/tmp/bitcoin/src/univalue/lib/univalue_read.cpp

Source
// Copyright 2014 BitPay Inc.
// Distributed under the MIT software license, see the accompanying
// file COPYING or https://opensource.org/licenses/mit-license.php.

#include <univalue.h>
#include <univalue_utffilter.h>

#include <cstdint>
#include <cstring>
#include <string>
#include <string_view>
#include <vector>

/*
 * According to stackexchange, the original json test suite wanted
 * to limit depth to 22.  Widely-deployed PHP bails at depth 512,
 * so we will follow PHP's lead, which should be more than sufficient
 * (further stackexchange comments indicate depth > 32 rarely occurs).
 */
static constexpr size_t MAX_JSON_DEPTH = 512;

static bool json_isdigit(int ch)
{
    return ((ch >= '0') && (ch <= '9'));
}

// convert hexadecimal string to unsigned integer
static const char *hatoui(const char *first, const char *last,
                          unsigned int& out)
{
    unsigned int result = 0;
    for (; first != last; ++first)
    {
        int digit;
        if (json_isdigit(*first))
            digit = *first - '0';

        else if (*first >= 'a' && *first <= 'f')
            digit = *first - 'a' + 10;

        else if (*first >= 'A' && *first <= 'F')
            digit = *first - 'A' + 10;

        else
            break;

        result = 16 * result + digit;
    }
    out = result;

    return first;
}

enum jtokentype getJsonToken(std::string& tokenVal, unsigned int& consumed,
                            const char *raw, const char *end)
{
    tokenVal.clear();
    consumed = 0;

    const char *rawStart = raw;

    while (raw < end && (json_isspace(*raw)))          // skip whitespace
        raw++;

    if (raw >= end)
        return JTOK_NONE;

    switch (*raw) {

    case '{':
        raw++;
        consumed = (raw - rawStart);
        return JTOK_OBJ_OPEN;
    case '}':
        raw++;
        consumed = (raw - rawStart);
        return JTOK_OBJ_CLOSE;
    case '[':
        raw++;
        consumed = (raw - rawStart);
        return JTOK_ARR_OPEN;
    case ']':
        raw++;
        consumed = (raw - rawStart);
        return JTOK_ARR_CLOSE;

    case ':':
        raw++;
        consumed = (raw - rawStart);
        return JTOK_COLON;
    case ',':
        raw++;
        consumed = (raw - rawStart);
        return JTOK_COMMA;

    case 'n':
    case 't':
    case 'f':
        if (!strncmp(raw, "null", 4)) {
            raw += 4;
            consumed = (raw - rawStart);
            return JTOK_KW_NULL;
        } else if (!strncmp(raw, "true", 4)) {
            raw += 4;
            consumed = (raw - rawStart);
            return JTOK_KW_TRUE;
        } else if (!strncmp(raw, "false", 5)) {
            raw += 5;
            consumed = (raw - rawStart);
            return JTOK_KW_FALSE;
        } else
            return JTOK_ERR;

    case '-':
    case '0':
    case '1':
    case '2':
    case '3':
    case '4':
    case '5':
    case '6':
    case '7':
    case '8':
    case '9': {
        // part 1: int
        std::string numStr;

        const char *first = raw;

        const char *firstDigit = first;
        if (!json_isdigit(*firstDigit))
            firstDigit++;
        if ((*firstDigit == '0') && json_isdigit(firstDigit[1]))
            return JTOK_ERR;

        numStr += *raw;                       // copy first char
        raw++;

        if ((*first == '-') && (raw < end) && (!json_isdigit(*raw)))
            return JTOK_ERR;

        while (raw < end && json_isdigit(*raw)) {  // copy digits
            numStr += *raw;
            raw++;
        }

        // part 2: frac
        if (raw < end && *raw == '.') {
            numStr += *raw;                   // copy .
            raw++;

            if (raw >= end || !json_isdigit(*raw))
                return JTOK_ERR;
            while (raw < end && json_isdigit(*raw)) { // copy digits
                numStr += *raw;
                raw++;
            }
        }

        // part 3: exp
        if (raw < end && (*raw == 'e' || *raw == 'E')) {
            numStr += *raw;                   // copy E
            raw++;

            if (raw < end && (*raw == '-' || *raw == '+')) { // copy +/-
                numStr += *raw;
                raw++;
            }

            if (raw >= end || !json_isdigit(*raw))
                return JTOK_ERR;
            while (raw < end && json_isdigit(*raw)) { // copy digits
                numStr += *raw;
                raw++;
            }
        }

        tokenVal = numStr;
        consumed = (raw - rawStart);
        return JTOK_NUMBER;
        }

    case '"': {
        raw++;                                // skip "

        std::string valStr;
        JSONUTF8StringFilter writer(valStr);

        while (true) {
            if (raw >= end || (unsigned char)*raw < 0x20)
                return JTOK_ERR;

            else if (*raw == '\\') {
                raw++;                        // skip backslash

                if (raw >= end)
                    return JTOK_ERR;

                switch (*raw) {
                case '"':  writer.push_back('\"'); break;
                case '\\': writer.push_back('\\'); break;
                case '/':  writer.push_back('/'); break;
                case 'b':  writer.push_back('\b'); break;
                case 'f':  writer.push_back('\f'); break;
                case 'n':  writer.push_back('\n'); break;
                case 'r':  writer.push_back('\r'); break;
                case 't':  writer.push_back('\t'); break;

                case 'u': {
                    unsigned int codepoint;
                    if (raw + 1 + 4 >= end ||
                        hatoui(raw + 1, raw + 1 + 4, codepoint) !=
                               raw + 1 + 4)
                        return JTOK_ERR;
                    writer.push_back_u(codepoint);
                    raw += 4;
                    break;
                    }
                default:
                    return JTOK_ERR;

                }

                raw++;                        // skip esc'd char
            }

            else if (*raw == '"') {
                raw++;                        // skip "
                break;                        // stop scanning
            }

            else {
                writer.push_back(static_cast<unsigned char>(*raw));
                raw++;
            }
        }

        if (!writer.finalize())
            return JTOK_ERR;
        tokenVal = valStr;
        consumed = (raw - rawStart);
        return JTOK_STRING;
        }

    default:
        return JTOK_ERR;
    }
}

enum expect_bits : unsigned {
    EXP_OBJ_NAME = (1U << 0),
    EXP_COLON = (1U << 1),
    EXP_ARR_VALUE = (1U << 2),
    EXP_VALUE = (1U << 3),
    EXP_NOT_VALUE = (1U << 4),
};

#define expect(bit) (expectMask & (EXP_##bit))
#define setExpect(bit) (expectMask |= EXP_##bit)
#define clearExpect(bit) (expectMask &= ~EXP_##bit)

bool UniValue::read(std::string_view str_in)
{
    clear();

    uint32_t expectMask = 0;
    std::vector<UniValue*> stack;

    std::string tokenVal;
    unsigned int consumed;
    enum jtokentype tok = JTOK_NONE;
    enum jtokentype last_tok = JTOK_NONE;
    const char* raw{str_in.data()};
    const char* end{raw + str_in.size()};
    do {
        last_tok = tok;

        tok = getJsonToken(tokenVal, consumed, raw, end);
        if (tok == JTOK_NONE || tok == JTOK_ERR)
            return false;
        raw += consumed;

        bool isValueOpen = jsonTokenIsValue(tok) ||
            tok == JTOK_OBJ_OPEN || tok == JTOK_ARR_OPEN;

        if (expect(VALUE)) {
            if (!isValueOpen)
                return false;
            clearExpect(VALUE);

        } else if (expect(ARR_VALUE)) {
            bool isArrValue = isValueOpen || (tok == JTOK_ARR_CLOSE);
            if (!isArrValue)
                return false;

            clearExpect(ARR_VALUE);

        } else if (expect(OBJ_NAME)) {
            bool isObjName = (tok == JTOK_OBJ_CLOSE || tok == JTOK_STRING);
            if (!isObjName)
                return false;

