.org/licenses/MIT)
23 *
24 * Copyright (c) 2013-2017 by Duktape authors (see AUTHORS.rst)
25 *
26 * Permission is hereby granted, free of charge, to any person obtaining a copy
27 * of this software and associated documentation files (the "Software"), to deal
28 * in the Software without restriction, including without limitation the rights
29 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
30 * copies of the Software, and to permit persons to whom the Software is
31 * furnished to do so, subject to the following conditions:
32 *
33 * The above copyright notice and this permission notice shall be included in
34 * all copies or substantial portions of the Software.
35 *
36 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
37 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
38 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
39 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
40 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
41 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
42 * THE SOFTWARE.
43 */
44
45/* AUTHORS.rst */
46/*
47 * ===============
48 * Duktape authors
49 * ===============
50 *
51 * Copyright
52 * =========
53 *
54 * Duktape copyrights are held by its authors. Each author has a copyright
55 * to their contribution, and agrees to irrevocably license the contribution
56 * under the Duktape ``LICENSE.txt``.
57 *
58 * Authors
59 * =======
60 *
61 * Please include an e-mail address, a link to your GitHub profile, or something
62 * similar to allow your contribution to be identified accurately.
63 *
64 * The following people have contributed code, website contents, or Wiki contents,
65 * and agreed to irrevocably license their contributions under the Duktape
66 * ``LICENSE.txt`` (in order of appearance):
67 *
68 * * Sami Vaarala <sami.vaarala@iki.fi>
69 * * Niki Dobrev
70 * * Andreas \u00d6man <andreas@lonelycoder.com>
71 * * L\u00e1szl\u00f3 Lang\u00f3 <llango.u-szeged@partner.samsung.com>
72 * * Legimet <legimet.calc@gmail.com>
73 * * Karl Skomski <karl@skomski.com>
74 * * Bruce Pascoe <fatcerberus1@gmail.com>
75 * * Ren\u00e9 Hollander <rene@rene8888.at>
76 * * Julien Hamaide (https://github.com/crazyjul)
77 * * Sebastian G\u00f6tte (https://github.com/jaseg)
78 *
79 * Other contributions
80 * ===================
81 *
82 * The following people have contributed something other than code (e.g. reported
83 * bugs, provided ideas, etc; roughly in order of appearance):
84 *
85 * * Greg Burns
86 * * Anthony Rabine
87 * * Carlos Costa
88 * * Aur\u00e9lien Bouilland
89 * * Preet Desai (Pris Matic)
90 * * judofyr (http://www.reddit.com/user/judofyr)
91 * * Jason Woofenden
92 * * Micha\u0142 Przyby\u015b
93 * * Anthony Howe
94 * * Conrad Pankoff
95 * * Jim Schimpf
96 * * Rajaran Gaunker (https://github.com/zimbabao)
97 * * Andreas \u00d6man
98 * * Doug Sanden
99 * * Josh Engebretson (https://github.com/JoshEngebretson)
100 * * Remo Eichenberger (https://github.com/remoe)
101 * * Mamod Mehyar (https://github.com/mamod)
102 * * David Demelier (https://github.com/markand)
103 * * Tim Caswell (https://github.com/creationix)
104 * * Mitchell Blank Jr (https://github.com/mitchblank)
105 * * https://github.com/yushli
106 * * Seo Sanghyeon (https://github.com/sanxiyn)
107 * * Han ChoongWoo (https://github.com/tunz)
108 * * Joshua Peek (https://github.com/josh)
109 * * Bruce E. Pascoe (https://github.com/fatcerberus)
110 * * https://github.com/Kelledin
111 * * https://github.com/sstruchtrup
112 * * Michael Drake (https://github.com/tlsa)
113 * * https://github.com/chris-y
114 * * Laurent Zubiaur (https://github.com/lzubiaur)
115 * * Ole Andr\u00e9 Vadla Ravn\u00e5s (https://github.com/oleavr)
116 *
117 * If you are accidentally missing from this list, send me an e-mail
118 * (``sami.vaarala@iki.fi``) and I'll fix the omission.
119 */
120
121#ifndef DUKTAPE_H_INCLUDED
122#define DUKTAPE_H_INCLUDED
123
124#define DUK_SINGLE_FILE
125
126/* External duk_config.h provides platform/compiler/OS dependent
127 * typedefs and macros, and DUK_USE_xxx config options so that
128 * the rest of Duktape doesn't need to do any feature detection.
129 */
130#include "duk_config.h"
131
132/*
133 * BEGIN PUBLIC API
134 */
135
136#ifndef DUK_API_PUBLIC_H_INCLUDED
137#define DUK_API_PUBLIC_H_INCLUDED
138
139/*
140 * Avoid C++ name mangling
141 */
142
143#ifdef __cplusplus
144extern "C" {
145#endif
146
147/*
148 * Some defines forwarded from feature detection
149 */
150
151#undef DUK_API_VARIADIC_MACROS
152#ifdef DUK_USE_VARIADIC_MACROS
153#define DUK_API_VARIADIC_MACROS
154#endif
155
156#define DUK_API_NORETURN(decl) DUK_NORETURN(decl)
157
158/*
159 * Public API specific typedefs
160 *
161 * Many types are wrapped by Duktape for portability to rare platforms
162 * where e.g. 'int' is a 16-bit type. See practical typing discussion
163 * in Duktape web documentation.
164 */
165
166struct duk_thread_state;
167struct duk_memory_functions;
168struct duk_function_list_entry;
169struct duk_number_list_entry;
170
171/* duk_context is now defined in duk_config.h because it may also be
172 * referenced there by prototypes.
173 */
174typedef struct duk_thread_state duk_thread_state;
175typedef struct duk_memory_functions duk_memory_functions;
176typedef struct duk_function_list_entry duk_function_list_entry;
177typedef struct duk_number_list_entry duk_number_list_entry;
178
179typedef duk_ret_t (*duk_c_function)(duk_context *ctx);
180typedef void *(*duk_alloc_function) (void *udata, duk_size_t size);
181typedef void *(*duk_realloc_function) (void *udata, void *ptr, duk_size_t size);
182typedef void (*duk_free_function) (void *udata, void *ptr);
183typedef void (*duk_fatal_function) (duk_context *ctx, duk_errcode_t code, const char *msg);
184typedef void (*duk_decode_char_function) (void *udata, duk_codepoint_t codepoint);
185typedef duk_codepoint_t (*duk_map_char_function) (void *udata, duk_codepoint_t codepoint);
186typedef duk_ret_t (*duk_safe_call_function) (duk_context *ctx);
187typedef duk_size_t (*duk_debug_read_function) (void *udata, char *buffer, duk_size_t length);
188typedef duk_size_t (*duk_debug_write_function) (void *udata, const char *buffer, duk_size_t length);
189typedef duk_size_t (*duk_debug_peek_function) (void *udata);
190typedef void (*duk_debug_read_flush_function) (void *udata);
191typedef void (*duk_debug_write_flush_function) (void *udata);
192typedef duk_idx_t (*duk_debug_request_function) (duk_context *ctx, void *udata, duk_idx_t nvalues);
193typedef void (*duk_debug_detached_function) (void *udata);
194
195struct duk_thread_state {
196 /* XXX: Enough space to hold internal suspend/resume structure.
197 * This is rather awkward and to be fixed when the internal
198 * structure is visible for the public API header.
199 */
200 char data[128];
201};
202
203struct duk_memory_functions {
204 duk_alloc_function alloc_func;
205 duk_realloc_function realloc_func;
206 duk_free_function free_func;
207 void *udata;
208};
209
210struct duk_function_list_entry {
211 const char *key;
212 duk_c_function value;
213 duk_idx_t nargs;
214};
215
216struct duk_number_list_entry {
217 const char *key;
218 duk_double_t value;
219};
220
221/*
222 * Constants
223 */
224
225/* Duktape version, (major * 10000) + (minor * 100) + patch. Allows C code
226 * to #ifdef against Duktape API version. The same value is also available
227 * to Ecmascript code in Duktape.version. Unofficial development snapshots
228 * have 99 for patch level (e.g. 0.10.99 would be a development version
229 * after 0.10.0 but before the next official release).
230 */
231#define DUK_VERSION 10800L
232
233/* Git commit, describe, and branch for Duktape build. Useful for
234 * non-official snapshot builds so that application code can easily log
235 * which Duktape snapshot was used. Not available in the Ecmascript
236 * environment.
237 */
238#define DUK_GIT_COMMIT "0a70d7e4c5227c84e3fed5209828973117d02849"
239#define DUK_GIT_DESCRIBE "v1.8.0"
240#define DUK_GIT_BRANCH "v1.8-maintenance"
241
242/* Duktape debug protocol version used by this build. */
243#define DUK_DEBUG_PROTOCOL_VERSION 1
244
245/* Used to represent invalid index; if caller uses this without checking,
246 * this index will map to a non-existent stack entry. Also used in some
247 * API calls as a marker to denote "no value".
248 */
249#define DUK_INVALID_INDEX DUK_IDX_MIN
250
251/* Indicates that a native function does not have a fixed number of args,
252 * and the argument stack should not be capped/extended at all.
253 */
254#define DUK_VARARGS ((duk_int_t) (-1))
255
256/* Number of value stack entries (in addition to actual call arguments)
257 * guaranteed to be allocated on entry to a Duktape/C function.
258 */
259#define DUK_API_ENTRY_STACK 64
260
261/* Value types, used by e.g. duk_get_type() */
262#define DUK_TYPE_MIN 0
263#define DUK_TYPE_NONE 0 /* no value, e.g. invalid index */
264#define DUK_TYPE_UNDEFINED 1 /* Ecmascript undefined */
265#define DUK_TYPE_NULL 2 /* Ecmascript null */
266#define DUK_TYPE_BOOLEAN 3 /* Ecmascript boolean: 0 or 1 */
267#define DUK_TYPE_NUMBER 4 /* Ecmascript number: double */
268#define DUK_TYPE_STRING 5 /* Ecmascript string: CESU-8 / extended UTF-8 encoded */
269#define DUK_TYPE_OBJECT 6 /* Ecmascript object: includes objects, arrays, functions, threads */
270#define DUK_TYPE_BUFFER 7 /* fixed or dynamic, garbage collected byte buffer */
271#define DUK_TYPE_POINTER 8 /* raw void pointer */
272#define DUK_TYPE_LIGHTFUNC 9 /* lightweight function pointer */
273#define DUK_TYPE_MAX 9
274
275/* Value mask types, used by e.g. duk_get_type_mask() */
276#define DUK_TYPE_MASK_NONE (1 << DUK_TYPE_NONE)
277#define DUK_TYPE_MASK_UNDEFINED (1 << DUK_TYPE_UNDEFINED)
278#define DUK_TYPE_MASK_NULL (1 << DUK_TYPE_NULL)
279#define DUK_TYPE_MASK_BOOLEAN (1 << DUK_TYPE_BOOLEAN)
280#define DUK_TYPE_MASK_NUMBER (1 << DUK_TYPE_NUMBER)
281#define DUK_TYPE_MASK_STRING (1 << DUK_TYPE_STRING)
282#define DUK_TYPE_MASK_OBJECT (1 << DUK_TYPE_OBJECT)
283#define DUK_TYPE_MASK_BUFFER (1 << DUK_TYPE_BUFFER)
284#define DUK_TYPE_MASK_POINTER (1 << DUK_TYPE_POINTER)
285#define DUK_TYPE_MASK_LIGHTFUNC (1 << DUK_TYPE_LIGHTFUNC)
286#define DUK_TYPE_MASK_THROW (1 << 10) /* internal flag value: throw if mask doesn't match */
287
288/* Coercion hints */
289#define DUK_HINT_NONE 0 /* prefer number, unless input is a Date, in which
290 * case prefer string (E5 Section 8.12.8)
291 */
292#define DUK_HINT_STRING 1 /* prefer string */
293#define DUK_HINT_NUMBER 2 /* prefer number */
294
295/* Enumeration flags for duk_enum() */
296#define DUK_ENUM_INCLUDE_NONENUMERABLE (1 << 0) /* enumerate non-numerable properties in addition to enumerable */
297#define DUK_ENUM_INCLUDE_INTERNAL (1 << 1) /* enumerate internal properties (regardless of enumerability) */
298#define DUK_ENUM_OWN_PROPERTIES_ONLY (1 << 2) /* don't walk prototype chain, only check own properties */
299#define DUK_ENUM_ARRAY_INDICES_ONLY (1 << 3) /* only enumerate array indices */
300#define DUK_ENUM_SORT_ARRAY_INDICES (1 << 4) /* sort array indices, use with DUK_ENUM_ARRAY_INDICES_ONLY */
301#define DUK_ENUM_NO_PROXY_BEHAVIOR (1 << 5) /* enumerate a proxy object itself without invoking proxy behavior */
302
303/* Compilation flags for duk_compile() and duk_eval() */
304/* DUK_COMPILE_xxx bits 0-2 are reserved for an internal 'nargs' argument
305 * (the nargs value passed is direct stack arguments + 1 to account for an
306 * internal extra argument).
