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Code Issues Releases Wiki Activity

Merge branch 'feature/sax2' into develop #971

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This commit is contained in:
Niels Lohmann 2018-05-27 18:12:59 +02:00
commit cf9299d222
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14 changed files with 5150 additions and 1802 deletions
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3
Makefile
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@ -9,6 +9,7 @@ SRCS = include/nlohmann/json.hpp \
include/nlohmann/detail/exceptions.hpp \
include/nlohmann/detail/input/binary_reader.hpp \
include/nlohmann/detail/input/input_adapters.hpp \
include/nlohmann/detail/input/json_sax.hpp \
include/nlohmann/detail/input/lexer.hpp \
include/nlohmann/detail/input/parser.hpp \
include/nlohmann/detail/iterators/internal_iterator.hpp \
@ -84,7 +85,7 @@ coverage:
mkdir build_coverage
cd build_coverage ; CXX=g++-5 cmake .. -GNinja -DJSON_Coverage=ON -DJSON_MultipleHeaders=ON
cd build_coverage ; ninja
cd build_coverage ; ctest -j10
cd build_coverage ; ctest -E '.*_default' -j10
cd build_coverage ; ninja lcov_html
open build_coverage/test/html/index.html

998
include/nlohmann/detail/input/binary_reader.hpp
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File diff suppressed because it is too large Load Diff

95
include/nlohmann/detail/input/input_adapters.hpp
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@ -1,11 +1,8 @@
#pragma once
#include <algorithm> // min
#include <array> // array
#include <cassert> // assert
#include <cstddef> // size_t
#include <cstring> // strlen
#include <ios> // streamsize, streamoff, streampos
#include <istream> // istream
#include <iterator> // begin, end, iterator_traits, random_access_iterator_tag, distance, next
#include <memory> // shared_ptr, make_shared, addressof
@ -20,6 +17,9 @@ namespace nlohmann
{
namespace detail
{
/// the supported input formats
enum class input_format_t { json, cbor, msgpack, ubjson };
////////////////////
// input adapters //
////////////////////
@ -28,19 +28,17 @@ namespace detail
@brief abstract input adapter interface
Produces a stream of std::char_traits<char>::int_type characters from a
std::istream, a buffer, or some other input type. Accepts the return of exactly
one non-EOF character for future input. The int_type characters returned
consist of all valid char values as positive values (typically unsigned char),
plus an EOF value outside that range, specified by the value of the function
std::char_traits<char>::eof(). This value is typically -1, but could be any
arbitrary value which is not a valid char value.
std::istream, a buffer, or some other input type. Accepts the return of
exactly one non-EOF character for future input. The int_type characters
returned consist of all valid char values as positive values (typically
unsigned char), plus an EOF value outside that range, specified by the value
of the function std::char_traits<char>::eof(). This value is typically -1, but
could be any arbitrary value which is not a valid char value.
*/
struct input_adapter_protocol
{
/// get a character [0,255] or std::char_traits<char>::eof().
virtual std::char_traits<char>::int_type get_character() = 0;
/// restore the last non-eof() character to input
virtual void unget_character() = 0;
virtual ~input_adapter_protocol() = default;
};
@ -68,34 +66,7 @@ class input_stream_adapter : public input_adapter_protocol
explicit input_stream_adapter(std::istream& i)
: is(i), sb(*i.rdbuf())
{
// skip byte order mark
std::char_traits<char>::int_type c;
if ((c = get_character()) == 0xEF)
{
if ((c = get_character()) == 0xBB)
{
if ((c = get_character()) == 0xBF)
{
return; // Ignore BOM
}
else if (c != std::char_traits<char>::eof())
{
is.unget();
}
is.putback('\xBB');
}
else if (c != std::char_traits<char>::eof())
{
is.unget();
}
is.putback('\xEF');
}
else if (c != std::char_traits<char>::eof())
{
is.unget(); // no byte order mark; process as usual
}
}
{}
// delete because of pointer members
input_stream_adapter(const input_stream_adapter&) = delete;
@ -109,11 +80,6 @@ class input_stream_adapter : public input_adapter_protocol
return sb.sbumpc();
}
void unget_character() override
{
sb.sungetc(); // is.unget() avoided for performance
}
private:
/// the associated input stream
std::istream& is;
@ -125,14 +91,8 @@ class input_buffer_adapter : public input_adapter_protocol
{
public:
input_buffer_adapter(const char* b, const std::size_t l)
: cursor(b), limit(b + l), start(b)
{
// skip byte order mark
if (l >= 3 and b[0] == '\xEF' and b[1] == '\xBB' and b[2] == '\xBF')
{
cursor += 3;
}
}
: cursor(b), limit(b + l)
{}
// delete because of pointer members
input_buffer_adapter(const input_buffer_adapter&) = delete;
@ -148,21 +108,11 @@ class input_buffer_adapter : public input_adapter_protocol
return std::char_traits<char>::eof();
}
void unget_character() noexcept override
{
if (JSON_LIKELY(cursor > start))
{
--cursor;
}
}
private:
/// pointer to the current character
const char* cursor;
/// pointer past the last character
const char* limit;
/// pointer to the first character
const char* start;
const char* const limit;
};
template<typename WideStringType>
@ -173,13 +123,6 @@ class wide_string_input_adapter : public input_adapter_protocol
std::char_traits<char>::int_type get_character() noexcept override
{
// unget_character() was called previously: return the last character
if (next_unget)
{
next_unget = false;
return last_char;
}
// check if buffer needs to be filled
if (utf8_bytes_index == utf8_bytes_filled)
{
@ -199,12 +142,7 @@ class wide_string_input_adapter : public input_adapter_protocol
// use buffer
assert(utf8_bytes_filled > 0);
assert(utf8_bytes_index < utf8_bytes_filled);
return (last_char = utf8_bytes[utf8_bytes_index++]);
}
void unget_character() noexcept override
{
next_unget = true;
return utf8_bytes[utf8_bytes_index++];
}
private:
@ -328,11 +266,6 @@ class wide_string_input_adapter : public input_adapter_protocol
std::size_t utf8_bytes_index = 0;
/// number of valid bytes in the utf8_codes array
std::size_t utf8_bytes_filled = 0;
/// the last character (returned after unget_character() is called)
std::char_traits<char>::int_type last_char = 0;
/// whether get_character() should return last_char
bool next_unget = false;
};
class input_adapter

689
include/nlohmann/detail/input/json_sax.hpp Normal file
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@ -0,0 +1,689 @@
#pragma once
#include <cstddef>
#include <string>
#include <vector>
#include <nlohmann/detail/input/parser.hpp>
#include <nlohmann/detail/exceptions.hpp>
namespace nlohmann
{
/*!
@brief SAX interface
*/
template<typename BasicJsonType>
struct json_sax
{
/// type for (signed) integers
using number_integer_t = typename BasicJsonType::number_integer_t;
/// type for unsigned integers
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
/// type for floating-point numbers
using number_float_t = typename BasicJsonType::number_float_t;
/// type for strings
using string_t = typename BasicJsonType::string_t;
/// constant to indicate that no size limit is given for array or object
static constexpr auto no_limit = std::size_t(-1);
/*!
@brief a null value was read
@return whether parsing should proceed
*/
virtual bool null() = 0;
/*!
@brief a boolean value was read
@param[in] val boolean value
@return whether parsing should proceed
*/
virtual bool boolean(bool val) = 0;
/*!
@brief an integer number was read
@param[in] val integer value
@return whether parsing should proceed
*/
virtual bool number_integer(number_integer_t val) = 0;
/*!
@brief an unsigned integer number was read
@param[in] val unsigned integer value
@return whether parsing should proceed
*/
virtual bool number_unsigned(number_unsigned_t val) = 0;
/*!
@brief an floating-point number was read
@param[in] val floating-point value
@param[in] s raw token value
@return whether parsing should proceed
*/
virtual bool number_float(number_float_t val, const string_t& s) = 0;
/*!
@brief a string was read
@param[in] val string value
@return whether parsing should proceed
*/
virtual bool string(string_t& val) = 0;
/*!
@brief the beginning of an object was read
@param[in] elements number of object elements or no_limit if unknown
@return whether parsing should proceed
@note binary formats may report the number of elements
*/
virtual bool start_object(std::size_t elements = no_limit) = 0;
/*!
@brief an object key was read
@param[in] val object key
@return whether parsing should proceed
*/
virtual bool key(string_t& val) = 0;
/*!
@brief the end of an object was read
@return whether parsing should proceed
*/
virtual bool end_object() = 0;
/*!
@brief the beginning of an array was read
@param[in] elements number of array elements or no_limit if unknown
@return whether parsing should proceed
@note binary formats may report the number of elements
*/
virtual bool start_array(std::size_t elements = no_limit) = 0;
/*!
@brief the end of an array was read
@return whether parsing should proceed
*/
virtual bool end_array() = 0;
/*!
@brief a parse error occurred
@param[in] position the position in the input where the error occurs
@param[in] last_token the last read token
@param[in] error_msg a detailed error message
@return whether parsing should proceed (must return false)
*/
virtual bool parse_error(std::size_t position,
const std::string& last_token,
const detail::exception& ex) = 0;
virtual ~json_sax() = default;
};
namespace detail
{
/*!
@brief SAX implementation to create a JSON value from SAX events
This class implements the @ref json_sax interface and processes the SAX events
to create a JSON value which makes it basically a DOM parser. The structure or
hierarchy of the JSON value is managed by the stack `ref_stack` which contains
a pointer to the respective array or object for each recursion depth.
After successful parsing, the value that is passed by reference to the
constructor contains the parsed value.
@tparam BasicJsonType the JSON type
*/
template<typename BasicJsonType>
class json_sax_dom_parser : public json_sax<BasicJsonType>
{
public:
using number_integer_t = typename BasicJsonType::number_integer_t;
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
using number_float_t = typename BasicJsonType::number_float_t;
using string_t = typename BasicJsonType::string_t;
/*!
@param[in, out] r reference to a JSON value that is manipulated while
parsing
@param[in] allow_exceptions_ whether parse errors yield exceptions
*/
json_sax_dom_parser(BasicJsonType& r, const bool allow_exceptions_ = true)
: root(r), allow_exceptions(allow_exceptions_)
{}
bool null() override
{
handle_value(nullptr);
return true;
}
bool boolean(bool val) override
{
handle_value(val);
return true;
}
bool number_integer(number_integer_t val) override
{
handle_value(val);
return true;
}
bool number_unsigned(number_unsigned_t val) override
{
handle_value(val);
return true;
}
bool number_float(number_float_t val, const string_t&) override
{
handle_value(val);
return true;
}
bool string(string_t& val) override
{
handle_value(val);
return true;
}
bool start_object(std::size_t len) override
{
ref_stack.push_back(handle_value(BasicJsonType::value_t::object));
if (JSON_UNLIKELY(len != json_sax<BasicJsonType>::no_limit and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive object size: " + std::to_string(len)));
}
return true;
}
bool key(string_t& val) override
{
// add null at given key and store the reference for later
object_element = &(ref_stack.back()->m_value.object->operator[](val));
return true;
}
bool end_object() override
{
ref_stack.pop_back();
return true;
}
bool start_array(std::size_t len) override
{
ref_stack.push_back(handle_value(BasicJsonType::value_t::array));
if (JSON_UNLIKELY(len != json_sax<BasicJsonType>::no_limit and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive array size: " + std::to_string(len)));
}
return true;
}
bool end_array() override
{
ref_stack.pop_back();
return true;
}
bool parse_error(std::size_t, const std::string&,
const detail::exception& ex) override
{
errored = true;
if (allow_exceptions)
{
// determine the proper exception type from the id
switch ((ex.id / 100) % 100)
{
case 1:
JSON_THROW(*reinterpret_cast<const detail::parse_error*>(&ex));
case 2:
JSON_THROW(*reinterpret_cast<const detail::invalid_iterator*>(&ex)); // LCOV_EXCL_LINE
case 3:
JSON_THROW(*reinterpret_cast<const detail::type_error*>(&ex)); // LCOV_EXCL_LINE
case 4:
JSON_THROW(*reinterpret_cast<const detail::out_of_range*>(&ex));
case 5:
JSON_THROW(*reinterpret_cast<const detail::other_error*>(&ex)); // LCOV_EXCL_LINE
default:
assert(false); // LCOV_EXCL_LINE
}
}
return false;
}
constexpr bool is_errored() const
{
return errored;
}
private:
/*!
@invariant If the ref stack is empty, then the passed value will be the new
root.
@invariant If the ref stack contains a value, then it is an array or an
object to which we can add elements
*/
template<typename Value>
BasicJsonType* handle_value(Value&& v)
{
if (ref_stack.empty())
{
root = BasicJsonType(std::forward<Value>(v));
return &root;
}
else
{
assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
if (ref_stack.back()->is_array())
{
ref_stack.back()->m_value.array->emplace_back(std::forward<Value>(v));
return &(ref_stack.back()->m_value.array->back());
}
else
{
assert(object_element);
*object_element = BasicJsonType(std::forward<Value>(v));
return object_element;
}
}
}
/// the parsed JSON value
BasicJsonType& root;
/// stack to model hierarchy of values
std::vector<BasicJsonType*> ref_stack;
/// helper to hold the reference for the next object element
BasicJsonType* object_element = nullptr;
/// whether a syntax error occurred
bool errored = false;
/// whether to throw exceptions in case of errors
const bool allow_exceptions = true;
};
template<typename BasicJsonType>
class json_sax_dom_callback_parser : public json_sax<BasicJsonType>
{
public:
using number_integer_t = typename BasicJsonType::number_integer_t;
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
using number_float_t = typename BasicJsonType::number_float_t;
using string_t = typename BasicJsonType::string_t;
using parser_callback_t = typename BasicJsonType::parser_callback_t;
using parse_event_t = typename BasicJsonType::parse_event_t;
json_sax_dom_callback_parser(BasicJsonType& r,
const parser_callback_t cb,
const bool allow_exceptions_ = true)
: root(r), callback(cb), allow_exceptions(allow_exceptions_)
{
keep_stack.push_back(true);
}
bool null() override
{
handle_value(nullptr);
return true;
}
bool boolean(bool val) override
{
handle_value(val);
return true;
}
bool number_integer(number_integer_t val) override
{
handle_value(val);
return true;
}
bool number_unsigned(number_unsigned_t val) override
{
handle_value(val);
return true;
}
bool number_float(number_float_t val, const string_t&) override
{
handle_value(val);
return true;
}
bool string(string_t& val) override
{
handle_value(val);
return true;
}
bool start_object(std::size_t len) override
{
// check callback for object start
const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::object_start, discarded);
keep_stack.push_back(keep);
auto val = handle_value(BasicJsonType::value_t::object, true);
ref_stack.push_back(val.second);
// check object limit
if (ref_stack.back())
{
if (JSON_UNLIKELY(len != json_sax<BasicJsonType>::no_limit and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive object size: " + std::to_string(len)));
}
}
return true;
}
bool key(string_t& val) override
{
BasicJsonType k = BasicJsonType(val);
// check callback for key
const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::key, k);
key_keep_stack.push_back(keep);
// add discarded value at given key and store the reference for later
if (keep and ref_stack.back())
{
object_element = &(ref_stack.back()->m_value.object->operator[](val) = discarded);
}
return true;
}
bool end_object() override
{
bool keep = true;
if (ref_stack.back())
{
keep = callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::object_end, *ref_stack.back());
if (not keep)
{
// discard object
*ref_stack.back() = discarded;
}
}
assert(not ref_stack.empty());
assert(not keep_stack.empty());
ref_stack.pop_back();
keep_stack.pop_back();
if (not ref_stack.empty() and ref_stack.back())
{
// remove discarded value
if (ref_stack.back()->is_object())
{
for (auto it = ref_stack.back()->begin(); it != ref_stack.back()->end(); ++it)
{
if (it->is_discarded())
{
ref_stack.back()->erase(it);
break;
}
}
}
}
return true;
}
bool start_array(std::size_t len) override
{
const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::array_start, discarded);
keep_stack.push_back(keep);
auto val = handle_value(BasicJsonType::value_t::array, true);
ref_stack.push_back(val.second);
// check array limit
if (ref_stack.back())
{
if (JSON_UNLIKELY(len != json_sax<BasicJsonType>::no_limit and len > ref_stack.back()->max_size()))
{
JSON_THROW(out_of_range::create(408,
"excessive array size: " + std::to_string(len)));
}
}
return true;
}
bool end_array() override
{
bool keep = true;
if (ref_stack.back())
{
keep = callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::array_end, *ref_stack.back());
if (not keep)
{
// discard array
*ref_stack.back() = discarded;
}
}
assert(not ref_stack.empty());
assert(not keep_stack.empty());
ref_stack.pop_back();
keep_stack.pop_back();
// remove discarded value
if (not keep and not ref_stack.empty())
{
if (ref_stack.back()->is_array())
{
ref_stack.back()->m_value.array->pop_back();
}
}
return true;
}
bool parse_error(std::size_t, const std::string&,
const detail::exception& ex) override
{
errored = true;
if (allow_exceptions)
{
// determine the proper exception type from the id
switch ((ex.id / 100) % 100)
{
case 1:
JSON_THROW(*reinterpret_cast<const detail::parse_error*>(&ex));
case 2:
JSON_THROW(*reinterpret_cast<const detail::invalid_iterator*>(&ex)); // LCOV_EXCL_LINE
case 3:
JSON_THROW(*reinterpret_cast<const detail::type_error*>(&ex)); // LCOV_EXCL_LINE
case 4:
JSON_THROW(*reinterpret_cast<const detail::out_of_range*>(&ex));
case 5:
JSON_THROW(*reinterpret_cast<const detail::other_error*>(&ex)); // LCOV_EXCL_LINE
default:
assert(false); // LCOV_EXCL_LINE
}
}
return false;
}
constexpr bool is_errored() const
{
return errored;
}
private:
/*!
@param[in] v value to add to the JSON value we build during parsing
@param[in] skip_callback whether we should skip calling the callback
function; this is required after start_array() and
start_object() SAX events, because otherwise we would call the
callback function with an empty array or object, respectively.
@invariant If the ref stack is empty, then the passed value will be the new
root.
@invariant If the ref stack contains a value, then it is an array or an
object to which we can add elements
@return pair of boolean (whether value should be kept) and pointer (to the
passed value in the ref_stack hierarchy; nullptr if not kept)
*/
template<typename Value>
std::pair<bool, BasicJsonType*> handle_value(Value&& v, const bool skip_callback = false)
{
assert(not keep_stack.empty());
// do not handle this value if we know it would be added to a discarded
// container
if (not keep_stack.back())
{
return {false, nullptr};
}
// create value
auto value = BasicJsonType(std::forward<Value>(v));
// check callback
const bool keep = skip_callback or callback(static_cast<int>(ref_stack.size()), parse_event_t::value, value);
// do not handle this value if we just learnt it shall be discarded
if (not keep)
{
return {false, nullptr};
}
if (ref_stack.empty())
{
root = std::move(value);
return {true, &root};
}
else
{
assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
if (ref_stack.back()->is_array())
{
ref_stack.back()->m_value.array->push_back(std::move(value));
return {true, &(ref_stack.back()->m_value.array->back())};
}
else
{
// check if we should store an element for the current key
assert(not key_keep_stack.empty());
const bool store_element = key_keep_stack.back();
key_keep_stack.pop_back();
if (not store_element)
{
return {false, nullptr};
}
assert(object_element);
*object_element = std::move(value);
return {true, object_element};
}
}
}
/// the parsed JSON value
BasicJsonType& root;
/// stack to model hierarchy of values
std::vector<BasicJsonType*> ref_stack;
/// stack to manage which values to keep
std::vector<bool> keep_stack;
/// stack to manage which object keys to keep
std::vector<bool> key_keep_stack;
/// helper to hold the reference for the next object element
BasicJsonType* object_element = nullptr;
/// whether a syntax error occurred
bool errored = false;
/// callback function
const parser_callback_t callback = nullptr;
/// whether to throw exceptions in case of errors
const bool allow_exceptions = true;
/// a discarded value for the callback
BasicJsonType discarded = BasicJsonType::value_t::discarded;
};
template<typename BasicJsonType>
class json_sax_acceptor : public json_sax<BasicJsonType>
{
public:
using number_integer_t = typename BasicJsonType::number_integer_t;
using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
using number_float_t = typename BasicJsonType::number_float_t;
using string_t = typename BasicJsonType::string_t;
bool null() override
{
return true;
}
bool boolean(bool) override
{
return true;
}
bool number_integer(number_integer_t) override
{
return true;
}
bool number_unsigned(number_unsigned_t) override
{
return true;
}
bool number_float(number_float_t, const string_t&) override
{
return true;
}
bool string(string_t&) override
{
return true;
}
bool start_object(std::size_t) override
{
return true;
}
bool key(string_t&) override
{
return true;
}
bool end_object() override
{
return true;
}
bool start_array(std::size_t) override
{
return true;
}
bool end_array() override
{
return true;
}
bool parse_error(std::size_t, const std::string&, const detail::exception&) override
{
return false;
}
};
}
}

66
include/nlohmann/detail/input/lexer.hpp
View File

@ -99,7 +99,7 @@ class lexer
}
}
explicit lexer(detail::input_adapter_t adapter)
explicit lexer(detail::input_adapter_t&& adapter)
: ia(std::move(adapter)), decimal_point_char(get_decimal_point()) {}
// delete because of pointer members
@ -1081,7 +1081,16 @@ scan_number_done:
std::char_traits<char>::int_type get()
{
++chars_read;
current = ia->get_character();
if (next_unget)
{
// just reset the next_unget variable and work with current
next_unget = false;
}
else
{
current = ia->get_character();
}
if (JSON_LIKELY(current != std::char_traits<char>::eof()))
{
token_string.push_back(std::char_traits<char>::to_char_type(current));
@ -1089,13 +1098,20 @@ scan_number_done:
return current;
}
/// unget current character (return it again on next get)
/*!
@brief unget current character (read it again on next get)
We implement unget by setting variable next_unget to true. The input is not
changed - we just simulate ungetting by modifying chars_read and
token_string. The next call to get() will behave as if the unget character
is read again.
*/
void unget()
{
next_unget = true;
--chars_read;
if (JSON_LIKELY(current != std::char_traits<char>::eof()))
{
ia->unget_character();
assert(token_string.size() != 0);
token_string.pop_back();
}
@ -1131,9 +1147,9 @@ scan_number_done:
}
/// return current string value (implicitly resets the token; useful only once)
string_t&& move_string()
string_t& get_string()
{
return std::move(token_buffer);
return token_buffer;
}
/////////////////////
@ -1183,8 +1199,43 @@ scan_number_done:
// actual scanner
/////////////////////
/*!
@brief skip the UTF-8 byte order mark
@return true iff there is no BOM or the correct BOM has been skipped
*/
bool skip_bom()
{
if (get() == 0xEF)
{
if (get() == 0xBB and get() == 0xBF)
{
// we completely parsed the BOM
return true;
}
else
{
// after reading 0xEF, an unexpected character followed
return false;
}
}
else
{
// the first character is not the beginning of the BOM; unget it to
// process is later
unget();
return true;
}
}
token_type scan()
{
// initially, skip the BOM
if (chars_read == 0 and not skip_bom())
{
error_message = "invalid BOM; must be 0xEF 0xBB 0xBF if given";
return token_type::parse_error;
}
// read next character and ignore whitespace
do
{
@ -1254,6 +1305,9 @@ scan_number_done:
/// the current character
std::char_traits<char>::int_type current = std::char_traits<char>::eof();
/// whether the next get() call should just return current
bool next_unget = false;
/// the number of characters read
std::size_t chars_read = 0;

729
include/nlohmann/detail/input/parser.hpp
View File

@ -10,6 +10,7 @@
#include <nlohmann/detail/exceptions.hpp>
#include <nlohmann/detail/macro_scope.hpp>
#include <nlohmann/detail/input/input_adapters.hpp>
#include <nlohmann/detail/input/json_sax.hpp>
#include <nlohmann/detail/input/lexer.hpp>
#include <nlohmann/detail/value_t.hpp>
@ -53,15 +54,20 @@ class parser
value
};
using json_sax_t = json_sax<BasicJsonType>;
using parser_callback_t =
std::function<bool(int depth, parse_event_t event, BasicJsonType& parsed)>;
/// a parser reading from an input adapter
explicit parser(detail::input_adapter_t adapter,
explicit parser(detail::input_adapter_t&& adapter,
const parser_callback_t cb = nullptr,
const bool allow_exceptions_ = true)
: callback(cb), m_lexer(adapter), allow_exceptions(allow_exceptions_)
{}
: callback(cb), m_lexer(std::move(adapter)), allow_exceptions(allow_exceptions_)
{
// read first token
get_token();
}
/*!
@brief public parser interface
@ -75,31 +81,54 @@ class parser
*/
void parse(const bool strict, BasicJsonType& result)
{
// read first token
get_token();
parse_internal(true, result);
result.assert_invariant();
// in strict mode, input must be completely read
if (strict)
if (callback)
{
get_token();
expect(token_type::end_of_input);
json_sax_dom_callback_parser<BasicJsonType> sdp(result, callback, allow_exceptions);
sax_parse_internal(&sdp);
result.assert_invariant();
// in strict mode, input must be completely read
if (strict and (get_token() != token_type::end_of_input))
{
sdp.parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input)));
}
// in case of an error, return discarded value
if (sdp.is_errored())
{
result = value_t::discarded;
return;
}
// set top-level value to null if it was discarded by the callback
// function
if (result.is_discarded())
{
result = nullptr;
}
}
// in case of an error, return discarded value
if (errored)
else
{
result = value_t::discarded;
return;
}
json_sax_dom_parser<BasicJsonType> sdp(result, allow_exceptions);
sax_parse_internal(&sdp);
result.assert_invariant();
// set top-level value to null if it was discarded by the callback
// function
if (result.is_discarded())
{
result = nullptr;
// in strict mode, input must be completely read
if (strict and (get_token() != token_type::end_of_input))
{
sdp.parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input)));
}
// in case of an error, return discarded value
if (sdp.is_errored())
{
result = value_t::discarded;
return;
}
}
}
@ -111,414 +140,308 @@ class parser
*/
bool accept(const bool strict = true)
{
// read first token
get_token();
json_sax_acceptor<BasicJsonType> sax_acceptor;
return sax_parse(&sax_acceptor, strict);
}
if (not accept_internal())
bool sax_parse(json_sax_t* sax, const bool strict = true)
{
const bool result = sax_parse_internal(sax);
// strict mode: next byte must be EOF
if (result and strict and (get_token() != token_type::end_of_input))
{
return false;
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_of_input)));
}
// strict => last token must be EOF
return not strict or (get_token() == token_type::end_of_input);
return result;
}
private:
/*!
@brief the actual parser
@throw parse_error.101 in case of an unexpected token
@throw parse_error.102 if to_unicode fails or surrogate error
@throw parse_error.103 if to_unicode fails
*/
void parse_internal(bool keep, BasicJsonType& result)
bool sax_parse_internal(json_sax_t* sax)
{
// never parse after a parse error was detected
assert(not errored);
// stack to remember the hieararchy of structured values we are parsing
// true = array; false = object
std::vector<bool> states;
// value to avoid a goto (see comment where set to true)
bool skip_to_state_evaluation = false;
// start with a discarded value
if (not result.is_discarded())
while (true)
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
switch (last_token)
{
case token_type::begin_object:
if (not skip_to_state_evaluation)
{
if (keep)
// invariant: get_token() was called before each iteration
switch (last_token)
{
if (callback)
case token_type::begin_object:
{
keep = callback(depth++, parse_event_t::object_start, result);
}
if (not callback or keep)
{
// explicitly set result to object to cope with {}
result.m_type = value_t::object;
result.m_value = value_t::object;
}
}
// read next token
get_token();
// closing } -> we are done
if (last_token == token_type::end_object)
{
if (keep and callback and not callback(--depth, parse_event_t::object_end, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
// parse values
string_t key;
BasicJsonType value;
while (true)
{
// store key
if (not expect(token_type::value_string))
{
return;
}
key = m_lexer.move_string();
bool keep_tag = false;
if (keep)
{
if (callback)
if (JSON_UNLIKELY(not sax->start_object()))
{
BasicJsonType k(key);
keep_tag = callback(depth, parse_event_t::key, k);
return false;
}
// closing } -> we are done
if (get_token() == token_type::end_object)
{
if (JSON_UNLIKELY(not sax->end_object()))
{
return false;
}
break;
}
// parse key
if (JSON_UNLIKELY(last_token != token_type::value_string))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string)));
}
else
{
keep_tag = true;
if (JSON_UNLIKELY(not sax->key(m_lexer.get_string())))
{
return false;
}
}
// parse separator (:)
if (JSON_UNLIKELY(get_token() != token_type::name_separator))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator)));
}
// remember we are now inside an object
states.push_back(false);
// parse values
get_token();
continue;
}
case token_type::begin_array:
{
if (JSON_UNLIKELY(not sax->start_array()))
{
return false;
}
// closing ] -> we are done
if (get_token() == token_type::end_array)
{
if (JSON_UNLIKELY(not sax->end_array()))
{
return false;
}
break;
}
// remember we are now inside an array
states.push_back(true);
// parse values (no need to call get_token)
continue;
}
case token_type::value_float:
{
const auto res = m_lexer.get_number_float();
if (JSON_UNLIKELY(not std::isfinite(res)))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
out_of_range::create(406, "number overflow parsing '" + m_lexer.get_token_string() + "'"));
}
else
{
if (JSON_UNLIKELY(not sax->number_float(res, m_lexer.get_string())))
{
return false;
}
break;
}
}
// parse separator (:)
get_token();
if (not expect(token_type::name_separator))
case token_type::literal_false:
{
return;
if (JSON_UNLIKELY(not sax->boolean(false)))
{
return false;
}
break;
}
// parse and add value
get_token();
value.m_value.destroy(value.m_type);
value.m_type = value_t::discarded;
parse_internal(keep, value);
if (JSON_UNLIKELY(errored))
case token_type::literal_null:
{
return;
if (JSON_UNLIKELY(not sax->null()))
{
return false;
}
break;
}
if (keep and keep_tag and not value.is_discarded())
case token_type::literal_true:
{
result.m_value.object->emplace(std::move(key), std::move(value));
if (JSON_UNLIKELY(not sax->boolean(true)))
{
return false;
}
break;
}
// comma -> next value
get_token();
if (last_token == token_type::value_separator)
case token_type::value_integer:
{
get_token();
continue;
if (JSON_UNLIKELY(not sax->number_integer(m_lexer.get_number_integer())))
{
return false;
}
break;
}
// closing }
if (not expect(token_type::end_object))
case token_type::value_string:
{
return;
}
break;
}
if (keep and callback and not callback(--depth, parse_event_t::object_end, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
case token_type::begin_array:
{
if (keep)
{
if (callback)
{
keep = callback(depth++, parse_event_t::array_start, result);
if (JSON_UNLIKELY(not sax->string(m_lexer.get_string())))
{
return false;
}
break;
}
if (not callback or keep)
case token_type::value_unsigned:
{
// explicitly set result to array to cope with []
result.m_type = value_t::array;
result.m_value = value_t::array;
if (JSON_UNLIKELY(not sax->number_unsigned(m_lexer.get_number_unsigned())))
{
return false;
}
break;
}
case token_type::parse_error:
{
// using "uninitialized" to avoid "expected" message
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::uninitialized)));
}
default: // the last token was unexpected
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::literal_or_value)));
}
}
// read next token
get_token();
// closing ] -> we are done
if (last_token == token_type::end_array)
{
if (callback and not callback(--depth, parse_event_t::array_end, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
// parse values
BasicJsonType value;
while (true)
{
// parse value
value.m_value.destroy(value.m_type);
value.m_type = value_t::discarded;
parse_internal(keep, value);
if (JSON_UNLIKELY(errored))
{
return;
}
if (keep and not value.is_discarded())
{
result.m_value.array->push_back(std::move(value));
}
// comma -> next value
get_token();
if (last_token == token_type::value_separator)
{
get_token();
continue;
}
// closing ]
if (not expect(token_type::end_array))
{
return;
}
break;
}
if (keep and callback and not callback(--depth, parse_event_t::array_end, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
break;
}
case token_type::literal_null:
else
{
result.m_type = value_t::null;
break;
skip_to_state_evaluation = false;
}
case token_type::value_string:
// we reached this line after we successfully parsed a value
if (states.empty())
{
result.m_type = value_t::string;
result.m_value = m_lexer.move_string();
break;
}
case token_type::literal_true:
{
result.m_type = value_t::boolean;
result.m_value = true;
break;
}
case token_type::literal_false:
{
result.m_type = value_t::boolean;
result.m_value = false;
break;
}
case token_type::value_unsigned:
{
result.m_type = value_t::number_unsigned;
result.m_value = m_lexer.get_number_unsigned();
break;
}
case token_type::value_integer:
{
result.m_type = value_t::number_integer;
result.m_value = m_lexer.get_number_integer();
break;
}
case token_type::value_float:
{
result.m_type = value_t::number_float;
result.m_value = m_lexer.get_number_float();
// throw in case of infinity or NAN
if (JSON_UNLIKELY(not std::isfinite(result.m_value.number_float)))
{
if (allow_exceptions)
{
JSON_THROW(out_of_range::create(406, "number overflow parsing '" +
m_lexer.get_token_string() + "'"));
}
expect(token_type::uninitialized);
}
break;
}
case token_type::parse_error:
{
// using "uninitialized" to avoid "expected" message
if (not expect(token_type::uninitialized))
{
return;
}
break; // LCOV_EXCL_LINE
}
default:
{
// the last token was unexpected; we expected a value
if (not expect(token_type::literal_or_value))
{
return;
}
break; // LCOV_EXCL_LINE
}
}
if (keep and callback and not callback(depth, parse_event_t::value, result))
{
result.m_value.destroy(result.m_type);
result.m_type = value_t::discarded;
}
}
/*!
@brief the actual acceptor
@invariant 1. The last token is not yet processed. Therefore, the caller
of this function must make sure a token has been read.
2. When this function returns, the last token is processed.
That is, the last read character was already considered.
This invariant makes sure that no token needs to be "unput".
*/
bool accept_internal()
{
switch (last_token)
{
case token_type::begin_object:
{
// read next token
get_token();
// closing } -> we are done
if (last_token == token_type::end_object)
{
return true;
}
// parse values
while (true)
{
// parse key
if (last_token != token_type::value_string)
{
return false;
}
// parse separator (:)
get_token();
if (last_token != token_type::name_separator)
{
return false;
}
// parse value
get_token();
if (not accept_internal())
{
return false;
}
// comma -> next value
get_token();
if (last_token == token_type::value_separator)
{
get_token();
continue;
}
// closing }
return (last_token == token_type::end_object);
}
}
case token_type::begin_array:
{
// read next token
get_token();
// closing ] -> we are done
if (last_token == token_type::end_array)
{
return true;
}
// parse values
while (true)
{
// parse value
if (not accept_internal())
{
return false;
}
// comma -> next value
get_token();
if (last_token == token_type::value_separator)
{
get_token();
continue;
}
// closing ]
return (last_token == token_type::end_array);
}
}
case token_type::value_float:
{
// reject infinity or NAN
return std::isfinite(m_lexer.get_number_float());
}
case token_type::literal_false:
case token_type::literal_null:
case token_type::literal_true:
case token_type::value_integer:
case token_type::value_string:
case token_type::value_unsigned:
// empty stack: we reached the end of the hieararchy: done
return true;
}
else
{
if (states.back()) // array
{
// comma -> next value
if (get_token() == token_type::value_separator)
{
// parse a new value
get_token();
continue;
}
default: // the last token was unexpected
return false;
// closing ]
if (JSON_LIKELY(last_token == token_type::end_array))
{
if (JSON_UNLIKELY(not sax->end_array()))
{
return false;
}
// We are done with this array. Before we can parse a
// new value, we need to evaluate the new state first.
// By setting skip_to_state_evaluation to false, we
// are effectively jumping to the beginning of this if.
assert(not states.empty());
states.pop_back();
skip_to_state_evaluation = true;
continue;
}
else
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_array)));
}
}
else // object
{
// comma -> next value
if (get_token() == token_type::value_separator)
{
// parse key
if (JSON_UNLIKELY(get_token() != token_type::value_string))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::value_string)));
}
else
{
if (JSON_UNLIKELY(not sax->key(m_lexer.get_string())))
{
return false;
}
}
// parse separator (:)
if (JSON_UNLIKELY(get_token() != token_type::name_separator))
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::name_separator)));
}
// parse values
get_token();
continue;
}
// closing }
if (JSON_LIKELY(last_token == token_type::end_object))
{
if (JSON_UNLIKELY(not sax->end_object()))
{
return false;
}
// We are done with this object. Before we can parse a
// new value, we need to evaluate the new state first.
// By setting skip_to_state_evaluation to false, we
// are effectively jumping to the beginning of this if.
assert(not states.empty());
states.pop_back();
skip_to_state_evaluation = true;
continue;
}
else
{
return sax->parse_error(m_lexer.get_position(),
m_lexer.get_token_string(),
parse_error::create(101, m_lexer.get_position(), exception_message(token_type::end_object)));
}
}
}
}
}
@ -528,29 +451,7 @@ class parser
return (last_token = m_lexer.scan());
}
/*!
@throw parse_error.101 if expected token did not occur
*/
bool expect(token_type t)
{
if (JSON_UNLIKELY(t != last_token))
{
errored = true;
expected = t;
if (allow_exceptions)
{
throw_exception();
}
else
{
return false;
}
}
return true;
}
[[noreturn]] void throw_exception() const
std::string exception_message(const token_type expected)
{
std::string error_msg = "syntax error - ";
if (last_token == token_type::parse_error)
@ -568,22 +469,16 @@ class parser
error_msg += "; expected " + std::string(lexer_t::token_type_name(expected));
}
JSON_THROW(parse_error::create(101, m_lexer.get_position(), error_msg));
return error_msg;
}
private:
/// current level of recursion
int depth = 0;
/// callback function
const parser_callback_t callback = nullptr;
/// the type of the last read token
token_type last_token = token_type::uninitialized;
/// the lexer
lexer_t m_lexer;
/// whether a syntax error occurred
bool errored = false;
/// possible reason for the syntax error
token_type expected = token_type::uninitialized;
/// whether to throw exceptions in case of errors
const bool allow_exceptions = true;
};

