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// -*- coding: utf-8 -*-
// :Project: python-rapidjson -- Python extension module
// :Author: Ken Robbins <ken@kenrobbins.com>
// :License: MIT License
// :Copyright: © 2015 Ken Robbins
// :Copyright: © 2015-2026 Lele Gaifax
//
#include <Python.h>
#include <datetime.h>
#include <structmember.h>
#include <algorithm>
#include <cmath>
#include <string>
#include <vector>
#include "rapidjson/reader.h"
#include "rapidjson/schema.h"
#include "rapidjson/stringbuffer.h"
#include "rapidjson/writer.h"
#include "rapidjson/prettywriter.h"
#include "rapidjson/error/en.h"
using namespace rapidjson;
/* On some MacOS combo, using Py_IS_XXX() macros does not work (see
https://github.com/python-rapidjson/python-rapidjson/issues/78).
OTOH, MSVC < 2015 does not have std::isxxx() (see
https://stackoverflow.com/questions/38441740/where-is-isnan-in-msvc-2010).
Oh well... */
#if defined (_MSC_VER) && (_MSC_VER < 1900)
#define IS_NAN(x) Py_IS_NAN(x)
#define IS_INF(x) Py_IS_INFINITY(x)
#else
#define IS_NAN(x) std::isnan(x)
#define IS_INF(x) std::isinf(x)
#endif
static PyObject* decimal_type = NULL;
static PyObject* timezone_type = NULL;
static PyObject* timezone_utc = NULL;
static PyObject* uuid_type = NULL;
static PyObject* validation_error = NULL;
static PyObject* decode_error = NULL;
/* These are the names of often used methods or literal values, interned in the module
initialization function, to avoid repeated creation/destruction of PyUnicode values
from plain C strings.
We cannot use _Py_IDENTIFIER() because that upsets the GNU C++ compiler in -pedantic
mode. */
static PyObject* astimezone_name = NULL;
static PyObject* hex_name = NULL;
static PyObject* timestamp_name = NULL;
static PyObject* total_seconds_name = NULL;
static PyObject* utcoffset_name = NULL;
static PyObject* is_infinite_name = NULL;
static PyObject* is_nan_name = NULL;
static PyObject* start_object_name = NULL;
static PyObject* end_object_name = NULL;
static PyObject* default_name = NULL;
static PyObject* end_array_name = NULL;
static PyObject* string_name = NULL;
static PyObject* read_name = NULL;
static PyObject* write_name = NULL;
static PyObject* encoding_name = NULL;
static PyObject* minus_inf_string_value = NULL;
static PyObject* nan_string_value = NULL;
static PyObject* plus_inf_string_value = NULL;
struct HandlerContext {
PyObject* object;
const char* key;
SizeType keyLength;
bool isObject;
bool keyValuePairs;
bool copiedKey;
};
enum DatetimeMode {
DM_NONE = 0,
// Formats
DM_ISO8601 = 1<<0, // Bidirectional ISO8601 for datetimes, dates and times
DM_UNIX_TIME = 1<<1, // Serialization only, "Unix epoch"-based number of seconds
// Options
DM_ONLY_SECONDS = 1<<4, // Truncate values to the whole second, ignoring micro seconds
DM_IGNORE_TZ = 1<<5, // Ignore timezones
DM_NAIVE_IS_UTC = 1<<6, // Assume naive datetime are in UTC timezone
DM_SHIFT_TO_UTC = 1<<7, // Shift to/from UTC
DM_MAX = 1<<8
};
#define DATETIME_MODE_FORMATS_MASK 0x0f // 0b00001111 in C++14
static inline int
datetime_mode_format(unsigned mode) {
return mode & DATETIME_MODE_FORMATS_MASK;
}
static inline bool
valid_datetime_mode(long mode) {
int format = datetime_mode_format(mode);
return (mode >= 0 && mode < DM_MAX
&& (format <= DM_UNIX_TIME)
&& (mode == 0 || format > 0));
}
static int
days_per_month(int year, int month) {
assert(month >= 1);
assert(month <= 12);
if (month == 1 || month == 3 || month == 5 || month == 7
|| month == 8 || month == 10 || month == 12) {
return 31;
} else if (month == 4 || month == 6 || month == 9 || month == 11) {
return 30;
} else if (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)) {
return 29;
} else {
return 28;
}
}
enum UuidMode {
UM_NONE = 0,
UM_CANONICAL = 1<<0, // 4-dashed 32 hex chars: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
UM_HEX = 1<<1, // canonical OR 32 hex chars in a row
UM_MAX = 1<<2
};
enum NumberMode {
NM_NONE = 0,
NM_NAN = 1<<0, // allow "not-a-number" values
NM_DECIMAL = 1<<1, // serialize Decimal instances, deserialize floats as Decimal
NM_NATIVE = 1<<2, // use faster native C library number handling
NM_MAX = 1<<3
};
enum BytesMode {
BM_NONE = 0,
BM_UTF8 = 1<<0, // try to convert to UTF-8
BM_MAX = 1<<1
};
enum ParseMode {
PM_NONE = 0,
PM_COMMENTS = 1<<0, // Allow one-line // ... and multi-line /* ... */ comments
PM_TRAILING_COMMAS = 1<<1, // allow trailing commas at the end of objects and arrays
PM_MAX = 1<<2
};
enum WriteMode {
WM_COMPACT = 0,
WM_PRETTY = 1<<0, // Use PrettyWriter
WM_SINGLE_LINE_ARRAY = 1<<1, // Format arrays on a single line
WM_MAX = 1<<2
};
enum IterableMode {
IM_ANY_ITERABLE = 0, // Default, any iterable is dumped as JSON array
IM_ONLY_LISTS = 1<<0, // Only list instances are dumped as JSON arrays
IM_MAX = 1<<1
};
enum MappingMode {
MM_ANY_MAPPING = 0, // Default, any mapping is dumped as JSON object
MM_ONLY_DICTS = 1<<0, // Only dict instances are dumped as JSON objects
MM_COERCE_KEYS_TO_STRINGS = 1<<1, // Convert keys to strings
MM_SKIP_NON_STRING_KEYS = 1<<2, // Ignore non-string keys
MM_SORT_KEYS = 1<<3, // Sort keys
MM_MAX = 1<<4
};
//////////////////////////
// Forward declarations //
//////////////////////////
static PyObject* do_decode(PyObject* decoder,
const char* jsonStr, Py_ssize_t jsonStrlen,
PyObject* jsonStream, size_t chunkSize,
PyObject* objectHook,
unsigned numberMode, unsigned datetimeMode,
unsigned uuidMode, unsigned parseMode);
static PyObject* decoder_call(PyObject* self, PyObject* args, PyObject* kwargs);
static PyObject* decoder_new(PyTypeObject* type, PyObject* args, PyObject* kwargs);
static PyObject* do_encode(PyObject* value, PyObject* defaultFn, bool ensureAscii,
unsigned writeMode, char indentChar, unsigned indentCount,
unsigned numberMode, unsigned datetimeMode,
unsigned uuidMode, unsigned bytesMode,
unsigned iterableMode, unsigned mappingMode);
static PyObject* do_stream_encode(PyObject* value, PyObject* stream, size_t chunkSize,
PyObject* defaultFn, bool ensureAscii,
unsigned writeMode, char indentChar,
unsigned indentCount, unsigned numberMode,
unsigned datetimeMode, unsigned uuidMode,
unsigned bytesMode, unsigned iterableMode,
unsigned mappingMode);
static PyObject* encoder_call(PyObject* self, PyObject* args, PyObject* kwargs);
static PyObject* encoder_new(PyTypeObject* type, PyObject* args, PyObject* kwargs);
static PyObject* validator_call(PyObject* self, PyObject* args, PyObject* kwargs);
static void validator_dealloc(PyObject* self);
static PyObject* validator_new(PyTypeObject* type, PyObject* args, PyObject* kwargs);
///////////////////////////////////////////////////
// Stream wrapper around Python file-like object //
///////////////////////////////////////////////////
class PyReadStreamWrapper {
public:
typedef char Ch;
PyReadStreamWrapper(PyObject* stream, size_t size)
: stream(stream) {
Py_INCREF(stream);
chunkSize = PyLong_FromUnsignedLong(size);
buffer = NULL;
chunk = NULL;
chunkLen = 0;
pos = 0;
offset = 0;
eof = false;
}
~PyReadStreamWrapper() {
Py_CLEAR(stream);
Py_CLEAR(chunkSize);
Py_CLEAR(chunk);
}
Ch Peek() {
if (!eof && pos == chunkLen) {
Read();
}
return eof ? '\0' : buffer[pos];
}
Ch Take() {
if (!eof && pos == chunkLen) {
Read();
}
return eof ? '\0' : buffer[pos++];
}
size_t Tell() const {
return offset + pos;
}
bool IsEnd() const {
return eof;
}
void Flush() {
assert(false);
}
void Put(Ch c) {
assert(false);
}
Ch* PutBegin() {
assert(false);
return 0;
}
size_t PutEnd(Ch* begin) {
assert(false);
return 0;
}
private:
void Read() {
Py_CLEAR(chunk);
chunk = PyObject_CallMethodObjArgs(stream, read_name, chunkSize, NULL);
if (chunk == NULL) {
eof = true;
} else {
Py_ssize_t len;
if (PyBytes_Check(chunk)) {
len = PyBytes_GET_SIZE(chunk);
buffer = PyBytes_AS_STRING(chunk);
} else {
buffer = PyUnicode_AsUTF8AndSize(chunk, &len);
if (buffer == NULL) {
len = 0;
}
}
if (len == 0) {
eof = true;
} else {
offset += chunkLen;
chunkLen = len;
pos = 0;
}
}
}
PyObject* stream;
PyObject* chunkSize;
PyObject* chunk;
const Ch* buffer;
size_t chunkLen;
size_t pos;
size_t offset;
bool eof;
};
class PyWriteStreamWrapper {
public:
typedef char Ch;
PyWriteStreamWrapper(PyObject* stream, size_t size)
: stream(stream) {
Py_INCREF(stream);
buffer = (char*) PyMem_Malloc(size);
assert(buffer);
bufferEnd = buffer + size;
cursor = buffer;
multiByteChar = NULL;
isBinary = !PyObject_HasAttr(stream, encoding_name);
}
~PyWriteStreamWrapper() {
Py_CLEAR(stream);
PyMem_Free(buffer);
}
Ch Peek() {
assert(false);
return 0;
}
Ch Take() {
assert(false);
return 0;
}
size_t Tell() const {
assert(false);
return 0;
}
void Flush() {
PyObject* c;
if (isBinary) {
c = PyBytes_FromStringAndSize(buffer, (size_t)(cursor - buffer));
cursor = buffer;
} else {
if (multiByteChar == NULL) {
c = PyUnicode_FromStringAndSize(buffer, (size_t)(cursor - buffer));
cursor = buffer;
} else {
size_t complete = (size_t)(multiByteChar - buffer);
c = PyUnicode_FromStringAndSize(buffer, complete);
size_t remaining = (size_t)(cursor - multiByteChar);
if (RAPIDJSON_LIKELY(remaining < complete))
memcpy(buffer, multiByteChar, remaining);
else
std::memmove(buffer, multiByteChar, remaining);
cursor = buffer + remaining;
multiByteChar = NULL;
}
}
if (c == NULL) {
// Propagate the error state, it will be caught by dumps_internal()
} else {
PyObject* res = PyObject_CallMethodObjArgs(stream, write_name, c, NULL);
if (res == NULL) {
// Likewise
} else {
Py_DECREF(res);
}
Py_DECREF(c);
}
}
void Put(Ch c) {
if (cursor == bufferEnd)
Flush();
if (!isBinary) {
if ((c & 0x80) == 0) {
multiByteChar = NULL;
} else if (c & 0x40) {
multiByteChar = cursor;
}
}
*cursor++ = c;
}
Ch* PutBegin() {
assert(false);
return 0;
}
size_t PutEnd(Ch* begin) {
assert(false);
return 0;
}
private:
PyObject* stream;
Ch* buffer;
Ch* bufferEnd;
Ch* cursor;
Ch* multiByteChar;
bool isBinary;
};
inline void PutUnsafe(PyWriteStreamWrapper& stream, char c) {
stream.Put(c);
}
/////////////
// RawJSON //
/////////////
typedef struct {
PyObject_HEAD
PyObject* value;
} RawJSON;
static void
RawJSON_dealloc(RawJSON* self)
{
Py_XDECREF(self->value);
Py_TYPE(self)->tp_free((PyObject*) self);
}
static PyObject*
RawJSON_new(PyTypeObject* type, PyObject* args, PyObject* kwds)
{
static char const* kwlist[] = {
"value",
NULL
};
PyObject* value = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "U", (char**) kwlist, &value))
return NULL;
PyObject* self = type->tp_alloc(type, 0);
if (self == NULL)
return NULL;
((RawJSON*) self)->value = value;
Py_INCREF(value);
return self;
}
static PyMemberDef RawJSON_members[] = {
{"value",
T_OBJECT_EX, offsetof(RawJSON, value), READONLY,
"string representing a serialized JSON object"},
{NULL} /* Sentinel */
};
PyDoc_STRVAR(rawjson_doc,
"Raw (preserialized) JSON object\n"
"\n"
"When rapidjson tries to serialize instances of this class, it will"
" use their literal `value`. For instance:\n"
">>> rapidjson.dumps(RawJSON('{\"already\": \"serialized\"}'))\n"
"'{\"already\": \"serialized\"}'");
static PyTypeObject RawJSON_Type = {
PyVarObject_HEAD_INIT(NULL, 0)
"rapidjson.RawJSON", /* tp_name */
sizeof(RawJSON), /* tp_basicsize */
0, /* tp_itemsize */
(destructor) RawJSON_dealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
rawjson_doc, /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
0, /* tp_methods */
RawJSON_members, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
0, /* tp_init */
0, /* tp_alloc */
RawJSON_new, /* tp_new */
};
static bool
accept_indent_arg(PyObject* arg, unsigned &write_mode, unsigned &indent_count,
char &indent_char)
{
if (arg != NULL && arg != Py_None) {
write_mode = WM_PRETTY;
if (PyLong_Check(arg) && PyLong_AsLong(arg) >= 0) {
indent_count = PyLong_AsUnsignedLong(arg);
} else if (PyUnicode_Check(arg)) {
Py_ssize_t len;
const char* indentStr = PyUnicode_AsUTF8AndSize(arg, &len);
indent_count = len;
if (indent_count) {
indent_char = '\0';
while (len--) {
char ch = indentStr[len];
if (ch == '\n' || ch == ' ' || ch == '\t' || ch == '\r') {
if (indent_char == '\0') {
indent_char = ch;
} else if (indent_char != ch) {
PyErr_SetString(
PyExc_TypeError,
"indent string cannot contains different chars");
return false;
}
} else {
PyErr_SetString(PyExc_TypeError,
"non-whitespace char in indent string");
return false;
}
}
}
} else {
PyErr_SetString(PyExc_TypeError,
"indent must be a non-negative int or a string");
return false;
}
}
return true;
}
static bool
accept_write_mode_arg(PyObject* arg, unsigned &write_mode)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (mode < 0 || mode >= WM_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid write_mode");
return false;
}
write_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError,
"write_mode must be a non-negative int");
return false;
}
}
return true;
}
static bool
accept_number_mode_arg(PyObject* arg, int allow_nan, unsigned &number_mode)
{
if (arg != NULL) {
if (arg == Py_None)
number_mode = NM_NONE;
else if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (mode < 0 || mode >= NM_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid number_mode, out of range");
return false;
}
number_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError,
"number_mode must be a non-negative int");
return false;
}
}
if (allow_nan != -1) {
if (allow_nan)
number_mode |= NM_NAN;
else
number_mode &= ~NM_NAN;
}
return true;
}
static bool
accept_datetime_mode_arg(PyObject* arg, unsigned &datetime_mode)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (!valid_datetime_mode(mode)) {
PyErr_SetString(PyExc_ValueError, "Invalid datetime_mode, out of range");
return false;
}
datetime_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError,
"datetime_mode must be a non-negative int");
return false;
}
}
return true;
}
static bool
accept_uuid_mode_arg(PyObject* arg, unsigned &uuid_mode)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (mode < 0 || mode >= UM_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid uuid_mode, out of range");
return false;
}
uuid_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError, "uuid_mode must be a non-negative int");
return false;
}
}
return true;
}
static bool
accept_bytes_mode_arg(PyObject* arg, unsigned &bytes_mode)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (mode < 0 || mode >= BM_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid bytes_mode, out of range");
return false;
}
bytes_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError, "bytes_mode must be a non-negative int");
return false;
}
}
return true;
}
static bool
accept_iterable_mode_arg(PyObject* arg, unsigned &iterable_mode)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (mode < 0 || mode >= IM_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid iterable_mode, out of range");
return false;
}
iterable_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError, "iterable_mode must be a non-negative int");
return false;
}
}
return true;
}
static bool
accept_mapping_mode_arg(PyObject* arg, unsigned &mapping_mode)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (mode < 0 || mode >= MM_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid mapping_mode, out of range");
return false;
}
mapping_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError, "mapping_mode must be a non-negative int");
return false;
}
}
return true;
}
static bool
accept_chunk_size_arg(PyObject* arg, size_t &chunk_size)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
Py_ssize_t size = PyNumber_AsSsize_t(arg, PyExc_ValueError);
if (PyErr_Occurred() || size < 4 || size > UINT_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid chunk_size, out of range");
return false;
}
chunk_size = (size_t) size;
} else {
PyErr_SetString(PyExc_TypeError,
"chunk_size must be a non-negative int");
return false;
}
}
return true;
}
static bool
accept_parse_mode_arg(PyObject* arg, unsigned &parse_mode)
{
if (arg != NULL && arg != Py_None) {
if (PyLong_Check(arg)) {
long mode = PyLong_AsLong(arg);
if (mode < 0 || mode >= PM_MAX) {
PyErr_SetString(PyExc_ValueError, "Invalid parse_mode, out of range");
return false;
}
parse_mode = (unsigned) mode;
} else {
PyErr_SetString(PyExc_TypeError,
"parse_mode must be a non-negative int");
return false;
}
}
return true;
}
/////////////
// Decoder //
/////////////
/* Adapted from CPython's Objects/floatobject.c::float_from_string_inner() */
static PyObject*
float_from_string(const char* s, Py_ssize_t len)
{
double x;
const char* end;
/* We don't care about overflow or underflow. If the platform
* supports them, infinities and signed zeroes (on underflow) are
* fine. */
x = PyOS_string_to_double(s, (char **) &end, NULL);
if (end != s + len) {
return NULL;
} else if (x == -1.0 && PyErr_Occurred()) {
return NULL;
} else {
return PyFloat_FromDouble(x);
}
}
struct PyHandler {
PyObject* decoderStartObject;
PyObject* decoderEndObject;
PyObject* decoderEndArray;
PyObject* decoderString;
PyObject* sharedKeys;
PyObject* root;
PyObject* objectHook;
unsigned datetimeMode;
unsigned uuidMode;
unsigned numberMode;
unsigned recursionLimit;
std::vector<HandlerContext> stack;
PyHandler(PyObject* decoder,
PyObject* hook,
unsigned dm,
unsigned um,
unsigned nm)
: decoderStartObject(NULL),
decoderEndObject(NULL),
decoderEndArray(NULL),
decoderString(NULL),
root(NULL),
objectHook(hook),
datetimeMode(dm),
uuidMode(um),
numberMode(nm)
{
stack.reserve(128);
if (decoder != NULL) {
assert(!objectHook);