307 */
308#define DUK_COMPILE_EVAL (1 << 3) /* compile eval code (instead of global code) */
309#define DUK_COMPILE_FUNCTION (1 << 4) /* compile function code (instead of global code) */
310#define DUK_COMPILE_STRICT (1 << 5) /* use strict (outer) context for global, eval, or function code */
311#define DUK_COMPILE_SAFE (1 << 6) /* (internal) catch compilation errors */
312#define DUK_COMPILE_NORESULT (1 << 7) /* (internal) omit eval result */
313#define DUK_COMPILE_NOSOURCE (1 << 8) /* (internal) no source string on stack */
314#define DUK_COMPILE_STRLEN (1 << 9) /* (internal) take strlen() of src_buffer (avoids double evaluation in macro) */
315#define DUK_COMPILE_NOFILENAME (1 << 10) /* (internal) no filename on stack */
316
317/* Flags for duk_def_prop() and its variants */
318#define DUK_DEFPROP_WRITABLE (1 << 0) /* set writable (effective if DUK_DEFPROP_HAVE_WRITABLE set) */
319#define DUK_DEFPROP_ENUMERABLE (1 << 1) /* set enumerable (effective if DUK_DEFPROP_HAVE_ENUMERABLE set) */
320#define DUK_DEFPROP_CONFIGURABLE (1 << 2) /* set configurable (effective if DUK_DEFPROP_HAVE_CONFIGURABLE set) */
321#define DUK_DEFPROP_HAVE_WRITABLE (1 << 3) /* set/clear writable */
322#define DUK_DEFPROP_HAVE_ENUMERABLE (1 << 4) /* set/clear enumerable */
323#define DUK_DEFPROP_HAVE_CONFIGURABLE (1 << 5) /* set/clear configurable */
324#define DUK_DEFPROP_HAVE_VALUE (1 << 6) /* set value (given on value stack) */
325#define DUK_DEFPROP_HAVE_GETTER (1 << 7) /* set getter (given on value stack) */
326#define DUK_DEFPROP_HAVE_SETTER (1 << 8) /* set setter (given on value stack) */
327#define DUK_DEFPROP_FORCE (1 << 9) /* force change if possible, may still fail for e.g. virtual properties */
328#define DUK_DEFPROP_SET_WRITABLE (DUK_DEFPROP_HAVE_WRITABLE | DUK_DEFPROP_WRITABLE)
329#define DUK_DEFPROP_CLEAR_WRITABLE DUK_DEFPROP_HAVE_WRITABLE
330#define DUK_DEFPROP_SET_ENUMERABLE (DUK_DEFPROP_HAVE_ENUMERABLE | DUK_DEFPROP_ENUMERABLE)
331#define DUK_DEFPROP_CLEAR_ENUMERABLE DUK_DEFPROP_HAVE_ENUMERABLE
332#define DUK_DEFPROP_SET_CONFIGURABLE (DUK_DEFPROP_HAVE_CONFIGURABLE | DUK_DEFPROP_CONFIGURABLE)
333#define DUK_DEFPROP_CLEAR_CONFIGURABLE DUK_DEFPROP_HAVE_CONFIGURABLE
334
335/* Flags for duk_push_thread_raw() */
336#define DUK_THREAD_NEW_GLOBAL_ENV (1 << 0) /* create a new global environment */
337
338/* Flags for duk_push_string_file_raw() */
339#define DUK_STRING_PUSH_SAFE (1 << 0) /* no error if file does not exist */
340
341/* Duktape specific error codes (must be 8 bits at most, see duk_error.h) */
342#define DUK_ERR_NONE 0 /* no error (e.g. from duk_get_error_code()) */
343#define DUK_ERR_UNIMPLEMENTED_ERROR 50 /* UnimplementedError */ /* XXX: replace with TypeError? */
344#define DUK_ERR_UNSUPPORTED_ERROR 51 /* UnsupportedError */ /* XXX: replace with TypeError? */
345#define DUK_ERR_INTERNAL_ERROR 52 /* InternalError */ /* XXX: replace with plain Error? */
346#define DUK_ERR_ALLOC_ERROR 53 /* AllocError */ /* XXX: replace with RangeError? */
347#define DUK_ERR_ASSERTION_ERROR 54 /* AssertionError */ /* XXX: to be removed? */
348#define DUK_ERR_API_ERROR 55 /* APIError */ /* XXX: replace with TypeError? */
349#define DUK_ERR_UNCAUGHT_ERROR 56 /* UncaughtError */ /* XXX: to be removed? */
350
351/* Ecmascript E5 specification error codes */
352#define DUK_ERR_ERROR 100 /* Error */
353#define DUK_ERR_EVAL_ERROR 101 /* EvalError */
354#define DUK_ERR_RANGE_ERROR 102 /* RangeError */
355#define DUK_ERR_REFERENCE_ERROR 103 /* ReferenceError */
356#define DUK_ERR_SYNTAX_ERROR 104 /* SyntaxError */
357#define DUK_ERR_TYPE_ERROR 105 /* TypeError */
358#define DUK_ERR_URI_ERROR 106 /* URIError */
359
360/* Return codes for C functions (shortcut for throwing an error) */
361#define DUK_RET_UNIMPLEMENTED_ERROR (-DUK_ERR_UNIMPLEMENTED_ERROR)
362#define DUK_RET_UNSUPPORTED_ERROR (-DUK_ERR_UNSUPPORTED_ERROR)
363#define DUK_RET_INTERNAL_ERROR (-DUK_ERR_INTERNAL_ERROR)
364#define DUK_RET_ALLOC_ERROR (-DUK_ERR_ALLOC_ERROR)
365#define DUK_RET_ASSERTION_ERROR (-DUK_ERR_ASSERTION_ERROR)
366#define DUK_RET_API_ERROR (-DUK_ERR_API_ERROR)
367#define DUK_RET_UNCAUGHT_ERROR (-DUK_ERR_UNCAUGHT_ERROR)
368#define DUK_RET_ERROR (-DUK_ERR_ERROR)
369#define DUK_RET_EVAL_ERROR (-DUK_ERR_EVAL_ERROR)
370#define DUK_RET_RANGE_ERROR (-DUK_ERR_RANGE_ERROR)
371#define DUK_RET_REFERENCE_ERROR (-DUK_ERR_REFERENCE_ERROR)
372#define DUK_RET_SYNTAX_ERROR (-DUK_ERR_SYNTAX_ERROR)
373#define DUK_RET_TYPE_ERROR (-DUK_ERR_TYPE_ERROR)
374#define DUK_RET_URI_ERROR (-DUK_ERR_URI_ERROR)
375
376/* Return codes for protected calls (duk_safe_call(), duk_pcall()) */
377#define DUK_EXEC_SUCCESS 0
378#define DUK_EXEC_ERROR 1
379
380/* Log levels */
381#define DUK_LOG_TRACE 0
382#define DUK_LOG_DEBUG 1
383#define DUK_LOG_INFO 2
384#define DUK_LOG_WARN 3
385#define DUK_LOG_ERROR 4
386#define DUK_LOG_FATAL 5
387
388/*
389 * If no variadic macros, __FILE__ and __LINE__ are passed through globals
390 * which is ugly and not thread safe.
391 */
392
393#ifndef DUK_API_VARIADIC_MACROS
394DUK_EXTERNAL_DECL const char *duk_api_global_filename;
395DUK_EXTERNAL_DECL duk_int_t duk_api_global_line;
396#endif
397
398/*
399 * Context management
400 */
401
402DUK_EXTERNAL_DECL
403duk_context *duk_create_heap(duk_alloc_function alloc_func,
404 duk_realloc_function realloc_func,
405 duk_free_function free_func,
406 void *heap_udata,
407 duk_fatal_function fatal_handler);
408DUK_EXTERNAL_DECL void duk_destroy_heap(duk_context *ctx);
409
410DUK_EXTERNAL_DECL void duk_suspend(duk_context *ctx, duk_thread_state *state);
411DUK_EXTERNAL_DECL void duk_resume(duk_context *ctx, const duk_thread_state *state);
412
413#define duk_create_heap_default() \
414 duk_create_heap(NULL, NULL, NULL, NULL, NULL)
415
416/*
417 * Memory management
418 *
419 * Raw functions have no side effects (cannot trigger GC).
420 */
421
422DUK_EXTERNAL_DECL void *duk_alloc_raw(duk_context *ctx, duk_size_t size);
423DUK_EXTERNAL_DECL void duk_free_raw(duk_context *ctx, void *ptr);
424DUK_EXTERNAL_DECL void *duk_realloc_raw(duk_context *ctx, void *ptr, duk_size_t size);
425DUK_EXTERNAL_DECL void *duk_alloc(duk_context *ctx, duk_size_t size);
426DUK_EXTERNAL_DECL void duk_free(duk_context *ctx, void *ptr);
427DUK_EXTERNAL_DECL void *duk_realloc(duk_context *ctx, void *ptr, duk_size_t size);
428DUK_EXTERNAL_DECL void duk_get_memory_functions(duk_context *ctx, duk_memory_functions *out_funcs);
429DUK_EXTERNAL_DECL void duk_gc(duk_context *ctx, duk_uint_t flags);
430
431/*
432 * Error handling
433 */
434
435DUK_API_NORETURN(DUK_EXTERNAL_DECL void duk_throw(duk_context *ctx));
436DUK_API_NORETURN(DUK_EXTERNAL_DECL void duk_fatal(duk_context *ctx, duk_errcode_t err_code, const char *err_msg));
437
438DUK_API_NORETURN(DUK_EXTERNAL_DECL void duk_error_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, ...));
439
440#ifdef DUK_API_VARIADIC_MACROS
441#define duk_error(ctx,err_code,...) \
442 duk_error_raw((ctx), (duk_errcode_t) (err_code), (const char *) (DUK_FILE_MACRO), (duk_int_t) (DUK_LINE_MACRO), __VA_ARGS__)
443#else
444DUK_API_NORETURN(DUK_EXTERNAL_DECL void duk_error_stash(duk_context *ctx, duk_errcode_t err_code, const char *fmt, ...));
445/* One problem with this macro is that expressions like the following fail
446 * to compile: "(void) duk_error(...)". But because duk_error() is noreturn,
447 * they make little sense anyway.
448 */
449#define duk_error \
450 (duk_api_global_filename = (const char *) (DUK_FILE_MACRO), \
451 duk_api_global_line = (duk_int_t) (DUK_LINE_MACRO), \
452 duk_error_stash) /* last value is func pointer, arguments follow in parens */
453#endif
454
455DUK_API_NORETURN(DUK_EXTERNAL_DECL void duk_error_va_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, va_list ap));
456#define duk_error_va(ctx,err_code,fmt,ap) \
457 duk_error_va_raw((ctx), (duk_errcode_t) (err_code), (const char *) (DUK_FILE_MACRO), (duk_int_t) (DUK_LINE_MACRO), (fmt), (ap))
458
459/*
460 * Other state related functions
461 */
462
463DUK_EXTERNAL_DECL duk_bool_t duk_is_strict_call(duk_context *ctx);
464DUK_EXTERNAL_DECL duk_bool_t duk_is_constructor_call(duk_context *ctx);
465
466/*
467 * Stack management
468 */
469
470DUK_EXTERNAL_DECL duk_idx_t duk_normalize_index(duk_context *ctx, duk_idx_t index);
471DUK_EXTERNAL_DECL duk_idx_t duk_require_normalize_index(duk_context *ctx, duk_idx_t index);
472DUK_EXTERNAL_DECL duk_bool_t duk_is_valid_index(duk_context *ctx, duk_idx_t index);
473DUK_EXTERNAL_DECL void duk_require_valid_index(duk_context *ctx, duk_idx_t index);
474
475DUK_EXTERNAL_DECL duk_idx_t duk_get_top(duk_context *ctx);
476DUK_EXTERNAL_DECL void duk_set_top(duk_context *ctx, duk_idx_t index);
477DUK_EXTERNAL_DECL duk_idx_t duk_get_top_index(duk_context *ctx);
478DUK_EXTERNAL_DECL duk_idx_t duk_require_top_index(duk_context *ctx);
479
480/* Although extra/top could be an unsigned type here, using a signed type
481 * makes the API more robust to calling code calculation errors or corner
482 * cases (where caller might occasionally come up with negative values).
483 * Negative values are treated as zero, which is better than casting them
484 * to a large unsigned number. (This principle is used elsewhere in the
485 * API too.)
486 */
487DUK_EXTERNAL_DECL duk_bool_t duk_check_stack(duk_context *ctx, duk_idx_t extra);
488DUK_EXTERNAL_DECL void duk_require_stack(duk_context *ctx, duk_idx_t extra);
489DUK_EXTERNAL_DECL duk_bool_t duk_check_stack_top(duk_context *ctx, duk_idx_t top);
490DUK_EXTERNAL_DECL void duk_require_stack_top(duk_context *ctx, duk_idx_t top);
491
492/*
493 * Stack manipulation (other than push/pop)
494 */
495
496DUK_EXTERNAL_DECL void duk_swap(duk_context *ctx, duk_idx_t index1, duk_idx_t index2);
497DUK_EXTERNAL_DECL void duk_swap_top(duk_context *ctx, duk_idx_t index);
498DUK_EXTERNAL_DECL void duk_dup(duk_context *ctx, duk_idx_t from_index);
499DUK_EXTERNAL_DECL void duk_dup_top(duk_context *ctx);
500DUK_EXTERNAL_DECL void duk_insert(duk_context *ctx, duk_idx_t to_index);
501DUK_EXTERNAL_DECL void duk_replace(duk_context *ctx, duk_idx_t to_index);
502DUK_EXTERNAL_DECL void duk_copy(duk_context *ctx, duk_idx_t from_index, duk_idx_t to_index);
503DUK_EXTERNAL_DECL void duk_remove(duk_context *ctx, duk_idx_t index);
504DUK_EXTERNAL_DECL void duk_xcopymove_raw(duk_context *to_ctx, duk_context *from_ctx, duk_idx_t count, duk_bool_t is_copy);
505
506#define duk_xmove_top(to_ctx,from_ctx,count) \
507 duk_xcopymove_raw((to_ctx), (from_ctx), (count), 0 /*is_copy*/)
508#define duk_xcopy_top(to_ctx,from_ctx,count) \
509 duk_xcopymove_raw((to_ctx), (from_ctx), (count), 1 /*is_copy*/)
510
511/*
512 * Push operations
513 *
514 * Push functions return the absolute (relative to bottom of frame)
515 * position of the pushed value for convenience.
516 *
517 * Note: duk_dup() is technically a push.
518 */
519
520DUK_EXTERNAL_DECL void duk_push_undefined(duk_context *ctx);
521DUK_EXTERNAL_DECL void duk_push_null(duk_context *ctx);
522DUK_EXTERNAL_DECL void duk_push_boolean(duk_context *ctx, duk_bool_t val);
523DUK_EXTERNAL_DECL void duk_push_true(duk_context *ctx);
524DUK_EXTERNAL_DECL void duk_push_false(duk_context *ctx);
525DUK_EXTERNAL_DECL void duk_push_number(duk_context *ctx, duk_double_t val);
526DUK_EXTERNAL_DECL void duk_push_nan(duk_context *ctx);
527DUK_EXTERNAL_DECL void duk_push_int(duk_context *ctx, duk_int_t val);
528DUK_EXTERNAL_DECL void duk_push_uint(duk_context *ctx, duk_uint_t val);
529DUK_EXTERNAL_DECL const char *duk_push_string(duk_context *ctx, const char *str);
530DUK_EXTERNAL_DECL const char *duk_push_lstring(duk_context *ctx, const char *str, duk_size_t len);
531DUK_EXTERNAL_DECL void duk_push_pointer(duk_context *ctx, void *p);
532DUK_EXTERNAL_DECL const char *duk_push_sprintf(duk_context *ctx, const char *fmt, ...);
533DUK_EXTERNAL_DECL const char *duk_push_vsprintf(duk_context *ctx, const char *fmt, va_list ap);
534
535DUK_EXTERNAL_DECL const char *duk_push_string_file_raw(duk_context *ctx, const char *path, duk_uint_t flags);
536#define duk_push_string_file(ctx,path) \
537 duk_push_string_file_raw((ctx), (path), 0)
538
539DUK_EXTERNAL_DECL void duk_push_this(duk_context *ctx);
540DUK_EXTERNAL_DECL void duk_push_current_function(duk_context *ctx);
541DUK_EXTERNAL_DECL void duk_push_current_thread(duk_context *ctx);
542DUK_EXTERNAL_DECL void duk_push_global_object(duk_context *ctx);
543DUK_EXTERNAL_DECL void duk_push_heap_stash(duk_context *ctx);
544DUK_EXTERNAL_DECL void duk_push_global_stash(duk_context *ctx);
545DUK_EXTERNAL_DECL void duk_push_thread_stash(duk_context *ctx, duk_context *target_ctx);
546
547DUK_EXTERNAL_DECL duk_idx_t duk_push_object(duk_context *ctx);
548DUK_EXTERNAL_DECL duk_idx_t duk_push_array(duk_context *ctx);
549DUK_EXTERNAL_DECL duk_idx_t duk_push_c_function(duk_context *ctx, duk_c_function func, duk_idx_t nargs);
550DUK_EXTERNAL_DECL duk_idx_t duk_push_c_lightfunc(duk_context *ctx, duk_c_function func, duk_idx_t nargs, duk_idx_t length, duk_int_t magic);
551DUK_EXTERNAL_DECL duk_idx_t duk_push_thread_raw(duk_context *ctx, duk_uint_t flags);
552
553#define duk_push_thread(ctx) \
554 duk_push_thread_raw((ctx), 0 /*flags*/)
555
556#define duk_push_thread_new_globalenv(ctx) \
557 duk_push_thread_raw((ctx), DUK_THREAD_NEW_GLOBAL_ENV /*flags*/)
558
559DUK_EXTERNAL_DECL duk_idx_t duk_push_error_object_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, ...);
560
561#ifdef DUK_API_VARIADIC_MACROS
562#define duk_push_error_object(ctx,err_code,...) \
563 duk_push_error_object_raw((ctx), (err_code), (const char *) (DUK_FILE_MACRO), (duk_int_t) (DUK_LINE_MACRO), __VA_ARGS__)
564#else
565DUK_EXTERNAL_DECL duk_idx_t duk_push_error_object_stash(duk_context *ctx, duk_errcode_t err_code, const char *fmt, ...);
566/* Note: parentheses are required so that the comma expression works in assignments. */
567#define duk_push_error_object \
568 (duk_api_global_filename = (const char *) (DUK_FILE_MACRO), \
569 duk_api_global_line = (duk_int_t) (DUK_LINE_MACRO), \
570 duk_push_error_object_stash) /* last value is func pointer, arguments follow in parens */
571#endif
572
573DUK_EXTERNAL_DECL duk_idx_t duk_push_error_object_va_raw(duk_context *ctx, duk_errcode_t err_code, const char *filename, duk_int_t line, const char *fmt, va_list ap);
574#define duk_push_error_object_va(ctx,err_code,fmt,ap) \
575 duk_push_error_object_va_raw((ctx), (err_code), (const char *) (DUK_FILE_MACRO), (duk_int_t) (DUK_LINE_MACRO), (fmt), (ap))
576
577#define DUK_BUF_FLAG_DYNAMIC (1 << 0) /* internal flag: dynamic buffer */
578#define DUK_BUF_FLAG_EXTERNAL (1 << 1) /* internal flag: external buffer */
579#define DUK_BUF_FLAG_NOZERO (1 << 2) /* internal flag: don't zero allocated buffer */
580
581DUK_EXTERNAL_DECL void *duk_push_buffer_raw(duk_context *ctx, duk_size_t size, duk_small_uint_t flags);
582
583#define duk_push_buffer(ctx,size,dynamic) \
584 duk_push_buffer_raw((ctx), (size), (dynamic) ? DUK_BUF_FLAG_DYNAMIC : 0)
585#define duk_push_fixed_buffer(ctx,size) \
586 duk_push_buffer_raw((ctx), (size), 0 /*flags*/)
587#define duk_push_dynamic_buffer(ctx,size) \
588 duk_push_buffer_raw((ctx), (size), DUK_BUF_FLAG_DYNAMIC /*flags*/)
589#define duk_push_external_buffer(ctx) \
590 ((void) duk_push_buffer_raw((ctx), 0, DUK_BUF_FLAG_DYNAMIC | DUK_BUF_FLAG_EXTERNAL))
591
592#define DUK_BUFOBJ_CREATE_ARRBUF (1 << 4) /* internal flag: create backing ArrayBuffer; keep in one byte */
593#define DUK_BUFOBJ_DUKTAPE_BUFFER 0
594#define DUK_BUFOBJ_NODEJS_BUFFER 1
595#define DUK_BUFOBJ_ARRAYBUFFER 2
596#define DUK_BUFOBJ_DATAVIEW (3 | DUK_BUFOBJ_CREATE_ARRBUF)
597#define DUK_BUFOBJ_INT8ARRAY (4 | DUK_BUFOBJ_CREATE_ARRBUF)
598#define DUK_BUFOBJ_UINT8ARRAY (5 | DUK_BUFOBJ_CREATE_ARRBUF)
599#define DUK_BUFOBJ_UINT8CLAMPEDARRAY (6 | DUK_BUFOBJ_CREATE_ARRBUF)
600#define DUK_BUFOBJ_INT16ARRAY (7 | DUK_BUFOBJ_CREATE_ARRBUF)
601#define DUK_BUFOBJ_UINT16ARRAY (8 | DUK_BUFOBJ_CREATE_ARRBUF)
602#define DUK_BUFOBJ_INT32ARRAY (9 | DUK_BUFOBJ_CREATE_ARRBUF)
603#define DUK_BUFOBJ_UINT32ARRAY (10 | DUK_BUFOBJ_CREATE_ARRBUF)
604#define DUK_BUFOBJ_FLOAT32ARRAY (11 | DUK_BUFOBJ_CREATE_ARRBUF)
605#define DUK_BUFOBJ_FLOAT64ARRAY (12 | DUK_BUFOBJ_CREATE_ARRBUF)
606
607DUK_EXTERNAL_DECL void duk_push_buffer_object(duk_context *ctx, duk_idx_t idx_buffer, duk_size_t byte_offset, duk_size_t byte_length, duk_uint_t flags);
608
609DUK_EXTERNAL_DECL duk_idx_t duk_push_heapptr(duk_context *ctx, void *ptr);
610
611/*
612 * Pop operations
613 */
614
615DUK_EXTERNAL_DECL void duk_pop(duk_context *ctx);
616DUK_EXTERNAL_DECL void duk_pop_n(duk_context *ctx, duk_idx_t count);
617DUK_EXTERNAL_DECL void duk_pop_2(duk_context *ctx);
618DUK_EXTERNAL_DECL void duk_pop_3(duk_context *ctx);
619
620/*
621 * Type checks
622 *
623 * duk_is_none(), which would indicate whether index it outside of stack,
624 * is not needed; duk_is_valid_index() gives the same information.