150
include/nlohmann/json.hpp
View File

@ -172,6 +172,10 @@ class basic_json
friend class ::nlohmann::detail::binary_writer;
template<typename BasicJsonType>
friend class ::nlohmann::detail::binary_reader;
template<typename BasicJsonType>
friend class ::nlohmann::detail::json_sax_dom_parser;
template<typename BasicJsonType>
friend class ::nlohmann::detail::json_sax_dom_callback_parser;
/// workaround type for MSVC
using basic_json_t = NLOHMANN_BASIC_JSON_TPL;
@ -206,6 +210,8 @@ class basic_json
/// helper type for initializer lists of basic_json values
using initializer_list_t = std::initializer_list<detail::json_ref<basic_json>>;
using input_format_t = detail::input_format_t;
////////////////
// exceptions //
////////////////
@ -1106,6 +1112,7 @@ class basic_json
*/
using parser_callback_t = typename parser::parser_callback_t;
using json_sax_t = typename parser::json_sax_t;
//////////////////
// constructors //
@ -5992,7 +5999,7 @@ class basic_json
@since version 2.0.3 (contiguous containers)
*/
static basic_json parse(detail::input_adapter i,
static basic_json parse(detail::input_adapter&& i,
const parser_callback_t cb = nullptr,
const bool allow_exceptions = true)
{
@ -6001,26 +6008,23 @@ class basic_json
return result;
}
/*!
@copydoc basic_json parse(detail::input_adapter, const parser_callback_t)
*/
static basic_json parse(detail::input_adapter& i,
const parser_callback_t cb = nullptr,
const bool allow_exceptions = true)
{
basic_json result;
parser(i, cb, allow_exceptions).parse(true, result);
return result;
}
static bool accept(detail::input_adapter i)
static bool accept(detail::input_adapter&& i)
{
return parser(i).accept(true);
}
static bool accept(detail::input_adapter& i)
static bool sax_parse(detail::input_adapter&& i, json_sax_t* sax,
input_format_t format = input_format_t::json,
const bool strict = true)
{
return parser(i).accept(true);
assert(sax);
switch (format)
{
case input_format_t::json:
return parser(std::move(i)).sax_parse(sax, strict);
default:
return binary_reader(std::move(i)).sax_parse(format, sax, strict);
}
}
/*!
@ -6092,6 +6096,15 @@ class basic_json
return parser(detail::input_adapter(first, last)).accept(true);
}
template<class IteratorType, typename std::enable_if<
std::is_base_of<
std::random_access_iterator_tag,
typename std::iterator_traits<IteratorType>::iterator_category>::value, int>::type = 0>
static bool sax_parse(IteratorType first, IteratorType last, json_sax_t* sax)
{
return parser(detail::input_adapter(first, last)).sax_parse(sax);
}
/*!
@brief deserialize from stream
@deprecated This stream operator is deprecated and will be removed in
@ -6588,6 +6601,9 @@ class basic_json
@param[in] i an input in CBOR format convertible to an input adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@return deserialized JSON value
@throw parse_error.110 if the given input ends prematurely or the end of
@ -6603,29 +6619,39 @@ class basic_json
@sa http://cbor.io
@sa @ref to_cbor(const basic_json&) for the analogous serialization
@sa @ref from_msgpack(detail::input_adapter, const bool) for the
@sa @ref from_msgpack(detail::input_adapter, const bool, const bool) for the
related MessagePack format
@sa @ref from_ubjson(detail::input_adapter, const bool) for the related
UBJSON format
@sa @ref from_ubjson(detail::input_adapter, const bool, const bool) for the
related UBJSON format
@since version 2.0.9; parameter @a start_index since 2.1.1; changed to
consume input adapters, removed start_index parameter, and added
@a strict parameter since 3.0.0
@a strict parameter since 3.0.0; added @allow_exceptions parameter
since 3.2.0
*/
static basic_json from_cbor(detail::input_adapter i,
const bool strict = true)
static basic_json from_cbor(detail::input_adapter&& i,
const bool strict = true,
const bool allow_exceptions = true)
{
return binary_reader(i).parse_cbor(strict);
basic_json result;
detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
const bool res = binary_reader(detail::input_adapter(i)).sax_parse(input_format_t::cbor, &sdp, strict);
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_cbor(detail::input_adapter, const bool)
@copydoc from_cbor(detail::input_adapter, const bool, const bool)
*/
template<typename A1, typename A2,
detail::enable_if_t<std::is_constructible<detail::input_adapter, A1, A2>::value, int> = 0>
static basic_json from_cbor(A1 && a1, A2 && a2, const bool strict = true)
static basic_json from_cbor(A1 && a1, A2 && a2,
const bool strict = true,
const bool allow_exceptions = true)
{
return binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).parse_cbor(strict);
basic_json result;
detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
const bool res = binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).sax_parse(input_format_t::cbor, &sdp, strict);
return res ? result : basic_json(value_t::discarded);
}
/*!
@ -6678,6 +6704,10 @@ class basic_json
adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@return deserialized JSON value
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@ -6692,29 +6722,39 @@ class basic_json
@sa http://msgpack.org
@sa @ref to_msgpack(const basic_json&) for the analogous serialization
@sa @ref from_cbor(detail::input_adapter, const bool) for the related CBOR
format
@sa @ref from_ubjson(detail::input_adapter, const bool) for the related
UBJSON format
@sa @ref from_cbor(detail::input_adapter, const bool, const bool) for the
related CBOR format
@sa @ref from_ubjson(detail::input_adapter, const bool, const bool) for
the related UBJSON format
@since version 2.0.9; parameter @a start_index since 2.1.1; changed to
consume input adapters, removed start_index parameter, and added
@a strict parameter since 3.0.0
@a strict parameter since 3.0.0; added @allow_exceptions parameter
since 3.2.0
*/
static basic_json from_msgpack(detail::input_adapter i,
const bool strict = true)
static basic_json from_msgpack(detail::input_adapter&& i,
const bool strict = true,
const bool allow_exceptions = true)
{
return binary_reader(i).parse_msgpack(strict);
basic_json result;
detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
const bool res = binary_reader(detail::input_adapter(i)).sax_parse(input_format_t::msgpack, &sdp, strict);
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_msgpack(detail::input_adapter, const bool)
@copydoc from_msgpack(detail::input_adapter, const bool, const bool)
*/
template<typename A1, typename A2,
detail::enable_if_t<std::is_constructible<detail::input_adapter, A1, A2>::value, int> = 0>
static basic_json from_msgpack(A1 && a1, A2 && a2, const bool strict = true)
static basic_json from_msgpack(A1 && a1, A2 && a2,
const bool strict = true,
const bool allow_exceptions = true)
{
return binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).parse_msgpack(strict);
basic_json result;
detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
const bool res = binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).sax_parse(input_format_t::msgpack, &sdp, strict);
return res ? result : basic_json(value_t::discarded);
}
/*!
@ -6749,6 +6789,10 @@ class basic_json
@param[in] i an input in UBJSON format convertible to an input adapter
@param[in] strict whether to expect the input to be consumed until EOF
(true by default)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@return deserialized JSON value
@throw parse_error.110 if the given input ends prematurely or the end of
file was not reached when @a strict was set to true
@ -6763,24 +6807,36 @@ class basic_json
@sa http://ubjson.org
@sa @ref to_ubjson(const basic_json&, const bool, const bool) for the
analogous serialization
@sa @ref from_cbor(detail::input_adapter, const bool) for the related CBOR
format
@sa @ref from_msgpack(detail::input_adapter, const bool) for the related
MessagePack format
@sa @ref from_cbor(detail::input_adapter, const bool, const bool) for the
related CBOR format
@sa @ref from_msgpack(detail::input_adapter, const bool, const bool) for
the related MessagePack format
@since version 3.1.0
@since version 3.1.0; added @allow_exceptions parameter since 3.2.0
*/
static basic_json from_ubjson(detail::input_adapter i,
const bool strict = true)
static basic_json from_ubjson(detail::input_adapter&& i,
const bool strict = true,
const bool allow_exceptions = true)
{
return binary_reader(i).parse_ubjson(strict);
basic_json result;
detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
const bool res = binary_reader(detail::input_adapter(i)).sax_parse(input_format_t::ubjson, &sdp, strict);
return res ? result : basic_json(value_t::discarded);
}
/*!
@copydoc from_ubjson(detail::input_adapter, const bool, const bool)
*/
template<typename A1, typename A2,
detail::enable_if_t<std::is_constructible<detail::input_adapter, A1, A2>::value, int> = 0>
static basic_json from_ubjson(A1 && a1, A2 && a2, const bool strict = true)
static basic_json from_ubjson(A1 && a1, A2 && a2,
const bool strict = true,
const bool allow_exceptions = true)
{
return binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).parse_ubjson(strict);
basic_json result;
detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
const bool res = binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).sax_parse(input_format_t::ubjson, &sdp, strict);
return res ? result : basic_json(value_t::discarded);
}
/// @}

2731
single_include/nlohmann/json.hpp
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193
test/src/unit-cbor.cpp
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@ -34,6 +34,76 @@ using nlohmann::json;
#include <fstream>
class SaxCountdown : public nlohmann::json::json_sax_t
{
public:
explicit SaxCountdown(const int count) : events_left(count)
{}
bool null() override
{
return events_left-- > 0;
}
bool boolean(bool) override
{
return events_left-- > 0;
}
bool number_integer(json::number_integer_t) override
{
return events_left-- > 0;
}
bool number_unsigned(json::number_unsigned_t) override
{
return events_left-- > 0;
}
bool number_float(json::number_float_t, const std::string&) override
{
return events_left-- > 0;
}
bool string(std::string&) override
{
return events_left-- > 0;
}
bool start_object(std::size_t) override
{
return events_left-- > 0;
}
bool key(std::string&) override
{
return events_left-- > 0;
}
bool end_object() override
{
return events_left-- > 0;
}
bool start_array(std::size_t) override
{
return events_left-- > 0;
}
bool end_array() override
{
return events_left-- > 0;
}
bool parse_error(std::size_t, const std::string&, const json::exception&) override
{
return false;
}
private:
int events_left = 0;
};
TEST_CASE("CBOR")
{
SECTION("individual values")
@ -55,6 +125,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("boolean")
@ -68,6 +139,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("false")
@ -79,6 +151,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -143,6 +216,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -191,6 +265,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -226,6 +301,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -242,6 +318,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("-256..-24")
@ -272,6 +349,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -301,6 +379,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -331,6 +410,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -363,6 +443,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -397,6 +478,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -439,6 +521,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -489,6 +572,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -554,6 +638,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -586,6 +671,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -619,6 +705,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -660,6 +747,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -709,6 +797,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
}
@ -729,6 +818,8 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result) == v);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -741,12 +832,14 @@ TEST_CASE("CBOR")
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xf9})), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xf9})),
"[json.exception.parse_error.110] parse error at 2: unexpected end of input");
CHECK(json::from_cbor(std::vector<uint8_t>({0xf9}), true, false).is_discarded());
}
SECTION("only one byte follows")
{
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xf9, 0x7c})), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xf9, 0x7c})),
"[json.exception.parse_error.110] parse error at 3: unexpected end of input");
CHECK(json::from_cbor(std::vector<uint8_t>({0xf9, 0x7c}), true, false).is_discarded());
}
}
@ -867,6 +960,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -898,6 +992,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -930,6 +1025,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -964,6 +1060,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
}
@ -979,6 +1076,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("[null]")
@ -990,6 +1088,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("[1,2,3,4,5]")
@ -1001,6 +1100,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("[[[[]]]]")
@ -1012,6 +1112,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("array with uint16_t elements")
@ -1026,6 +1127,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("array with uint32_t elements")
@ -1042,6 +1144,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
@ -1056,6 +1159,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("{\"\":null}")
@ -1067,6 +1171,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("{\"a\": {\"b\": {\"c\": {}}}}")
@ -1081,6 +1186,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("object with uint8_t elements")
@ -1107,6 +1213,7 @@ TEST_CASE("CBOR")
CHECK(result[1] == 0xff); // size byte (0xff)
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("object with uint16_t elements")
@ -1135,6 +1242,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
SECTION("object with uint32_t elements")
@ -1165,6 +1273,7 @@ TEST_CASE("CBOR")
// roundtrip
CHECK(json::from_cbor(result) == j);
CHECK(json::from_cbor(result, true, false) == j);
}
}
}
@ -1206,6 +1315,7 @@ TEST_CASE("CBOR")
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>()), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>()),
"[json.exception.parse_error.110] parse error at 1: unexpected end of input");
CHECK(json::from_cbor(std::vector<uint8_t>(), true, false).is_discarded());
}
SECTION("too short byte vector")
@ -1225,6 +1335,15 @@ TEST_CASE("CBOR")
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00, 0x00})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x62})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x62, 0x60})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x7F})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x7F, 0x60})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x82, 0x01})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x9F, 0x01})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xBF, 0x61, 0x61, 0xF5})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xA1, 0x61, 0X61})), json::parse_error&);
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xBF, 0x61, 0X61})), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x18})),
"[json.exception.parse_error.110] parse error at 2: unexpected end of input");
@ -1256,6 +1375,49 @@ TEST_CASE("CBOR")
"[json.exception.parse_error.110] parse error at 8: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})),
"[json.exception.parse_error.110] parse error at 9: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x62})),
"[json.exception.parse_error.110] parse error at 2: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x62, 0x60})),
"[json.exception.parse_error.110] parse error at 3: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x7F})),
"[json.exception.parse_error.110] parse error at 2: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x7F, 0x60})),
"[json.exception.parse_error.110] parse error at 3: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x82, 0x01})),
"[json.exception.parse_error.110] parse error at 3: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x9F, 0x01})),
"[json.exception.parse_error.110] parse error at 3: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xBF, 0x61, 0x61, 0xF5})),
"[json.exception.parse_error.110] parse error at 5: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xA1, 0x61, 0x61})),
"[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xBF, 0x61, 0x61})),
"[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_cbor(std::vector<uint8_t>({0x18}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x19}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x19, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1a}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1a, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1a, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1a, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x1b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x62}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x62, 0x60}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x7F}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x7F, 0x60}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x82, 0x01}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0x9F, 0x01}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0xBF, 0x61, 0x61, 0xF5}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0xA1, 0x61, 0x61}), true, false).is_discarded());
CHECK(json::from_cbor(std::vector<uint8_t>({0xBF, 0x61, 0x61}), true, false).is_discarded());
}
SECTION("unsupported bytes")
@ -1265,9 +1427,12 @@ TEST_CASE("CBOR")
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0x1c})), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0x1c})),
"[json.exception.parse_error.112] parse error at 1: error reading CBOR; last byte: 0x1C");
CHECK(json::from_cbor(std::vector<uint8_t>({0x1c}), true, false).is_discarded());
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xf8})), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xf8})),
"[json.exception.parse_error.112] parse error at 1: error reading CBOR; last byte: 0xF8");
CHECK(json::from_cbor(std::vector<uint8_t>({0xf8}), true, false).is_discarded());
}
SECTION("all unsupported bytes")
@ -1317,6 +1482,7 @@ TEST_CASE("CBOR")
})
{
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({static_cast<uint8_t>(byte)})), json::parse_error&);
CHECK(json::from_cbor(std::vector<uint8_t>({static_cast<uint8_t>(byte)}), true, false).is_discarded());
}
}
}
@ -1326,6 +1492,7 @@ TEST_CASE("CBOR")
CHECK_THROWS_AS(json::from_cbor(std::vector<uint8_t>({0xa1, 0xff, 0x01})), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(std::vector<uint8_t>({0xa1, 0xff, 0x01})),
"[json.exception.parse_error.113] parse error at 2: expected a CBOR string; last byte: 0xFF");
CHECK(json::from_cbor(std::vector<uint8_t>({0xa1, 0xff, 0x01}), true, false).is_discarded());
}
SECTION("strict mode")
@ -1335,6 +1502,7 @@ TEST_CASE("CBOR")
{
const auto result = json::from_cbor(vec, false);
CHECK(result == json());
CHECK(not json::from_cbor(vec, false, false).is_discarded());
}
SECTION("strict mode")
@ -1342,9 +1510,34 @@ TEST_CASE("CBOR")
CHECK_THROWS_AS(json::from_cbor(vec), json::parse_error&);
CHECK_THROWS_WITH(json::from_cbor(vec),
"[json.exception.parse_error.110] parse error at 2: expected end of input");
CHECK(json::from_cbor(vec, true, false).is_discarded());
}
}
}
SECTION("SAX aborts")
{
SECTION("start_array(len)")
{
std::vector<uint8_t> v = {0x83, 0x01, 0x02, 0x03};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::cbor));
}
SECTION("start_object(len)")
{
std::vector<uint8_t> v = {0xA1, 0x63, 0x66, 0x6F, 0x6F, 0xF4};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::cbor));
}
SECTION("key()")
{
std::vector<uint8_t> v = {0xA1, 0x63, 0x66, 0x6F, 0x6F, 0xF4};
SaxCountdown scp(1);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::cbor));
}
}
}
// use this testcase outside [hide] to run it with Valgrind

285
test/src/unit-class_parser.cpp
View File

@ -35,6 +35,170 @@ using nlohmann::json;
#include <valarray>
class SaxEventLogger : public nlohmann::json::json_sax_t
{
public:
bool null() override
{
events.push_back("null()");
return true;
}
bool boolean(bool val) override
{
events.push_back(val ? "boolean(true)" : "boolean(false)");
return true;
}
bool number_integer(json::number_integer_t val) override
{
events.push_back("number_integer(" + std::to_string(val) + ")");
return true;
}
bool number_unsigned(json::number_unsigned_t val) override
{
events.push_back("number_unsigned(" + std::to_string(val) + ")");
return true;
}
bool number_float(json::number_float_t, const std::string& s) override
{
events.push_back("number_float(" + s + ")");
return true;
}
bool string(std::string& val) override
{
events.push_back("string(" + val + ")");
return true;
}
bool start_object(std::size_t elements) override
{
if (elements == no_limit)
{
events.push_back("start_object()");
}
else
{
events.push_back("start_object(" + std::to_string(elements) + ")");
}
return true;
}
bool key(std::string& val) override
{
events.push_back("key(" + val + ")");
return true;
}
bool end_object() override
{
events.push_back("end_object()");
return true;
}
bool start_array(std::size_t elements) override
{
if (elements == no_limit)
{
events.push_back("start_array()");
}
else
{
events.push_back("start_array(" + std::to_string(elements) + ")");
}
return true;
}
bool end_array() override
{
events.push_back("end_array()");
return true;
}
bool parse_error(std::size_t position, const std::string&, const json::exception&) override
{
errored = true;
events.push_back("parse_error(" + std::to_string(position) + ")");
return false;
}
std::vector<std::string> events;
bool errored = false;
};
class SaxCountdown : public nlohmann::json::json_sax_t
{
public:
explicit SaxCountdown(const int count) : events_left(count)
{}
bool null() override
{
return events_left-- > 0;
}
bool boolean(bool) override
{
return events_left-- > 0;
}
bool number_integer(json::number_integer_t) override
{
return events_left-- > 0;
}
bool number_unsigned(json::number_unsigned_t) override
{
return events_left-- > 0;
}
bool number_float(json::number_float_t, const std::string&) override
{
return events_left-- > 0;
}
bool string(std::string&) override
{
return events_left-- > 0;
}
bool start_object(std::size_t) override
{
return events_left-- > 0;
}
bool key(std::string&) override
{
return events_left-- > 0;
}
bool end_object() override
{
return events_left-- > 0;
}
bool start_array(std::size_t) override
{
return events_left-- > 0;
}
bool end_array() override
{
return events_left-- > 0;
}
bool parse_error(std::size_t, const std::string&, const json::exception&) override
{
return false;
}
private:
int events_left = 0;
};
json parser_helper(const std::string& s);
bool accept_helper(const std::string& s);
@ -49,11 +213,18 @@ json parser_helper(const std::string& s)
CHECK_NOTHROW(json::parser(nlohmann::detail::input_adapter(s), nullptr, false).parse(true, j_nothrow));
CHECK(j_nothrow == j);
json j_sax;
nlohmann::detail::json_sax_dom_parser<json> sdp(j_sax);
json::sax_parse(s, &sdp);
CHECK(j_sax == j);
return j;
}
bool accept_helper(const std::string& s)
{
CAPTURE(s);
// 1. parse s without exceptions
json j;
CHECK_NOTHROW(json::parser(nlohmann::detail::input_adapter(s), nullptr, false).parse(true, j));
@ -65,7 +236,23 @@ bool accept_helper(const std::string& s)
// 3. check if both approaches come to the same result
CHECK(ok_noexcept == ok_accept);
// 4. return result
// 4. parse with SAX (compare with relaxed accept result)
SaxEventLogger el;
CHECK_NOTHROW(json::sax_parse(s, &el, json::input_format_t::json, false));
CHECK(json::parser(nlohmann::detail::input_adapter(s)).accept(false) == not el.errored);
// 5. parse with simple callback
json::parser_callback_t cb = [](int, json::parse_event_t, json&)
{
return true;
};
json j_cb = json::parse(s, cb, false);
const bool ok_noexcept_cb = not j_cb.is_discarded();
// 6. check if this approach came to the same result
CHECK(ok_noexcept == ok_noexcept_cb);
// 7. return result
return ok_accept;
}
@ -1473,4 +1660,100 @@ TEST_CASE("parser class")
CHECK(j == json(true));
}
}
SECTION("improve test coverage")
{
SECTION("parser with callback")
{
json::parser_callback_t cb = [](int, json::parse_event_t, json&)
{
return true;
};
CHECK(json::parse("{\"foo\": true:", cb, false).is_discarded());
CHECK_THROWS_AS(json::parse("{\"foo\": true:", cb), json::parse_error&);
CHECK_THROWS_WITH(json::parse("{\"foo\": true:", cb),
"[json.exception.parse_error.101] parse error at 13: syntax error - unexpected ':'; expected '}'");
CHECK_THROWS_AS(json::parse("1.18973e+4932", cb), json::out_of_range&);
CHECK_THROWS_WITH(json::parse("1.18973e+4932", cb),
"[json.exception.out_of_range.406] number overflow parsing '1.18973e+4932'");
}
SECTION("SAX parser")
{
SECTION("} without value")
{
SaxCountdown s(1);
CHECK(json::sax_parse("{}", &s) == false);
}
SECTION("} with value")
{
SaxCountdown s(3);
CHECK(json::sax_parse("{\"k1\": true}", &s) == false);
}
SECTION("second key")
{
SaxCountdown s(3);
CHECK(json::sax_parse("{\"k1\": true, \"k2\": false}", &s) == false);
}
SECTION("] without value")
{
SaxCountdown s(1);
CHECK(json::sax_parse("[]", &s) == false);
}
SECTION("] with value")
{
SaxCountdown s(2);
CHECK(json::sax_parse("[1]", &s) == false);
}
SECTION("float")
{
SaxCountdown s(0);
CHECK(json::sax_parse("3.14", &s) == false);
}
SECTION("false")
{
SaxCountdown s(0);
CHECK(json::sax_parse("false", &s) == false);
}
SECTION("null")
{
SaxCountdown s(0);
CHECK(json::sax_parse("null", &s) == false);
}
SECTION("true")
{
SaxCountdown s(0);
CHECK(json::sax_parse("true", &s) == false);
}
SECTION("unsigned")
{
SaxCountdown s(0);
CHECK(json::sax_parse("12", &s) == false);
}
SECTION("integer")
{
SaxCountdown s(0);
CHECK(json::sax_parse("-12", &s) == false);
}
SECTION("string")
{
SaxCountdown s(0);
CHECK(json::sax_parse("\"foo\"", &s) == false);
}
}
}
}

500
test/src/unit-deserialization.cpp
View File

@ -35,18 +35,162 @@ using nlohmann::json;
#include <iostream>
#include <valarray>
struct SaxEventLogger : public nlohmann::json::json_sax_t
{
bool null() override
{
events.push_back("null()");
return true;
}
bool boolean(bool val) override
{
events.push_back(val ? "boolean(true)" : "boolean(false)");
return true;
}
bool number_integer(json::number_integer_t val) override
{
events.push_back("number_integer(" + std::to_string(val) + ")");
return true;
}
bool number_unsigned(json::number_unsigned_t val) override
{
events.push_back("number_unsigned(" + std::to_string(val) + ")");
return true;
}
bool number_float(json::number_float_t, const std::string& s) override
{
events.push_back("number_float(" + s + ")");
return true;
}
bool string(std::string& val) override
{
events.push_back("string(" + val + ")");
return true;
}
bool start_object(std::size_t elements) override
{
if (elements == std::size_t(-1))
{
events.push_back("start_object()");
}
else
{
events.push_back("start_object(" + std::to_string(elements) + ")");
}
return true;
}
bool key(std::string& val) override
{
events.push_back("key(" + val + ")");
return true;
}
bool end_object()override
{
events.push_back("end_object()");
return true;
}
bool start_array(std::size_t elements) override
{
if (elements == std::size_t(-1))
{
events.push_back("start_array()");
}
else
{
events.push_back("start_array(" + std::to_string(elements) + ")");
}
return true;
}
bool end_array() override
{
events.push_back("end_array()");
return true;
}
bool parse_error(std::size_t position, const std::string&, const json::exception&) override
{
events.push_back("parse_error(" + std::to_string(position) + ")");
return false;
}
std::vector<std::string> events;
};
struct SaxEventLoggerExitAfterStartObject : public SaxEventLogger
{
bool start_object(std::size_t elements) override
{
if (elements == no_limit)
{
events.push_back("start_object()");
}
else
{
events.push_back("start_object(" + std::to_string(elements) + ")");
}
return false;
}
};
struct SaxEventLoggerExitAfterKey : public SaxEventLogger
{
bool key(std::string& val) override
{
events.push_back("key(" + val + ")");
return false;
}
};
struct SaxEventLoggerExitAfterStartArray : public SaxEventLogger
{
bool start_array(std::size_t elements) override
{
if (elements == no_limit)
{
events.push_back("start_array()");
}
else
{
events.push_back("start_array(" + std::to_string(elements) + ")");
}
return false;
}
};
TEST_CASE("deserialization")
{
SECTION("successful deserialization")
{
SECTION("stream")
{
std::stringstream ss1, ss2;
std::stringstream ss1, ss2, ss3;
ss1 << "[\"foo\",1,2,3,false,{\"one\":1}]";
ss2 << "[\"foo\",1,2,3,false,{\"one\":1}]";
ss3 << "[\"foo\",1,2,3,false,{\"one\":1}]";
json j = json::parse(ss1);
CHECK(json::accept(ss2));
CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
SaxEventLogger l;
CHECK(json::sax_parse(ss3, &l));
CHECK(l.events.size() == 11);
CHECK(l.events == std::vector<std::string>(
{
"start_array()", "string(foo)", "number_unsigned(1)",
"number_unsigned(2)", "number_unsigned(3)", "boolean(false)",
"start_object()", "key(one)", "number_unsigned(1)",
"end_object()", "end_array()"
}));
}
SECTION("string literal")
@ -55,6 +199,17 @@ TEST_CASE("deserialization")
json j = json::parse(s);
CHECK(json::accept(s));
CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
SaxEventLogger l;
CHECK(json::sax_parse(s, &l));
CHECK(l.events.size() == 11);
CHECK(l.events == std::vector<std::string>(
{
"start_array()", "string(foo)", "number_unsigned(1)",
"number_unsigned(2)", "number_unsigned(3)", "boolean(false)",
"start_object()", "key(one)", "number_unsigned(1)",
"end_object()", "end_array()"
}));
}
SECTION("string_t")
@ -63,6 +218,17 @@ TEST_CASE("deserialization")
json j = json::parse(s);
CHECK(json::accept(s));
CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
SaxEventLogger l;
CHECK(json::sax_parse(s, &l));
CHECK(l.events.size() == 11);
CHECK(l.events == std::vector<std::string>(
{
"start_array()", "string(foo)", "number_unsigned(1)",
"number_unsigned(2)", "number_unsigned(3)", "boolean(false)",
"start_object()", "key(one)", "number_unsigned(1)",
"end_object()", "end_array()"
}));
}
SECTION("operator<<")
@ -93,19 +259,31 @@ TEST_CASE("deserialization")
{
SECTION("stream")
{
std::stringstream ss1, ss2, ss3, ss4;
std::stringstream ss1, ss2, ss3, ss4, ss5;
ss1 << "[\"foo\",1,2,3,false,{\"one\":1}";
ss2 << "[\"foo\",1,2,3,false,{\"one\":1}";
ss3 << "[\"foo\",1,2,3,false,{\"one\":1}";
ss4 << "[\"foo\",1,2,3,false,{\"one\":1}";
ss5 << "[\"foo\",1,2,3,false,{\"one\":1}";
CHECK_THROWS_AS(json::parse(ss1), json::parse_error&);
CHECK_THROWS_WITH(json::parse(ss2),
"[json.exception.parse_error.101] parse error at 29: syntax error - unexpected end of input; expected ']'");
CHECK(not json::accept(ss3));
json j_error;
CHECK_NOTHROW(j_error = json::parse(ss1, nullptr, false));
CHECK_NOTHROW(j_error = json::parse(ss4, nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(ss5, &l));
CHECK(l.events.size() == 11);
CHECK(l.events == std::vector<std::string>(
{
"start_array()", "string(foo)", "number_unsigned(1)",
"number_unsigned(2)", "number_unsigned(3)", "boolean(false)",
"start_object()", "key(one)", "number_unsigned(1)",
"end_object()", "parse_error(29)"
}));
}
SECTION("string")
@ -119,6 +297,17 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(s, nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(s, &l));
CHECK(l.events.size() == 11);
CHECK(l.events == std::vector<std::string>(
{
"start_array()", "string(foo)", "number_unsigned(1)",
"number_unsigned(2)", "number_unsigned(3)", "boolean(false)",
"start_object()", "key(one)", "number_unsigned(1)",
"end_object()", "parse_error(29)"
}));
}
SECTION("operator<<")
@ -160,6 +349,11 @@ TEST_CASE("deserialization")
std::vector<uint8_t> v = {'t', 'r', 'u', 'e'};
CHECK(json::parse(v) == json(true));
CHECK(json::accept(v));
SaxEventLogger l;
CHECK(json::sax_parse(v, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from std::array")
@ -167,6 +361,11 @@ TEST_CASE("deserialization")
std::array<uint8_t, 5> v { {'t', 'r', 'u', 'e'} };
CHECK(json::parse(v) == json(true));
CHECK(json::accept(v));
SaxEventLogger l;
CHECK(json::sax_parse(v, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from array")
@ -174,6 +373,11 @@ TEST_CASE("deserialization")
uint8_t v[] = {'t', 'r', 'u', 'e'};
CHECK(json::parse(v) == json(true));
CHECK(json::accept(v));
SaxEventLogger l;
CHECK(json::sax_parse(v, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from chars")
@ -186,6 +390,12 @@ TEST_CASE("deserialization")
v[4] = '\0';
CHECK(json::parse(v) == json(true));
CHECK(json::accept(v));
SaxEventLogger l;
CHECK(json::sax_parse(v, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
delete[] v;
}
@ -194,6 +404,11 @@ TEST_CASE("deserialization")
std::string v = {'t', 'r', 'u', 'e'};
CHECK(json::parse(v) == json(true));
CHECK(json::accept(v));
SaxEventLogger l;
CHECK(json::sax_parse(v, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from std::initializer_list")
@ -201,6 +416,11 @@ TEST_CASE("deserialization")
std::initializer_list<uint8_t> v = {'t', 'r', 'u', 'e'};
CHECK(json::parse(v) == json(true));
CHECK(json::accept(v));
SaxEventLogger l;
CHECK(json::sax_parse(v, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("empty container")
@ -208,6 +428,11 @@ TEST_CASE("deserialization")
std::vector<uint8_t> v;
CHECK_THROWS_AS(json::parse(v), json::parse_error&);
CHECK(not json::accept(v));
SaxEventLogger l;
CHECK(not json::sax_parse(v, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(1)"}));
}
}
@ -218,6 +443,12 @@ TEST_CASE("deserialization")
std::vector<uint8_t> v = {'t', 'r', 'u', 'e'};
CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
CHECK(json::accept(std::begin(v), std::end(v)));
SaxEventLogger l;
CHECK(json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from std::array")
@ -225,6 +456,11 @@ TEST_CASE("deserialization")
std::array<uint8_t, 5> v { {'t', 'r', 'u', 'e'} };
CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
CHECK(json::accept(std::begin(v), std::end(v)));
SaxEventLogger l;
CHECK(json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from array")
@ -232,6 +468,11 @@ TEST_CASE("deserialization")
uint8_t v[] = {'t', 'r', 'u', 'e'};
CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
CHECK(json::accept(std::begin(v), std::end(v)));
SaxEventLogger l;
CHECK(json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from std::string")
@ -239,6 +480,11 @@ TEST_CASE("deserialization")
std::string v = {'t', 'r', 'u', 'e'};
CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
CHECK(json::accept(std::begin(v), std::end(v)));
SaxEventLogger l;
CHECK(json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from std::initializer_list")
@ -246,6 +492,11 @@ TEST_CASE("deserialization")
std::initializer_list<uint8_t> v = {'t', 'r', 'u', 'e'};
CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
CHECK(json::accept(std::begin(v), std::end(v)));
SaxEventLogger l;
CHECK(json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("from std::valarray")
@ -253,6 +504,11 @@ TEST_CASE("deserialization")
std::valarray<uint8_t> v = {'t', 'r', 'u', 'e'};
CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
CHECK(json::accept(std::begin(v), std::end(v)));
SaxEventLogger l;
CHECK(json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"boolean(true)"}));
}
SECTION("with empty range")
@ -260,6 +516,11 @@ TEST_CASE("deserialization")
std::vector<uint8_t> v;
CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
CHECK(not json::accept(std::begin(v), std::end(v)));
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(1)"}));
}
}
@ -275,6 +536,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(10)"}));
}
SECTION("case 2")
@ -286,6 +552,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(11)"}));
}
SECTION("case 3")
@ -297,6 +568,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(18)"}));
}
SECTION("case 4")
@ -308,6 +584,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(18)"}));
}
SECTION("case 5")
@ -319,6 +600,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(3)"}));
}
SECTION("case 6")
@ -332,6 +618,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 7")
@ -343,6 +634,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 8")
@ -354,6 +650,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 9")
@ -365,6 +666,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 10")
@ -376,6 +682,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 11")
@ -387,6 +698,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 12")
@ -398,6 +714,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 13")
@ -409,6 +730,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 14")
@ -420,6 +746,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 15")
@ -431,6 +762,11 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>({"parse_error(4)"}));
}
SECTION("case 16")
@ -442,6 +778,15 @@ TEST_CASE("deserialization")
json j_error;
CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
CHECK(j_error.is_discarded());
SaxEventLogger l;
CHECK(not json::sax_parse(std::begin(v), std::end(v), &l));
CHECK(l.events.size() == 4);
CHECK(l.events == std::vector<std::string>(
{
"start_object()", "key()", "number_unsigned(11)",
"parse_error(7)"
}));
}
}
}
@ -454,39 +799,89 @@ TEST_CASE("deserialization")
{
CHECK_THROWS_AS(json::parse(bom), json::parse_error&);
CHECK_THROWS_WITH(json::parse(bom),
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
"[json.exception.parse_error.101] parse error at 4: syntax error - unexpected end of input; expected '[', '{', or a literal");
CHECK_THROWS_AS(json::parse(std::istringstream(bom)), json::parse_error&);
CHECK_THROWS_WITH(json::parse(std::istringstream(bom)),
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
"[json.exception.parse_error.101] parse error at 4: syntax error - unexpected end of input; expected '[', '{', or a literal");
SaxEventLogger l;
CHECK(not json::sax_parse(bom, &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>(
{
"parse_error(4)"
}));
}
SECTION("BOM and content")
{
CHECK(json::parse(bom + "1") == 1);
CHECK(json::parse(std::istringstream(bom + "1")) == 1);
SaxEventLogger l1, l2;
CHECK(json::sax_parse(std::istringstream(bom + "1"), &l1));
CHECK(json::sax_parse(bom + "1", &l2));
CHECK(l1.events.size() == 1);
CHECK(l1.events == std::vector<std::string>(
{
"number_unsigned(1)"
}));
CHECK(l2.events.size() == 1);
CHECK(l2.events == std::vector<std::string>(
{
"number_unsigned(1)"
}));
}
SECTION("2 byte of BOM")
{
CHECK_THROWS_AS(json::parse(bom.substr(0, 2)), json::parse_error&);
CHECK_THROWS_WITH(json::parse(bom),
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
CHECK_THROWS_WITH(json::parse(bom.substr(0, 2)),
"[json.exception.parse_error.101] parse error at 3: syntax error - invalid BOM; must be 0xEF 0xBB 0xBF if given; last read: '\xEF\xBB'");
CHECK_THROWS_AS(json::parse(std::istringstream(bom.substr(0, 2))), json::parse_error&);
CHECK_THROWS_WITH(json::parse(std::istringstream(bom)),
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
CHECK_THROWS_WITH(json::parse(std::istringstream(bom.substr(0, 2))),
"[json.exception.parse_error.101] parse error at 3: syntax error - invalid BOM; must be 0xEF 0xBB 0xBF if given; last read: '\xEF\xBB'");
SaxEventLogger l1, l2;
CHECK(not json::sax_parse(std::istringstream(bom.substr(0, 2)), &l1));
CHECK(not json::sax_parse(bom.substr(0, 2), &l2));
CHECK(l1.events.size() == 1);
CHECK(l1.events == std::vector<std::string>(
{
"parse_error(3)"
}));
CHECK(l2.events.size() == 1);
CHECK(l2.events == std::vector<std::string>(
{
"parse_error(3)"
}));
}
SECTION("1 byte of BOM")
{
CHECK_THROWS_AS(json::parse(bom.substr(0, 1)), json::parse_error&);
CHECK_THROWS_WITH(json::parse(bom),
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
CHECK_THROWS_WITH(json::parse(bom.substr(0, 1)),
"[json.exception.parse_error.101] parse error at 2: syntax error - invalid BOM; must be 0xEF 0xBB 0xBF if given; last read: '\xEF'");
CHECK_THROWS_AS(json::parse(std::istringstream(bom.substr(0, 1))), json::parse_error&);
CHECK_THROWS_WITH(json::parse(std::istringstream(bom)),
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
CHECK_THROWS_WITH(json::parse(std::istringstream(bom.substr(0, 1))),
"[json.exception.parse_error.101] parse error at 2: syntax error - invalid BOM; must be 0xEF 0xBB 0xBF if given; last read: '\xEF'");
SaxEventLogger l1, l2;
CHECK(not json::sax_parse(std::istringstream(bom.substr(0, 1)), &l1));
CHECK(not json::sax_parse(bom.substr(0, 1), &l2));
CHECK(l1.events.size() == 1);
CHECK(l1.events == std::vector<std::string>(
{
"parse_error(2)"
}));
CHECK(l2.events.size() == 1);
CHECK(l2.events == std::vector<std::string>(
{
"parse_error(2)"
}));
}
SECTION("variations")
@ -514,12 +909,46 @@ TEST_CASE("deserialization")
// without any variation, we skip the BOM
CHECK(json::parse(s + "null") == json());
CHECK(json::parse(std::istringstream(s + "null")) == json());
SaxEventLogger l;
CHECK(json::sax_parse(s + "null", &l));
CHECK(l.events.size() == 1);
CHECK(l.events == std::vector<std::string>(
{
"null()"
}));
}
else
{
// any variation is an error
CHECK_THROWS_AS(json::parse(s + "null"), json::parse_error&);
CHECK_THROWS_AS(json::parse(std::istringstream(s + "null")), json::parse_error&);
SaxEventLogger l;
CHECK(not json::sax_parse(s + "null", &l));
CHECK(l.events.size() == 1);
if (i0 != 0)
{
CHECK(l.events == std::vector<std::string>(
{
"parse_error(1)"
}));
}
else if (i1 != 0)
{
CHECK(l.events == std::vector<std::string>(
{
"parse_error(2)"
}));
}
else
{
CHECK(l.events == std::vector<std::string>(
{
"parse_error(3)"
}));
}
}
}
}
@ -536,4 +965,49 @@ TEST_CASE("deserialization")
CHECK(j == 456);
}
}
SECTION("SAX and early abort")
{
std::string s = "[1, [\"string\", 43.12], null, {\"key1\": true, \"key2\": false}]";
SaxEventLogger default_logger;
SaxEventLoggerExitAfterStartObject exit_after_start_object;
SaxEventLoggerExitAfterKey exit_after_key;
SaxEventLoggerExitAfterStartArray exit_after_start_array;
json::sax_parse(s, &default_logger);
CHECK(default_logger.events.size() == 14);
CHECK(default_logger.events == std::vector<std::string>(
{
"start_array()", "number_unsigned(1)", "start_array()",
"string(string)", "number_float(43.12)", "end_array()", "null()",
"start_object()", "key(key1)", "boolean(true)", "key(key2)",
"boolean(false)", "end_object()", "end_array()"
}));
json::sax_parse(s, &exit_after_start_object);
CHECK(exit_after_start_object.events.size() == 8);
CHECK(exit_after_start_object.events == std::vector<std::string>(
{
"start_array()", "number_unsigned(1)", "start_array()",
"string(string)", "number_float(43.12)", "end_array()", "null()",
"start_object()"
}));
json::sax_parse(s, &exit_after_key);
CHECK(exit_after_key.events.size() == 9);
CHECK(exit_after_key.events == std::vector<std::string>(
{
"start_array()", "number_unsigned(1)", "start_array()",
"string(string)", "number_float(43.12)", "end_array()", "null()",
"start_object()", "key(key1)"
}));
json::sax_parse(s, &exit_after_start_array);
CHECK(exit_after_start_array.events.size() == 1);
CHECK(exit_after_start_array.events == std::vector<std::string>(
{
"start_array()"
}));
}
}

168
test/src/unit-msgpack.cpp
View File

@ -34,6 +34,76 @@ using nlohmann::json;
#include <fstream>
class SaxCountdown : public nlohmann::json::json_sax_t
{
public:
explicit SaxCountdown(const int count) : events_left(count)
{}
bool null() override
{
return events_left-- > 0;
}
bool boolean(bool) override
{
return events_left-- > 0;
}
bool number_integer(json::number_integer_t) override
{
return events_left-- > 0;
}
bool number_unsigned(json::number_unsigned_t) override
{
return events_left-- > 0;
}
bool number_float(json::number_float_t, const std::string&) override
{
return events_left-- > 0;
}
bool string(std::string&) override
{
return events_left-- > 0;
}
bool start_object(std::size_t) override
{
return events_left-- > 0;
}
bool key(std::string&) override
{
return events_left-- > 0;
}
bool end_object() override
{
return events_left-- > 0;
}
bool start_array(std::size_t) override
{
return events_left-- > 0;
}
bool end_array() override
{
return events_left-- > 0;
}
bool parse_error(std::size_t, const std::string&, const json::exception&) override
{
return false;
}
private:
int events_left = 0;
};
TEST_CASE("MessagePack")
{
SECTION("individual values")
@ -55,6 +125,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("boolean")
@ -68,6 +139,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("false")
@ -79,6 +151,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -112,6 +185,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -142,6 +216,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -175,6 +250,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -209,6 +285,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -251,6 +328,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -301,6 +379,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -332,6 +411,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -348,6 +428,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("-32768..-129 (int 16)")
@ -380,6 +461,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -424,6 +506,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -473,6 +556,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
@ -505,6 +589,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -537,6 +622,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -570,6 +656,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -611,6 +698,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -660,6 +748,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
@ -680,6 +769,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result) == v);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
@ -728,6 +818,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -759,6 +850,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -791,6 +883,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -825,6 +918,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
@ -840,6 +934,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("[null]")
@ -851,6 +946,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("[1,2,3,4,5]")
@ -862,6 +958,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("[[[[]]]]")
@ -873,6 +970,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("array 16")
@ -887,6 +985,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("array 32")
@ -910,6 +1009,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
@ -924,6 +1024,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("{\"\":null}")
@ -935,6 +1036,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("{\"a\": {\"b\": {\"c\": {}}}}")
@ -949,6 +1051,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("map 16")
@ -972,6 +1075,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("map 32")
@ -1002,6 +1106,7 @@ TEST_CASE("MessagePack")
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
@ -1020,10 +1125,12 @@ TEST_CASE("MessagePack")
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>()), json::parse_error&);
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>()),
"[json.exception.parse_error.110] parse error at 1: unexpected end of input");
CHECK(json::from_msgpack(std::vector<uint8_t>(), true, false).is_discarded());
}
SECTION("too short byte vector")
{
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0x87})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xcc})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xcd})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xcd, 0x00})), json::parse_error&);
@ -1039,7 +1146,12 @@ TEST_CASE("MessagePack")
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xa5, 0x68, 0x65})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0x92, 0x01})), json::parse_error&);
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0x81, 0xa1, 0x61})), json::parse_error&);
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0x87})),
"[json.exception.parse_error.110] parse error at 2: unexpected end of input");
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0xcc})),
"[json.exception.parse_error.110] parse error at 2: unexpected end of input");
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0xcd})),
@ -1070,6 +1182,32 @@ TEST_CASE("MessagePack")
"[json.exception.parse_error.110] parse error at 8: unexpected end of input");
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})),
"[json.exception.parse_error.110] parse error at 9: unexpected end of input");
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0xa5, 0x68, 0x65})),
"[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0x92, 0x01})),
"[json.exception.parse_error.110] parse error at 3: unexpected end of input");
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0x81, 0xa1, 0x61})),
"[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_msgpack(std::vector<uint8_t>({0x87}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcc}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcd}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcd, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xce}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xce, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xce, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xce, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0xa5, 0x68, 0x65}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0x92, 0x01}), true, false).is_discarded());
CHECK(json::from_msgpack(std::vector<uint8_t>({0x81, 0xA1, 0x61}), true, false).is_discarded());
}
SECTION("unsupported bytes")
@ -1079,9 +1217,12 @@ TEST_CASE("MessagePack")
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xc1})), json::parse_error&);
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0xc1})),
"[json.exception.parse_error.112] parse error at 1: error reading MessagePack; last byte: 0xC1");
CHECK(json::from_msgpack(std::vector<uint8_t>({0xc6}), true, false).is_discarded());
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0xc6})), json::parse_error&);
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0xc6})),
"[json.exception.parse_error.112] parse error at 1: error reading MessagePack; last byte: 0xC6");
CHECK(json::from_msgpack(std::vector<uint8_t>({0xc6}), true, false).is_discarded());
}
SECTION("all unsupported bytes")
@ -1099,6 +1240,7 @@ TEST_CASE("MessagePack")
})
{
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({static_cast<uint8_t>(byte)})), json::parse_error&);
CHECK(json::from_msgpack(std::vector<uint8_t>({static_cast<uint8_t>(byte)}), true, false).is_discarded());
}
}
}
@ -1108,6 +1250,7 @@ TEST_CASE("MessagePack")
CHECK_THROWS_AS(json::from_msgpack(std::vector<uint8_t>({0x81, 0xff, 0x01})), json::parse_error&);
CHECK_THROWS_WITH(json::from_msgpack(std::vector<uint8_t>({0x81, 0xff, 0x01})),
"[json.exception.parse_error.113] parse error at 2: expected a MessagePack string; last byte: 0xFF");
CHECK(json::from_msgpack(std::vector<uint8_t>({0x81, 0xff, 0x01}), true, false).is_discarded());
}
SECTION("strict mode")
@ -1124,9 +1267,34 @@ TEST_CASE("MessagePack")
CHECK_THROWS_AS(json::from_msgpack(vec), json::parse_error&);
CHECK_THROWS_WITH(json::from_msgpack(vec),
"[json.exception.parse_error.110] parse error at 2: expected end of input");
CHECK(json::from_msgpack(vec, true, false).is_discarded());
}
}
}
SECTION("SAX aborts")
{
SECTION("start_array(len)")
{
std::vector<uint8_t> v = {0x93, 0x01, 0x02, 0x03};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::msgpack));
}
SECTION("start_object(len)")
{
std::vector<uint8_t> v = {0x81, 0xa3, 0x66, 0x6F, 0x6F, 0xc2};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::msgpack));
}
SECTION("key()")
{
std::vector<uint8_t> v = {0x81, 0xa3, 0x66, 0x6F, 0x6F, 0xc2};
SaxCountdown scp(1);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::msgpack));
}
}
}

17
test/src/unit-testsuites.cpp
View File

@ -1139,7 +1139,6 @@ TEST_CASE("nst's JSONTestSuite (2)")
"test/data/nst_json_testsuite2/test_parsing/n_string_unescaped_tab.json",
"test/data/nst_json_testsuite2/test_parsing/n_string_unicode_CapitalU.json",
"test/data/nst_json_testsuite2/test_parsing/n_string_with_trailing_garbage.json",
//"test/data/nst_json_testsuite2/test_parsing/n_structure_100000_opening_arrays.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_U+2060_word_joined.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_UTF8_BOM_no_data.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_angle_bracket_..json",
@ -1165,7 +1164,6 @@ TEST_CASE("nst's JSONTestSuite (2)")
"test/data/nst_json_testsuite2/test_parsing/n_structure_object_with_trailing_garbage.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_open_array_apostrophe.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_open_array_comma.json",
//"test/data/nst_json_testsuite2/test_parsing/n_structure_open_array_object.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_open_array_open_object.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_open_array_open_string.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_open_array_string.json",
@ -1199,6 +1197,21 @@ TEST_CASE("nst's JSONTestSuite (2)")
}
}
SECTION("n (previously overflowed)")
{
for (auto filename :
{
"test/data/nst_json_testsuite2/test_parsing/n_structure_100000_opening_arrays.json",
"test/data/nst_json_testsuite2/test_parsing/n_structure_open_array_object.json"
}
)
{
CAPTURE(filename);
std::ifstream f(filename);
CHECK(not json::accept(f));
}
}
SECTION("i -> y")
{
for (auto filename :

328
test/src/unit-ubjson.cpp
View File

@ -34,6 +34,76 @@ using nlohmann::json;
#include <fstream>
class SaxCountdown : public nlohmann::json::json_sax_t
{
public:
explicit SaxCountdown(const int count) : events_left(count)
{}
bool null() override
{
return events_left-- > 0;
}
bool boolean(bool) override
{
return events_left-- > 0;
}
bool number_integer(json::number_integer_t) override
{
return events_left-- > 0;
}
bool number_unsigned(json::number_unsigned_t) override
{
return events_left-- > 0;
}
bool number_float(json::number_float_t, const std::string&) override
{
return events_left-- > 0;
}
bool string(std::string&) override
{
return events_left-- > 0;
}
bool start_object(std::size_t) override
{
return events_left-- > 0;
}
bool key(std::string&) override
{
return events_left-- > 0;
}
bool end_object() override
{
return events_left-- > 0;
}
bool start_array(std::size_t) override
{
return events_left-- > 0;
}
bool end_array() override
{
return events_left-- > 0;
}
bool parse_error(std::size_t, const std::string&, const json::exception&) override
{
return false;
}
private:
int events_left = 0;
};
TEST_CASE("UBJSON")
{
SECTION("individual values")
@ -55,6 +125,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("boolean")
@ -68,6 +139,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("false")
@ -79,6 +151,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -141,6 +214,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -153,7 +227,7 @@ TEST_CASE("UBJSON")
numbers.push_back(-10000000);
numbers.push_back(-100000000);
numbers.push_back(-1000000000);
numbers.push_back(-2147483648L);
numbers.push_back(-2147483647 - 1); // https://stackoverflow.com/a/29356002/266378
for (auto i : numbers)
{
CAPTURE(i);
@ -187,6 +261,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -220,6 +295,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -240,6 +316,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("-128..-1 (int8)")
@ -270,6 +347,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -302,6 +380,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -334,6 +413,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -368,6 +448,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -410,6 +491,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -458,6 +540,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
}
@ -493,6 +576,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -525,6 +609,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -558,6 +643,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -599,6 +685,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -646,6 +733,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
}
@ -666,6 +754,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result) == v);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
}
@ -704,6 +793,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -736,6 +826,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -769,6 +860,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -804,6 +896,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
}
@ -821,6 +914,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -832,6 +926,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -843,6 +938,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -857,6 +953,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -868,6 +965,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -879,6 +977,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -893,6 +992,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -904,6 +1004,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -915,6 +1016,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -929,6 +1031,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -940,6 +1043,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -951,6 +1055,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -967,6 +1072,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -983,6 +1089,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -994,6 +1101,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -1010,6 +1118,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -1028,6 +1137,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -1039,6 +1149,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
}
@ -1056,6 +1167,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -1067,6 +1179,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -1078,6 +1191,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -1092,6 +1206,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -1103,6 +1218,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -1114,6 +1230,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
@ -1131,6 +1248,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=false")
@ -1145,6 +1263,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
SECTION("size=true type=true")
@ -1159,6 +1278,7 @@ TEST_CASE("UBJSON")
// roundtrip
CHECK(json::from_ubjson(result) == j);
CHECK(json::from_ubjson(result, true, false) == j);
}
}
}
@ -1190,6 +1310,80 @@ TEST_CASE("UBJSON")
CHECK_THROWS_AS(json::to_ubjson(j), json::out_of_range&);
CHECK_THROWS_WITH(json::to_ubjson(j), "[json.exception.out_of_range.407] number overflow serializing 9223372036854775808");
}
SECTION("excessive size")
{
SECTION("array")
{
std::vector<uint8_t> v_ubjson = {'[', '$', 'Z', '#', 'L', 0x78, 0x28, 0x00, 0x68, 0x28, 0x69, 0x69, 0x17};
CHECK_THROWS_AS(json::from_ubjson(v_ubjson), json::out_of_range&);
json j;
nlohmann::detail::json_sax_dom_callback_parser<json> scp(j, [](int, json::parse_event_t, const json&)
{
return true;
});
CHECK_THROWS_AS(json::sax_parse(v_ubjson, &scp, json::input_format_t::ubjson), json::out_of_range&);
}
SECTION("object")
{
std::vector<uint8_t> v_ubjson = {'{', '$', 'Z', '#', 'L', 0x78, 0x28, 0x00, 0x68, 0x28, 0x69, 0x69, 0x17};
CHECK_THROWS_AS(json::from_ubjson(v_ubjson), json::out_of_range&);
json j;
nlohmann::detail::json_sax_dom_callback_parser<json> scp(j, [](int, json::parse_event_t, const json&)
{
return true;
});
CHECK_THROWS_AS(json::sax_parse(v_ubjson, &scp, json::input_format_t::ubjson), json::out_of_range&);
}
}
}
SECTION("SAX aborts")
{
SECTION("start_array()")
{
std::vector<uint8_t> v = {'[', 'T', 'F', ']'};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::ubjson));
}
SECTION("start_object()")
{
std::vector<uint8_t> v = {'{', 'i', 3, 'f', 'o', 'o', 'F', '}'};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::ubjson));
}
SECTION("key() in object")
{
std::vector<uint8_t> v = {'{', 'i', 3, 'f', 'o', 'o', 'F', '}'};
SaxCountdown scp(1);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::ubjson));
}
SECTION("start_array(len)")
{
std::vector<uint8_t> v = {'[', '#', 'i', '2', 'T', 'F'};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::ubjson));
}
SECTION("start_object(len)")
{
std::vector<uint8_t> v = {'{', '#', 'i', '1', 3, 'f', 'o', 'o', 'F'};
SaxCountdown scp(0);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::ubjson));
}
SECTION("key() in object with length")
{
std::vector<uint8_t> v = {'{', 'i', 3, 'f', 'o', 'o', 'F', '}'};
SaxCountdown scp(1);
CHECK(not json::sax_parse(v, &scp, json::input_format_t::ubjson));
}
}
SECTION("parsing values")
@ -1240,6 +1434,7 @@ TEST_CASE("UBJSON")
SECTION("optimized version (length only)")
{
// create vector with two elements of the same type
std::vector<uint8_t> v_TU = {'[', '#', 'U', 2, 'T', 'T'};
std::vector<uint8_t> v_T = {'[', '#', 'i', 2, 'T', 'T'};
std::vector<uint8_t> v_F = {'[', '#', 'i', 2, 'F', 'F'};
std::vector<uint8_t> v_Z = {'[', '#', 'i', 2, 'Z', 'Z'};
@ -1253,6 +1448,7 @@ TEST_CASE("UBJSON")
std::vector<uint8_t> v_C = {'[', '#', 'i', 2, 'C', 'a', 'C', 'a'};
// check if vector is parsed correctly
CHECK(json::from_ubjson(v_TU) == json({true, true}));
CHECK(json::from_ubjson(v_T) == json({true, true}));
CHECK(json::from_ubjson(v_F) == json({false, false}));
CHECK(json::from_ubjson(v_Z) == json({nullptr, nullptr}));
@ -1379,6 +1575,136 @@ TEST_CASE("UBJSON")
CHECK_THROWS_WITH(json::from_ubjson(v), "[json.exception.parse_error.112] parse error at 4: expected '#' after UBJSON type information; last byte: 0x02");
}
}
SECTION("strings")
{
std::vector<uint8_t> vS = {'S'};
CHECK_THROWS_AS(json::from_ubjson(vS), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vS), "[json.exception.parse_error.110] parse error at 2: unexpected end of input");
CHECK(json::from_ubjson(vS, true, false).is_discarded());
std::vector<uint8_t> v = {'S', 'i', '2', 'a'};
CHECK_THROWS_AS(json::from_ubjson(v), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(v), "[json.exception.parse_error.110] parse error at 5: unexpected end of input");
CHECK(json::from_ubjson(v, true, false).is_discarded());
std::vector<uint8_t> vC = {'C'};
CHECK_THROWS_AS(json::from_ubjson(vC), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vC), "[json.exception.parse_error.110] parse error at 2: unexpected end of input");
CHECK(json::from_ubjson(vC, true, false).is_discarded());
}
SECTION("sizes")
{
std::vector<uint8_t> vU = {'[', '#', 'U'};
CHECK_THROWS_AS(json::from_ubjson(vU), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vU), "[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_ubjson(vU, true, false).is_discarded());
std::vector<uint8_t> vi = {'[', '#', 'i'};
CHECK_THROWS_AS(json::from_ubjson(vi), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vi), "[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_ubjson(vi, true, false).is_discarded());
std::vector<uint8_t> vI = {'[', '#', 'I'};
CHECK_THROWS_AS(json::from_ubjson(vI), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vI), "[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_ubjson(vI, true, false).is_discarded());
std::vector<uint8_t> vl = {'[', '#', 'l'};
CHECK_THROWS_AS(json::from_ubjson(vl), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vl), "[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_ubjson(vl, true, false).is_discarded());
std::vector<uint8_t> vL = {'[', '#', 'L'};
CHECK_THROWS_AS(json::from_ubjson(vL), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vL), "[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_ubjson(vL, true, false).is_discarded());
std::vector<uint8_t> v0 = {'[', '#', 'T', ']'};
CHECK_THROWS_AS(json::from_ubjson(v0), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(v0), "[json.exception.parse_error.113] parse error at 3: byte after '#' must denote a number type; last byte: 0x54");
CHECK(json::from_ubjson(v0, true, false).is_discarded());
}
SECTION("types")
{
std::vector<uint8_t> v0 = {'[', '$'};
CHECK_THROWS_AS(json::from_ubjson(v0), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(v0), "[json.exception.parse_error.110] parse error at 3: unexpected end of input");
CHECK(json::from_ubjson(v0, true, false).is_discarded());
std::vector<uint8_t> vi = {'[', '$', '#'};
CHECK_THROWS_AS(json::from_ubjson(vi), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vi), "[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_ubjson(vi, true, false).is_discarded());
std::vector<uint8_t> vT = {'[', '$', 'T'};
CHECK_THROWS_AS(json::from_ubjson(vT), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vT), "[json.exception.parse_error.110] parse error at 4: unexpected end of input");
CHECK(json::from_ubjson(vT, true, false).is_discarded());
}
SECTION("arrays")
{
std::vector<uint8_t> vST = {'[', '$', 'i', '#', 'i', 2, 1};
CHECK_THROWS_AS(json::from_ubjson(vST), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vST), "[json.exception.parse_error.110] parse error at 8: unexpected end of input");
CHECK(json::from_ubjson(vST, true, false).is_discarded());
std::vector<uint8_t> vS = {'[', '#', 'i', 2, 'i', 1};
CHECK_THROWS_AS(json::from_ubjson(vS), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vS), "[json.exception.parse_error.110] parse error at 7: unexpected end of input");
CHECK(json::from_ubjson(vS, true, false).is_discarded());
std::vector<uint8_t> v = {'[', 'i', 2, 'i', 1};
CHECK_THROWS_AS(json::from_ubjson(v), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(v), "[json.exception.parse_error.110] parse error at 6: unexpected end of input");
CHECK(json::from_ubjson(v, true, false).is_discarded());
}
SECTION("objects")
{
std::vector<uint8_t> vST = {'{', '$', 'i', '#', 'i', 2, 'i', 1, 'a', 1};
CHECK_THROWS_AS(json::from_ubjson(vST), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vST), "[json.exception.parse_error.110] parse error at 11: unexpected end of input");
CHECK(json::from_ubjson(vST, true, false).is_discarded());
std::vector<uint8_t> vT = {'{', '$', 'i', 'i', 1, 'a', 1};
CHECK_THROWS_AS(json::from_ubjson(vT), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vT), "[json.exception.parse_error.112] parse error at 4: expected '#' after UBJSON type information; last byte: 0x69");
CHECK(json::from_ubjson(vT, true, false).is_discarded());
std::vector<uint8_t> vS = {'{', '#', 'i', 2, 'i', 1, 'a', 'i', 1};
CHECK_THROWS_AS(json::from_ubjson(vS), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vS), "[json.exception.parse_error.110] parse error at 10: unexpected end of input");
CHECK(json::from_ubjson(vS, true, false).is_discarded());
std::vector<uint8_t> v = {'{', 'i', 1, 'a', 'i', 1};
CHECK_THROWS_AS(json::from_ubjson(v), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(v), "[json.exception.parse_error.110] parse error at 7: unexpected end of input");
CHECK(json::from_ubjson(v, true, false).is_discarded());
std::vector<uint8_t> v2 = {'{', 'i', 1, 'a', 'i', 1, 'i'};
CHECK_THROWS_AS(json::from_ubjson(v2), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(v2), "[json.exception.parse_error.110] parse error at 8: unexpected end of input");
CHECK(json::from_ubjson(v2, true, false).is_discarded());
std::vector<uint8_t> v3 = {'{', 'i', 1, 'a'};
CHECK_THROWS_AS(json::from_ubjson(v3), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(v3), "[json.exception.parse_error.110] parse error at 5: unexpected end of input");
CHECK(json::from_ubjson(v3, true, false).is_discarded());
std::vector<uint8_t> vST1 = {'{', '$', 'd', '#', 'i', 2, 'i', 1, 'a'};
CHECK_THROWS_AS(json::from_ubjson(vST1), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vST1), "[json.exception.parse_error.110] parse error at 10: unexpected end of input");
CHECK(json::from_ubjson(vST1, true, false).is_discarded());
std::vector<uint8_t> vST2 = {'{', '#', 'i', 2, 'i', 1, 'a'};
CHECK_THROWS_AS(json::from_ubjson(vST2), json::parse_error&);
CHECK_THROWS_WITH(json::from_ubjson(vST2), "[json.exception.parse_error.110] parse error at 8: unexpected end of input");
CHECK(json::from_ubjson(vST2, true, false).is_discarded());
}
}
SECTION("writing optimized values")