        } else if (expect(COLON)) {
            if (tok != JTOK_COLON)
                return false;
            clearExpect(COLON);

        } else if (!expect(COLON) && (tok == JTOK_COLON)) {
            return false;
        }

        if (expect(NOT_VALUE)) {
            if (isValueOpen)
                return false;
            clearExpect(NOT_VALUE);
        }

        switch (tok) {

        case JTOK_OBJ_OPEN:
        case JTOK_ARR_OPEN: {
            VType utyp = (tok == JTOK_OBJ_OPEN ? VOBJ : VARR);
            if (!stack.size()) {
                if (utyp == VOBJ)
                    setObject();
                else
                    setArray();
                stack.push_back(this);
            } else {
                UniValue tmpVal(utyp);
                UniValue *top = stack.back();
                top->values.push_back(tmpVal);

                UniValue *newTop = &(top->values.back());
                stack.push_back(newTop);
            }

            if (stack.size() > MAX_JSON_DEPTH)
                return false;

            if (utyp == VOBJ)
                setExpect(OBJ_NAME);
            else
                setExpect(ARR_VALUE);
            break;
            }

        case JTOK_OBJ_CLOSE:
        case JTOK_ARR_CLOSE: {
            if (!stack.size() || (last_tok == JTOK_COMMA))
                return false;

            VType utyp = (tok == JTOK_OBJ_CLOSE ? VOBJ : VARR);
            UniValue *top = stack.back();
            if (utyp != top->getType())
                return false;

            stack.pop_back();
            clearExpect(OBJ_NAME);
            setExpect(NOT_VALUE);
            break;
            }

        case JTOK_COLON: {
            if (!stack.size())
                return false;

            UniValue *top = stack.back();
            if (top->getType() != VOBJ)
                return false;

            setExpect(VALUE);
            break;
            }

        case JTOK_COMMA: {
            if (!stack.size() ||
                (last_tok == JTOK_COMMA) || (last_tok == JTOK_ARR_OPEN))
                return false;

            UniValue *top = stack.back();
            if (top->getType() == VOBJ)
                setExpect(OBJ_NAME);
            else
                setExpect(ARR_VALUE);
            break;
            }

        case JTOK_KW_NULL:
        case JTOK_KW_TRUE:
        case JTOK_KW_FALSE: {
            UniValue tmpVal;
            switch (tok) {
            case JTOK_KW_NULL:
                // do nothing more
                break;
            case JTOK_KW_TRUE:
                tmpVal.setBool(true);
                break;
            case JTOK_KW_FALSE:
                tmpVal.setBool(false);
                break;
            default: /* impossible */ break;
            }

            if (!stack.size()) {
                *this = tmpVal;
                break;
            }

            UniValue *top = stack.back();
            top->values.push_back(tmpVal);

            setExpect(NOT_VALUE);
            break;
            }

        case JTOK_NUMBER: {
            UniValue tmpVal(VNUM, tokenVal);
            if (!stack.size()) {
                *this = tmpVal;
                break;
            }

            UniValue *top = stack.back();
            top->values.push_back(tmpVal);

            setExpect(NOT_VALUE);
            break;
            }

        case JTOK_STRING: {
            if (expect(OBJ_NAME)) {
                UniValue *top = stack.back();
                top->keys.push_back(tokenVal);
                clearExpect(OBJ_NAME);
                setExpect(COLON);
            } else {
                UniValue tmpVal(VSTR, tokenVal);
                if (!stack.size()) {
                    *this = tmpVal;
                    break;
                }
                UniValue *top = stack.back();
                top->values.push_back(tmpVal);
            }

            setExpect(NOT_VALUE);
            break;
            }

        default:
            return false;
        }
    } while (!stack.empty ());

    /* Check that nothing follows the initial construct (parsed above).  */
    tok = getJsonToken(tokenVal, consumed, raw, end);
    if (tok != JTOK_NONE)
        return false;

    return true;
}


Coverage Report

Created: 2026-05-30 09:47

Line	Count	Source
1		// Copyright 2014 BitPay Inc.
2		// Distributed under the MIT software license, see the accompanying
3		// file COPYING or https://opensource.org/licenses/mit-license.php.
4
5		#include <univalue.h>
6		#include <univalue_utffilter.h>
7
8		#include <cstdint>
9		#include <cstring>
10		#include <string>
11		#include <string_view>
12		#include <vector>
13
14		/*
15		* According to stackexchange, the original json test suite wanted
16		* to limit depth to 22. Widely-deployed PHP bails at depth 512,
17		* so we will follow PHP's lead, which should be more than sufficient
18		* (further stackexchange comments indicate depth > 32 rarely occurs).
19		*/
20		static constexpr size_t MAX_JSON_DEPTH = 512;
21
22		static bool json_isdigit(int ch)
23	7.11M	{
24	7.11M	return ((ch >= '0') && (ch <= '9'));
25	7.11M	}
26
27		// convert hexadecimal string to unsigned integer
28		static const char hatoui(const char first, const char *last,
29		unsigned int& out)
30	592	{
31	592	unsigned int result = 0;
32	2.96k	for (; first != last; ++first)
33	2.36k	{
34	2.36k	int digit;
35	2.36k	if (json_isdigit(*first))
36	1.17k	digit = *first - '0';
37
38	1.19k	else if (first >= 'a' && first <= 'f')
39	1.16k	digit = *first - 'a' + 10;
40
41	22	else if (first >= 'A' && first <= 'F')
42	22	digit = *first - 'A' + 10;
43
44	0	else
45	0	break;
46
47	2.36k	result = 16 * result + digit;
48	2.36k	}
49	592	out = result;
50
51	592	return first;
52	592	}
53
54		enum jtokentype getJsonToken(std::string& tokenVal, unsigned int& consumed,
55		const char raw, const char end)
56	6.32M	{
57	6.32M	tokenVal.clear();
58	6.32M	consumed = 0;
59
60	6.32M	const char *rawStart = raw;
61
62	8.12M	while (raw < end && (json_isspace(*raw))) // skip whitespace
63	1.80M	raw++;
64
65	6.32M	if (raw >= end)
66	174k	return JTOK_NONE;
67
68	6.14M	switch (*raw) {
69
70	303k	case '{':
71	303k	raw++;
72	303k	consumed = (raw - rawStart);
73	303k	return JTOK_OBJ_OPEN;
74	303k	case '}':
75	303k	raw++;
76	303k	consumed = (raw - rawStart);
77	303k	return JTOK_OBJ_CLOSE;
78	116k	case '[':
79	116k	raw++;
80	116k	consumed = (raw - rawStart);
81	116k	return JTOK_ARR_OPEN;
82	115k	case ']':
83	115k	raw++;
84	115k	consumed = (raw - rawStart);
85	115k	return JTOK_ARR_CLOSE;
86
87	895k	case ':':
88	895k	raw++;
89	895k	consumed = (raw - rawStart);
90	895k	return JTOK_COLON;
91	875k	case ',':
92	875k	raw++;
93	875k	consumed = (raw - rawStart);
94	875k	return JTOK_COMMA;
95
96	655	case 'n':
97	16.4k	case 't':
98	18.6k	case 'f':
99	18.6k	if (!strncmp(raw, "null", 4)) {
100	653	raw += 4;
101	653	consumed = (raw - rawStart);
102	653	return JTOK_KW_NULL;
103	17.9k	} else if (!strncmp(raw, "true", 4)) {
104	15.7k	raw += 4;
105	15.7k	consumed = (raw - rawStart);
106	15.7k	return JTOK_KW_TRUE;
107	15.7k	} else if (!strncmp(raw, "false", 5)) {
108	2.18k	raw += 5;
109	2.18k	consumed = (raw - rawStart);
110	2.18k	return JTOK_KW_FALSE;
111	2.18k	} else
112	7	return JTOK_ERR;
113
114	39.2k	case '-':
115	419k	case '0':
116	930k	case '1':
117	1.24M	case '2':
118	1.42M	case '3':
119	1.55M	case '4':
120	1.61M	case '5':
121	1.70M	case '6':
122	1.76M	case '7':
123	1.86M	case '8':
124	1.93M	case '9': {
125		// part 1: int
126	1.93M	std::string numStr;
127
128	1.93M	const char *first = raw;
129
130	1.93M	const char *firstDigit = first;
131	1.93M	if (!json_isdigit(*firstDigit))
132	39.2k	firstDigit++;
133	1.93M	if ((*firstDigit == '0') && json_isdigit(firstDigit[1]))
134	1	return JTOK_ERR;
135
136	1.93M	numStr += *raw; // copy first char
137	1.93M	raw++;
138
139	1.93M	if ((first == '-') && (raw < end) && (!json_isdigit(raw)))
140	0	return JTOK_ERR;
141
142	5.70M	while (raw < end && json_isdigit(*raw)) { // copy digits
143	3.77M	numStr += *raw;
144	3.77M	raw++;
145	3.77M	}
146
147		// part 2: frac
148	1.93M	if (raw < end && *raw == '.') {
149	52.9k	numStr += *raw; // copy .
150	52.9k	raw++;
151
152	52.9k	if (raw >= end \|\| !json_isdigit(*raw))
153	0	return JTOK_ERR;
154	560k	while (raw < end && json_isdigit(*raw)) { // copy digits
155	507k	numStr += *raw;
156	507k	raw++;
157	507k	}
158	52.9k	}
159
160		// part 3: exp
161	1.93M	if (raw < end && (raw == 'e' \|\| raw == 'E')) {
162	22.9k	numStr += *raw; // copy E
163	22.9k	raw++;
164
165	22.9k	if (raw < end && (raw == '-' \|\| raw == '+')) { // copy +/-
166	22.9k	numStr += *raw;
167	22.9k	raw++;
168	22.9k	}
169
170	22.9k	if (raw >= end \|\| !json_isdigit(*raw))
171	3	return JTOK_ERR;
172	68.8k	while (raw < end && json_isdigit(*raw)) { // copy digits
173	45.8k	numStr += *raw;
174	45.8k	raw++;
175	45.8k	}
176	22.9k	}
177
178	1.93M	tokenVal = numStr;
179	1.93M	consumed = (raw - rawStart);
180	1.93M	return JTOK_NUMBER;
181	1.93M	}
182
183	1.58M	case '"': {
184	1.58M	raw++; // skip "
185
186	1.58M	std::string valStr;
187	1.58M	JSONUTF8StringFilter writer(valStr);
188
189	656M	while (true) {
190	656M	if (raw >= end \|\| (unsigned char)*raw < 0x20)
191	4	return JTOK_ERR;
192
193	656M	else if (*raw == '\\') {
194	641	raw++; // skip backslash
195
196	641	if (raw >= end)
197	0	return JTOK_ERR;
198
199	641	switch (*raw) {
200	16	case '"': writer.push_back('\"'); break;
201	4	case '\\': writer.push_back('\\'); break;
202	2	case '/': writer.push_back('/'); break;
203	4	case 'b': writer.push_back('\b'); break;
204	4	case 'f': writer.push_back('\f'); break;
205	7	case 'n': writer.push_back('\n'); break;
206	4	case 'r': writer.push_back('\r'); break;
207	4	case 't': writer.push_back('\t'); break;
208
209	592	case 'u': {
210	592	unsigned int codepoint;
211	592	if (raw + 1 + 4 >= end \|\|
212	592	hatoui(raw + 1, raw + 1 + 4, codepoint) !=
213	592	raw + 1 + 4)
214	0	return JTOK_ERR;
215	592	writer.push_back_u(codepoint);
216	592	raw += 4;
217	592	break;
218	592	}
219	4	default:
220	4	return JTOK_ERR;
221
222	641	}
223
224	637	raw++; // skip esc'd char
225	637	}
226
227	656M	else if (*raw == '"') {
228	1.58M	raw++; // skip "
229	1.58M	break; // stop scanning
230	1.58M	}
231
232	654M	else {
233	654M	writer.push_back(static_cast<unsigned char>(*raw));
234	654M	raw++;
235	654M	}
236	656M	}
237
238	1.58M	if (!writer.finalize())
239	4	return JTOK_ERR;
240	1.58M	tokenVal = valStr;
241	1.58M	consumed = (raw - rawStart);
242	1.58M	return JTOK_STRING;
243	1.58M	}
244
245	26	default:
246	26	return JTOK_ERR;
247	6.14M	}
248	6.14M	}
249
250		enum expect_bits : unsigned {
251		EXP_OBJ_NAME = (1U << 0),
252		EXP_COLON = (1U << 1),
253		EXP_ARR_VALUE = (1U << 2),
254		EXP_VALUE = (1U << 3),
255		EXP_NOT_VALUE = (1U << 4),
256		};
257
258	22.5M	#define expect(bit) (expectMask & (EXP_##bit))
259	5.38M	#define setExpect(bit) (expectMask \|= EXP_##bit)
260	5.57M	#define clearExpect(bit) (expectMask &= ~EXP_##bit)
261
262		bool UniValue::read(std::string_view str_in)
263	174k	{
264	174k	clear();
265
266	174k	uint32_t expectMask = 0;
267	174k	std::vector<UniValue*> stack;
268
269	174k	std::string tokenVal;
270	174k	unsigned int consumed;
271	174k	enum jtokentype tok = JTOK_NONE;
272	174k	enum jtokentype last_tok = JTOK_NONE;
273	174k	const char* raw{str_in.data()};
274	174k	const char* end{raw + str_in.size()};
275	4.49M	do {
276	4.49M	last_tok = tok;
277
278	4.49M	tok = getJsonToken(tokenVal, consumed, raw, end);
279	4.49M	if (tok == JTOK_NONE \|\| tok == JTOK_ERR)
280	47	return false;
281	4.49M	raw += consumed;
282
283	4.49M	bool isValueOpen = jsonTokenIsValue(tok) \|\|
284	4.49M	tok == JTOK_OBJ_OPEN \|\| tok == JTOK_ARR_OPEN;
285
286	4.49M	if (expect(VALUE)) {
287	895k	if (!isValueOpen)
288	2	return false;
289	895k	clearExpect(VALUE);
290
291	3.59M	} else if (expect(ARR_VALUE)) {
292	340k	bool isArrValue = isValueOpen \|\| (tok == JTOK_ARR_CLOSE);
293	340k	if (!isArrValue)
294	2	return false;
295
296	340k	clearExpect(ARR_VALUE);
297
298	3.25M	} else if (expect(OBJ_NAME)) {
299	955k	bool isObjName = (tok == JTOK_OBJ_CLOSE \|\| tok == JTOK_STRING);
300	955k	if (!isObjName)
301	4	return false;
302
303	2.30M	} else if (expect(COLON)) {
304	895k	if (tok != JTOK_COLON)
305	3	return false;
306	895k	clearExpect(COLON);
307
308	1.40M	} else if (!expect(COLON) && (tok == JTOK_COLON)) {
309	1	return false;
310	1	}
311
312	4.49M	if (expect(NOT_VALUE)) {
313	2.12M	if (isValueOpen)
314	2	return false;
315	2.12M	clearExpect(NOT_VALUE);
316	2.12M	}
317
318	4.49M	switch (tok) {
319
320	303k	case JTOK_OBJ_OPEN:
321	419k	case JTOK_ARR_OPEN: {
322	419k	VType utyp = (tok == JTOK_OBJ_OPEN ? VOBJ : VARR);
323	419k	if (!stack.size()) {
324	174k	if (utyp == VOBJ)
325	173k	setObject();
326	610	else
327	610	setArray();
328	174k	stack.push_back(this);
329	245k	} else {
330	245k	UniValue tmpVal(utyp);
331	245k	UniValue *top = stack.back();
332	245k	top->values.push_back(tmpVal);
333
334	245k	UniValue *newTop = &(top->values.back());
335	245k	stack.push_back(newTop);
336	245k	}
337
338	419k	if (stack.size() > MAX_JSON_DEPTH)
339	2	return false;
340
341	419k	if (utyp == VOBJ)
342	303k	setExpect(OBJ_NAME);
343	116k	else
344	116k	setExpect(ARR_VALUE);
345	419k	break;
346	419k	}
347
348	303k	case JTOK_OBJ_CLOSE:
349	418k	case JTOK_ARR_CLOSE: {
350	418k	if (!stack.size() \|\| (last_tok == JTOK_COMMA))
351	2	return false;
352
353	418k	VType utyp = (tok == JTOK_OBJ_CLOSE ? VOBJ : VARR);
354	418k	UniValue *top = stack.back();
355	418k	if (utyp != top->getType())
356	1	return false;
357
358	418k	stack.pop_back();
359	418k	clearExpect(OBJ_NAME);
360	418k	setExpect(NOT_VALUE);
361	418k	break;
362	418k	}
363
364	895k	case JTOK_COLON: {
365	895k	if (!stack.size())
366	0	return false;
367
368	895k	UniValue *top = stack.back();
369	895k	if (top->getType() != VOBJ)
370	0	return false;
371
372	895k	setExpect(VALUE);
373	895k	break;
374	895k	}
375
376	875k	case JTOK_COMMA: {
377	875k	if (!stack.size() \|\|
378	875k	(last_tok == JTOK_COMMA) \|\| (last_tok == JTOK_ARR_OPEN))
379	0	return false;
380
381	875k	UniValue *top = stack.back();
382	875k	if (top->getType() == VOBJ)
383	651k	setExpect(OBJ_NAME);
384	224k	else
385	224k	setExpect(ARR_VALUE);
386	875k	break;
387	875k	}
388
389	652	case JTOK_KW_NULL:
390	16.4k	case JTOK_KW_TRUE:
391	18.6k	case JTOK_KW_FALSE: {
392	18.6k	UniValue tmpVal;
393	18.6k	switch (tok) {
394	652	case JTOK_KW_NULL:
395		// do nothing more
396	652	break;
397	15.7k	case JTOK_KW_TRUE:
398	15.7k	tmpVal.setBool(true);
399	15.7k	break;
400	2.18k	case JTOK_KW_FALSE:
401	2.18k	tmpVal.setBool(false);
402	2.18k	break;
403	0	default: /* impossible */ break;
404	18.6k	}
405
406	18.6k	if (!stack.size()) {
407	39	*this = tmpVal;
408	39	break;
409	39	}
410
411	18.5k	UniValue *top = stack.back();
412	18.5k	top->values.push_back(tmpVal);
413
414	18.5k	setExpect(NOT_VALUE);
415	18.5k	break;
416	18.6k	}
417
418	280k	case JTOK_NUMBER: {
419	280k	UniValue tmpVal(VNUM, tokenVal);
420	280k	if (!stack.size()) {
421	69	*this = tmpVal;
422	69	break;
423	69	}
424
425	280k	UniValue *top = stack.back();
426	280k	top->values.push_back(tmpVal);
427
428	280k	setExpect(NOT_VALUE);
429	280k	break;
430	280k	}
431
432	1.58M	case JTOK_STRING: {
433	1.58M	if (expect(OBJ_NAME)) {
434	895k	UniValue *top = stack.back();
435	895k	top->keys.push_back(tokenVal);
436	895k	clearExpect(OBJ_NAME);
437	895k	setExpect(COLON);
438	895k	} else {
439	688k	UniValue tmpVal(VSTR, tokenVal);
440	688k	if (!stack.size()) {
441	3	*this = tmpVal;
442	3	break;
443	3	}
444	688k	UniValue *top = stack.back();
445	688k	top->values.push_back(tmpVal);
446	688k	}
447
448	1.58M	setExpect(NOT_VALUE);
449	1.58M	break;
450	1.58M	}
451
452	0	default:
453	0	return false;
454	4.49M	}
455	4.49M	} while (!stack.empty ());
456
457		/* Check that nothing follows the initial construct (parsed above). */
458	174k	tok = getJsonToken(tokenVal, consumed, raw, end);
459	174k	if (tok != JTOK_NONE)
460	13	return false;
461
462	174k	return true;
463	174k	}
464