625 */
626
627DUK_EXTERNAL_DECL duk_int_t duk_get_type(duk_context *ctx, duk_idx_t index);
628DUK_EXTERNAL_DECL duk_bool_t duk_check_type(duk_context *ctx, duk_idx_t index, duk_int_t type);
629DUK_EXTERNAL_DECL duk_uint_t duk_get_type_mask(duk_context *ctx, duk_idx_t index);
630DUK_EXTERNAL_DECL duk_bool_t duk_check_type_mask(duk_context *ctx, duk_idx_t index, duk_uint_t mask);
631
632DUK_EXTERNAL_DECL duk_bool_t duk_is_undefined(duk_context *ctx, duk_idx_t index);
633DUK_EXTERNAL_DECL duk_bool_t duk_is_null(duk_context *ctx, duk_idx_t index);
634DUK_EXTERNAL_DECL duk_bool_t duk_is_null_or_undefined(duk_context *ctx, duk_idx_t index);
635DUK_EXTERNAL_DECL duk_bool_t duk_is_boolean(duk_context *ctx, duk_idx_t index);
636DUK_EXTERNAL_DECL duk_bool_t duk_is_number(duk_context *ctx, duk_idx_t index);
637DUK_EXTERNAL_DECL duk_bool_t duk_is_nan(duk_context *ctx, duk_idx_t index);
638DUK_EXTERNAL_DECL duk_bool_t duk_is_string(duk_context *ctx, duk_idx_t index);
639DUK_EXTERNAL_DECL duk_bool_t duk_is_object(duk_context *ctx, duk_idx_t index);
640DUK_EXTERNAL_DECL duk_bool_t duk_is_buffer(duk_context *ctx, duk_idx_t index);
641DUK_EXTERNAL_DECL duk_bool_t duk_is_buffer_data(duk_context *ctx, duk_idx_t idx);
642DUK_EXTERNAL_DECL duk_bool_t duk_is_pointer(duk_context *ctx, duk_idx_t index);
643DUK_EXTERNAL_DECL duk_bool_t duk_is_lightfunc(duk_context *ctx, duk_idx_t index);
644
645DUK_EXTERNAL_DECL duk_bool_t duk_is_array(duk_context *ctx, duk_idx_t index);
646DUK_EXTERNAL_DECL duk_bool_t duk_is_function(duk_context *ctx, duk_idx_t index);
647DUK_EXTERNAL_DECL duk_bool_t duk_is_c_function(duk_context *ctx, duk_idx_t index);
648DUK_EXTERNAL_DECL duk_bool_t duk_is_ecmascript_function(duk_context *ctx, duk_idx_t index);
649DUK_EXTERNAL_DECL duk_bool_t duk_is_bound_function(duk_context *ctx, duk_idx_t index);
650DUK_EXTERNAL_DECL duk_bool_t duk_is_thread(duk_context *ctx, duk_idx_t index);
651
652#define duk_is_callable(ctx,index) \
653 duk_is_function((ctx), (index))
654DUK_EXTERNAL_DECL duk_bool_t duk_is_dynamic_buffer(duk_context *ctx, duk_idx_t index);
655DUK_EXTERNAL_DECL duk_bool_t duk_is_fixed_buffer(duk_context *ctx, duk_idx_t index);
656DUK_EXTERNAL_DECL duk_bool_t duk_is_external_buffer(duk_context *ctx, duk_idx_t index);
657
658#define duk_is_primitive(ctx,index) \
659 duk_check_type_mask((ctx), (index), DUK_TYPE_MASK_UNDEFINED | \
660 DUK_TYPE_MASK_NULL | \
661 DUK_TYPE_MASK_BOOLEAN | \
662 DUK_TYPE_MASK_NUMBER | \
663 DUK_TYPE_MASK_STRING | \
664 DUK_TYPE_MASK_BUFFER | \
665 DUK_TYPE_MASK_POINTER | \
666 DUK_TYPE_MASK_LIGHTFUNC)
667
668#define duk_is_object_coercible(ctx,index) \
669 duk_check_type_mask((ctx), (index), DUK_TYPE_MASK_BOOLEAN | \
670 DUK_TYPE_MASK_NUMBER | \
671 DUK_TYPE_MASK_STRING | \
672 DUK_TYPE_MASK_OBJECT | \
673 DUK_TYPE_MASK_BUFFER | \
674 DUK_TYPE_MASK_POINTER | \
675 DUK_TYPE_MASK_LIGHTFUNC)
676
677DUK_EXTERNAL_DECL duk_errcode_t duk_get_error_code(duk_context *ctx, duk_idx_t index);
678#define duk_is_error(ctx,index) \
679 (duk_get_error_code((ctx), (index)) != 0)
680#define duk_is_eval_error(ctx,index) \
681 (duk_get_error_code((ctx), (index)) == DUK_ERR_EVAL_ERROR)
682#define duk_is_range_error(ctx,index) \
683 (duk_get_error_code((ctx), (index)) == DUK_ERR_RANGE_ERROR)
684#define duk_is_reference_error(ctx,index) \
685 (duk_get_error_code((ctx), (index)) == DUK_ERR_REFERENCE_ERROR)
686#define duk_is_syntax_error(ctx,index) \
687 (duk_get_error_code((ctx), (index)) == DUK_ERR_SYNTAX_ERROR)
688#define duk_is_type_error(ctx,index) \
689 (duk_get_error_code((ctx), (index)) == DUK_ERR_TYPE_ERROR)
690#define duk_is_uri_error(ctx,index) \
691 (duk_get_error_code((ctx), (index)) == DUK_ERR_URI_ERROR)
692
693/*
694 * Get operations: no coercion, returns default value for invalid
695 * indices and invalid value types.
696 *
697 * duk_get_undefined() and duk_get_null() would be pointless and
698 * are not included.
699 */
700
701DUK_EXTERNAL_DECL duk_bool_t duk_get_boolean(duk_context *ctx, duk_idx_t index);
702DUK_EXTERNAL_DECL duk_double_t duk_get_number(duk_context *ctx, duk_idx_t index);
703DUK_EXTERNAL_DECL duk_int_t duk_get_int(duk_context *ctx, duk_idx_t index);
704DUK_EXTERNAL_DECL duk_uint_t duk_get_uint(duk_context *ctx, duk_idx_t index);
705DUK_EXTERNAL_DECL const char *duk_get_string(duk_context *ctx, duk_idx_t index);
706DUK_EXTERNAL_DECL const char *duk_get_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len);
707DUK_EXTERNAL_DECL void *duk_get_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size);
708DUK_EXTERNAL_DECL void *duk_get_buffer_data(duk_context *ctx, duk_idx_t index, duk_size_t *out_size);
709DUK_EXTERNAL_DECL void *duk_get_pointer(duk_context *ctx, duk_idx_t index);
710DUK_EXTERNAL_DECL duk_c_function duk_get_c_function(duk_context *ctx, duk_idx_t index);
711DUK_EXTERNAL_DECL duk_context *duk_get_context(duk_context *ctx, duk_idx_t index);
712DUK_EXTERNAL_DECL void *duk_get_heapptr(duk_context *ctx, duk_idx_t index);
713DUK_EXTERNAL_DECL duk_size_t duk_get_length(duk_context *ctx, duk_idx_t index);
714
715/*
716 * Require operations: no coercion, throw error if index or type
717 * is incorrect. No defaulting.
718 */
719
720#define duk_require_type_mask(ctx,index,mask) \
721 ((void) duk_check_type_mask((ctx), (index), (mask) | DUK_TYPE_MASK_THROW))
722
723DUK_EXTERNAL_DECL void duk_require_undefined(duk_context *ctx, duk_idx_t index);
724DUK_EXTERNAL_DECL void duk_require_null(duk_context *ctx, duk_idx_t index);
725DUK_EXTERNAL_DECL duk_bool_t duk_require_boolean(duk_context *ctx, duk_idx_t index);
726DUK_EXTERNAL_DECL duk_double_t duk_require_number(duk_context *ctx, duk_idx_t index);
727DUK_EXTERNAL_DECL duk_int_t duk_require_int(duk_context *ctx, duk_idx_t index);
728DUK_EXTERNAL_DECL duk_uint_t duk_require_uint(duk_context *ctx, duk_idx_t index);
729DUK_EXTERNAL_DECL const char *duk_require_string(duk_context *ctx, duk_idx_t index);
730DUK_EXTERNAL_DECL const char *duk_require_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len);
731DUK_EXTERNAL_DECL void *duk_require_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size);
732DUK_EXTERNAL_DECL void *duk_require_buffer_data(duk_context *ctx, duk_idx_t index, duk_size_t *out_size);
733DUK_EXTERNAL_DECL void *duk_require_pointer(duk_context *ctx, duk_idx_t index);
734DUK_EXTERNAL_DECL duk_c_function duk_require_c_function(duk_context *ctx, duk_idx_t index);
735DUK_EXTERNAL_DECL duk_context *duk_require_context(duk_context *ctx, duk_idx_t index);
736DUK_EXTERNAL_DECL void duk_require_function(duk_context *ctx, duk_idx_t index);
737#define duk_require_callable(ctx,index) \
738 duk_require_function((ctx), (index))
739DUK_EXTERNAL_DECL void *duk_require_heapptr(duk_context *ctx, duk_idx_t index);
740
741#define duk_require_object_coercible(ctx,index) \
742 ((void) duk_check_type_mask((ctx), (index), DUK_TYPE_MASK_BOOLEAN | \
743 DUK_TYPE_MASK_NUMBER | \
744 DUK_TYPE_MASK_STRING | \
745 DUK_TYPE_MASK_OBJECT | \
746 DUK_TYPE_MASK_BUFFER | \
747 DUK_TYPE_MASK_POINTER | \
748 DUK_TYPE_MASK_LIGHTFUNC | \
749 DUK_TYPE_MASK_THROW))
750
751/*
752 * Coercion operations: in-place coercion, return coerced value where
753 * applicable. If index is invalid, throw error. Some coercions may
754 * throw an expected error (e.g. from a toString() or valueOf() call)
755 * or an internal error (e.g. from out of memory).
756 */
757
758DUK_EXTERNAL_DECL void duk_to_undefined(duk_context *ctx, duk_idx_t index);
759DUK_EXTERNAL_DECL void duk_to_null(duk_context *ctx, duk_idx_t index);
760DUK_EXTERNAL_DECL duk_bool_t duk_to_boolean(duk_context *ctx, duk_idx_t index);
761DUK_EXTERNAL_DECL duk_double_t duk_to_number(duk_context *ctx, duk_idx_t index);
762DUK_EXTERNAL_DECL duk_int_t duk_to_int(duk_context *ctx, duk_idx_t index);
763DUK_EXTERNAL_DECL duk_uint_t duk_to_uint(duk_context *ctx, duk_idx_t index);
764DUK_EXTERNAL_DECL duk_int32_t duk_to_int32(duk_context *ctx, duk_idx_t index);
765DUK_EXTERNAL_DECL duk_uint32_t duk_to_uint32(duk_context *ctx, duk_idx_t index);
766DUK_EXTERNAL_DECL duk_uint16_t duk_to_uint16(duk_context *ctx, duk_idx_t index);
767DUK_EXTERNAL_DECL const char *duk_to_string(duk_context *ctx, duk_idx_t index);
768DUK_EXTERNAL_DECL const char *duk_to_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len);
769DUK_EXTERNAL_DECL void *duk_to_buffer_raw(duk_context *ctx, duk_idx_t index, duk_size_t *out_size, duk_uint_t flags);
770DUK_EXTERNAL_DECL void *duk_to_pointer(duk_context *ctx, duk_idx_t index);
771DUK_EXTERNAL_DECL void duk_to_object(duk_context *ctx, duk_idx_t index);
772DUK_EXTERNAL_DECL void duk_to_defaultvalue(duk_context *ctx, duk_idx_t index, duk_int_t hint);
773DUK_EXTERNAL_DECL void duk_to_primitive(duk_context *ctx, duk_idx_t index, duk_int_t hint);
774
775#define DUK_BUF_MODE_FIXED 0 /* internal: request fixed buffer result */
776#define DUK_BUF_MODE_DYNAMIC 1 /* internal: request dynamic buffer result */
777#define DUK_BUF_MODE_DONTCARE 2 /* internal: don't care about fixed/dynamic nature */
778
779#define duk_to_buffer(ctx,index,out_size) \
780 duk_to_buffer_raw((ctx), (index), (out_size), DUK_BUF_MODE_DONTCARE)
781#define duk_to_fixed_buffer(ctx,index,out_size) \
782 duk_to_buffer_raw((ctx), (index), (out_size), DUK_BUF_MODE_FIXED)
783#define duk_to_dynamic_buffer(ctx,index,out_size) \
784 duk_to_buffer_raw((ctx), (index), (out_size), DUK_BUF_MODE_DYNAMIC)
785
786/* safe variants of a few coercion operations */
787DUK_EXTERNAL_DECL const char *duk_safe_to_lstring(duk_context *ctx, duk_idx_t index, duk_size_t *out_len);
788#define duk_safe_to_string(ctx,index) \
789 duk_safe_to_lstring((ctx), (index), NULL)
790
791/*
792 * Misc conversion
793 */
794
795DUK_EXTERNAL_DECL const char *duk_base64_encode(duk_context *ctx, duk_idx_t index);
796DUK_EXTERNAL_DECL void duk_base64_decode(duk_context *ctx, duk_idx_t index);
797DUK_EXTERNAL_DECL const char *duk_hex_encode(duk_context *ctx, duk_idx_t index);
798DUK_EXTERNAL_DECL void duk_hex_decode(duk_context *ctx, duk_idx_t index);
799DUK_EXTERNAL_DECL const char *duk_json_encode(duk_context *ctx, duk_idx_t index);
800DUK_EXTERNAL_DECL void duk_json_decode(duk_context *ctx, duk_idx_t index);
801
802/*
803 * Buffer
804 */
805
806DUK_EXTERNAL_DECL void *duk_resize_buffer(duk_context *ctx, duk_idx_t index, duk_size_t new_size);
807DUK_EXTERNAL_DECL void *duk_steal_buffer(duk_context *ctx, duk_idx_t index, duk_size_t *out_size);
808DUK_EXTERNAL_DECL void duk_config_buffer(duk_context *ctx, duk_idx_t index, void *ptr, duk_size_t len);
809
810/*
811 * Property access
812 *
813 * The basic function assumes key is on stack. The _string variant takes
814 * a C string as a property name, while the _index variant takes an array
815 * index as a property name (e.g. 123 is equivalent to the key "123").
816 */
817
818DUK_EXTERNAL_DECL duk_bool_t duk_get_prop(duk_context *ctx, duk_idx_t obj_index);
819DUK_EXTERNAL_DECL duk_bool_t duk_get_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key);
820DUK_EXTERNAL_DECL duk_bool_t duk_get_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index);
821DUK_EXTERNAL_DECL duk_bool_t duk_put_prop(duk_context *ctx, duk_idx_t obj_index);
822DUK_EXTERNAL_DECL duk_bool_t duk_put_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key);
823DUK_EXTERNAL_DECL duk_bool_t duk_put_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index);
824DUK_EXTERNAL_DECL duk_bool_t duk_del_prop(duk_context *ctx, duk_idx_t obj_index);
825DUK_EXTERNAL_DECL duk_bool_t duk_del_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key);
826DUK_EXTERNAL_DECL duk_bool_t duk_del_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index);
827DUK_EXTERNAL_DECL duk_bool_t duk_has_prop(duk_context *ctx, duk_idx_t obj_index);
828DUK_EXTERNAL_DECL duk_bool_t duk_has_prop_string(duk_context *ctx, duk_idx_t obj_index, const char *key);
829DUK_EXTERNAL_DECL duk_bool_t duk_has_prop_index(duk_context *ctx, duk_idx_t obj_index, duk_uarridx_t arr_index);
830DUK_EXTERNAL_DECL void duk_def_prop(duk_context *ctx, duk_idx_t obj_index, duk_uint_t flags);
831
832DUK_EXTERNAL_DECL duk_bool_t duk_get_global_string(duk_context *ctx, const char *key);
833DUK_EXTERNAL_DECL duk_bool_t duk_put_global_string(duk_context *ctx, const char *key);
834
835/*
836 * Object prototype
837 */
838
839DUK_EXTERNAL_DECL void duk_get_prototype(duk_context *ctx, duk_idx_t index);
840DUK_EXTERNAL_DECL void duk_set_prototype(duk_context *ctx, duk_idx_t index);
841
842/*
843 * Object finalizer
844 */
845
846DUK_EXTERNAL_DECL void duk_get_finalizer(duk_context *ctx, duk_idx_t index);
847DUK_EXTERNAL_DECL void duk_set_finalizer(duk_context *ctx, duk_idx_t index);
848
849/*
850 * Global object
851 */
852
853DUK_EXTERNAL_DECL void duk_set_global_object(duk_context *ctx);
854
855/*
856 * Duktape/C function magic value
857 */
858
859DUK_EXTERNAL_DECL duk_int_t duk_get_magic(duk_context *ctx, duk_idx_t index);
860DUK_EXTERNAL_DECL void duk_set_magic(duk_context *ctx, duk_idx_t index, duk_int_t magic);
861DUK_EXTERNAL_DECL duk_int_t duk_get_current_magic(duk_context *ctx);
862
863/*
864 * Module helpers: put multiple function or constant properties
865 */
866
867DUK_EXTERNAL_DECL void duk_put_function_list(duk_context *ctx, duk_idx_t obj_index, const duk_function_list_entry *funcs);
868DUK_EXTERNAL_DECL void duk_put_number_list(duk_context *ctx, duk_idx_t obj_index, const duk_number_list_entry *numbers);
869
870/*
871 * Variable access
872 */
873
874/* XXX: These calls are incomplete and not usable now. They are not (yet)
875 * part of the public API.
876 */
877DUK_EXTERNAL_DECL void duk_get_var(duk_context *ctx);
878DUK_EXTERNAL_DECL void duk_put_var(duk_context *ctx);
879DUK_EXTERNAL_DECL duk_bool_t duk_del_var(duk_context *ctx);
880DUK_EXTERNAL_DECL duk_bool_t duk_has_var(duk_context *ctx);
881
882/*
883 * Object operations
884 */
885
886DUK_EXTERNAL_DECL void duk_compact(duk_context *ctx, duk_idx_t obj_index);
887DUK_EXTERNAL_DECL void duk_enum(duk_context *ctx, duk_idx_t obj_index, duk_uint_t enum_flags);
888DUK_EXTERNAL_DECL duk_bool_t duk_next(duk_context *ctx, duk_idx_t enum_index, duk_bool_t get_value);
889
890/*
891 * String manipulation
892 */
893
894DUK_EXTERNAL_DECL void duk_concat(duk_context *ctx, duk_idx_t count);
895DUK_EXTERNAL_DECL void duk_join(duk_context *ctx, duk_idx_t count);
896DUK_EXTERNAL_DECL void duk_decode_string(duk_context *ctx, duk_idx_t index, duk_decode_char_function callback, void *udata);
897DUK_EXTERNAL_DECL void duk_map_string(duk_context *ctx, duk_idx_t index, duk_map_char_function callback, void *udata);
898DUK_EXTERNAL_DECL void duk_substring(duk_context *ctx, duk_idx_t index, duk_size_t start_char_offset, duk_size_t end_char_offset);
899DUK_EXTERNAL_DECL void duk_trim(duk_context *ctx, duk_idx_t index);
900DUK_EXTERNAL_DECL duk_codepoint_t duk_char_code_at(duk_context *ctx, duk_idx_t index, duk_size_t char_offset);
901
902/*
903 * Ecmascript operators
904 */
905
906DUK_EXTERNAL_DECL duk_bool_t duk_equals(duk_context *ctx, duk_idx_t index1, duk_idx_t index2);
907DUK_EXTERNAL_DECL duk_bool_t duk_strict_equals(duk_context *ctx, duk_idx_t index1, duk_idx_t index2);
908DUK_EXTERNAL_DECL duk_bool_t duk_instanceof(duk_context *ctx, duk_idx_t index1, duk_idx_t index2);
909
910/*
911 * Function (method) calls
912 */
913
914DUK_EXTERNAL_DECL void duk_call(duk_context *ctx, duk_idx_t nargs);
915DUK_EXTERNAL_DECL void duk_call_method(duk_context *ctx, duk_idx_t nargs);
916DUK_EXTERNAL_DECL void duk_call_prop(duk_context *ctx, duk_idx_t obj_index, duk_idx_t nargs);
917DUK_EXTERNAL_DECL duk_int_t duk_pcall(duk_context *ctx, duk_idx_t nargs);
918DUK_EXTERNAL_DECL duk_int_t duk_pcall_method(duk_context *ctx, duk_idx_t nargs);
919DUK_EXTERNAL_DECL duk_int_t duk_pcall_prop(duk_context *ctx, duk_idx_t obj_index, duk_idx_t nargs);
920DUK_EXTERNAL_DECL void duk_new(duk_context *ctx, duk_idx_t nargs);
921DUK_EXTERNAL_DECL duk_int_t duk_pnew(duk_context *ctx, duk_idx_t nargs);
922DUK_EXTERNAL_DECL duk_int_t duk_safe_call(duk_context *ctx, duk_safe_call_function func, duk_idx_t nargs, duk_idx_t nrets);
923
924/*
925 * Thread management
926 */
927
928/* There are currently no native functions to yield/resume, due to the internal
929 * limitations on coroutine handling. These will be added later.
930 */
931
932/*
933 * Compilation and evaluation
934 */
935
936DUK_EXTERNAL_DECL duk_int_t duk_eval_raw(duk_context *ctx, const char *src_buffer, duk_size_t src_length, duk_uint_t flags);
937DUK_EXTERNAL_DECL duk_int_t duk_compile_raw(duk_context *ctx, const char *src_buffer, duk_size_t src_length, duk_uint_t flags);
938
939/* plain */
940#define duk_eval(ctx) \
941 ((void) duk_eval_raw((ctx), NULL, 0, 2 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NOFILENAME))
942
943#define duk_eval_noresult(ctx) \
944 ((void) duk_eval_raw((ctx), NULL, 0, 2 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NORESULT | DUK_COMPILE_NOFILENAME))
945
946#define duk_peval(ctx) \
947 (duk_eval_raw((ctx), NULL, 0, 2 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_SAFE | DUK_COMPILE_NOFILENAME))
948
949#define duk_peval_noresult(ctx) \
950 (duk_eval_raw((ctx), NULL, 0, 2 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_SAFE | DUK_COMPILE_NORESULT | DUK_COMPILE_NOFILENAME))
951
952#define duk_compile(ctx,flags) \
953 ((void) duk_compile_raw((ctx), NULL, 0, 3 /*args*/ | (flags)))
954
955#define duk_pcompile(ctx,flags) \
956 (duk_compile_raw((ctx), NULL, 0, 3 /*args*/ | (flags) | DUK_COMPILE_SAFE))
957
958/* string */
959#define duk_eval_string(ctx,src) \
960 ((void) duk_eval_raw((ctx), (src), 0, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN | DUK_COMPILE_NOFILENAME))
961
962#define duk_eval_string_noresult(ctx,src) \
963 ((void) duk_eval_raw((ctx), (src), 0, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN | DUK_COMPILE_NORESULT | DUK_COMPILE_NOFILENAME))
964
965#define duk_peval_string(ctx,src) \
966 (duk_eval_raw((ctx), (src), 0, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_SAFE | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN | DUK_COMPILE_NOFILENAME))
967
968#define duk_peval_string_noresult(ctx,src) \
969 (duk_eval_raw((ctx), (src), 0, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_SAFE | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN | DUK_COMPILE_NORESULT | DUK_COMPILE_NOFILENAME))
970
971#define duk_compile_string(ctx,flags,src) \
972 ((void) duk_compile_raw((ctx), (src), 0, 1 /*args*/ | (flags) | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN | DUK_COMPILE_NOFILENAME))
973
974#define duk_compile_string_filename(ctx,flags,src) \
975 ((void) duk_compile_raw((ctx), (src), 0, 2 /*args*/ | (flags) | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN))
976
977#define duk_pcompile_string(ctx,flags,src) \
978 (duk_compile_raw((ctx), (src), 0, 1 /*args*/ | (flags) | DUK_COMPILE_SAFE | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN | DUK_COMPILE_NOFILENAME))
979
980#define duk_pcompile_string_filename(ctx,flags,src) \
981 (duk_compile_raw((ctx), (src), 0, 2 /*args*/ | (flags) | DUK_COMPILE_SAFE | DUK_COMPILE_NOSOURCE | DUK_COMPILE_STRLEN))
982
983/* lstring */
984#define duk_eval_lstring(ctx,buf,len) \
985 ((void) duk_eval_raw((ctx), buf, len, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NOSOURCE | DUK_COMPILE_NOFILENAME))
986
987#define duk_eval_lstring_noresult(ctx,buf,len) \
988 ((void) duk_eval_raw((ctx), buf, len, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NOSOURCE | DUK_COMPILE_NORESULT | DUK_COMPILE_NOFILENAME))
989
990#define duk_peval_lstring(ctx,buf,len) \
991 (duk_eval_raw((ctx), buf, len, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NOSOURCE | DUK_COMPILE_SAFE | DUK_COMPILE_NOFILENAME))
992
993#define duk_peval_lstring_noresult(ctx,buf,len) \
994 (duk_eval_raw((ctx), buf, len, 1 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_SAFE | DUK_COMPILE_NOSOURCE | DUK_COMPILE_NORESULT | DUK_COMPILE_NOFILENAME))
995
996#define duk_compile_lstring(ctx,flags,buf,len) \
997 ((void) duk_compile_raw((ctx), buf, len, 1 /*args*/ | (flags) | DUK_COMPILE_NOSOURCE | DUK_COMPILE_NOFILENAME))
998
999#define duk_compile_lstring_filename(ctx,flags,buf,len) \
1000 ((void) duk_compile_raw((ctx), buf, len, 2 /*args*/ | (flags) | DUK_COMPILE_NOSOURCE))
1001
1002#define duk_pcompile_lstring(ctx,flags,buf,len) \
1003 (duk_compile_raw((ctx), buf, len, 1 /*args*/ | (flags) | DUK_COMPILE_SAFE | DUK_COMPILE_NOSOURCE | DUK_COMPILE_NOFILENAME))
1004
1005#define duk_pcompile_lstring_filename(ctx,flags,buf,len) \
1006 (duk_compile_raw((ctx), buf, len, 2 /*args*/ | (flags) | DUK_COMPILE_SAFE | DUK_COMPILE_NOSOURCE))
1007
1008/* file */
1009#define duk_eval_file(ctx,path) \
1010 ((void) duk_push_string_file_raw((ctx), (path), 0), \
1011 (void) duk_push_string((ctx), (path)), \
1012 (void) duk_eval_raw((ctx), NULL, 0, 3 /*args*/ | DUK_COMPILE_EVAL))
1013
1014#define duk_eval_file_noresult(ctx,path) \
1015 ((void) duk_push_string_file_raw((ctx), (path), 0), \
1016 (void) duk_push_string((ctx), (path)), \
1017 (void) duk_eval_raw((ctx), NULL, 0, 3 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_NORESULT))
1018
1019#define duk_peval_file(ctx,path) \
1020 ((void) duk_push_string_file_raw((ctx), (path), DUK_STRING_PUSH_SAFE), \
1021 (void) duk_push_string((ctx), (path)), \
1022 duk_eval_raw((ctx), NULL, 0, 3 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_SAFE))
1023
1024#define duk_peval_file_noresult(ctx,path) \
1025 ((void) duk_push_string_file_raw((ctx), (path), DUK_STRING_PUSH_SAFE), \
1026 (void) duk_push_string((ctx), (path)), \
1027 duk_eval_raw((ctx), NULL, 0, 3 /*args*/ | DUK_COMPILE_EVAL | DUK_COMPILE_SAFE | DUK_COMPILE_NORESULT))
1028
1029#define duk_compile_file(ctx,flags,path) \
1030 ((void) duk_push_string_file_raw((ctx), (path), 0), \
1031 (void) duk_push_string((ctx), (path)), \
1032 (void) duk_compile_raw((ctx), NULL, 0, 3 /*args*/ | (flags)))
1033
1034#define duk_pcompile_file(ctx,flags,path) \
1035 ((void) duk_push_string_file_raw((ctx), (path), DUK_STRING_PUSH_SAFE), \
1036 (void) duk_push_string((ctx), (path)), \
1037 duk_compile_raw((ctx), NULL, 0, 3 /*args*/ | (flags) | DUK_COMPILE_SAFE))
1038
1039/*
1040 * Bytecode load/dump
1041 */
1042
1043DUK_EXTERNAL_DECL void duk_dump_function(duk_context *ctx);
1044DUK_EXTERNAL_DECL void duk_load_function(duk_context *ctx);
1045
1046/*
1047 * Logging
1048 */
1049
1050DUK_EXTERNAL_DECL void duk_log(duk_context *ctx, duk_int_t level, const char *fmt, ...);
1051DUK_EXTERNAL_DECL void duk_log_va(duk_context *ctx, duk_int_t level, const char *fmt, va_list ap);
1052
1053/*
1054 * Debugging
1055 */
1056
1057DUK_EXTERNAL_DECL void duk_push_context_dump(duk_context *ctx);
1058
1059#if defined(DUK_USE_FILE_IO)
1060/* internal use */
1061#define duk_dump_context_filehandle(ctx,fh) \
1062 (duk_push_context_dump((ctx)), \
1063 DUK_FPRINTF((fh), "%s\n", duk_safe_to_string(ctx, -1)), \
1064 duk_pop(ctx))
1065
1066/* external use */
1067#define duk_dump_context_stdout(ctx) \
1068 duk_dump_context_filehandle((ctx), DUK_STDOUT)
1069#define duk_dump_context_stderr(ctx) \
1070 duk_dump_context_filehandle((ctx), DUK_STDERR)
1071#else /* DUK_USE_FILE_IO */
1072#define duk_dump_context_stdout(ctx) ((void) 0)
1073#define duk_dump_context_stderr(ctx) ((void) 0)
1074#endif /* DUK_USE_FILE_IO */
1075
1076/*
1077 * Debugger (debug protocol)
1078 */
1079
1080#define duk_debugger_attach(ctx,read_cb,write_cb,peek_cb,read_flush_cb,write_flush_cb,detached_cb,udata) \
1081 duk_debugger_attach_custom((ctx), (read_cb), (write_cb), (peek_cb), (read_flush_cb), (write_flush_cb), \
1082 NULL, (detached_cb), (udata))
1083
1084DUK_EXTERNAL_DECL void duk_debugger_attach_custom(duk_context *ctx,
1085 duk_debug_read_function read_cb,
1086 duk_debug_write_function write_cb,
1087 duk_debug_peek_function peek_cb,
1088 duk_debug_read_flush_function read_flush_cb,
1089 duk_debug_write_flush_function write_flush_cb,
1090 duk_debug_request_function request_cb,
1091 duk_debug_detached_function detached_cb,
1092 void *udata);
1093DUK_EXTERNAL_DECL void duk_debugger_detach(duk_context *ctx);
1094DUK_EXTERNAL_DECL void duk_debugger_cooperate(duk_context *ctx);
1095DUK_EXTERNAL_DECL duk_bool_t duk_debugger_notify(duk_context *ctx, duk_idx_t nvalues);
1096DUK_EXTERNAL_DECL void duk_debugger_pause(duk_context *ctx);
1097
1098/*
1099 * Date provider related constants
1100 *
1101 * NOTE: These are "semi public" - you should only use these if you write
1102 * your own platform specific Date provider, see doc/datetime.rst.
1103 */
1104
1105/* Millisecond count constants. */
1106#define DUK_DATE_MSEC_SECOND 1000L
1107#define DUK_DATE_MSEC_MINUTE (60L * 1000L)
1108#define DUK_DATE_MSEC_HOUR (60L * 60L * 1000L)
1109#define DUK_DATE_MSEC_DAY (24L * 60L * 60L * 1000L)
1110
1111/* Ecmascript date range is 100 million days from Epoch:
1112 * > 100e6 * 24 * 60 * 60 * 1000 // 100M days in millisecs
1113 * 8640000000000000
1114 * (= 8.64e15)
1115 */
1116#define DUK_DATE_MSEC_100M_DAYS (8.64e15)
1117#define DUK_DATE_MSEC_100M_DAYS_LEEWAY (8.64e15 + 24 * 3600e3)
1118
1119/* Ecmascript year range:
1120 * > new Date(100e6 * 24 * 3600e3).toISOString()
1121 * '+275760-09-13T00:00:00.000Z'
1122 * > new Date(-100e6 * 24 * 3600e3).toISOString()
1123 * '-271821-04-20T00:00:00.000Z'
1124 */
1125#define DUK_DATE_MIN_ECMA_YEAR (-271821L)
1126#define DUK_DATE_MAX_ECMA_YEAR 275760L
1127
1128/* Part indices for internal breakdowns. Part order from DUK_DATE_IDX_YEAR
1129 * to DUK_DATE_IDX_MILLISECOND matches argument ordering of Ecmascript API
1130 * calls (like Date constructor call). Some functions in duk_bi_date.c
1131 * depend on the specific ordering, so change with care. 16 bits are not
1132 * enough for all parts (year, specifically).
1133 *
1134 * (Must be in-sync with genbuiltins.py.)
1135 */
1136#define DUK_DATE_IDX_YEAR 0 /* year */
1137#define DUK_DATE_IDX_MONTH 1 /* month: 0 to 11 */
1138#define DUK_DATE_IDX_DAY 2 /* day within month: 0 to 30 */
1139#define DUK_DATE_IDX_HOUR 3
1140#define DUK_DATE_IDX_MINUTE 4
1141#define DUK_DATE_IDX_SECOND 5
1142#define DUK_DATE_IDX_MILLISECOND 6
1143#define DUK_DATE_IDX_WEEKDAY 7 /* weekday: 0 to 6, 0=sunday, 1=monday, etc */
1144#define DUK_DATE_IDX_NUM_PARTS 8
1145
1146/* Internal API call flags, used for various functions in this file.
1147 * Certain flags are used by only certain functions, but since the flags
1148 * don't overlap, a single flags value can be passed around to multiple
1149 * functions.
1150 *
1151 * The unused top bits of the flags field are also used to pass values
1152 * to helpers (duk__get_part_helper() and duk__set_part_helper()).
1153 *
1154 * (Must be in-sync with genbuiltins.py.)
1155 */
1156
1157/* NOTE: when writing a Date provider you only need a few specific
1158 * flags from here, the rest are internal. Avoid using anything you
1159 * don't need.
1160 */
1161
1162#define DUK_DATE_FLAG_NAN_TO_ZERO (1 << 0) /* timeval breakdown: internal time value NaN -> zero */
1163#define DUK_DATE_FLAG_NAN_TO_RANGE_ERROR (1 << 1) /* timeval breakdown: internal time value NaN -> RangeError (toISOString) */
1164#define DUK_DATE_FLAG_ONEBASED (1 << 2) /* timeval breakdown: convert month and day-of-month parts to one-based (default is zero-based) */
1165#define DUK_DATE_FLAG_EQUIVYEAR (1 << 3) /* timeval breakdown: replace year with equivalent year in the [1971,2037] range for DST calculations */
1166#define DUK_DATE_FLAG_LOCALTIME (1 << 4) /* convert time value to local time */
1167#define DUK_DATE_FLAG_SUB1900 (1 << 5) /* getter: subtract 1900 from year when getting year part */
1168#define DUK_DATE_FLAG_TOSTRING_DATE (1 << 6) /* include date part in string conversion result */
1169#define DUK_DATE_FLAG_TOSTRING_TIME (1 << 7) /* include time part in string conversion result */
1170#define DUK_DATE_FLAG_TOSTRING_LOCALE (1 << 8) /* use locale specific formatting if available */
1171#define DUK_DATE_FLAG_TIMESETTER (1 << 9) /* setter: call is a time setter (affects hour, min, sec, ms); otherwise date setter (affects year, month, day-in-month) */
1172#define DUK_DATE_FLAG_YEAR_FIXUP (1 << 10) /* setter: perform 2-digit year fixup (00...99 -> 1900...1999) */
1173#define DUK_DATE_FLAG_SEP_T (1 << 11) /* string conversion: use 'T' instead of ' ' as a separator */
1174#define DUK_DATE_FLAG_VALUE_SHIFT 12 /* additional values begin at bit 12 */
1175
1176/*
1177 * ROM pointer compression
1178 */
1179
1180/* Support array for ROM pointer compression. Only declared when ROM
1181 * pointer compression is active.
1182 */
1183#if defined(DUK_USE_ROM_OBJECTS) && defined(DUK_USE_HEAPPTR16)
1184DUK_EXTERNAL_DECL const void * const duk_rom_compressed_pointers[];
1185#endif
1186
1187/*
1188 * C++ name mangling
1189 */
1190
1191#ifdef __cplusplus
1192/* end 'extern "C"' wrapper */
1193}
1194#endif
1195
1196#endif /* DUK_API_PUBLIC_H_INCLUDED */
1197
1198/*
1199 * END PUBLIC API
1200 */
1201
1202/*
1203 * Union to access IEEE double memory representation, indexes for double
1204 * memory representation, and some macros for double manipulation.
1205 *
1206 * Also used by packed duk_tval. Use a union for bit manipulation to
1207 * minimize aliasing issues in practice. The C99 standard does not
1208 * guarantee that this should work, but it's a very widely supported
1209 * practice for low level manipulation.
1210 *
1211 * IEEE double format summary:
1212 *
1213 * seeeeeee eeeeffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff
1214 * A B C D E F G H
1215 *
1216 * s sign bit
1217 * eee... exponent field
1218 * fff... fraction
1219 *
1220 * See http://en.wikipedia.org/wiki/Double_precision_floating-point_format.
1221 *
1222 * NaNs are represented as exponent 0x7ff and mantissa != 0. The NaN is a
1223 * signaling NaN when the highest bit of the mantissa is zero, and a quiet
1224 * NaN when the highest bit is set.
1225 *
1226 * At least three memory layouts are relevant here:
1227 *
1228 * A B C D E F G H Big endian (e.g. 68k) DUK_USE_DOUBLE_BE
1229 * H G F E D C B A Little endian (e.g. x86) DUK_USE_DOUBLE_LE
1230 * D C B A H G F E Mixed/cross endian (e.g. ARM) DUK_USE_DOUBLE_ME
1231 *
1232 * ARM is a special case: ARM double values are in mixed/cross endian
1233 * format while ARM duk_uint64_t values are in standard little endian
1234 * format (H G F E D C B A). When a double is read as a duk_uint64_t
1235 * from memory, the register will contain the (logical) value
1236 * E F G H A B C D. This requires some special handling below.
1237 *
1238 * Indexes of various types (8-bit, 16-bit, 32-bit) in memory relative to
1239 * the logical (big endian) order:
1240 *
1241 * byte order duk_uint8_t duk_uint16_t duk_uint32_t
1242 * BE 01234567 0123 01
1243 * LE 76543210 3210 10
1244 * ME (ARM) 32107654 1032 01
1245 *
1246 * Some processors may alter NaN values in a floating point load+store.
1247 * For instance, on X86 a FLD + FSTP may convert a signaling NaN to a
1248 * quiet one. This is catastrophic when NaN space is used in packed
1249 * duk_tval values. See: misc/clang_aliasing.c.
1250 */
1251
1252#ifndef DUK_DBLUNION_H_INCLUDED
1253#define DUK_DBLUNION_H_INCLUDED
1254
1255/*
1256 * Union for accessing double parts, also serves as packed duk_tval
1257 */
1258
1259union duk_double_union {
1260 double d;
1261 float f[2];
1262#if defined(DUK_USE_64BIT_OPS)
1263 duk_uint64_t ull[1];
1264#endif
1265 duk_uint32_t ui[2];
1266 duk_uint16_t us[4];
1267 duk_uint8_t uc[8];
1268#if defined(DUK_USE_PACKED_TVAL)
1269 void *vp[2]; /* used by packed duk_tval, assumes sizeof(void *) == 4 */
1270#endif
1271};
1272
1273typedef union duk_double_union duk_double_union;
1274
1275/*
1276 * Indexes of various types with respect to big endian (logical) layout
1277 */
1278
1279#if defined(DUK_USE_DOUBLE_LE)
1280#ifdef DUK_USE_64BIT_OPS
1281#define DUK_DBL_IDX_ULL0 0
1282#endif
1283#define DUK_DBL_IDX_UI0 1
1284#define DUK_DBL_IDX_UI1 0
1285#define DUK_DBL_IDX_US0 3
1286#define DUK_DBL_IDX_US1 2
1287#define DUK_DBL_IDX_US2 1
1288#define DUK_DBL_IDX_US3 0
1289#define DUK_DBL_IDX_UC0 7
1290#define DUK_DBL_IDX_UC1 6
1291#define DUK_DBL_IDX_UC2 5
1292#define DUK_DBL_IDX_UC3 4
1293#define DUK_DBL_IDX_UC4 3
1294#define DUK_DBL_IDX_UC5 2
1295#define DUK_DBL_IDX_UC6 1
1296#define DUK_DBL_IDX_UC7 0
1297#define DUK_DBL_IDX_VP0 DUK_DBL_IDX_UI0 /* packed tval */
1298#define DUK_DBL_IDX_VP1 DUK_DBL_IDX_UI1 /* packed tval */
1299#elif defined(DUK_USE_DOUBLE_BE)
1300#ifdef DUK_USE_64BIT_OPS
1301#define DUK_DBL_IDX_ULL0 0
1302#endif
1303#define DUK_DBL_IDX_UI0 0
1304#define DUK_DBL_IDX_UI1 1
1305#define DUK_DBL_IDX_US0 0
1306#define DUK_DBL_IDX_US1 1
1307#define DUK_DBL_IDX_US2 2
1308#define DUK_DBL_IDX_US3 3
1309#define DUK_DBL_IDX_UC0 0
1310#define DUK_DBL_IDX_UC1 1
1311#define DUK_DBL_IDX_UC2 2
1312#define DUK_DBL_IDX_UC3 3
1313#define DUK_DBL_IDX_UC4 4
1314#define DUK_DBL_IDX_UC5 5
1315#define DUK_DBL_IDX_UC6 6
1316#define DUK_DBL_IDX_UC7 7
1317#define DUK_DBL_IDX_VP0 DUK_DBL_IDX_UI0 /* packed tval */
1318#define DUK_DBL_IDX_VP1 DUK_DBL_IDX_UI1 /* packed tval */
1319#elif defined(DUK_USE_DOUBLE_ME)
1320#ifdef DUK_USE_64BIT_OPS
1321#define DUK_DBL_IDX_ULL0 0 /* not directly applicable, byte order differs from a double */
1322#endif
1323#define DUK_DBL_IDX_UI0 0
1324#define DUK_DBL_IDX_UI1 1
1325#define DUK_DBL_IDX_US0 1
1326#define DUK_DBL_IDX_US1 0
1327#define DUK_DBL_IDX_US2 3
1328#define DUK_DBL_IDX_US3 2
1329#define DUK_DBL_IDX_UC0 3
1330#define DUK_DBL_IDX_UC1 2
1331#define DUK_DBL_IDX_UC2 1
1332#define DUK_DBL_IDX_UC3 0
1333#define DUK_DBL_IDX_UC4 7
1334#define DUK_DBL_IDX_UC5 6
1335#define DUK_DBL_IDX_UC6 5
1336#define DUK_DBL_IDX_UC7 4
1337#define DUK_DBL_IDX_VP0 DUK_DBL_IDX_UI0 /* packed tval */
1338#define DUK_DBL_IDX_VP1 DUK_DBL_IDX_UI1 /* packed tval */
1339#else
1340#error internal error
1341#endif
1342
1343/*
1344 * Helper macros for reading/writing memory representation parts, used
1345 * by duk_numconv.c and duk_tval.h.
1346 */
1347
1348#define DUK_DBLUNION_SET_DOUBLE(u,v) do { \
1349 (u)->d = (v); \
1350 } while (0)
1351
1352#define DUK_DBLUNION_SET_HIGH32(u,v) do { \
1353 (u)->ui[DUK_DBL_IDX_UI0] = (duk_uint32_t) (v); \
1354 } while (0)
1355
1356#ifdef DUK_USE_64BIT_OPS
1357#ifdef DUK_USE_DOUBLE_ME
1358#define DUK_DBLUNION_SET_HIGH32_ZERO_LOW32(u,v) do { \
1359 (u)->ull[DUK_DBL_IDX_ULL0] = (duk_uint64_t) (v); \
1360 } while (0)
1361#else
1362#define DUK_DBLUNION_SET_HIGH32_ZERO_LOW32(u,v) do { \
1363 (u)->ull[DUK_DBL_IDX_ULL0] = ((duk_uint64_t) (v)) << 32; \
1364 } while (0)
1365#endif
1366#else /* DUK_USE_64BIT_OPS */
1367#define DUK_DBLUNION_SET_HIGH32_ZERO_LOW32(u,v) do { \
1368 (u)->ui[DUK_DBL_IDX_UI0] = (duk_uint32_t) (v); \
1369 (u)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) 0; \
1370 } while (0)
1371#endif /* DUK_USE_64BIT_OPS */
1372
1373#define DUK_DBLUNION_SET_LOW32(u,v) do { \
1374 (u)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) (v); \
1375 } while (0)
1376
1377#define DUK_DBLUNION_GET_DOUBLE(u) ((u)->d)
1378#define DUK_DBLUNION_GET_HIGH32(u) ((u)->ui[DUK_DBL_IDX_UI0])
1379#define DUK_DBLUNION_GET_LOW32(u) ((u)->ui[DUK_DBL_IDX_UI1])
1380
1381#ifdef DUK_USE_64BIT_OPS
1382#ifdef DUK_USE_DOUBLE_ME
1383#define DUK_DBLUNION_SET_UINT64(u,v) do { \
1384 (u)->ui[DUK_DBL_IDX_UI0] = (duk_uint32_t) ((v) >> 32); \
1385 (u)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) (v); \
1386 } while (0)
1387#define DUK_DBLUNION_GET_UINT64(u) \
1388 ((((duk_uint64_t) (u)->ui[DUK_DBL_IDX_UI0]) << 32) | \
1389 ((duk_uint64_t) (u)->ui[DUK_DBL_IDX_UI1]))
1390#else
1391#define DUK_DBLUNION_SET_UINT64(u,v) do { \
1392 (u)->ull[DUK_DBL_IDX_ULL0] = (duk_uint64_t) (v); \
1393 } while (0)
1394#define DUK_DBLUNION_GET_UINT64(u) ((u)->ull[DUK_DBL_IDX_ULL0])
1395#endif
1396#define DUK_DBLUNION_SET_INT64(u,v) DUK_DBLUNION_SET_UINT64((u), (duk_uint64_t) (v))
1397#define DUK_DBLUNION_GET_INT64(u) ((duk_int64_t) DUK_DBLUNION_GET_UINT64((u)))
1398#endif /* DUK_USE_64BIT_OPS */
1399
1400/*
1401 * Double NaN manipulation macros related to NaN normalization needed when
1402 * using the packed duk_tval representation. NaN normalization is necessary
1403 * to keep double values compatible with the duk_tval format.
1404 *
1405 * When packed duk_tval is used, the NaN space is used to store pointers
1406 * and other tagged values in addition to NaNs. Actual NaNs are normalized
1407 * to a specific quiet NaN. The macros below are used by the implementation
1408 * to check and normalize NaN values when they might be created. The macros
1409 * are essentially NOPs when the non-packed duk_tval representation is used.
1410 *
1411 * A FULL check is exact and checks all bits. A NOTFULL check is used by
1412 * the packed duk_tval and works correctly for all NaNs except those that
1413 * begin with 0x7ff0. Since the 'normalized NaN' values used with packed
1414 * duk_tval begin with 0x7ff8, the partial check is reliable when packed
1415 * duk_tval is used. The 0x7ff8 prefix means the normalized NaN will be a
1416 * quiet NaN regardless of its remaining lower bits.
1417 *
1418 * The ME variant below is specifically for ARM byte order, which has the
1419 * feature that while doubles have a mixed byte order (32107654), unsigned
1420 * long long values has a little endian byte order (76543210). When writing
1421 * a logical double value through a ULL pointer, the 32-bit words need to be
1422 * swapped; hence the #ifdefs below for ULL writes with DUK_USE_DOUBLE_ME.
1423 * This is not full ARM support but suffices for some environments.
1424 */
1425
1426#ifdef DUK_USE_64BIT_OPS
1427#ifdef DUK_USE_DOUBLE_ME
1428#define DUK__DBLUNION_SET_NAN_FULL(u) do { \
1429 (u)->ull[DUK_DBL_IDX_ULL0] = 0x000000007ff80000ULL; \
1430 } while (0)
1431#else
1432#define DUK__DBLUNION_SET_NAN_FULL(u) do { \
1433 (u)->ull[DUK_DBL_IDX_ULL0] = 0x7ff8000000000000ULL; \
1434 } while (0)
1435#endif
1436#else /* DUK_USE_64BIT_OPS */
1437#define DUK__DBLUNION_SET_NAN_FULL(u) do { \
1438 (u)->ui[DUK_DBL_IDX_UI0] = (duk_uint32_t) 0x7ff80000UL; \
1439 (u)->ui[DUK_DBL_IDX_UI1] = (duk_uint32_t) 0x00000000UL; \
1440 } while (0)
1441#endif /* DUK_USE_64BIT_OPS */
1442
1443#define DUK__DBLUNION_SET_NAN_NOTFULL(u) do { \
1444 (u)->us[DUK_DBL_IDX_US0] = 0x7ff8UL; \
1445 } while (0)
1446
1447#ifdef DUK_USE_64BIT_OPS
1448#ifdef DUK_USE_DOUBLE_ME
1449#define DUK__DBLUNION_IS_NAN_FULL(u) \
1450 /* E == 0x7ff, F != 0 => NaN */ \
1451 ((((u)->us[DUK_DBL_IDX_US0] & 0x7ff0UL) == 0x7ff0UL) && \
1452 ((((u)->ull[DUK_DBL_IDX_ULL0]) & 0xffffffff000fffffULL) != 0))
1453#else
1454#define DUK__DBLUNION_IS_NAN_FULL(u) \
1455 /* E == 0x7ff, F != 0 => NaN */ \
1456 ((((u)->us[DUK_DBL_IDX_US0] & 0x7ff0UL) == 0x7ff0UL) && \
1457 ((((u)->ull[DUK_DBL_IDX_ULL0]) & 0x000fffffffffffffULL) != 0))
1458#endif
1459#else /* DUK_USE_64BIT_OPS */
1460#define DUK__DBLUNION_IS_NAN_FULL(u) \
1461 /* E == 0x7ff, F != 0 => NaN */ \
1462 ((((u)->ui[DUK_DBL_IDX_UI0] & 0x7ff00000UL) == 0x7ff00000UL) && \
1463 (((u)->ui[DUK_DBL_IDX_UI0] & 0x000fffffUL) != 0 || \
1464 (u)->ui[DUK_DBL_IDX_UI1] != 0))
1465#endif /* DUK_USE_64BIT_OPS */
1466
1467#define DUK__DBLUNION_IS_NAN_NOTFULL(u) \
1468 /* E == 0x7ff, topmost four bits of F != 0 => assume NaN */ \
1469 ((((u)->us[DUK_DBL_IDX_US0] & 0x7ff0UL) == 0x7ff0UL) && \
1470 (((u)->us[DUK_DBL_IDX_US0] & 0x000fUL) != 0x0000UL))
1471
1472#ifdef DUK_USE_64BIT_OPS
1473#ifdef DUK_USE_DOUBLE_ME
1474#define DUK__DBLUNION_IS_NORMALIZED_NAN_FULL(u) \
1475 ((u)->ull[DUK_DBL_IDX_ULL0] == 0x000000007ff80000ULL)
1476#else
1477#define DUK__DBLUNION_IS_NORMALIZED_NAN_FULL(u) \
1478 ((u)->ull[DUK_DBL_IDX_ULL0] == 0x7ff8000000000000ULL)
1479#endif
1480#else /* DUK_USE_64BIT_OPS */
1481#define DUK__DBLUNION_IS_NORMALIZED_NAN_FULL(u) \
1482 (((u)->ui[DUK_DBL_IDX_UI0] == 0x7ff80000UL) && \
1483 ((u)->ui[DUK_DBL_IDX_UI1] == 0x00000000UL))
1484#endif /* DUK_USE_64BIT_OPS */
1485
1486#define DUK__DBLUNION_IS_NORMALIZED_NAN_NOTFULL(u) \
1487 /* E == 0x7ff, F == 8 => normalized NaN */ \
1488 ((u)->us[DUK_DBL_IDX_US0] == 0x7ff8UL)
1489
1490#define DUK__DBLUNION_NORMALIZE_NAN_CHECK_FULL(u) do { \
1491 if (DUK__DBLUNION_IS_NAN_FULL((u))) { \
1492 DUK__DBLUNION_SET_NAN_FULL((u)); \
1493 } \
1494 } while (0)
1495
1496#define DUK__DBLUNION_NORMALIZE_NAN_CHECK_NOTFULL(u) do { \
1497 if (DUK__DBLUNION_IS_NAN_NOTFULL((u))) { \
1498 DUK__DBLUNION_SET_NAN_NOTFULL((u)); \
1499 } \
1500 } while (0)
1501
1502/* Concrete macros for NaN handling used by the implementation internals.
1503 * Chosen so that they match the duk_tval representation: with a packed
1504 * duk_tval, ensure NaNs are properly normalized; with a non-packed duk_tval
1505 * these are essentially NOPs.
1506 */
1507
1508#if defined(DUK_USE_PACKED_TVAL)
1509#if defined(DUK_USE_FULL_TVAL)
1510#define DUK_DBLUNION_NORMALIZE_NAN_CHECK(u) DUK__DBLUNION_NORMALIZE_NAN_CHECK_FULL((u))
1511#define DUK_DBLUNION_IS_NAN(u) DUK__DBLUNION_IS_NAN_FULL((u))
1512#define DUK_DBLUNION_IS_NORMALIZED_NAN(u) DUK__DBLUNION_IS_NORMALIZED_NAN_FULL((u))
1513#define DUK_DBLUNION_SET_NAN(d) DUK__DBLUNION_SET_NAN_FULL((d))
1514#else
1515#define DUK_DBLUNION_NORMALIZE_NAN_CHECK(u) DUK__DBLUNION_NORMALIZE_NAN_CHECK_NOTFULL((u))
1516#define DUK_DBLUNION_IS_NAN(u) DUK__DBLUNION_IS_NAN_NOTFULL((u))
1517#define DUK_DBLUNION_IS_NORMALIZED_NAN(u) DUK__DBLUNION_IS_NORMALIZED_NAN_NOTFULL((u))
1518#define DUK_DBLUNION_SET_NAN(d) DUK__DBLUNION_SET_NAN_NOTFULL((d))
1519#endif
1520#define DUK_DBLUNION_IS_NORMALIZED(u) \
1521 (!DUK_DBLUNION_IS_NAN((u)) || /* either not a NaN */ \
1522 DUK_DBLUNION_IS_NORMALIZED_NAN((u))) /* or is a normalized NaN */
1523#else /* DUK_USE_PACKED_TVAL */
1524#define DUK_DBLUNION_NORMALIZE_NAN_CHECK(u) /* nop: no need to normalize */
1525#define DUK_DBLUNION_IS_NAN(u) (DUK_ISNAN((u)->d))
1526#define DUK_DBLUNION_IS_NORMALIZED_NAN(u) (DUK_ISNAN((u)->d))
1527#define DUK_DBLUNION_IS_NORMALIZED(u) 1 /* all doubles are considered normalized */
1528#define DUK_DBLUNION_SET_NAN(u) do { \
1529 /* in non-packed representation we don't care about which NaN is used */ \
1530 (u)->d = DUK_DOUBLE_NAN; \
1531 } while (0)
1532#endif /* DUK_USE_PACKED_TVAL */
1533
1534/* XXX: native 64-bit byteswaps when available */
1535
1536/* 64-bit byteswap, same operation independent of target endianness. */
1537#define DUK_DBLUNION_BSWAP64(u) do { \
1538 duk_uint32_t duk__bswaptmp1, duk__bswaptmp2; \
1539 duk__bswaptmp1 = (u)->ui[0]; \
1540 duk__bswaptmp2 = (u)->ui[1]; \
1541 duk__bswaptmp1 = DUK_BSWAP32(duk__bswaptmp1); \
1542 duk__bswaptmp2 = DUK_BSWAP32(duk__bswaptmp2); \
1543 (u)->ui[0] = duk__bswaptmp2; \
1544 (u)->ui[1] = duk__bswaptmp1; \
1545 } while (0)
1546
1547/* Byteswap an IEEE double in the duk_double_union from host to network
1548 * order. For a big endian target this is a no-op.
1549 */
1550#if defined(DUK_USE_DOUBLE_LE)
1551#define DUK_DBLUNION_DOUBLE_HTON(u) do { \
1552 duk_uint32_t duk__bswaptmp1, duk__bswaptmp2; \
1553 duk__bswaptmp1 = (u)->ui[0]; \
1554 duk__bswaptmp2 = (u)->ui[1]; \
1555 duk__bswaptmp1 = DUK_BSWAP32(duk__bswaptmp1); \
1556 duk__bswaptmp2 = DUK_BSWAP32(duk__bswaptmp2); \
1557 (u)->ui[0] = duk__bswaptmp2; \
1558 (u)->ui[1] = duk__bswaptmp1; \
1559 } while (0)
1560#elif defined(DUK_USE_DOUBLE_ME)
1561#define DUK_DBLUNION_DOUBLE_HTON(u) do { \
1562 duk_uint32_t duk__bswaptmp1, duk__bswaptmp2; \
1563 duk__bswaptmp1 = (u)->ui[0]; \
1564 duk__bswaptmp2 = (u)->ui[1]; \
1565 duk__bswaptmp1 = DUK_BSWAP32(duk__bswaptmp1); \
1566 duk__bswaptmp2 = DUK_BSWAP32(duk__bswaptmp2); \
1567 (u)->ui[0] = duk__bswaptmp1; \
1568 (u)->ui[1] = duk__bswaptmp2; \
1569 } while (0)
1570#elif defined(DUK_USE_DOUBLE_BE)
1571#define DUK_DBLUNION_DOUBLE_HTON(u) do { } while (0)
1572#else
1573#error internal error, double endianness insane
1574#endif
1575
1576/* Reverse operation is the same. */
1577#define DUK_DBLUNION_DOUBLE_NTOH(u) DUK_DBLUNION_DOUBLE_HTON((u))
1578
1579#endif /* DUK_DBLUNION_H_INCLUDED */
1580
1581#endif /* DUKTAPE_H_INCLUDED */
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