if (PyObject_HasAttr(decoder, start_object_name)) {
decoderStartObject = PyObject_GetAttr(decoder, start_object_name);
}
if (PyObject_HasAttr(decoder, end_object_name)) {
decoderEndObject = PyObject_GetAttr(decoder, end_object_name);
}
if (PyObject_HasAttr(decoder, end_array_name)) {
decoderEndArray = PyObject_GetAttr(decoder, end_array_name);
}
if (PyObject_HasAttr(decoder, string_name)) {
decoderString = PyObject_GetAttr(decoder, string_name);
}
}
sharedKeys = PyDict_New();
recursionLimit = Py_GetRecursionLimit();
}
~PyHandler() {
while (!stack.empty()) {
const HandlerContext& ctx = stack.back();
if (ctx.copiedKey)
PyMem_Free((void*) ctx.key);
if (ctx.object != NULL)
Py_DECREF(ctx.object);
stack.pop_back();
}
Py_CLEAR(decoderStartObject);
Py_CLEAR(decoderEndObject);
Py_CLEAR(decoderEndArray);
Py_CLEAR(decoderString);
Py_CLEAR(sharedKeys);
}
bool Handle(PyObject* value) {
if (root) {
const HandlerContext& current = stack.back();
if (current.isObject) {
PyObject* key = PyUnicode_FromStringAndSize(current.key,
current.keyLength);
if (key == NULL) {
Py_DECREF(value);
return false;
}
PyObject* shared_key = PyDict_SetDefault(sharedKeys, key, key);
if (shared_key == NULL) {
Py_DECREF(key);
Py_DECREF(value);
return false;
}
Py_INCREF(shared_key);
Py_DECREF(key);
key = shared_key;
int rc;
if (current.keyValuePairs) {
PyObject* pair = PyTuple_Pack(2, key, value);
Py_DECREF(key);
Py_DECREF(value);
if (pair == NULL) {
return false;
}
rc = PyList_Append(current.object, pair);
Py_DECREF(pair);
} else {
if (PyDict_CheckExact(current.object))
// If it's a standard dictionary, this is +20% faster
rc = PyDict_SetItem(current.object, key, value);
else
rc = PyObject_SetItem(current.object, key, value);
Py_DECREF(key);
Py_DECREF(value);
}
if (rc == -1) {
return false;
}
} else {
int rc = PyList_Append(current.object, value);
Py_DECREF(value);
if (rc == -1) {
return false;
}
}
} else {
root = value;
}
return true;
}
bool Key(const char* str, SizeType length, bool copy) {
HandlerContext& current = stack.back();
// This happens when operating in stream mode and kParseInsituFlag is not set: we
// must copy the incoming string in the context, and destroy the duplicate when
// the context gets reused for the next dictionary key
if (current.key && current.copiedKey) {
PyMem_Free((void*) current.key);
current.key = NULL;
}
if (copy) {
char* copied_str = (char*) PyMem_Malloc(length+1);
if (copied_str == NULL)
return false;
memcpy(copied_str, str, length+1);
str = copied_str;
assert(!current.key);
}
current.key = str;
current.keyLength = length;
current.copiedKey = copy;
return true;
}
bool StartObject() {
if (recursionLimit-- == 0) {
PyErr_SetString(PyExc_RecursionError,
"Maximum parse recursion depth exceeded");
return false;
}
PyObject* mapping;
bool key_value_pairs;
if (decoderStartObject != NULL) {
mapping = PyObject_CallFunctionObjArgs(decoderStartObject, NULL);
if (mapping == NULL)
return false;
key_value_pairs = PyList_Check(mapping);
if (!PyMapping_Check(mapping) && !key_value_pairs) {
Py_DECREF(mapping);
PyErr_SetString(PyExc_ValueError,
"start_object() must return a mapping or a list instance");
return false;
}
} else {
mapping = PyDict_New();
if (mapping == NULL) {
return false;
}
key_value_pairs = false;
}
if (!Handle(mapping)) {
return false;
}
HandlerContext ctx;
ctx.isObject = true;
ctx.keyValuePairs = key_value_pairs;
ctx.object = mapping;
ctx.key = NULL;
ctx.copiedKey = false;
Py_INCREF(mapping);
stack.push_back(ctx);
return true;