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Re-template json_pointer on string type (#3415)

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* Make exception context optional

Change exception context parameter to pointer and replace context with
nullptr where appropriate.

* Support escaping other string types

* Add string concatenation function

Add variadic concat() function for concatenating char *, char, and
string types.

* Replace string concatenations using + with concat()

* Template json_pointer on string type

Change json_pointer from being templated on basic_json to being
templated on string type.

* Add unit test for #3388

Closes #3388.

* Fix regression test for #2958

* Add backwards compatibility with json_pointer<basic_json>

* Update json_pointer docs

* Allow comparing different json_pointers

* Update version numbers
This commit is contained in:
Florian Albrechtskirchinger
2022-04-12 14:18:16 +02:00
committed by GitHub
parent 1deeb434c6
commit 616caea27a
28 changed files with 1638 additions and 784 deletions
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58
include/nlohmann/detail/input/binary_reader.hpp
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@@ -20,6 +20,7 @@
#include <nlohmann/detail/macro_scope.hpp>
#include <nlohmann/detail/meta/is_sax.hpp>
#include <nlohmann/detail/meta/type_traits.hpp>
#include <nlohmann/detail/string_concat.hpp>
#include <nlohmann/detail/value_t.hpp>
namespace nlohmann
@@ -139,8 +140,8 @@ class binary_reader
if (JSON_HEDLEY_UNLIKELY(current != std::char_traits<char_type>::eof()))
{
return sax->parse_error(chars_read, get_token_string(),
parse_error::create(110, chars_read, exception_message(format, "expected end of input; last byte: 0x" + get_token_string(), "value"), BasicJsonType()));
return sax->parse_error(chars_read, get_token_string(), parse_error::create(110, chars_read,
exception_message(format, concat("expected end of input; last byte: 0x", get_token_string()), "value"), nullptr));
}
}
@@ -216,7 +217,8 @@ class binary_reader
if (JSON_HEDLEY_UNLIKELY(len < 1))
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "string length must be at least 1, is " + std::to_string(len), "string"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
exception_message(input_format_t::bson, concat("string length must be at least 1, is ", std::to_string(len)), "string"), nullptr));
}
return get_string(input_format_t::bson, len - static_cast<NumberType>(1), result) && get() != std::char_traits<char_type>::eof();
@@ -237,7 +239,8 @@ class binary_reader
if (JSON_HEDLEY_UNLIKELY(len < 0))
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "byte array length cannot be negative, is " + std::to_string(len), "binary"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
exception_message(input_format_t::bson, concat("byte array length cannot be negative, is ", std::to_string(len)), "binary"), nullptr));
}
// All BSON binary values have a subtype
@@ -319,7 +322,9 @@ class binary_reader
{
std::array<char, 3> cr{{}};
static_cast<void>((std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast<unsigned char>(element_type))); // NOLINT(cppcoreguidelines-pro-type-vararg,hicpp-vararg)
return sax->parse_error(element_type_parse_position, std::string(cr.data()), parse_error::create(114, element_type_parse_position, "Unsupported BSON record type 0x" + std::string(cr.data()), BasicJsonType()));
std::string cr_str{cr.data()};
return sax->parse_error(element_type_parse_position, cr_str,
parse_error::create(114, element_type_parse_position, concat("Unsupported BSON record type 0x", cr_str), nullptr));
}
}
}
@@ -719,7 +724,8 @@ class binary_reader
case cbor_tag_handler_t::error:
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
exception_message(input_format_t::cbor, concat("invalid byte: 0x", last_token), "value"), nullptr));
}
case cbor_tag_handler_t::ignore:
@@ -876,7 +882,8 @@ class binary_reader
default: // anything else (0xFF is handled inside the other types)
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
exception_message(input_format_t::cbor, concat("invalid byte: 0x", last_token), "value"), nullptr));
}
}
}
@@ -971,7 +978,8 @@ class binary_reader
default:
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x60-0x7B) or indefinite string type (0x7F); last byte: 0x" + last_token, "string"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read,
exception_message(input_format_t::cbor, concat("expected length specification (0x60-0x7B) or indefinite string type (0x7F); last byte: 0x", last_token), "string"), nullptr));
}
}
}
@@ -1070,7 +1078,8 @@ class binary_reader
default:
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x40-0x5B) or indefinite binary array type (0x5F); last byte: 0x" + last_token, "binary"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read,
exception_message(input_format_t::cbor, concat("expected length specification (0x40-0x5B) or indefinite binary array type (0x5F); last byte: 0x", last_token), "binary"), nullptr));
}
}
}
@@ -1540,7 +1549,8 @@ class binary_reader
default: // anything else
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::msgpack, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
exception_message(input_format_t::msgpack, concat("invalid byte: 0x", last_token), "value"), nullptr));
}
}
}
@@ -1622,7 +1632,8 @@ class binary_reader
default:
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::msgpack, "expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0x" + last_token, "string"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read,
exception_message(input_format_t::msgpack, concat("expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0x", last_token), "string"), nullptr));
}
}
}
@@ -1872,7 +1883,8 @@ class binary_reader
default:
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L); last byte: 0x" + last_token, "string"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read,
exception_message(input_format_t::ubjson, concat("expected length type specification (U, i, I, l, L); last byte: 0x", last_token), "string"), nullptr));
}
}
@@ -1942,7 +1954,8 @@ class binary_reader
default:
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L) after '#'; last byte: 0x" + last_token, "size"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read,
exception_message(input_format_t::ubjson, concat("expected length type specification (U, i, I, l, L) after '#'; last byte: 0x", last_token), "size"), nullptr));
}
}
}
@@ -1980,7 +1993,8 @@ class binary_reader
return false;
}
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "expected '#' after type information; last byte: 0x" + last_token, "size"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
exception_message(input_format_t::ubjson, concat("expected '#' after type information; last byte: 0x", last_token), "size"), nullptr));
}
return get_ubjson_size_value(result.first);
@@ -2070,7 +2084,8 @@ class binary_reader
if (JSON_HEDLEY_UNLIKELY(current > 127))
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "byte after 'C' must be in range 0x00..0x7F; last byte: 0x" + last_token, "char"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read,
exception_message(input_format_t::ubjson, concat("byte after 'C' must be in range 0x00..0x7F; last byte: 0x", last_token), "char"), nullptr));
}
string_t s(1, static_cast<typename string_t::value_type>(current));
return sax->string(s);
@@ -2091,7 +2106,8 @@ class binary_reader
default: // anything else
{
auto last_token = get_token_string();
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "invalid byte: 0x" + last_token, "value"), BasicJsonType()));
return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read,
exception_message(input_format_t::ubjson, concat("invalid byte: 0x", last_token), "value"), nullptr));
}
}
}
@@ -2269,7 +2285,8 @@ class binary_reader
if (JSON_HEDLEY_UNLIKELY(result_remainder != token_type::end_of_input))
{
return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType()));
return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read,
exception_message(input_format_t::ubjson, concat("invalid number text: ", number_lexer.get_token_string()), "high-precision number"), nullptr));
}
switch (result_number)
@@ -2295,7 +2312,8 @@ class binary_reader
case token_type::end_of_input:
case token_type::literal_or_value:
default:
return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read, exception_message(input_format_t::ubjson, "invalid number text: " + number_lexer.get_token_string(), "high-precision number"), BasicJsonType()));
return sax->parse_error(chars_read, number_string, parse_error::create(115, chars_read,
exception_message(input_format_t::ubjson, concat("invalid number text: ", number_lexer.get_token_string()), "high-precision number"), nullptr));
}
}
@@ -2451,7 +2469,7 @@ class binary_reader
if (JSON_HEDLEY_UNLIKELY(current == std::char_traits<char_type>::eof()))
{
return sax->parse_error(chars_read, "<end of file>",
parse_error::create(110, chars_read, exception_message(format, "unexpected end of input", context), BasicJsonType()));
parse_error::create(110, chars_read, exception_message(format, "unexpected end of input", context), nullptr));
}
return true;
}
@@ -2501,7 +2519,7 @@ class binary_reader
JSON_ASSERT(false); // NOLINT(cert-dcl03-c,hicpp-static-assert,misc-static-assert) LCOV_EXCL_LINE
}
return error_msg + " " + context + ": " + detail;
return concat(error_msg, ' ', context, ": ", detail);
}
private: