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Commit | Line | Data |
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4a5fcab7 | 1 | /* |
6e8e5cb9 | 2 | * JSON Parser |
4a5fcab7 AL |
3 | * |
4 | * Copyright IBM, Corp. 2009 | |
5 | * | |
6 | * Authors: | |
7 | * Anthony Liguori <aliguori@us.ibm.com> | |
8 | * | |
9 | * This work is licensed under the terms of the GNU LGPL, version 2.1 or later. | |
10 | * See the COPYING.LIB file in the top-level directory. | |
11 | * | |
12 | */ | |
13 | ||
f2ad72b3 | 14 | #include "qemu/osdep.h" |
4a5fcab7 | 15 | |
da34e65c | 16 | #include "qapi/error.h" |
4a5fcab7 | 17 | #include "qemu-common.h" |
7b1b5d19 PB |
18 | #include "qapi/qmp/qstring.h" |
19 | #include "qapi/qmp/qint.h" | |
20 | #include "qapi/qmp/qdict.h" | |
21 | #include "qapi/qmp/qlist.h" | |
22 | #include "qapi/qmp/qfloat.h" | |
23 | #include "qapi/qmp/qbool.h" | |
24 | #include "qapi/qmp/json-parser.h" | |
25 | #include "qapi/qmp/json-lexer.h" | |
9bada897 | 26 | #include "qapi/qmp/json-streamer.h" |
4a5fcab7 AL |
27 | |
28 | typedef struct JSONParserContext | |
29 | { | |
ef749d07 | 30 | Error *err; |
9bada897 | 31 | JSONToken *current; |
95385fe9 | 32 | GQueue *buf; |
4a5fcab7 AL |
33 | } JSONParserContext; |
34 | ||
35 | #define BUG_ON(cond) assert(!(cond)) | |
36 | ||
37 | /** | |
38 | * TODO | |
39 | * | |
40 | * 0) make errors meaningful again | |
41 | * 1) add geometry information to tokens | |
42 | * 3) should we return a parsed size? | |
43 | * 4) deal with premature EOI | |
44 | */ | |
45 | ||
65c0f1e9 | 46 | static QObject *parse_value(JSONParserContext *ctxt, va_list *ap); |
4a5fcab7 | 47 | |
4a5fcab7 AL |
48 | /** |
49 | * Error handler | |
50 | */ | |
8b7968f7 | 51 | static void GCC_FMT_ATTR(3, 4) parse_error(JSONParserContext *ctxt, |
9bada897 | 52 | JSONToken *token, const char *msg, ...) |
4a5fcab7 | 53 | { |
c96c84a9 | 54 | va_list ap; |
ef749d07 | 55 | char message[1024]; |
c96c84a9 | 56 | va_start(ap, msg); |
ef749d07 | 57 | vsnprintf(message, sizeof(message), msg, ap); |
c96c84a9 | 58 | va_end(ap); |
ef749d07 AL |
59 | if (ctxt->err) { |
60 | error_free(ctxt->err); | |
61 | ctxt->err = NULL; | |
62 | } | |
f231b88d | 63 | error_setg(&ctxt->err, "JSON parse error, %s", message); |
4a5fcab7 AL |
64 | } |
65 | ||
66 | /** | |
67 | * String helpers | |
68 | * | |
69 | * These helpers are used to unescape strings. | |
70 | */ | |
71 | static void wchar_to_utf8(uint16_t wchar, char *buffer, size_t buffer_length) | |
72 | { | |
73 | if (wchar <= 0x007F) { | |
74 | BUG_ON(buffer_length < 2); | |
75 | ||
76 | buffer[0] = wchar & 0x7F; | |
77 | buffer[1] = 0; | |
78 | } else if (wchar <= 0x07FF) { | |
79 | BUG_ON(buffer_length < 3); | |
80 | ||
81 | buffer[0] = 0xC0 | ((wchar >> 6) & 0x1F); | |
82 | buffer[1] = 0x80 | (wchar & 0x3F); | |
83 | buffer[2] = 0; | |
84 | } else { | |
85 | BUG_ON(buffer_length < 4); | |
86 | ||
87 | buffer[0] = 0xE0 | ((wchar >> 12) & 0x0F); | |
88 | buffer[1] = 0x80 | ((wchar >> 6) & 0x3F); | |
89 | buffer[2] = 0x80 | (wchar & 0x3F); | |
90 | buffer[3] = 0; | |
91 | } | |
92 | } | |
93 | ||
94 | static int hex2decimal(char ch) | |
95 | { | |
96 | if (ch >= '0' && ch <= '9') { | |
97 | return (ch - '0'); | |
98 | } else if (ch >= 'a' && ch <= 'f') { | |
99 | return 10 + (ch - 'a'); | |
100 | } else if (ch >= 'A' && ch <= 'F') { | |
101 | return 10 + (ch - 'A'); | |
102 | } | |
103 | ||
104 | return -1; | |
105 | } | |
106 | ||
107 | /** | |
108 | * parse_string(): Parse a json string and return a QObject | |
109 | * | |
110 | * string | |
111 | * "" | |
112 | * " chars " | |
113 | * chars | |
114 | * char | |
115 | * char chars | |
116 | * char | |
117 | * any-Unicode-character- | |
118 | * except-"-or-\-or- | |
119 | * control-character | |
120 | * \" | |
121 | * \\ | |
122 | * \/ | |
123 | * \b | |
124 | * \f | |
125 | * \n | |
126 | * \r | |
127 | * \t | |
128 | * \u four-hex-digits | |
129 | */ | |
9bada897 PB |
130 | static QString *qstring_from_escaped_str(JSONParserContext *ctxt, |
131 | JSONToken *token) | |
4a5fcab7 | 132 | { |
9bada897 | 133 | const char *ptr = token->str; |
4a5fcab7 AL |
134 | QString *str; |
135 | int double_quote = 1; | |
136 | ||
137 | if (*ptr == '"') { | |
138 | double_quote = 1; | |
139 | } else { | |
140 | double_quote = 0; | |
141 | } | |
142 | ptr++; | |
143 | ||
144 | str = qstring_new(); | |
145 | while (*ptr && | |
146 | ((double_quote && *ptr != '"') || (!double_quote && *ptr != '\''))) { | |
147 | if (*ptr == '\\') { | |
148 | ptr++; | |
149 | ||
150 | switch (*ptr) { | |
151 | case '"': | |
152 | qstring_append(str, "\""); | |
153 | ptr++; | |
154 | break; | |
155 | case '\'': | |
156 | qstring_append(str, "'"); | |
157 | ptr++; | |
158 | break; | |
159 | case '\\': | |
160 | qstring_append(str, "\\"); | |
161 | ptr++; | |
162 | break; | |
163 | case '/': | |
164 | qstring_append(str, "/"); | |
165 | ptr++; | |
166 | break; | |
167 | case 'b': | |
168 | qstring_append(str, "\b"); | |
169 | ptr++; | |
170 | break; | |
bd032695 LC |
171 | case 'f': |
172 | qstring_append(str, "\f"); | |
173 | ptr++; | |
174 | break; | |
4a5fcab7 AL |
175 | case 'n': |
176 | qstring_append(str, "\n"); | |
177 | ptr++; | |
178 | break; | |
179 | case 'r': | |
180 | qstring_append(str, "\r"); | |
181 | ptr++; | |
182 | break; | |
183 | case 't': | |
184 | qstring_append(str, "\t"); | |
185 | ptr++; | |
186 | break; | |
187 | case 'u': { | |
188 | uint16_t unicode_char = 0; | |
189 | char utf8_char[4]; | |
190 | int i = 0; | |
191 | ||
192 | ptr++; | |
193 | ||
194 | for (i = 0; i < 4; i++) { | |
195 | if (qemu_isxdigit(*ptr)) { | |
196 | unicode_char |= hex2decimal(*ptr) << ((3 - i) * 4); | |
197 | } else { | |
198 | parse_error(ctxt, token, | |
199 | "invalid hex escape sequence in string"); | |
200 | goto out; | |
201 | } | |
202 | ptr++; | |
203 | } | |
204 | ||
205 | wchar_to_utf8(unicode_char, utf8_char, sizeof(utf8_char)); | |
206 | qstring_append(str, utf8_char); | |
207 | } break; | |
208 | default: | |
209 | parse_error(ctxt, token, "invalid escape sequence in string"); | |
210 | goto out; | |
211 | } | |
212 | } else { | |
213 | char dummy[2]; | |
214 | ||
215 | dummy[0] = *ptr++; | |
216 | dummy[1] = 0; | |
217 | ||
218 | qstring_append(str, dummy); | |
219 | } | |
220 | } | |
221 | ||
4a5fcab7 AL |
222 | return str; |
223 | ||
224 | out: | |
225 | QDECREF(str); | |
226 | return NULL; | |
227 | } | |
228 | ||
9bada897 PB |
229 | /* Note: the token object returned by parser_context_peek_token or |
230 | * parser_context_pop_token is deleted as soon as parser_context_pop_token | |
231 | * is called again. | |
95385fe9 | 232 | */ |
9bada897 | 233 | static JSONToken *parser_context_pop_token(JSONParserContext *ctxt) |
65c0f1e9 | 234 | { |
9bada897 | 235 | g_free(ctxt->current); |
95385fe9 PB |
236 | assert(!g_queue_is_empty(ctxt->buf)); |
237 | ctxt->current = g_queue_pop_head(ctxt->buf); | |
238 | return ctxt->current; | |
65c0f1e9 MR |
239 | } |
240 | ||
9bada897 | 241 | static JSONToken *parser_context_peek_token(JSONParserContext *ctxt) |
65c0f1e9 | 242 | { |
95385fe9 PB |
243 | assert(!g_queue_is_empty(ctxt->buf)); |
244 | return g_queue_peek_head(ctxt->buf); | |
65c0f1e9 MR |
245 | } |
246 | ||
95385fe9 | 247 | static JSONParserContext *parser_context_new(GQueue *tokens) |
65c0f1e9 MR |
248 | { |
249 | JSONParserContext *ctxt; | |
65c0f1e9 MR |
250 | |
251 | if (!tokens) { | |
252 | return NULL; | |
253 | } | |
254 | ||
65c0f1e9 | 255 | ctxt = g_malloc0(sizeof(JSONParserContext)); |
95385fe9 | 256 | ctxt->buf = tokens; |
65c0f1e9 MR |
257 | |
258 | return ctxt; | |
259 | } | |
260 | ||
261 | /* to support error propagation, ctxt->err must be freed separately */ | |
262 | static void parser_context_free(JSONParserContext *ctxt) | |
263 | { | |
65c0f1e9 | 264 | if (ctxt) { |
95385fe9 PB |
265 | while (!g_queue_is_empty(ctxt->buf)) { |
266 | parser_context_pop_token(ctxt); | |
65c0f1e9 | 267 | } |
9bada897 | 268 | g_free(ctxt->current); |
95385fe9 | 269 | g_queue_free(ctxt->buf); |
65c0f1e9 MR |
270 | g_free(ctxt); |
271 | } | |
272 | } | |
273 | ||
4a5fcab7 AL |
274 | /** |
275 | * Parsing rules | |
276 | */ | |
65c0f1e9 | 277 | static int parse_pair(JSONParserContext *ctxt, QDict *dict, va_list *ap) |
4a5fcab7 | 278 | { |
9bada897 PB |
279 | QObject *key = NULL, *value; |
280 | JSONToken *peek, *token; | |
4a5fcab7 | 281 | |
65c0f1e9 | 282 | peek = parser_context_peek_token(ctxt); |
11e8a46c AL |
283 | if (peek == NULL) { |
284 | parse_error(ctxt, NULL, "premature EOI"); | |
285 | goto out; | |
286 | } | |
287 | ||
65c0f1e9 | 288 | key = parse_value(ctxt, ap); |
d758d90f | 289 | if (!key || qobject_type(key) != QTYPE_QSTRING) { |
4a5fcab7 AL |
290 | parse_error(ctxt, peek, "key is not a string in object"); |
291 | goto out; | |
292 | } | |
293 | ||
65c0f1e9 | 294 | token = parser_context_pop_token(ctxt); |
11e8a46c AL |
295 | if (token == NULL) { |
296 | parse_error(ctxt, NULL, "premature EOI"); | |
297 | goto out; | |
298 | } | |
299 | ||
9bada897 | 300 | if (token->type != JSON_COLON) { |
4a5fcab7 AL |
301 | parse_error(ctxt, token, "missing : in object pair"); |
302 | goto out; | |
303 | } | |
304 | ||
65c0f1e9 | 305 | value = parse_value(ctxt, ap); |
4a5fcab7 AL |
306 | if (value == NULL) { |
307 | parse_error(ctxt, token, "Missing value in dict"); | |
308 | goto out; | |
309 | } | |
310 | ||
311 | qdict_put_obj(dict, qstring_get_str(qobject_to_qstring(key)), value); | |
312 | ||
4a5fcab7 | 313 | qobject_decref(key); |
4a5fcab7 AL |
314 | |
315 | return 0; | |
316 | ||
317 | out: | |
4a5fcab7 | 318 | qobject_decref(key); |
4a5fcab7 AL |
319 | |
320 | return -1; | |
321 | } | |
322 | ||
65c0f1e9 | 323 | static QObject *parse_object(JSONParserContext *ctxt, va_list *ap) |
4a5fcab7 AL |
324 | { |
325 | QDict *dict = NULL; | |
9bada897 | 326 | JSONToken *token, *peek; |
4a5fcab7 | 327 | |
65c0f1e9 | 328 | token = parser_context_pop_token(ctxt); |
9bada897 | 329 | assert(token && token->type == JSON_LCURLY); |
4a5fcab7 AL |
330 | |
331 | dict = qdict_new(); | |
332 | ||
65c0f1e9 | 333 | peek = parser_context_peek_token(ctxt); |
11e8a46c AL |
334 | if (peek == NULL) { |
335 | parse_error(ctxt, NULL, "premature EOI"); | |
336 | goto out; | |
337 | } | |
338 | ||
9bada897 | 339 | if (peek->type != JSON_RCURLY) { |
65c0f1e9 | 340 | if (parse_pair(ctxt, dict, ap) == -1) { |
4a5fcab7 AL |
341 | goto out; |
342 | } | |
343 | ||
65c0f1e9 | 344 | token = parser_context_pop_token(ctxt); |
11e8a46c AL |
345 | if (token == NULL) { |
346 | parse_error(ctxt, NULL, "premature EOI"); | |
347 | goto out; | |
348 | } | |
349 | ||
9bada897 PB |
350 | while (token->type != JSON_RCURLY) { |
351 | if (token->type != JSON_COMMA) { | |
4a5fcab7 AL |
352 | parse_error(ctxt, token, "expected separator in dict"); |
353 | goto out; | |
354 | } | |
4a5fcab7 | 355 | |
65c0f1e9 | 356 | if (parse_pair(ctxt, dict, ap) == -1) { |
4a5fcab7 AL |
357 | goto out; |
358 | } | |
359 | ||
65c0f1e9 | 360 | token = parser_context_pop_token(ctxt); |
11e8a46c AL |
361 | if (token == NULL) { |
362 | parse_error(ctxt, NULL, "premature EOI"); | |
363 | goto out; | |
364 | } | |
4a5fcab7 | 365 | } |
4a5fcab7 | 366 | } else { |
a491af47 | 367 | (void)parser_context_pop_token(ctxt); |
4a5fcab7 AL |
368 | } |
369 | ||
4a5fcab7 AL |
370 | return QOBJECT(dict); |
371 | ||
372 | out: | |
4a5fcab7 AL |
373 | QDECREF(dict); |
374 | return NULL; | |
375 | } | |
376 | ||
65c0f1e9 | 377 | static QObject *parse_array(JSONParserContext *ctxt, va_list *ap) |
4a5fcab7 AL |
378 | { |
379 | QList *list = NULL; | |
9bada897 | 380 | JSONToken *token, *peek; |
4a5fcab7 | 381 | |
65c0f1e9 | 382 | token = parser_context_pop_token(ctxt); |
9bada897 | 383 | assert(token && token->type == JSON_LSQUARE); |
4a5fcab7 AL |
384 | |
385 | list = qlist_new(); | |
386 | ||
65c0f1e9 | 387 | peek = parser_context_peek_token(ctxt); |
11e8a46c AL |
388 | if (peek == NULL) { |
389 | parse_error(ctxt, NULL, "premature EOI"); | |
390 | goto out; | |
391 | } | |
392 | ||
9bada897 | 393 | if (peek->type != JSON_RSQUARE) { |
4a5fcab7 AL |
394 | QObject *obj; |
395 | ||
65c0f1e9 | 396 | obj = parse_value(ctxt, ap); |
4a5fcab7 AL |
397 | if (obj == NULL) { |
398 | parse_error(ctxt, token, "expecting value"); | |
399 | goto out; | |
400 | } | |
401 | ||
402 | qlist_append_obj(list, obj); | |
403 | ||
65c0f1e9 | 404 | token = parser_context_pop_token(ctxt); |
11e8a46c AL |
405 | if (token == NULL) { |
406 | parse_error(ctxt, NULL, "premature EOI"); | |
407 | goto out; | |
408 | } | |
409 | ||
9bada897 PB |
410 | while (token->type != JSON_RSQUARE) { |
411 | if (token->type != JSON_COMMA) { | |
4a5fcab7 AL |
412 | parse_error(ctxt, token, "expected separator in list"); |
413 | goto out; | |
414 | } | |
415 | ||
65c0f1e9 | 416 | obj = parse_value(ctxt, ap); |
4a5fcab7 AL |
417 | if (obj == NULL) { |
418 | parse_error(ctxt, token, "expecting value"); | |
419 | goto out; | |
420 | } | |
421 | ||
422 | qlist_append_obj(list, obj); | |
423 | ||
65c0f1e9 | 424 | token = parser_context_pop_token(ctxt); |
11e8a46c AL |
425 | if (token == NULL) { |
426 | parse_error(ctxt, NULL, "premature EOI"); | |
427 | goto out; | |
428 | } | |
4a5fcab7 | 429 | } |
4a5fcab7 | 430 | } else { |
a491af47 | 431 | (void)parser_context_pop_token(ctxt); |
4a5fcab7 AL |
432 | } |
433 | ||
4a5fcab7 AL |
434 | return QOBJECT(list); |
435 | ||
436 | out: | |
4a5fcab7 AL |
437 | QDECREF(list); |
438 | return NULL; | |
439 | } | |
440 | ||
65c0f1e9 | 441 | static QObject *parse_keyword(JSONParserContext *ctxt) |
4a5fcab7 | 442 | { |
9bada897 | 443 | JSONToken *token; |
4a5fcab7 | 444 | |
65c0f1e9 | 445 | token = parser_context_pop_token(ctxt); |
9bada897 | 446 | assert(token && token->type == JSON_KEYWORD); |
50e2a467 | 447 | |
9bada897 | 448 | if (!strcmp(token->str, "true")) { |
d538b255 | 449 | return QOBJECT(qbool_from_bool(true)); |
9bada897 | 450 | } else if (!strcmp(token->str, "false")) { |
d538b255 | 451 | return QOBJECT(qbool_from_bool(false)); |
9bada897 | 452 | } else if (!strcmp(token->str, "null")) { |
d538b255 | 453 | return qnull(); |
4a5fcab7 | 454 | } |
9bada897 | 455 | parse_error(ctxt, token, "invalid keyword '%s'", token->str); |
4a5fcab7 AL |
456 | return NULL; |
457 | } | |
458 | ||
65c0f1e9 | 459 | static QObject *parse_escape(JSONParserContext *ctxt, va_list *ap) |
4a5fcab7 | 460 | { |
9bada897 | 461 | JSONToken *token; |
4a5fcab7 AL |
462 | |
463 | if (ap == NULL) { | |
d538b255 | 464 | return NULL; |
4a5fcab7 AL |
465 | } |
466 | ||
65c0f1e9 | 467 | token = parser_context_pop_token(ctxt); |
9bada897 | 468 | assert(token && token->type == JSON_ESCAPE); |
6b9606f6 | 469 | |
9bada897 | 470 | if (!strcmp(token->str, "%p")) { |
d538b255 | 471 | return va_arg(*ap, QObject *); |
9bada897 | 472 | } else if (!strcmp(token->str, "%i")) { |
d538b255 | 473 | return QOBJECT(qbool_from_bool(va_arg(*ap, int))); |
9bada897 | 474 | } else if (!strcmp(token->str, "%d")) { |
d538b255 | 475 | return QOBJECT(qint_from_int(va_arg(*ap, int))); |
9bada897 | 476 | } else if (!strcmp(token->str, "%ld")) { |
d538b255 | 477 | return QOBJECT(qint_from_int(va_arg(*ap, long))); |
9bada897 PB |
478 | } else if (!strcmp(token->str, "%lld") || |
479 | !strcmp(token->str, "%I64d")) { | |
d538b255 | 480 | return QOBJECT(qint_from_int(va_arg(*ap, long long))); |
9bada897 | 481 | } else if (!strcmp(token->str, "%s")) { |
d538b255 | 482 | return QOBJECT(qstring_from_str(va_arg(*ap, const char *))); |
9bada897 | 483 | } else if (!strcmp(token->str, "%f")) { |
d538b255 | 484 | return QOBJECT(qfloat_from_double(va_arg(*ap, double))); |
4a5fcab7 | 485 | } |
4a5fcab7 AL |
486 | return NULL; |
487 | } | |
488 | ||
65c0f1e9 | 489 | static QObject *parse_literal(JSONParserContext *ctxt) |
4a5fcab7 | 490 | { |
9bada897 | 491 | JSONToken *token; |
4a5fcab7 | 492 | |
65c0f1e9 | 493 | token = parser_context_pop_token(ctxt); |
d538b255 | 494 | assert(token); |
11e8a46c | 495 | |
9bada897 | 496 | switch (token->type) { |
4a5fcab7 | 497 | case JSON_STRING: |
d538b255 | 498 | return QOBJECT(qstring_from_escaped_str(ctxt, token)); |
3d5b3ec6 MR |
499 | case JSON_INTEGER: { |
500 | /* A possibility exists that this is a whole-valued float where the | |
501 | * fractional part was left out due to being 0 (.0). It's not a big | |
502 | * deal to treat these as ints in the parser, so long as users of the | |
503 | * resulting QObject know to expect a QInt in place of a QFloat in | |
504 | * cases like these. | |
505 | * | |
506 | * However, in some cases these values will overflow/underflow a | |
507 | * QInt/int64 container, thus we should assume these are to be handled | |
508 | * as QFloats/doubles rather than silently changing their values. | |
509 | * | |
510 | * strtoll() indicates these instances by setting errno to ERANGE | |
511 | */ | |
512 | int64_t value; | |
513 | ||
514 | errno = 0; /* strtoll doesn't set errno on success */ | |
9bada897 | 515 | value = strtoll(token->str, NULL, 10); |
3d5b3ec6 | 516 | if (errno != ERANGE) { |
d538b255 | 517 | return QOBJECT(qint_from_int(value)); |
3d5b3ec6 MR |
518 | } |
519 | /* fall through to JSON_FLOAT */ | |
520 | } | |
4a5fcab7 | 521 | case JSON_FLOAT: |
6e8e5cb9 EB |
522 | /* FIXME dependent on locale; a pervasive issue in QEMU */ |
523 | /* FIXME our lexer matches RFC 7159 in forbidding Inf or NaN, | |
524 | * but those might be useful extensions beyond JSON */ | |
9bada897 | 525 | return QOBJECT(qfloat_from_double(strtod(token->str, NULL))); |
4a5fcab7 | 526 | default: |
d538b255 | 527 | abort(); |
4a5fcab7 | 528 | } |
4a5fcab7 AL |
529 | } |
530 | ||
65c0f1e9 | 531 | static QObject *parse_value(JSONParserContext *ctxt, va_list *ap) |
4a5fcab7 | 532 | { |
9bada897 | 533 | JSONToken *token; |
4a5fcab7 | 534 | |
d538b255 MA |
535 | token = parser_context_peek_token(ctxt); |
536 | if (token == NULL) { | |
537 | parse_error(ctxt, NULL, "premature EOI"); | |
538 | return NULL; | |
4a5fcab7 AL |
539 | } |
540 | ||
9bada897 | 541 | switch (token->type) { |
d538b255 MA |
542 | case JSON_LCURLY: |
543 | return parse_object(ctxt, ap); | |
544 | case JSON_LSQUARE: | |
545 | return parse_array(ctxt, ap); | |
546 | case JSON_ESCAPE: | |
547 | return parse_escape(ctxt, ap); | |
548 | case JSON_INTEGER: | |
549 | case JSON_FLOAT: | |
550 | case JSON_STRING: | |
551 | return parse_literal(ctxt); | |
552 | case JSON_KEYWORD: | |
553 | return parse_keyword(ctxt); | |
554 | default: | |
555 | parse_error(ctxt, token, "expecting value"); | |
556 | return NULL; | |
557 | } | |
4a5fcab7 AL |
558 | } |
559 | ||
95385fe9 | 560 | QObject *json_parser_parse(GQueue *tokens, va_list *ap) |
ef749d07 AL |
561 | { |
562 | return json_parser_parse_err(tokens, ap, NULL); | |
563 | } | |
564 | ||
95385fe9 | 565 | QObject *json_parser_parse_err(GQueue *tokens, va_list *ap, Error **errp) |
4a5fcab7 | 566 | { |
65c0f1e9 | 567 | JSONParserContext *ctxt = parser_context_new(tokens); |
4a5fcab7 AL |
568 | QObject *result; |
569 | ||
65c0f1e9 | 570 | if (!ctxt) { |
c1990ebf MR |
571 | return NULL; |
572 | } | |
4a5fcab7 | 573 | |
65c0f1e9 MR |
574 | result = parse_value(ctxt, ap); |
575 | ||
576 | error_propagate(errp, ctxt->err); | |
4a5fcab7 | 577 | |
65c0f1e9 | 578 | parser_context_free(ctxt); |
ef749d07 | 579 | |
4a5fcab7 AL |
580 | return result; |
581 | } |