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Merge branch 'develop' of https://github.com/nlohmann/json into issue2179 

 Conflicts:
	single_include/nlohmann/json.hpp
pull/2258/head
Niels Lohmann 2020-07-11 13:20:16 +02:00
parent 5f146cb853 cbafed3494
commit 9c21285133
No known key found for this signature in database
GPG Key ID: 7F3CEA63AE251B69
44 changed files with 1769 additions and 868 deletions
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27
.clang-tidy
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@ -1,23 +1,20 @@
Checks: '-*,
bugprone-*,
cert-*,
clang-analyzer-*,
google-*,
-google-runtime-references,
Checks: '*,
-cppcoreguidelines-avoid-goto,
-cppcoreguidelines-avoid-magic-numbers,
-cppcoreguidelines-macro-usage,
-fuchsia-default-arguments-calls,
-fuchsia-default-arguments-declarations,
-fuchsia-overloaded-operator,
-google-explicit-constructor,
hicpp-*,
-google-runtime-references,
-hicpp-avoid-goto,
-hicpp-explicit-conversions,
-hicpp-no-array-decay,
-hicpp-uppercase-literal-suffix,
-hicpp-explicit-conversions,
misc-*,
-misc-non-private-member-variables-in-classes,
llvm-*,
-llvm-header-guard,
modernize-*,
-llvm-include-order,
-misc-non-private-member-variables-in-classes,
-modernize-use-trailing-return-type,
performance-*,
portability-*,
readability-*,
-readability-magic-numbers,
-readability-uppercase-literal-suffix'

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.github/ISSUE_TEMPLATE/Feature_request.md vendored
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@ -1,16 +0,0 @@
---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: 'kind: enhancement/improvement'
assignees: ''
---
#### Which feature do you want to see in the library?
<!-- Describe the feature in as much detail as possible. -->
#### How would the feature be usable for other users?
<!-- Include sample usage where appropriate. -->

5
.github/ISSUE_TEMPLATE/config.yml vendored 100644
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@ -0,0 +1,5 @@
blank_issues_enabled: false
contact_links:
- name: Ask a question
url: https://github.com/nlohmann/json/discussions
about: Ask questions and discuss with other community members

40
.github/ISSUE_TEMPLATE/question.md vendored
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@ -1,40 +0,0 @@
---
name: Question
about: Ask a question regarding the library.
title: ''
labels: 'kind: question'
assignees: ''
---
<!-- Provide a concise summary of the issue in the title above. -->
#### What do you want to achieve?
<!-- Please describe the feature as detailed as possible. -->
#### What have you tried?
<!-- There are thousands of issues to search: https://github.com/nlohmann/json/issues?q=is%3Aissue+ -->
<!-- There is a full documentation of the API: https://nlohmann.github.io/json/ -->
<!-- There is a detailed README file: https://github.com/nlohmann/json/blob/develop/README.md -->
#### Can you provide a small code example?
<!-- Please understand that we cannot analyze and debug large code bases. -->
#### Which compiler and operating system are you using?
<!-- Include as many relevant details about the environment you experienced the bug in. -->
<!-- Make sure you use a supported compiler, see https://github.com/nlohmann/json#supported-compilers. -->
- Compiler: ___
- Operating system: ___
#### Which version of the library did you use?
<!-- Please add an `x` to the respective line. -->
- [ ] latest release version 3.7.3
- [ ] other release - please state the version: ___
- [ ] the `develop` branch

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.github/workflows/codeql-analysis.yml vendored 100644
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@ -0,0 +1,54 @@
name: "Code scanning - action"
on:
push:
branches: [develop, ]
pull_request:
# The branches below must be a subset of the branches above
branches: [develop]
schedule:
- cron: '0 19 * * 1'
jobs:
CodeQL-Build:
runs-on: ubuntu-latest
steps:
- name: Checkout repository
uses: actions/checkout@v2
with:
# We must fetch at least the immediate parents so that if this is
# a pull request then we can checkout the head.
fetch-depth: 2
# If this run was triggered by a pull request event, then checkout
# the head of the pull request instead of the merge commit.
- run: git checkout HEAD^2
if: ${{ github.event_name == 'pull_request' }}
# Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL
uses: github/codeql-action/init@v1
# Override language selection by uncommenting this and choosing your languages
# with:
# languages: go, javascript, csharp, python, cpp, java
# Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
# If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild
uses: github/codeql-action/autobuild@v1
# ℹ️ Command-line programs to run using the OS shell.
# 📚 https://git.io/JvXDl
# ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
# and modify them (or add more) to build your code if your project
# uses a compiled language
#- run: |
# make bootstrap
# make release
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v1

16
CMakeLists.txt
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@ -15,6 +15,12 @@ include(ExternalProject)
##
## OPTIONS
##
if (POLICY CMP0077)
# Allow CMake 3.13+ to override options when using FetchContent / add_subdirectory.
cmake_policy(SET CMP0077 NEW)
endif ()
option(JSON_BuildTests "Build the unit tests when BUILD_TESTING is enabled." ON)
option(JSON_Install "Install CMake targets during install step." ON)
option(JSON_MultipleHeaders "Use non-amalgamated version of the library." OFF)
@ -73,6 +79,12 @@ if (MSVC)
)
endif()
# Install a pkg-config file, so other tools can find this.
CONFIGURE_FILE(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake/pkg-config.pc.in"
"${CMAKE_CURRENT_BINARY_DIR}/${PROJECT_NAME}.pc"
)
##
## TESTS
## create and configure the unit test target
@ -133,4 +145,8 @@ endif()
NAMESPACE ${PROJECT_NAME}::
DESTINATION ${NLOHMANN_JSON_CONFIG_INSTALL_DIR}
)
install(
FILES "${CMAKE_BINARY_DIR}/${PROJECT_NAME}.pc"
DESTINATION lib/pkgconfig
)
endif()

4
Makefile
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@ -97,6 +97,7 @@ doctest:
# -Wno-exit-time-destructors: warning in json code triggered by NLOHMANN_JSON_SERIALIZE_ENUM
# -Wno-float-equal: not all comparisons in the tests can be replaced by Approx
# -Wno-keyword-macro: unit-tests use "#define private public"
# -Wno-missing-prototypes: for NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE
# -Wno-padded: padding is nothing to warn about
# -Wno-range-loop-analysis: items tests "for(const auto i...)"
# -Wno-switch-enum -Wno-covered-switch-default: pedantic/contradicting warnings about switches
@ -113,6 +114,7 @@ pedantic_clang:
-Wno-exit-time-destructors \
-Wno-float-equal \
-Wno-keyword-macro \
-Wno-missing-prototypes \
-Wno-padded \
-Wno-range-loop-analysis \
-Wno-switch-enum -Wno-covered-switch-default \
@ -253,7 +255,7 @@ pedantic_gcc:
-Wmismatched-tags \
-Wmissing-attributes \
-Wmissing-braces \
-Wmissing-declarations \
-Wno-missing-declarations \
-Wmissing-field-initializers \
-Wmissing-include-dirs \
-Wmissing-profile \

65
README.md
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@ -27,6 +27,7 @@
- [Integration](#integration)
- [CMake](#cmake)
- [Package Managers](#package-managers)
- [Pkg-config](#pkg-config)
- [Examples](#examples)
- [JSON as first-class data type](#json-as-first-class-data-type)
- [Serialization / Deserialization](#serialization--deserialization)
@ -230,6 +231,20 @@ Please file issues [here](https://github.com/build2-packaging/nlohmann-json) if
If you are using [`wsjcpp`](https://wsjcpp.org), you can use the command `wsjcpp install "https://github.com/nlohmann/json:develop"` to get the latest version. Note you can change the branch ":develop" to an existing tag or another branch.
### Pkg-config
If you are using bare Makefiles, you can use `pkg-config` to generate the include flags that point to where the library is installed:
```sh
pkg-config nlohmann_json --cflags
```
Users of the Meson build system will also be able to use a system wide library, which will be found by `pkg-config`:
```meson
json = dependency('nlohmann_json', required: true)
```
## Examples
Beside the examples below, you may want to check the [documentation](https://nlohmann.github.io/json/) where each function contains a separate code example (e.g., check out [`emplace()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a5338e282d1d02bed389d852dd670d98d.html#a5338e282d1d02bed389d852dd670d98d)). All [example files](https://github.com/nlohmann/json/tree/develop/doc/examples) can be compiled and executed on their own (e.g., file [emplace.cpp](https://github.com/nlohmann/json/blob/develop/doc/examples/emplace.cpp)).
@ -869,6 +884,42 @@ Some important things:
* In function `from_json`, use function [`at()`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a93403e803947b86f4da2d1fb3345cf2c.html#a93403e803947b86f4da2d1fb3345cf2c) to access the object values rather than `operator[]`. In case a key does not exist, `at` throws an exception that you can handle, whereas `operator[]` exhibits undefined behavior.
* You do not need to add serializers or deserializers for STL types like `std::vector`: the library already implements these.
#### Simplify your life with macros
If you just want to serialize/deserialize some structs, the `to_json`/`from_json` functions can be a lot of boilerplate.
There are two macros to make your life easier as long as you (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object:
- `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the namespace of the class/struct to create code for.
- `NLOHMANN_DEFINE_TYPE_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the class/struct to create code for. This macro can also access private members.
In both macros, the first parameter is the name of the class/struct, and all remaining parameters name the members.
##### Examples
The `to_json`/`from_json` functions for the `person` struct above can be created with:
```cpp
namespace ns {
NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(person, name, address, age)
}
```
Here is an example with private members, where `NLOHMANN_DEFINE_TYPE_INTRUSIVE` is needed:
```cpp
namespace ns {
class address {
private:
std::string street;
int housenumber;
int postcode;
public:
NLOHMANN_DEFINE_TYPE_INTRUSIVE(address, street, housenumber, postcode)
};
}
```
#### How do I convert third-party types?
@ -1508,7 +1559,7 @@ The library supports **Unicode input** as follows:
### Comments in JSON
This library does not support comments. It does so for three reasons:
This library does not support comments by default. It does so for three reasons:
1. Comments are not part of the [JSON specification](https://tools.ietf.org/html/rfc8259). You may argue that `//` or `/* */` are allowed in JavaScript, but JSON is not JavaScript.
2. This was not an oversight: Douglas Crockford [wrote on this](https://plus.google.com/118095276221607585885/posts/RK8qyGVaGSr) in May 2012:
@ -1519,11 +1570,7 @@ This library does not support comments. It does so for three reasons:
3. It is dangerous for interoperability if some libraries would add comment support while others don't. Please check [The Harmful Consequences of the Robustness Principle](https://tools.ietf.org/html/draft-iab-protocol-maintenance-01) on this.
This library will not support comments in the future. If you wish to use comments, I see three options:
1. Strip comments before using this library.
2. Use a different JSON library with comment support.
3. Use a format that natively supports comments (e.g., YAML or JSON5).
However, you can pass set parameter `ignore_comments` to true in the `parse` function to ignore `//` or `/* */` comments. Comments will then be treated as whitespace.
### Order of object keys
@ -1542,7 +1589,7 @@ Here is a related issue [#1924](https://github.com/nlohmann/json/issues/1924).
### Further notes
- The code contains numerous debug **assertions** which can be switched off by defining the preprocessor macro `NDEBUG`, see the [documentation of `assert`](https://en.cppreference.com/w/cpp/error/assert). In particular, note [`operator[]`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a233b02b0839ef798942dd46157cc0fe6.html#a233b02b0839ef798942dd46157cc0fe6) implements **unchecked access** for const objects: If the given key is not present, the behavior is undefined (think of a dereferenced null pointer) and yields an [assertion failure](https://github.com/nlohmann/json/issues/289) if assertions are switched on. If you are not sure whether an element in an object exists, use checked access with the [`at()` function](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a73ae333487310e3302135189ce8ff5d8.html#a73ae333487310e3302135189ce8ff5d8).
- The code contains numerous debug **assertions** which can be switched off by defining the preprocessor macro `NDEBUG`, see the [documentation of `assert`](https://en.cppreference.com/w/cpp/error/assert). In particular, note [`operator[]`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a233b02b0839ef798942dd46157cc0fe6.html#a233b02b0839ef798942dd46157cc0fe6) implements **unchecked access** for const objects: If the given key is not present, the behavior is undefined (think of a dereferenced null pointer) and yields an [assertion failure](https://github.com/nlohmann/json/issues/289) if assertions are switched on. If you are not sure whether an element in an object exists, use checked access with the [`at()` function](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a73ae333487310e3302135189ce8ff5d8.html#a73ae333487310e3302135189ce8ff5d8). Furthermore, you can define `JSON_ASSERT(x)` to replace calls to `assert(x)`.
- As the exact type of a number is not defined in the [JSON specification](https://tools.ietf.org/html/rfc8259.html), this library tries to choose the best fitting C++ number type automatically. As a result, the type `double` may be used to store numbers which may yield [**floating-point exceptions**](https://github.com/nlohmann/json/issues/181) in certain rare situations if floating-point exceptions have been unmasked in the calling code. These exceptions are not caused by the library and need to be fixed in the calling code, such as by re-masking the exceptions prior to calling library functions.
- The code can be compiled without C++ **runtime type identification** features; that is, you can use the `-fno-rtti` compiler flag.
- **Exceptions** are used widely within the library. They can, however, be switched off with either using the compiler flag `-fno-exceptions` or by defining the symbol `JSON_NOEXCEPTION`. In this case, exceptions are replaced by `abort()` calls. You can further control this behavior by defining `JSON_THROW_USER´` (overriding `throw`), `JSON_TRY_USER` (overriding `try`), and `JSON_CATCH_USER` (overriding `catch`). Note that `JSON_THROW_USER` should leave the current scope (e.g., by throwing or aborting), as continuing after it may yield undefined behavior.
@ -1559,4 +1606,6 @@ $ cmake --build .
$ ctest --output-on-failure
```
For more information, have a look at the file [.travis.yml](https://github.com/nlohmann/json/blob/master/.travis.yml).
Note that during the `ctest` stage, several JSON test files are downloaded from an [external repository](https://github.com/nlohmann/json_test_data). If policies forbid downloading artifacts during testing, you can download the files yourself and pass the directory with the test files via `-DJSON_TestDataDirectory=path` to CMake. Then, no Internet connectivity is required. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information.
In case you have downloaded the library rather than checked out the code via Git, test `cmake_fetch_content_configure`. Please execute `ctest -LE git_required` to skip these tests. See [issue #2189](https://github.com/nlohmann/json/issues/2189) for more information.

29
cmake/download_test_data.cmake
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@ -1,17 +1,22 @@
find_package(Git)
set(JSON_TEST_DATA_URL https://github.com/nlohmann/json_test_data)
set(JSON_TEST_DATA_VERSION 2.0.0)
set(JSON_TEST_DATA_VERSION 3.0.0)
# target to download test data
add_custom_target(download_test_data
COMMAND test -d json_test_data || ${GIT_EXECUTABLE} clone -c advice.detachedHead=false --branch v${JSON_TEST_DATA_VERSION} ${JSON_TEST_DATA_URL}.git --quiet --depth 1
COMMENT "Downloading test data from ${JSON_TEST_DATA_URL} (v${JSON_TEST_DATA_VERSION})"
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
# create a header with the path to the downloaded test data
file(WRITE ${CMAKE_BINARY_DIR}/include/test_data.hpp "#define TEST_DATA_DIRECTORY \"${CMAKE_BINARY_DIR}/json_test_data\"\n")
# if variable is set, use test data from given directory rather than downloading them
if(JSON_TestDataDirectory)
message(STATUS "Using test data in ${JSON_TestDataDirectory}.")
add_custom_target(download_test_data)
file(WRITE ${CMAKE_BINARY_DIR}/include/test_data.hpp "#define TEST_DATA_DIRECTORY \"${JSON_TestDataDirectory}\"\n")
else()
find_package(Git)
# target to download test data
add_custom_target(download_test_data
COMMAND test -d json_test_data || ${GIT_EXECUTABLE} clone -c advice.detachedHead=false --branch v${JSON_TEST_DATA_VERSION} ${JSON_TEST_DATA_URL}.git --quiet --depth 1
COMMENT "Downloading test data from ${JSON_TEST_DATA_URL} (v${JSON_TEST_DATA_VERSION})"
WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
)
# create a header with the path to the downloaded test data
file(WRITE ${CMAKE_BINARY_DIR}/include/test_data.hpp "#define TEST_DATA_DIRECTORY \"${CMAKE_BINARY_DIR}/json_test_data\"\n")
endif()
# determine the operating system (for debug and support purposes)
find_program(UNAME_COMMAND uname)

4
cmake/pkg-config.pc.in 100644
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@ -0,0 +1,4 @@
Name: ${PROJECT_NAME}
Description: JSON for Modern C++
Version: ${PROJECT_VERSION}
Cflags: -I${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_INCLUDEDIR}

37
doc/mkdocs/docs/features/arbitrary_types.md
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@ -81,6 +81,43 @@ Some important things:
* You do not need to add serializers or deserializers for STL types like `std::vector`: the library already implements these.
## Simplify your life with macros
If you just want to serialize/deserialize some structs, the `to_json`/`from_json` functions can be a lot of boilerplate.
There are two macros to make your life easier as long as you (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object:
- `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the namespace of the class/struct to create code for.
- `NLOHMANN_DEFINE_TYPE_INTRUSIVE(name, member1, member2, ...)` is to be defined inside of the class/struct to create code for. This macro can also access private members.
In both macros, the first parameter is the name of the class/struct, and all remaining parameters name the members.
??? example
The `to_json`/`from_json` functions for the `person` struct above can be created with:
```cpp
namespace ns {
NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(person, name, address, age)
}
```
Here is an example with private members, where `NLOHMANN_DEFINE_TYPE_INTRUSIVE` is needed:
```cpp
namespace ns {
class address {
private:
std::string street;
int housenumber;
int postcode;
public:
NLOHMANN_DEFINE_TYPE_INTRUSIVE(address, street, housenumber, postcode)
};
}
```
## How do I convert third-party types?
This requires a bit more advanced technique. But first, let's see how this conversion mechanism works:

7
doc/mkdocs/docs/features/binary_formats/messagepack.md
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@ -31,7 +31,8 @@ number_unsigned | 128..255 | uint 8 | 0xCC
number_unsigned | 256..65535 | uint 16 | 0xCD
number_unsigned | 65536..4294967295 | uint 32 | 0xCE
number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xCF
number_float | *any value* | float 64 | 0xCB
number_float | *any value representable by a float* | float 32 | 0xCA
number_float | *any value NOT representable by a float* | float 64 | 0xCB
string | *length*: 0..31 | fixstr | 0xA0..0xBF
string | *length*: 32..255 | str 8 | 0xD9
string | *length*: 256..65535 | str 16 | 0xDA
@ -61,10 +62,6 @@ binary | *size*: 65536..4294967295 | bin 32 | 0xC6
- arrays with more than 4294967295 elements
- objects with more than 4294967295 elements
!!! info "Unused MessagePack types"
The following MessagePack types are not used in the conversion: float 32 (0xCA)
!!! info "NaN/infinity handling"
If NaN or Infinity are stored inside a JSON number, they are serialized properly. function which serializes NaN or Infinity to `null`.

55
doc/mkdocs/docs/features/macros.md 100644
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@ -0,0 +1,55 @@
# Supported Macros
Some aspects of the library can be configured by defining preprocessor macros before including the `json.hpp` header.
## `JSON_CATCH_USER(exception)`
This macro overrides `#!cpp catch` calls inside the library. The argument is the type of the exception to catch. As of version 3.8.0, the library only catches `std::out_of_range` exceptions internally to rethrow them as [`json::out_of_range`](../home/exceptions.md#out-of-range) exceptions. The macro is always followed by a scope.
See [Switch off exceptions](../home/exceptions.md#switch-off-exceptions) for an example.
## `JSON_NOEXCEPTION`
Exceptions can be switched off by defining the symbol `JSON_NOEXCEPTION`.
When defining `JSON_NOEXCEPTION`, `#!cpp try` is replaced by `#!cpp if (true)`,
`#!cpp catch` is replaced by `#!cpp if (false)`, and `#!cpp throw` is replaced by `#!cpp std::abort()`.
The same effect is achieved by setting the compiler flag `-fno-exceptions`.
## `JSON_SKIP_UNSUPPORTED_COMPILER_CHECK`
When defined, the library will not create a compile error when a known unsupported compiler is detected. This allows to use the library with compilers that do not fully support C++11 and may only work if unsupported features are not used.
## `JSON_THROW_USER(exception)`
This macro overrides `#!cpp throw` calls inside the library. The argument is the exception to be thrown. Note that `JSON_THROW_USER` should leave the current scope (e.g., by throwing or aborting), as continuing after it may yield undefined behavior.
See [Switch off exceptions](../home/exceptions.md#switch-off-exceptions) for an example.
## `JSON_TRY_USER`
This macro overrides `#!cpp try` calls inside the library. It has no arguments and is always followed by a scope.
See [Switch off exceptions](../home/exceptions.md#switch-off-exceptions) for an example.
## `NLOHMANN_DEFINE_TYPE_INTRUSIVE(type, member...)`
This macro can be used to simplify the serialization/deserialization of types if (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object.
The macro is to be defined inside of the class/struct to create code for. Unlike [`NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE`](#nlohmann_define_type_non_intrusivetype-member), it can access private members.
The first parameter is the name of the class/struct, and all remaining parameters name the members.
See [Simplify your life with macros](arbitrary_types.md#simplify-your-life-with-macros) for an example.
## `NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(type, member...)`
This macro can be used to simplify the serialization/deserialization of types if (1) want to use a JSON object as serialization and (2) want to use the member variable names as object keys in that object.
The macro is to be defined inside of the namespace of the class/struct to create code for. Private members cannot be accessed. Use [`NLOHMANN_DEFINE_TYPE_INTRUSIVE`](#nlohmann_define_type_intrusivetype-member) in these scenarios.
The first parameter is the name of the class/struct, and all remaining parameters name the members.
See [Simplify your life with macros](arbitrary_types.md#simplify-your-life-with-macros) for an example.
## `NLOHMANN_JSON_SERIALIZE_ENUM(type, ...)`
This macro simplifies the serialization/deserialization of enum types. See [Specializing enum conversion](enum_conversion.md) for more information.

18
doc/mkdocs/docs/home/exceptions.md
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@ -32,6 +32,24 @@ Exceptions are used widely within the library. They can, however, be switched of
Note that `JSON_THROW_USER` should leave the current scope (e.g., by throwing or aborting), as continuing after it may yield undefined behavior.
??? example
The code below switches off exceptions and creates a log entry with a detailed error message in case of errors.
```cpp
#include <iostream>
#define JSON_TRY_USER if(true)
#define JSON_CATCH_USER(exception) if(false)
#define JSON_THROW_USER(exception) \
{std::clog << "Error in " << __FILE__ << ":" << __LINE__ \
<< " (function " << __FUNCTION__ << ") - " \
<< (exception).what() << std::endl; \
std::abort();}
#include <nlohmann/json.hpp>
```
## Parse errors
This exception is thrown by the library when a parse error occurs. Parse errors

1
doc/mkdocs/mkdocs.yml
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@ -49,6 +49,7 @@ nav:
- features/json_patch.md
- features/merge_patch.md
- features/enum_conversion.md
- features/macros.md
- Parsing:
- features/parsing/index.md
- features/parsing/parse_exceptions.md

81
include/nlohmann/detail/conversions/to_chars.hpp
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@ -1,7 +1,6 @@
#pragma once
#include <array> // array
#include <cassert> // assert
#include <cmath> // signbit, isfinite
#include <cstdint> // intN_t, uintN_t
#include <cstring> // memcpy, memmove
@ -63,8 +62,8 @@ struct diyfp // f * 2^e
*/
static diyfp sub(const diyfp& x, const diyfp& y) noexcept
{
assert(x.e == y.e);
assert(x.f >= y.f);
JSON_ASSERT(x.e == y.e);
JSON_ASSERT(x.f >= y.f);
return {x.f - y.f, x.e};
}
@ -140,7 +139,7 @@ struct diyfp // f * 2^e
*/
static diyfp normalize(diyfp x) noexcept
{
assert(x.f != 0);
JSON_ASSERT(x.f != 0);
while ((x.f >> 63u) == 0)
{
@ -159,8 +158,8 @@ struct diyfp // f * 2^e
{
const int delta = x.e - target_exponent;
assert(delta >= 0);
assert(((x.f << delta) >> delta) == x.f);
JSON_ASSERT(delta >= 0);
JSON_ASSERT(((x.f << delta) >> delta) == x.f);
return {x.f << delta, target_exponent};
}
@ -182,8 +181,8 @@ boundaries.
template <typename FloatType>
boundaries compute_boundaries(FloatType value)
{
assert(std::isfinite(value));
assert(value > 0);
JSON_ASSERT(std::isfinite(value));
JSON_ASSERT(value > 0);
// Convert the IEEE representation into a diyfp.
//
@ -463,18 +462,18 @@ inline cached_power get_cached_power_for_binary_exponent(int e)
// k = ceil((kAlpha - e - 1) * 0.30102999566398114)
// for |e| <= 1500, but doesn't require floating-point operations.
// NB: log_10(2) ~= 78913 / 2^18
assert(e >= -1500);
assert(e <= 1500);
JSON_ASSERT(e >= -1500);
JSON_ASSERT(e <= 1500);
const int f = kAlpha - e - 1;
const int k = (f * 78913) / (1 << 18) + static_cast<int>(f > 0);
const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / kCachedPowersDecStep;
assert(index >= 0);
assert(static_cast<std::size_t>(index) < kCachedPowers.size());
JSON_ASSERT(index >= 0);
JSON_ASSERT(static_cast<std::size_t>(index) < kCachedPowers.size());
const cached_power cached = kCachedPowers[static_cast<std::size_t>(index)];
assert(kAlpha <= cached.e + e + 64);
assert(kGamma >= cached.e + e + 64);
JSON_ASSERT(kAlpha <= cached.e + e + 64);
JSON_ASSERT(kGamma >= cached.e + e + 64);
return cached;
}
@ -542,10 +541,10 @@ inline int find_largest_pow10(const std::uint32_t n, std::uint32_t& pow10)
inline void grisu2_round(char* buf, int len, std::uint64_t dist, std::uint64_t delta,
std::uint64_t rest, std::uint64_t ten_k)
{
assert(len >= 1);
assert(dist <= delta);
assert(rest <= delta);
assert(ten_k > 0);
JSON_ASSERT(len >= 1);
JSON_ASSERT(dist <= delta);
JSON_ASSERT(rest <= delta);
JSON_ASSERT(ten_k > 0);
// <--------------------------- delta ---->
// <---- dist --------->
@ -570,7 +569,7 @@ inline void grisu2_round(char* buf, int len, std::uint64_t dist, std::uint64_t d
and delta - rest >= ten_k
and (rest + ten_k < dist or dist - rest > rest + ten_k - dist))
{
assert(buf[len - 1] != '0');
JSON_ASSERT(buf[len - 1] != '0');
buf[len - 1]--;
rest += ten_k;
}
@ -598,8 +597,8 @@ inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
// Grisu2 generates the digits of M+ from left to right and stops as soon as
// V is in [M-,M+].
assert(M_plus.e >= kAlpha);
assert(M_plus.e <= kGamma);
JSON_ASSERT(M_plus.e >= kAlpha);
JSON_ASSERT(M_plus.e <= kGamma);
std::uint64_t delta = diyfp::sub(M_plus, M_minus).f; // (significand of (M+ - M-), implicit exponent is e)
std::uint64_t dist = diyfp::sub(M_plus, w ).f; // (significand of (M+ - w ), implicit exponent is e)
@ -620,7 +619,7 @@ inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
//
// Generate the digits of the integral part p1 = d[n-1]...d[1]d[0]
assert(p1 > 0);
JSON_ASSERT(p1 > 0);
std::uint32_t pow10;
const int k = find_largest_pow10(p1, pow10);
@ -656,7 +655,7 @@ inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
// M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e
// = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e)
//
assert(d <= 9);
JSON_ASSERT(d <= 9);
buffer[length++] = static_cast<char>('0' + d); // buffer := buffer * 10 + d
//
// M+ = buffer * 10^(n-1) + (r + p2 * 2^e)
@ -743,7 +742,7 @@ inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
//
// and stop as soon as 10^-m * r * 2^e <= delta * 2^e
assert(p2 > delta);
JSON_ASSERT(p2 > delta);
int m = 0;
for (;;)
@ -754,7 +753,7 @@ inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
// = buffer * 10^-m + 10^-m * (1/10 * (10 * p2) ) * 2^e
// = buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + (10*p2 mod 2^-e)) * 2^e
//
assert(p2 <= (std::numeric_limits<std::uint64_t>::max)() / 10);
JSON_ASSERT(p2 <= (std::numeric_limits<std::uint64_t>::max)() / 10);
p2 *= 10;
const std::uint64_t d = p2 >> -one.e; // d = (10 * p2) div 2^-e
const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e
@ -763,7 +762,7 @@ inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
// = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e))
// = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e
//
assert(d <= 9);
JSON_ASSERT(d <= 9);
buffer[length++] = static_cast<char>('0' + d); // buffer := buffer * 10 + d
//
// M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e
@ -824,8 +823,8 @@ JSON_HEDLEY_NON_NULL(1)
inline void grisu2(char* buf, int& len, int& decimal_exponent,
diyfp m_minus, diyfp v, diyfp m_plus)
{
assert(m_plus.e == m_minus.e);
assert(m_plus.e == v.e);
JSON_ASSERT(m_plus.e == m_minus.e);
JSON_ASSERT(m_plus.e == v.e);
// --------(-----------------------+-----------------------)-------- (A)
// m- v m+
@ -886,8 +885,8 @@ void grisu2(char* buf, int& len, int& decimal_exponent, FloatType value)
static_assert(diyfp::kPrecision >= std::numeric_limits<FloatType>::digits + 3,
"internal error: not enough precision");
assert(std::isfinite(value));
assert(value > 0);
JSON_ASSERT(std::isfinite(value));
JSON_ASSERT(value > 0);
// If the neighbors (and boundaries) of 'value' are always computed for double-precision
// numbers, all float's can be recovered using strtod (and strtof). However, the resulting
@ -923,8 +922,8 @@ JSON_HEDLEY_NON_NULL(1)
JSON_HEDLEY_RETURNS_NON_NULL
inline char* append_exponent(char* buf, int e)
{
assert(e > -1000);
assert(e < 1000);
JSON_ASSERT(e > -1000);
JSON_ASSERT(e < 1000);
if (e < 0)
{
@ -976,8 +975,8 @@ JSON_HEDLEY_RETURNS_NON_NULL
inline char* format_buffer(char* buf, int len, int decimal_exponent,
int min_exp, int max_exp)
{
assert(min_exp < 0);
assert(max_exp > 0);
JSON_ASSERT(min_exp < 0);
JSON_ASSERT(max_exp > 0);
const int k = len;
const int n = len + decimal_exponent;
@ -1003,7 +1002,7 @@ inline char* format_buffer(char* buf, int len, int decimal_exponent,
// dig.its
// len <= max_digits10 + 1
assert(k > n);
JSON_ASSERT(k > n);
std::memmove(buf + (static_cast<size_t>(n) + 1), buf + n, static_cast<size_t>(k) - static_cast<size_t>(n));
buf[n] = '.';
@ -1061,7 +1060,7 @@ JSON_HEDLEY_RETURNS_NON_NULL
char* to_chars(char* first, const char* last, FloatType value)
{
static_cast<void>(last); // maybe unused - fix warning
assert(std::isfinite(value));
JSON_ASSERT(std::isfinite(value));
// Use signbit(value) instead of (value < 0) since signbit works for -0.
if (std::signbit(value))
@ -1079,7 +1078,7 @@ char* to_chars(char* first, const char* last, FloatType value)
return first;
}
assert(last - first >= std::numeric_limits<FloatType>::max_digits10);
JSON_ASSERT(last - first >= std::numeric_limits<FloatType>::max_digits10);
// Compute v = buffer * 10^decimal_exponent.
// The decimal digits are stored in the buffer, which needs to be interpreted
@ -1089,16 +1088,16 @@ char* to_chars(char* first, const char* last, FloatType value)
int decimal_exponent = 0;
dtoa_impl::grisu2(first, len, decimal_exponent, value);
assert(len <= std::numeric_limits<FloatType>::max_digits10);
JSON_ASSERT(len <= std::numeric_limits<FloatType>::max_digits10);
// Format the buffer like printf("%.*g", prec, value)
constexpr int kMinExp = -4;
// Use digits10 here to increase compatibility with version 2.
constexpr int kMaxExp = std::numeric_limits<FloatType>::digits10;
assert(last - first >= kMaxExp + 2);
assert(last - first >= 2 + (-kMinExp - 1) + std::numeric_limits<FloatType>::max_digits10);
assert(last - first >= std::numeric_limits<FloatType>::max_digits10 + 6);
JSON_ASSERT(last - first >= kMaxExp + 2);
JSON_ASSERT(last - first >= 2 + (-kMinExp - 1) + std::numeric_limits<FloatType>::max_digits10);
JSON_ASSERT(last - first >= std::numeric_limits<FloatType>::max_digits10 + 6);
return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, kMaxExp);
}

175
include/nlohmann/detail/input/binary_reader.hpp
View File

@ -2,7 +2,6 @@
#include <algorithm> // generate_n
#include <array> // array
#include <cassert> // assert
#include <cmath> // ldexp
#include <cstddef> // size_t
#include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
@ -109,7 +108,7 @@ class binary_reader
break;
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
// strict mode: next byte must be EOF
@ -145,7 +144,7 @@ class binary_reader
*/
bool parse_bson_internal()
{
std::int32_t document_size;
std::int32_t document_size{};
get_number<std::int32_t, true>(input_format_t::bson, document_size);
if (JSON_HEDLEY_UNLIKELY(not sax->start_object(std::size_t(-1))))
@ -184,8 +183,6 @@ class binary_reader
}
*out++ = static_cast<typename string_t::value_type>(current);
}
return true;
}
/*!
@ -230,7 +227,7 @@ class binary_reader
}
// All BSON binary values have a subtype
std::uint8_t subtype;
std::uint8_t subtype{};
get_number<std::uint8_t>(input_format_t::bson, subtype);
result.set_subtype(subtype);
@ -254,13 +251,13 @@ class binary_reader
{
case 0x01: // double
{
double number;
double number{};
return get_number<double, true>(input_format_t::bson, number) and sax->number_float(static_cast<number_float_t>(number), "");
}
case 0x02: // string
{
std::int32_t len;
std::int32_t len{};
string_t value;
return get_number<std::int32_t, true>(input_format_t::bson, len) and get_bson_string(len, value) and sax->string(value);
}
@ -277,7 +274,7 @@ class binary_reader
case 0x05: // binary
{
std::int32_t len;
std::int32_t len{};
binary_t value;
return get_number<std::int32_t, true>(input_format_t::bson, len) and get_bson_binary(len, value) and sax->binary(value);
}
@ -294,13 +291,13 @@ class binary_reader
case 0x10: // int32
{
std::int32_t value;
std::int32_t value{};
return get_number<std::int32_t, true>(input_format_t::bson, value) and sax->number_integer(value);
}
case 0x12: // int64
{
std::int64_t value;
std::int64_t value{};
return get_number<std::int64_t, true>(input_format_t::bson, value) and sax->number_integer(value);
}
@ -365,7 +362,7 @@ class binary_reader
*/
bool parse_bson_array()
{
std::int32_t document_size;
std::int32_t document_size{};
get_number<std::int32_t, true>(input_format_t::bson, document_size);
if (JSON_HEDLEY_UNLIKELY(not sax->start_array(std::size_t(-1))))
@ -429,25 +426,25 @@ class binary_reader
case 0x18: // Unsigned integer (one-byte uint8_t follows)
{
std::uint8_t number;
std::uint8_t number{};
return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
}
case 0x19: // Unsigned integer (two-byte uint16_t follows)
{
std::uint16_t number;
std::uint16_t number{};
return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
}
case 0x1A: // Unsigned integer (four-byte uint32_t follows)
{
std::uint32_t number;
std::uint32_t number{};
return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
}
case 0x1B: // Unsigned integer (eight-byte uint64_t follows)
{
std::uint64_t number;
std::uint64_t number{};
return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
}
@ -480,25 +477,25 @@ class binary_reader
case 0x38: // Negative integer (one-byte uint8_t follows)
{
std::uint8_t number;
std::uint8_t number{};
return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1) - number);
}
case 0x39: // Negative integer -1-n (two-byte uint16_t follows)
{
std::uint16_t number;
std::uint16_t number{};
return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1) - number);
}
case 0x3A: // Negative integer -1-n (four-byte uint32_t follows)
{
std::uint32_t number;
std::uint32_t number{};
return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1) - number);
}
case 0x3B: // Negative integer -1-n (eight-byte uint64_t follows)
{
std::uint64_t number;
std::uint64_t number{};
return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1)
- static_cast<number_integer_t>(number));
}
@ -602,25 +599,25 @@ class binary_reader
case 0x98: // array (one-byte uint8_t for n follows)
{
std::uint8_t len;
std::uint8_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
}
case 0x99: // array (two-byte uint16_t for n follow)
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
}
case 0x9A: // array (four-byte uint32_t for n follow)
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
}
case 0x9B: // array (eight-byte uint64_t for n follow)
{
std::uint64_t len;
std::uint64_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
}
@ -656,25 +653,25 @@ class binary_reader
case 0xB8: // map (one-byte uint8_t for n follows)
{
std::uint8_t len;
std::uint8_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
}
case 0xB9: // map (two-byte uint16_t for n follow)
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
}
case 0xBA: // map (four-byte uint32_t for n follow)
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
}
case 0xBB: // map (eight-byte uint64_t for n follow)
{
std::uint64_t len;
std::uint64_t len{};
return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
}
@ -719,8 +716,8 @@ class binary_reader
{
const int exp = (half >> 10u) & 0x1Fu;
const unsigned int mant = half & 0x3FFu;
assert(0 <= exp and exp <= 32);
assert(mant <= 1024);
JSON_ASSERT(0 <= exp and exp <= 32);
JSON_ASSERT(mant <= 1024);
switch (exp)
{
case 0:
@ -740,13 +737,13 @@ class binary_reader
case 0xFA: // Single-Precision Float (four-byte IEEE 754)
{
float number;
float number{};
return get_number(input_format_t::cbor, number) and sax->number_float(static_cast<number_float_t>(number), "");
}
case 0xFB: // Double-Precision Float (eight-byte IEEE 754)
{
double number;
double number{};
return get_number(input_format_t::cbor, number) and sax->number_float(static_cast<number_float_t>(number), "");
}
@ -809,25 +806,25 @@ class binary_reader
case 0x78: // UTF-8 string (one-byte uint8_t for n follows)
{
std::uint8_t len;
std::uint8_t len{};
return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
}
case 0x79: // UTF-8 string (two-byte uint16_t for n follow)
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
}
case 0x7A: // UTF-8 string (four-byte uint32_t for n follow)
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
}
case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow)
{
std::uint64_t len;
std::uint64_t len{};
return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
}
@ -904,28 +901,28 @@ class binary_reader
case 0x58: // Binary data (one-byte uint8_t for n follows)
{
std::uint8_t len;
std::uint8_t len{};
return get_number(input_format_t::cbor, len) and
get_binary(input_format_t::cbor, len, result);
}
case 0x59: // Binary data (two-byte uint16_t for n follow)
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::cbor, len) and
get_binary(input_format_t::cbor, len, result);
}
case 0x5A: // Binary data (four-byte uint32_t for n follow)
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::cbor, len) and
get_binary(input_format_t::cbor, len, result);
}
case 0x5B: // Binary data (eight-byte uint64_t for n follow)
{
std::uint64_t len;
std::uint64_t len{};
return get_number(input_format_t::cbor, len) and
get_binary(input_format_t::cbor, len, result);
}
@ -1290,85 +1287,85 @@ class binary_reader
case 0xCA: // float 32
{
float number;
float number{};
return get_number(input_format_t::msgpack, number) and sax->number_float(static_cast<number_float_t>(number), "");
}
case 0xCB: // float 64
{
double number;
double number{};
return get_number(input_format_t::msgpack, number) and sax->number_float(static_cast<number_float_t>(number), "");
}
case 0xCC: // uint 8
{
std::uint8_t number;
std::uint8_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
}
case 0xCD: // uint 16
{
std::uint16_t number;
std::uint16_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
}
case 0xCE: // uint 32
{
std::uint32_t number;
std::uint32_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
}
case 0xCF: // uint 64
{
std::uint64_t number;
std::uint64_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
}
case 0xD0: // int 8
{
std::int8_t number;
std::int8_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
}
case 0xD1: // int 16
{
std::int16_t number;
std::int16_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
}
case 0xD2: // int 32
{
std::int32_t number;
std::int32_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
}
case 0xD3: // int 64
{
std::int64_t number;
std::int64_t number{};
return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
}
case 0xDC: // array 16
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::msgpack, len) and get_msgpack_array(static_cast<std::size_t>(len));
}
case 0xDD: // array 32
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::msgpack, len) and get_msgpack_array(static_cast<std::size_t>(len));
}
case 0xDE: // map 16
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::msgpack, len) and get_msgpack_object(static_cast<std::size_t>(len));
}
case 0xDF: // map 32
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::msgpack, len) and get_msgpack_object(static_cast<std::size_t>(len));
}
@ -1473,19 +1470,19 @@ class binary_reader
case 0xD9: // str 8
{
std::uint8_t len;
std::uint8_t len{};
return get_number(input_format_t::msgpack, len) and get_string(input_format_t::msgpack, len, result);
}
case 0xDA: // str 16
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::msgpack, len) and get_string(input_format_t::msgpack, len, result);
}
case 0xDB: // str 32
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::msgpack, len) and get_string(input_format_t::msgpack, len, result);
}
@ -1520,29 +1517,29 @@ class binary_reader
{
case 0xC4: // bin 8
{
std::uint8_t len;
std::uint8_t len{};
return get_number(input_format_t::msgpack, len) and
get_binary(input_format_t::msgpack, len, result);
}
case 0xC5: // bin 16
{
std::uint16_t len;
std::uint16_t len{};
return get_number(input_format_t::msgpack, len) and
get_binary(input_format_t::msgpack, len, result);
}
case 0xC6: // bin 32
{
std::uint32_t len;
std::uint32_t len{};
return get_number(input_format_t::msgpack, len) and
get_binary(input_format_t::msgpack, len, result);
}
case 0xC7: // ext 8
{
std::uint8_t len;
std::int8_t subtype;
std::uint8_t len{};
std::int8_t subtype{};
return get_number(input_format_t::msgpack, len) and
get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, len, result) and
@ -1551,8 +1548,8 @@ class binary_reader
case 0xC8: // ext 16
{
std::uint16_t len;
std::int8_t subtype;
std::uint16_t len{};
std::int8_t subtype{};
return get_number(input_format_t::msgpack, len) and
get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, len, result) and
@ -1561,8 +1558,8 @@ class binary_reader
case 0xC9: // ext 32
{
std::uint32_t len;
std::int8_t subtype;
std::uint32_t len{};
std::int8_t subtype{};
return get_number(input_format_t::msgpack, len) and
get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, len, result) and
@ -1571,7 +1568,7 @@ class binary_reader
case 0xD4: // fixext 1
{
std::int8_t subtype;
std::int8_t subtype{};
return get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, 1, result) and
assign_and_return_true(subtype);
@ -1579,7 +1576,7 @@ class binary_reader
case 0xD5: // fixext 2
{
std::int8_t subtype;
std::int8_t subtype{};
return get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, 2, result) and
assign_and_return_true(subtype);
@ -1587,7 +1584,7 @@ class binary_reader
case 0xD6: // fixext 4
{
std::int8_t subtype;
std::int8_t subtype{};
return get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, 4, result) and
assign_and_return_true(subtype);
@ -1595,7 +1592,7 @@ class binary_reader
case 0xD7: // fixext 8
{
std::int8_t subtype;
std::int8_t subtype{};
return get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, 8, result) and
assign_and_return_true(subtype);
@ -1603,7 +1600,7 @@ class binary_reader
case 0xD8: // fixext 16
{
std::int8_t subtype;
std::int8_t subtype{};
return get_number(input_format_t::msgpack, subtype) and
get_binary(input_format_t::msgpack, 16, result) and
assign_and_return_true(subtype);
@ -1712,31 +1709,31 @@ class binary_reader
{
case 'U':
{
std::uint8_t len;
std::uint8_t len{};
return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
}
case 'i':
{
std::int8_t len;
std::int8_t len{};
return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
}
case 'I':
{
std::int16_t len;
std::int16_t len{};
return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
}
case 'l':
{
std::int32_t len;
std::int32_t len{};
return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
}
case 'L':
{
std::int64_t len;
std::int64_t len{};
return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
}
@ -1756,7 +1753,7 @@ class binary_reader
{
case 'U':
{
std::uint8_t number;
std::uint8_t number{};
if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
{
return false;
@ -1767,7 +1764,7 @@ class binary_reader
case 'i':
{
std::int8_t number;
std::int8_t number{};
if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
{
return false;
@ -1778,7 +1775,7 @@ class binary_reader
case 'I':
{
std::int16_t number;
std::int16_t number{};
if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
{
return false;
@ -1789,7 +1786,7 @@ class binary_reader
case 'l':
{
std::int32_t number;
std::int32_t number{};
if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
{
return false;
@ -1800,7 +1797,7 @@ class binary_reader
case 'L':
{
std::int64_t number;
std::int64_t number{};
if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
{
return false;
@ -1885,43 +1882,43 @@ class binary_reader
case 'U':
{
std::uint8_t number;
std::uint8_t number{};
return get_number(input_format_t::ubjson, number) and sax->number_unsigned(number);
}
case 'i':
{
std::int8_t number;
std::int8_t number{};
return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
}
case 'I':
{
std::int16_t number;
std::int16_t number{};
return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
}
case 'l':
{
std::int32_t number;
std::int32_t number{};
return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
}
case 'L':
{
std::int64_t number;
std::int64_t number{};
return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
}
case 'd':
{
float number;
float number{};
return get_number(input_format_t::ubjson, number) and sax->number_float(static_cast<number_float_t>(number), "");
}
case 'D':
{
double number;
double number{};
return get_number(input_format_t::ubjson, number) and sax->number_float(static_cast<number_float_t>(number), "");
}
@ -2297,7 +2294,7 @@ class binary_reader
break;
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
return error_msg + " " + context + ": " + detail;

13
include/nlohmann/detail/input/input_adapters.hpp
View File

@ -1,7 +1,6 @@
#pragma once
#include <array> // array
#include <cassert> // assert
#include <cstddef> // size_t
#include <cstdio> //FILE *
#include <cstring> // strlen
@ -76,7 +75,7 @@ class input_stream_adapter
{
// clear stream flags; we use underlying streambuf I/O, do not
// maintain ifstream flags, except eof
if (is)
if (is != nullptr)
{
is->clear(is->rdstate() & std::ios::eofbit);
}
@ -297,13 +296,13 @@ class wide_string_input_adapter
{
fill_buffer<sizeof(WideCharType)>();
assert(utf8_bytes_filled > 0);
assert(utf8_bytes_index == 0);
JSON_ASSERT(utf8_bytes_filled > 0);
JSON_ASSERT(utf8_bytes_index == 0);
}
// use buffer
assert(utf8_bytes_filled > 0);
assert(utf8_bytes_index < utf8_bytes_filled);
JSON_ASSERT(utf8_bytes_filled > 0);
JSON_ASSERT(utf8_bytes_index < utf8_bytes_filled);
return utf8_bytes[utf8_bytes_index++];
}
@ -411,7 +410,7 @@ template < typename CharT,
contiguous_bytes_input_adapter input_adapter(CharT b)
{
auto length = std::strlen(reinterpret_cast<const char*>(b));
auto ptr = reinterpret_cast<const char*>(b);
const auto* ptr = reinterpret_cast<const char*>(b);
return input_adapter(ptr, ptr + length);
}

49
include/nlohmann/detail/input/json_sax.hpp
View File

@ -1,6 +1,5 @@
#pragma once
#include <cassert> // assert
#include <cstddef>
#include <string> // string
#include <utility> // move
@ -269,18 +268,18 @@ class json_sax_dom_parser
switch ((ex.id / 100) % 100)
{
case 1:
JSON_THROW(*static_cast<const detail::parse_error*>(&ex));
JSON_THROW(*dynamic_cast<const detail::parse_error*>(&ex));
case 4:
JSON_THROW(*static_cast<const detail::out_of_range*>(&ex));
JSON_THROW(*dynamic_cast<const detail::out_of_range*>(&ex));
// LCOV_EXCL_START
case 2:
JSON_THROW(*static_cast<const detail::invalid_iterator*>(&ex));
JSON_THROW(*dynamic_cast<const detail::invalid_iterator*>(&ex));
case 3:
JSON_THROW(*static_cast<const detail::type_error*>(&ex));
JSON_THROW(*dynamic_cast<const detail::type_error*>(&ex));
case 5:
JSON_THROW(*static_cast<const detail::other_error*>(&ex));
JSON_THROW(*dynamic_cast<const detail::other_error*>(&ex));
default:
assert(false);
JSON_ASSERT(false);
// LCOV_EXCL_STOP
}
}
@ -309,7 +308,7 @@ class json_sax_dom_parser
return &root;
}
assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
JSON_ASSERT(ref_stack.back()->is_array() or ref_stack.back()->is_object());
if (ref_stack.back()->is_array())
{
@ -317,8 +316,8 @@ class json_sax_dom_parser
return &(ref_stack.back()->m_value.array->back());
}
assert(ref_stack.back()->is_object());
assert(object_element);
JSON_ASSERT(ref_stack.back()->is_object());
JSON_ASSERT(object_element);
*object_element = BasicJsonType(std::forward<Value>(v));
return object_element;
}
@ -447,8 +446,8 @@ class json_sax_dom_callback_parser
*ref_stack.back() = discarded;
}
assert(not ref_stack.empty());
assert(not keep_stack.empty());
JSON_ASSERT(not ref_stack.empty());
JSON_ASSERT(not keep_stack.empty());
ref_stack.pop_back();
keep_stack.pop_back();
@ -499,8 +498,8 @@ class json_sax_dom_callback_parser
}
}
assert(not ref_stack.empty());
assert(not keep_stack.empty());
JSON_ASSERT(not ref_stack.empty());
JSON_ASSERT(not keep_stack.empty());
ref_stack.pop_back();
keep_stack.pop_back();
@ -523,18 +522,18 @@ class json_sax_dom_callback_parser
switch ((ex.id / 100) % 100)
{
case 1:
JSON_THROW(*static_cast<const detail::parse_error*>(&ex));
JSON_THROW(*dynamic_cast<const detail::parse_error*>(&ex));
case 4:
JSON_THROW(*static_cast<const detail::out_of_range*>(&ex));
JSON_THROW(*dynamic_cast<const detail::out_of_range*>(&ex));
// LCOV_EXCL_START
case 2:
JSON_THROW(*static_cast<const detail::invalid_iterator*>(&ex));
JSON_THROW(*dynamic_cast<const detail::invalid_iterator*>(&ex));
case 3:
JSON_THROW(*static_cast<const detail::type_error*>(&ex));
JSON_THROW(*dynamic_cast<const detail::type_error*>(&ex));
case 5:
JSON_THROW(*static_cast<const detail::other_error*>(&ex));
JSON_THROW(*dynamic_cast<const detail::other_error*>(&ex));
default:
assert(false);
JSON_ASSERT(false);
// LCOV_EXCL_STOP
}
}
@ -565,7 +564,7 @@ class json_sax_dom_callback_parser
template<typename Value>
std::pair<bool, BasicJsonType*> handle_value(Value&& v, const bool skip_callback = false)
{
assert(not keep_stack.empty());
JSON_ASSERT(not keep_stack.empty());
// do not handle this value if we know it would be added to a discarded
// container
@ -600,7 +599,7 @@ class json_sax_dom_callback_parser
}
// we now only expect arrays and objects
assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
JSON_ASSERT(ref_stack.back()->is_array() or ref_stack.back()->is_object());
// array
if (ref_stack.back()->is_array())
@ -610,9 +609,9 @@ class json_sax_dom_callback_parser
}
// object
assert(ref_stack.back()->is_object());
JSON_ASSERT(ref_stack.back()->is_object());
// check if we should store an element for the current key
assert(not key_keep_stack.empty());
JSON_ASSERT(not key_keep_stack.empty());
const bool store_element = key_keep_stack.back();
key_keep_stack.pop_back();
@ -621,7 +620,7 @@ class json_sax_dom_callback_parser
return {false, nullptr};
}
assert(object_element);
JSON_ASSERT(object_element);
*object_element = std::move(value);
return {true, object_element};
}

130
include/nlohmann/detail/input/lexer.hpp
View File

@ -112,8 +112,11 @@ class lexer : public lexer_base<BasicJsonType>
public:
using token_type = typename lexer_base<BasicJsonType>::token_type;
explicit lexer(InputAdapterType&& adapter)
: ia(std::move(adapter)), decimal_point_char(static_cast<char_int_type>(get_decimal_point())) {}
explicit lexer(InputAdapterType&& adapter, bool ignore_comments_ = false)
: ia(std::move(adapter))
, ignore_comments(ignore_comments_)
, decimal_point_char(static_cast<char_int_type>(get_decimal_point()))
{}
// delete because of pointer members
lexer(const lexer&) = delete;
@ -131,8 +134,8 @@ class lexer : public lexer_base<BasicJsonType>
JSON_HEDLEY_PURE
static char get_decimal_point() noexcept
{
const auto loc = localeconv();
assert(loc != nullptr);
const auto* loc = localeconv();
JSON_ASSERT(loc != nullptr);
return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point);
}
@ -158,7 +161,7 @@ class lexer : public lexer_base<BasicJsonType>
int get_codepoint()
{
// this function only makes sense after reading `\u`
assert(current == 'u');
JSON_ASSERT(current == 'u');
int codepoint = 0;
const auto factors = { 12u, 8u, 4u, 0u };
@ -184,7 +187,7 @@ class lexer : public lexer_base<BasicJsonType>
}
}
assert(0x0000 <= codepoint and codepoint <= 0xFFFF);
JSON_ASSERT(0x0000 <= codepoint and codepoint <= 0xFFFF);
return codepoint;
}
@ -205,7 +208,7 @@ class lexer : public lexer_base<BasicJsonType>
*/
bool next_byte_in_range(std::initializer_list<char_int_type> ranges)
{
assert(ranges.size() == 2 or ranges.size() == 4 or ranges.size() == 6);
JSON_ASSERT(ranges.size() == 2 or ranges.size() == 4 or ranges.size() == 6);
add(current);
for (auto range = ranges.begin(); range != ranges.end(); ++range)
@ -246,7 +249,7 @@ class lexer : public lexer_base<BasicJsonType>
reset();
// we entered the function by reading an open quote
assert(current == '\"');
JSON_ASSERT(current == '\"');
while (true)
{
@ -366,7 +369,7 @@ class lexer : public lexer_base<BasicJsonType>
}
// result of the above calculation yields a proper codepoint
assert(0x00 <= codepoint and codepoint <= 0x10FFFF);
JSON_ASSERT(0x00 <= codepoint and codepoint <= 0x10FFFF);
// translate codepoint into bytes
if (codepoint < 0x80)
@ -826,6 +829,77 @@ class lexer : public lexer_base<BasicJsonType>
}
}
/*!
* @brief scan a comment
* @return whether comment could be scanned successfully
*/
bool scan_comment()
{
switch (get())
{
// single-line comments skip input until a newline or EOF is read
case '/':
{
while (true)
{
switch (get())
{
case '\n':
case '\r':
case std::char_traits<char_type>::eof():
case '\0':
return true;
default:
break;
}
}
}
// multi-line comments skip input until */ is read
case '*':
{
while (true)
{
switch (get())
{
case std::char_traits<char_type>::eof():
case '\0':
{
error_message = "invalid comment; missing closing '*/'";
return false;
}
case '*':
{
switch (get())
{
case '/':
return true;
default:
{
unget();
break;
}
}
}
default:
break;
}
}
}
// unexpected character after reading '/'
default:
{
error_message = "invalid comment; expecting '/' or '*' after '/'";
return false;
}
}
}
JSON_HEDLEY_NON_NULL(2)
static void strtof(float& f, const char* str, char** endptr) noexcept
{
@ -924,7 +998,7 @@ class lexer : public lexer_base<BasicJsonType>
// all other characters are rejected outside scan_number()
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
scan_number_minus:
@ -1171,7 +1245,7 @@ scan_number_done:
const auto x = std::strtoull(token_buffer.data(), &endptr, 10);
// we checked the number format before
assert(endptr == token_buffer.data() + token_buffer.size());
JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size());
if (errno == 0)
{
@ -1187,7 +1261,7 @@ scan_number_done:
const auto x = std::strtoll(token_buffer.data(), &endptr, 10);
// we checked the number format before
assert(endptr == token_buffer.data() + token_buffer.size());
JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size());
if (errno == 0)
{
@ -1204,7 +1278,7 @@ scan_number_done:
strtof(value_float, token_buffer.data(), &endptr);
// we checked the number format before
assert(endptr == token_buffer.data() + token_buffer.size());
JSON_ASSERT(endptr == token_buffer.data() + token_buffer.size());
return token_type::value_float;
}
@ -1218,7 +1292,7 @@ scan_number_done:
token_type scan_literal(const char_type* literal_text, const std::size_t length,
token_type return_type)
{
assert(std::char_traits<char_type>::to_char_type(current) == literal_text[0]);
JSON_ASSERT(std::char_traits<char_type>::to_char_type(current) == literal_text[0]);
for (std::size_t i = 1; i < length; ++i)
{
if (JSON_HEDLEY_UNLIKELY(std::char_traits<char_type>::to_char_type(get()) != literal_text[i]))
@ -1310,7 +1384,7 @@ scan_number_done:
if (JSON_HEDLEY_LIKELY(current != std::char_traits<char_type>::eof()))
{
assert(not token_string.empty());
JSON_ASSERT(not token_string.empty());
token_string.pop_back();
}
}
@ -1415,6 +1489,15 @@ scan_number_done:
return true;
}
void skip_whitespace()
{
do
{
get();
}
while (current == ' ' or current == '\t' or current == '\n' or current == '\r');
}
token_type scan()
{
// initially, skip the BOM
@ -1425,11 +1508,19 @@ scan_number_done:
}
// read next character and ignore whitespace
do
skip_whitespace();
// ignore comments
if (ignore_comments and current == '/')
{
get();
if (not scan_comment())
{
return token_type::parse_error;
}
// skip following whitespace
skip_whitespace();
}
while (current == ' ' or current == '\t' or current == '\n' or current == '\r');
switch (current)
{
@ -1499,6 +1590,9 @@ scan_number_done:
/// input adapter
InputAdapterType ia;
/// whether comments should be ignored (true) or signaled as errors (false)
const bool ignore_comments = false;
/// the current character
char_int_type current = std::char_traits<char_type>::eof();

12
include/nlohmann/detail/input/parser.hpp
View File

@ -1,6 +1,5 @@
#pragma once
#include <cassert> // assert
#include <cmath> // isfinite
#include <cstdint> // uint8_t
#include <functional> // function
@ -63,8 +62,11 @@ class parser
/// a parser reading from an input adapter
explicit parser(InputAdapterType&& adapter,
const parser_callback_t<BasicJsonType> cb = nullptr,
const bool allow_exceptions_ = true)
: callback(cb), m_lexer(std::move(adapter)), allow_exceptions(allow_exceptions_)
const bool allow_exceptions_ = true,
const bool skip_comments = false)
: callback(cb)
, m_lexer(std::move(adapter), skip_comments)
, allow_exceptions(allow_exceptions_)
{
// read first token
get_token();
@ -380,7 +382,7 @@ class parser
// 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());
JSON_ASSERT(not states.empty());
states.pop_back();
skip_to_state_evaluation = true;
continue;
@ -436,7 +438,7 @@ class parser
// 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());
JSON_ASSERT(not states.empty());
states.pop_back();
skip_to_state_evaluation = true;
continue;

2
include/nlohmann/detail/iterators/internal_iterator.hpp
View File

@ -18,8 +18,6 @@ template<typename BasicJsonType> struct internal_iterator
typename BasicJsonType::object_t::iterator object_iterator {};
/// iterator for JSON arrays
typename BasicJsonType::array_t::iterator array_iterator {};
/// iterator for JSON binary arrays
typename BasicJsonType::binary_t::container_type::iterator binary_iterator {};
/// generic iterator for all other types
primitive_iterator_t primitive_iterator {};
};

34
include/nlohmann/detail/iterators/iter_impl.hpp
View File

@ -85,7 +85,7 @@ class iter_impl
*/
explicit iter_impl(pointer object) noexcept : m_object(object)
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -171,7 +171,7 @@ class iter_impl
*/
void set_begin() noexcept
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -208,7 +208,7 @@ class iter_impl
*/
void set_end() noexcept
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -239,19 +239,19 @@ class iter_impl
*/
reference operator*() const
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
case value_t::object:
{
assert(m_it.object_iterator != m_object->m_value.object->end());
JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end());
return m_it.object_iterator->second;
}
case value_t::array:
{
assert(m_it.array_iterator != m_object->m_value.array->end());
JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end());
return *m_it.array_iterator;
}
@ -276,19 +276,19 @@ class iter_impl
*/
pointer operator->() const
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
case value_t::object:
{
assert(m_it.object_iterator != m_object->m_value.object->end());
JSON_ASSERT(m_it.object_iterator != m_object->m_value.object->end());
return &(m_it.object_iterator->second);
}
case value_t::array:
{
assert(m_it.array_iterator != m_object->m_value.array->end());
JSON_ASSERT(m_it.array_iterator != m_object->m_value.array->end());
return &*m_it.array_iterator;
}
@ -321,7 +321,7 @@ class iter_impl
*/
iter_impl& operator++()
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -364,7 +364,7 @@ class iter_impl
*/
iter_impl& operator--()
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -402,7 +402,7 @@ class iter_impl
JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers"));
}
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -438,7 +438,7 @@ class iter_impl
JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers"));
}
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -486,7 +486,7 @@ class iter_impl
*/
iter_impl& operator+=(difference_type i)
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -557,7 +557,7 @@ class iter_impl
*/
difference_type operator-(const iter_impl& other) const
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -578,7 +578,7 @@ class iter_impl
*/
reference operator[](difference_type n) const
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
switch (m_object->m_type)
{
@ -609,7 +609,7 @@ class iter_impl
*/
const typename object_t::key_type& key() const
{
assert(m_object != nullptr);
JSON_ASSERT(m_object != nullptr);
if (JSON_HEDLEY_LIKELY(m_object->is_object()))
{

6
include/nlohmann/detail/iterators/iteration_proxy.hpp
View File

@ -15,7 +15,9 @@ namespace detail
template<typename string_type>
void int_to_string( string_type& target, std::size_t value )
{
target = std::to_string(value);
// For ADL
using std::to_string;
target = to_string(value);
}
template <typename IteratorType> class iteration_proxy_value
{
@ -72,7 +74,7 @@ template <typename IteratorType> class iteration_proxy_value
/// return key of the iterator
const string_type& key() const
{
assert(anchor.m_object != nullptr);
JSON_ASSERT(anchor.m_object != nullptr);
switch (anchor.m_object->type())
{

46
include/nlohmann/detail/json_pointer.hpp
View File

@ -1,8 +1,8 @@
#pragma once
#include <algorithm> // all_of
#include <cassert> // assert
#include <cctype> // isdigit
#include <limits> // max
#include <numeric> // accumulate
#include <string> // string
#include <utility> // move
@ -325,10 +325,15 @@ class json_pointer
@return integer representation of @a s
@throw parse_error.106 if an array index begins with '0'
@throw parse_error.109 if an array index begins not with a digit
@throw out_of_range.404 if string @a s could not be converted to an integer
@throw out_of_range.410 if an array index exceeds size_type
*/
static int array_index(const std::string& s)
static typename BasicJsonType::size_type array_index(const std::string& s)
{
using size_type = typename BasicJsonType::size_type;
// error condition (cf. RFC 6901, Sect. 4)
if (JSON_HEDLEY_UNLIKELY(s.size() > 1 and s[0] == '0'))
{
@ -344,10 +349,10 @@ class json_pointer
}
std::size_t processed_chars = 0;
int res = 0;
unsigned long long res = 0;
JSON_TRY
{
res = std::stoi(s, &processed_chars);
res = std::stoull(s, &processed_chars);
}
JSON_CATCH(std::out_of_range&)
{
@ -360,7 +365,14 @@ class json_pointer
JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'"));
}
return res;
// only triggered on special platforms (like 32bit), see also
// https://github.com/nlohmann/json/pull/2203
if (res >= static_cast<unsigned long long>((std::numeric_limits<size_type>::max)()))
{
JSON_THROW(detail::out_of_range::create(410, "array index " + s + " exceeds size_type")); // LCOV_EXCL_LINE
}
return static_cast<size_type>(res);
}
json_pointer top() const
@ -385,7 +397,6 @@ class json_pointer
*/
BasicJsonType& get_and_create(BasicJsonType& j) const
{
using size_type = typename BasicJsonType::size_type;
auto result = &j;
// in case no reference tokens exist, return a reference to the JSON value
@ -419,7 +430,7 @@ class json_pointer
case detail::value_t::array:
{
// create an entry in the array
result = &result->operator[](static_cast<size_type>(array_index(reference_token)));
result = &result->operator[](array_index(reference_token));
break;
}
@ -458,7 +469,6 @@ class json_pointer
*/
BasicJsonType& get_unchecked(BasicJsonType* ptr) const
{
using size_type = typename BasicJsonType::size_type;
for (const auto& reference_token : reference_tokens)
{
// convert null values to arrays or objects before continuing
@ -497,8 +507,7 @@ class json_pointer
else
{
// convert array index to number; unchecked access
ptr = &ptr->operator[](
static_cast<size_type>(array_index(reference_token)));
ptr = &ptr->operator[](array_index(reference_token));
}
break;
}
@ -519,7 +528,6 @@ class json_pointer
*/
BasicJsonType& get_checked(BasicJsonType* ptr) const
{
using size_type = typename BasicJsonType::size_type;
for (const auto& reference_token : reference_tokens)
{
switch (ptr->type())
@ -542,7 +550,7 @@ class json_pointer
}
// note: at performs range check
ptr = &ptr->at(static_cast<size_type>(array_index(reference_token)));
ptr = &ptr->at(array_index(reference_token));
break;
}
@ -569,7 +577,6 @@ class json_pointer
*/
const BasicJsonType& get_unchecked(const BasicJsonType* ptr) const
{
using size_type = typename BasicJsonType::size_type;
for (const auto& reference_token : reference_tokens)
{
switch (ptr->type())
@ -592,8 +599,7 @@ class json_pointer
}
// use unchecked array access
ptr = &ptr->operator[](
static_cast<size_type>(array_index(reference_token)));
ptr = &ptr->operator[](array_index(reference_token));
break;
}
@ -613,7 +619,6 @@ class json_pointer
*/
const BasicJsonType& get_checked(const BasicJsonType* ptr) const
{
using size_type = typename BasicJsonType::size_type;
for (const auto& reference_token : reference_tokens)
{
switch (ptr->type())
@ -636,7 +641,7 @@ class json_pointer
}
// note: at performs range check
ptr = &ptr->at(static_cast<size_type>(array_index(reference_token)));
ptr = &ptr->at(array_index(reference_token));
break;
}
@ -654,7 +659,6 @@ class json_pointer
*/
bool contains(const BasicJsonType* ptr) const
{
using size_type = typename BasicJsonType::size_type;
for (const auto& reference_token : reference_tokens)
{
switch (ptr->type())
@ -700,7 +704,7 @@ class json_pointer
}
}
const auto idx = static_cast<size_type>(array_index(reference_token));
const auto idx = array_index(reference_token);
if (idx >= ptr->size())
{
// index out of range
@ -776,7 +780,7 @@ class json_pointer
pos != std::string::npos;
pos = reference_token.find_first_of('~', pos + 1))
{
assert(reference_token[pos] == '~');
JSON_ASSERT(reference_token[pos] == '~');
// ~ must be followed by 0 or 1
if (JSON_HEDLEY_UNLIKELY(pos == reference_token.size() - 1 or
@ -811,7 +815,7 @@ class json_pointer
static void replace_substring(std::string& s, const std::string& f,
const std::string& t)
{
assert(not f.empty());
JSON_ASSERT(not f.empty());
for (auto pos = s.find(f); // find first occurrence of f
pos != std::string::npos; // make sure f was found
s.replace(pos, f.size(), t), // replace with t, and

19
include/nlohmann/detail/json_ref.hpp
View File

@ -16,23 +16,30 @@ class json_ref
using value_type = BasicJsonType;
json_ref(value_type&& value)
: owned_value(std::move(value)), value_ref(&owned_value), is_rvalue(true)
: owned_value(std::move(value))
, value_ref(&owned_value)
, is_rvalue(true)
{}
json_ref(const value_type& value)
: value_ref(const_cast<value_type*>(&value)), is_rvalue(false)
: value_ref(const_cast<value_type*>(&value))
, is_rvalue(false)
{}
json_ref(std::initializer_list<json_ref> init)
: owned_value(init), value_ref(&owned_value), is_rvalue(true)
: owned_value(init)
, value_ref(&owned_value)
, is_rvalue(true)
{}
template <
class... Args,
enable_if_t<std::is_constructible<value_type, Args...>::value, int> = 0 >
json_ref(Args && ... args)
: owned_value(std::forward<Args>(args)...), value_ref(&owned_value),
is_rvalue(true) {}
: owned_value(std::forward<Args>(args)...)
, value_ref(&owned_value)
, is_rvalue(true)
{}
// class should be movable only
json_ref(json_ref&&) = default;
@ -63,7 +70,7 @@ class json_ref
private:
mutable value_type owned_value = nullptr;
value_type* value_ref = nullptr;
const bool is_rvalue;
const bool is_rvalue = true;
};
} // namespace detail
} // namespace nlohmann

53
include/nlohmann/detail/macro_scope.hpp
View File

@ -20,7 +20,11 @@
#endif
// C++ language standard detection
#if (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
#if (defined(__cplusplus) && __cplusplus >= 202002L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 202002L)
#define JSON_HAS_CPP_20
#define JSON_HAS_CPP_17
#define JSON_HAS_CPP_14
#elif (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
#define JSON_HAS_CPP_17
#define JSON_HAS_CPP_14
#elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1)
@ -73,6 +77,12 @@
#define JSON_INTERNAL_CATCH JSON_INTERNAL_CATCH_USER
#endif
// allow to override assert
#if !defined(JSON_ASSERT)
#include <cassert> // assert
#define JSON_ASSERT(x) assert(x)
#endif
/*!
@brief macro to briefly define a mapping between an enum and JSON
@def NLOHMANN_JSON_SERIALIZE_ENUM
@ -120,3 +130,44 @@
basic_json<ObjectType, ArrayType, StringType, BooleanType, \
NumberIntegerType, NumberUnsignedType, NumberFloatType, \
AllocatorType, JSONSerializer, BinaryType>
// Macros to simplify conversion from/to types
#define NLOHMANN_JSON_EXPAND( x ) x
#define NLOHMANN_JSON_GET_MACRO(_1,_2,_3,_4,_5,_6, _7, _8, _9, _10, _11, NAME,...) NAME
#define NLOHMANN_JSON_PASTE(...) NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_GET_MACRO(__VA_ARGS__, NLOHMANN_JSON_PASTE11, \
NLOHMANN_JSON_PASTE10, NLOHMANN_JSON_PASTE9, NLOHMANN_JSON_PASTE8, NLOHMANN_JSON_PASTE7, \
NLOHMANN_JSON_PASTE6, NLOHMANN_JSON_PASTE5, NLOHMANN_JSON_PASTE4, NLOHMANN_JSON_PASTE3, \
NLOHMANN_JSON_PASTE2, NLOHMANN_JSON_PASTE1)(__VA_ARGS__))
#define NLOHMANN_JSON_PASTE2(func, v1) func(v1)
#define NLOHMANN_JSON_PASTE3(func, v1, v2) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE2(func, v2)
#define NLOHMANN_JSON_PASTE4(func, v1, v2, v3) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE3(func, v2, v3)
#define NLOHMANN_JSON_PASTE5(func, v1, v2, v3, v4) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE4(func, v2, v3, v4)
#define NLOHMANN_JSON_PASTE6(func, v1, v2, v3, v4, v5) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE5(func, v2, v3, v4, v5)
#define NLOHMANN_JSON_PASTE7(func, v1, v2, v3, v4, v5, v6) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE6(func, v2, v3, v4, v5, v6)
#define NLOHMANN_JSON_PASTE8(func, v1, v2, v3, v4, v5, v6, v7) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE7(func, v2, v3, v4, v5, v6, v7)
#define NLOHMANN_JSON_PASTE9(func, v1, v2, v3, v4, v5, v6, v7, v8) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE8(func, v2, v3, v4, v5, v6, v7, v8)
#define NLOHMANN_JSON_PASTE10(func, v1, v2, v3, v4, v5, v6, v7, v8, v9) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE8(func, v2, v3, v4, v5, v6, v7, v8, v9)
#define NLOHMANN_JSON_PASTE11(func, v1, v2, v3, v4, v5, v6, v7, v8, v9, v10) NLOHMANN_JSON_PASTE2(func, v1) NLOHMANN_JSON_PASTE8(func, v2, v3, v4, v5, v6, v7, v8, v9, v10)
#define NLOHMANN_JSON_TO(v1) j[#v1] = t.v1;
#define NLOHMANN_JSON_FROM(v1) j.at(#v1).get_to(t.v1);
/*!
@brief macro
@def NLOHMANN_DEFINE_TYPE_INTRUSIVE
@since version 3.9.0
*/
#define NLOHMANN_DEFINE_TYPE_INTRUSIVE(Type, ...) \
friend void to_json(nlohmann::json& j, const Type& t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
friend void from_json(const nlohmann::json& j, Type& t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }
/*!
@brief macro
@def NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE
@since version 3.9.0
*/
#define NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(Type, ...) \
void to_json(nlohmann::json& j, const Type& t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_TO, __VA_ARGS__)) } \
void from_json(const nlohmann::json& j, Type& t) { NLOHMANN_JSON_EXPAND(NLOHMANN_JSON_PASTE(NLOHMANN_JSON_FROM, __VA_ARGS__)) }

1
include/nlohmann/detail/macro_unscope.hpp
View File

@ -9,6 +9,7 @@
#endif
// clean up
#undef JSON_ASSERT
#undef JSON_INTERNAL_CATCH
#undef JSON_CATCH
#undef JSON_THROW

75
include/nlohmann/detail/output/binary_writer.hpp
View File

@ -28,6 +28,7 @@ class binary_writer
{
using string_t = typename BasicJsonType::string_t;
using binary_t = typename BasicJsonType::binary_t;
using number_float_t = typename BasicJsonType::number_float_t;
public:
/*!
@ -37,7 +38,7 @@ class binary_writer
*/
explicit binary_writer(output_adapter_t<CharType> adapter) : oa(adapter)
{
assert(oa);
JSON_ASSERT(oa);
}
/*!
@ -194,18 +195,7 @@ class binary_writer
}
else
{
if (static_cast<double>(j.m_value.number_float) >= static_cast<double>(std::numeric_limits<float>::lowest()) and
static_cast<double>(j.m_value.number_float) <= static_cast<double>((std::numeric_limits<float>::max)()) and
static_cast<double>(static_cast<float>(j.m_value.number_float)) == static_cast<double>(j.m_value.number_float))
{
oa->write_character(get_cbor_float_prefix(static_cast<float>(j.m_value.number_float)));
write_number(static_cast<float>(j.m_value.number_float));
}
else
{
oa->write_character(get_cbor_float_prefix(j.m_value.number_float));
write_number(j.m_value.number_float);
}
write_compact_float(j.m_value.number_float, detail::input_format_t::cbor);
}
break;
}
@ -504,8 +494,7 @@ class binary_writer
case value_t::number_float:
{
oa->write_character(get_msgpack_float_prefix(j.m_value.number_float));
write_number(j.m_value.number_float);
write_compact_float(j.m_value.number_float, detail::input_format_t::msgpack);
break;
}
@ -584,7 +573,7 @@ class binary_writer
const auto N = j.m_value.binary->size();
if (N <= (std::numeric_limits<std::uint8_t>::max)())
{
std::uint8_t output_type;
std::uint8_t output_type{};
bool fixed = true;
if (use_ext)
{
@ -626,30 +615,18 @@ class binary_writer
}
else if (N <= (std::numeric_limits<std::uint16_t>::max)())
{
std::uint8_t output_type;
if (use_ext)
{
output_type = 0xC8; // ext 16
}
else
{
output_type = 0xC5; // bin 16
}
std::uint8_t output_type = use_ext
? 0xC8 // ext 16
: 0xC5; // bin 16
oa->write_character(to_char_type(output_type));
write_number(static_cast<std::uint16_t>(N));
}
else if (N <= (std::numeric_limits<std::uint32_t>::max)())
{
std::uint8_t output_type;
if (use_ext)
{
output_type = 0xC9; // ext 32
}
else
{
output_type = 0xC6; // bin 32
}
std::uint8_t output_type = use_ext
? 0xC9 // ext 32
: 0xC6; // bin 32
oa->write_character(to_char_type(output_type));
write_number(static_cast<std::uint32_t>(N));
@ -777,7 +754,7 @@ class binary_writer
bool prefix_required = true;
if (use_type and not j.m_value.array->empty())
{
assert(use_count);
JSON_ASSERT(use_count);
const CharType first_prefix = ubjson_prefix(j.front());
const bool same_prefix = std::all_of(j.begin() + 1, j.end(),
[this, first_prefix](const BasicJsonType & v)
@ -821,7 +798,7 @@ class binary_writer
if (use_type and not j.m_value.binary->empty())
{
assert(use_count);
JSON_ASSERT(use_count);
oa->write_character(to_char_type('$'));
oa->write_character('U');
}
@ -865,7 +842,7 @@ class binary_writer
bool prefix_required = true;
if (use_type and not j.m_value.object->empty())
{
assert(use_count);
JSON_ASSERT(use_count);
const CharType first_prefix = ubjson_prefix(j.front());
const bool same_prefix = std::all_of(j.begin(), j.end(),
[this, first_prefix](const BasicJsonType & v)
@ -1157,7 +1134,7 @@ class binary_writer
// LCOV_EXCL_START
default:
assert(false);
JSON_ASSERT(false);
return 0ul;
// LCOV_EXCL_STOP
}
@ -1204,7 +1181,7 @@ class binary_writer
// LCOV_EXCL_START
default:
assert(false);
JSON_ASSERT(false);
return;
// LCOV_EXCL_STOP
}
@ -1518,6 +1495,26 @@ class binary_writer
oa->write_characters(vec.data(), sizeof(NumberType));
}
void write_compact_float(const number_float_t n, detail::input_format_t format)
{
if (static_cast<double>(n) >= static_cast<double>(std::numeric_limits<float>::lowest()) and
static_cast<double>(n) <= static_cast<double>((std::numeric_limits<float>::max)()) and
static_cast<double>(static_cast<float>(n)) == static_cast<double>(n))
{
oa->write_character(format == detail::input_format_t::cbor
? get_cbor_float_prefix(static_cast<float>(n))
: get_msgpack_float_prefix(static_cast<float>(n)));
write_number(static_cast<float>(n));
}
else
{
oa->write_character(format == detail::input_format_t::cbor
? get_cbor_float_prefix(n)
: get_msgpack_float_prefix(n));
write_number(n);
}
}
public:
// The following to_char_type functions are implement the conversion
// between uint8_t and CharType. In case CharType is not unsigned,

39
include/nlohmann/detail/output/serializer.hpp
View File

@ -2,14 +2,13 @@
#include <algorithm> // reverse, remove, fill, find, none_of
#include <array> // array
#include <cassert> // assert
#include <clocale> // localeconv, lconv
#include <cmath> // labs, isfinite, isnan, signbit
#include <cstddef> // size_t, ptrdiff_t
#include <cstdint> // uint8_t
#include <cstdio> // snprintf
#include <limits> // numeric_limits
#include <string> // string
#include <string> // string, char_traits
#include <type_traits> // is_same
#include <utility> // move
@ -59,8 +58,8 @@ class serializer
error_handler_t error_handler_ = error_handler_t::strict)
: o(std::move(s))
, loc(std::localeconv())
, thousands_sep(loc->thousands_sep == nullptr ? '\0' : * (loc->thousands_sep))
, decimal_point(loc->decimal_point == nullptr ? '\0' : * (loc->decimal_point))
, thousands_sep(loc->thousands_sep == nullptr ? '\0' : std::char_traits<char>::to_char_type(* (loc->thousands_sep)))
, decimal_point(loc->decimal_point == nullptr ? '\0' : std::char_traits<char>::to_char_type(* (loc->decimal_point)))
, indent_char(ichar)
, indent_string(512, indent_char)
, error_handler(error_handler_)
@ -135,8 +134,8 @@ class serializer
}
// last element
assert(i != val.m_value.object->cend());
assert(std::next(i) == val.m_value.object->cend());
JSON_ASSERT(i != val.m_value.object->cend());
JSON_ASSERT(std::next(i) == val.m_value.object->cend());
o->write_characters(indent_string.c_str(), new_indent);
o->write_character('\"');
dump_escaped(i->first, ensure_ascii);
@ -163,8 +162,8 @@ class serializer
}
// last element
assert(i != val.m_value.object->cend());
assert(std::next(i) == val.m_value.object->cend());
JSON_ASSERT(i != val.m_value.object->cend());
JSON_ASSERT(std::next(i) == val.m_value.object->cend());
o->write_character('\"');
dump_escaped(i->first, ensure_ascii);
o->write_characters("\":", 2);
@ -205,7 +204,7 @@ class serializer
}
// last element
assert(not val.m_value.array->empty());
JSON_ASSERT(not val.m_value.array->empty());
o->write_characters(indent_string.c_str(), new_indent);
dump(val.m_value.array->back(), true, ensure_ascii, indent_step, new_indent);
@ -226,7 +225,7 @@ class serializer
}
// last element
assert(not val.m_value.array->empty());
JSON_ASSERT(not val.m_value.array->empty());
dump(val.m_value.array->back(), false, ensure_ascii, indent_step, current_indent);
o->write_character(']');
@ -360,7 +359,7 @@ class serializer
}
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
}
@ -559,7 +558,7 @@ class serializer
}
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
break;
}
@ -622,7 +621,7 @@ class serializer
}
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
}
}
@ -723,7 +722,7 @@ class serializer
}
// spare 1 byte for '\0'
assert(n_chars < number_buffer.size() - 1);
JSON_ASSERT(n_chars < number_buffer.size() - 1);
// jump to the end to generate the string from backward
// so we later avoid reversing the result
@ -799,9 +798,9 @@ class serializer
std::ptrdiff_t len = (std::snprintf)(number_buffer.data(), number_buffer.size(), "%.*g", d, x);
// negative value indicates an error
assert(len > 0);
JSON_ASSERT(len > 0);
// check if buffer was large enough
assert(static_cast<std::size_t>(len) < number_buffer.size());
JSON_ASSERT(static_cast<std::size_t>(len) < number_buffer.size());
// erase thousands separator
if (thousands_sep != '\0')
@ -809,7 +808,7 @@ class serializer
const auto end = std::remove(number_buffer.begin(),
number_buffer.begin() + len, thousands_sep);
std::fill(end, number_buffer.end(), '\0');
assert((end - number_buffer.begin()) <= len);
JSON_ASSERT((end - number_buffer.begin()) <= len);
len = (end - number_buffer.begin());
}
@ -889,7 +888,7 @@ class serializer
: (0xFFu >> type) & (byte);
std::size_t index = 256u + static_cast<size_t>(state) * 16u + static_cast<size_t>(type);
assert(index < 400);
JSON_ASSERT(index < 400);
state = utf8d[index];
return state;
}
@ -901,7 +900,7 @@ class serializer
*/
number_unsigned_t remove_sign(number_unsigned_t x)
{
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
return x; // LCOV_EXCL_LINE
}
@ -916,7 +915,7 @@ class serializer
*/
inline number_unsigned_t remove_sign(number_integer_t x) noexcept
{
assert(x < 0 and x < (std::numeric_limits<number_integer_t>::max)());
JSON_ASSERT(x < 0 and x < (std::numeric_limits<number_integer_t>::max)());
return static_cast<number_unsigned_t>(-(x + 1)) + 1;
}

149
include/nlohmann/json.hpp
View File

@ -35,7 +35,6 @@ SOFTWARE.
#define NLOHMANN_JSON_VERSION_PATCH 0
#include <algorithm> // all_of, find, for_each
#include <cassert> // assert
#include <cstddef> // nullptr_t, ptrdiff_t, size_t
#include <functional> // hash, less
#include <initializer_list> // initializer_list
@ -197,10 +196,12 @@ class basic_json
static ::nlohmann::detail::parser<basic_json, InputAdapterType> parser(
InputAdapterType adapter,
detail::parser_callback_t<basic_json>cb = nullptr,
bool allow_exceptions = true
const bool allow_exceptions = true,
const bool ignore_comments = false
)
{
return ::nlohmann::detail::parser<basic_json, InputAdapterType>(std::move(adapter), std::move(cb), allow_exceptions);
return ::nlohmann::detail::parser<basic_json, InputAdapterType>(std::move(adapter),
std::move(cb), allow_exceptions, ignore_comments);
}
using primitive_iterator_t = ::nlohmann::detail::primitive_iterator_t;
@ -923,7 +924,7 @@ class basic_json
};
std::unique_ptr<T, decltype(deleter)> object(AllocatorTraits::allocate(alloc, 1), deleter);
AllocatorTraits::construct(alloc, object.get(), std::forward<Args>(args)...);
assert(object != nullptr);
JSON_ASSERT(object != nullptr);
return object.release();
}
@ -1218,10 +1219,10 @@ class basic_json
*/
void assert_invariant() const noexcept
{
assert(m_type != value_t::object or m_value.object != nullptr);
assert(m_type != value_t::array or m_value.array != nullptr);
assert(m_type != value_t::string or m_value.string != nullptr);
assert(m_type != value_t::binary or m_value.binary != nullptr);
JSON_ASSERT(m_type != value_t::object or m_value.object != nullptr);
JSON_ASSERT(m_type != value_t::array or m_value.array != nullptr);
JSON_ASSERT(m_type != value_t::string or m_value.string != nullptr);
JSON_ASSERT(m_type != value_t::binary or m_value.binary != nullptr);
}
public:
@ -1514,7 +1515,7 @@ class basic_json
m_type = value_t::discarded;
break;
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
assert_invariant();
}
@ -1914,8 +1915,8 @@ class basic_json
std::is_same<InputIT, typename basic_json_t::const_iterator>::value, int>::type = 0>
basic_json(InputIT first, InputIT last)
{
assert(first.m_object != nullptr);
assert(last.m_object != nullptr);
JSON_ASSERT(first.m_object != nullptr);
JSON_ASSERT(last.m_object != nullptr);
// make sure iterator fits the current value
if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
@ -2237,7 +2238,8 @@ class basic_json
@param[in] error_handler how to react on decoding errors; there are three
possible values: `strict` (throws and exception in case a decoding error
occurs; default), `replace` (replace invalid UTF-8 sequences with U+FFFD),
and `ignore` (ignore invalid UTF-8 sequences during serialization).
and `ignore` (ignore invalid UTF-8 sequences during serialization; all
bytes are copied to the output unchanged).
@return string containing the serialization of the JSON value
@ -3018,6 +3020,18 @@ class basic_json
return v;
}
// specialization to allow to call get_to with a basic_json value
// see https://github.com/nlohmann/json/issues/2175
template<typename ValueType,
detail::enable_if_t <
detail::is_basic_json<ValueType>::value,
int> = 0>
ValueType & get_to(ValueType& v) const
{
v = *this;
return v;
}
template <
typename T, std::size_t N,
typename Array = T (&)[N],
@ -3619,7 +3633,7 @@ class basic_json
// const operator[] only works for objects
if (JSON_HEDLEY_LIKELY(is_object()))
{
assert(m_value.object->find(key) != m_value.object->end());
JSON_ASSERT(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
@ -3711,7 +3725,7 @@ class basic_json
// at only works for objects
if (JSON_HEDLEY_LIKELY(is_object()))
{
assert(m_value.object->find(key) != m_value.object->end());
JSON_ASSERT(m_value.object->find(key) != m_value.object->end());
return m_value.object->find(key)->second;
}
@ -5479,7 +5493,7 @@ class basic_json
iterator insert_iterator(const_iterator pos, Args&& ... args)
{
iterator result(this);
assert(m_value.array != nullptr);
JSON_ASSERT(m_value.array != nullptr);
auto insert_pos = std::distance(m_value.array->begin(), pos.m_it.array_iterator);
m_value.array->insert(pos.m_it.array_iterator, std::forward<Args>(args)...);
@ -5866,6 +5880,34 @@ class basic_json
/*!
@brief exchanges the values
Exchanges the contents of the JSON value from @a left with those of @a right. Does not
invoke any move, copy, or swap operations on individual elements. All
iterators and references remain valid. The past-the-end iterator is
invalidated. implemented as a friend function callable via ADL.
@param[in,out] left JSON value to exchange the contents with
@param[in,out] right JSON value to exchange the contents with
@complexity Constant.
@liveexample{The example below shows how JSON values can be swapped with
`swap()`.,swap__reference}
@since version 1.0.0
*/
friend void swap(reference left, reference right) noexcept (
std::is_nothrow_move_constructible<value_t>::value and
std::is_nothrow_move_assignable<value_t>::value and
std::is_nothrow_move_constructible<json_value>::value and
std::is_nothrow_move_assignable<json_value>::value
)
{
left.swap(right);
}
/*!
@brief exchanges the values
Exchanges the contents of a JSON array with those of @a other. Does not
invoke any move, copy, or swap operations on individual elements. All
iterators and references remain valid. The past-the-end iterator is
@ -6564,6 +6606,9 @@ class basic_json
(optional)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@param[in] ignore_comments whether comments should be ignored and treated
like whitespace (true) or yield a parse error (true); (optional, false by
default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
@ -6592,16 +6637,18 @@ class basic_json
@liveexample{The example below demonstrates the `parse()` function reading
from a contiguous container.,parse__contiguouscontainer__parser_callback_t}
@since version 2.0.3 (contiguous containers)
@since version 2.0.3 (contiguous containers); version 3.9.0 allowed to
ignore comments.
*/
template<typename InputType>
JSON_HEDLEY_WARN_UNUSED_RESULT
static basic_json parse(InputType&& i,
const parser_callback_t cb = nullptr,
const bool allow_exceptions = true)
const bool allow_exceptions = true,
const bool ignore_comments = false)
{
basic_json result;
parser(detail::input_adapter(std::forward<InputType>(i)), cb, allow_exceptions).parse(true, result);
parser(detail::input_adapter(std::forward<InputType>(i)), cb, allow_exceptions, ignore_comments).parse(true, result);
return result;
}
@ -6618,6 +6665,9 @@ class basic_json
(optional)
@param[in] allow_exceptions whether to throw exceptions in case of a
parse error (optional, true by default)
@param[in] ignore_comments whether comments should be ignored and treated
like whitespace (true) or yield a parse error (true); (optional, false by
default)
@return deserialized JSON value; in case of a parse error and
@a allow_exceptions set to `false`, the return value will be
@ -6633,10 +6683,11 @@ class basic_json
static basic_json parse(IteratorType first,
IteratorType last,
const parser_callback_t cb = nullptr,
const bool allow_exceptions = true)
const bool allow_exceptions = true,
const bool ignore_comments = false)
{
basic_json result;
parser(detail::input_adapter(std::move(first), std::move(last)), cb, allow_exceptions).parse(true, result);
parser(detail::input_adapter(std::move(first), std::move(last)), cb, allow_exceptions, ignore_comments).parse(true, result);
return result;
}
@ -6644,10 +6695,11 @@ class basic_json
JSON_HEDLEY_DEPRECATED_FOR(3.8.0, parse(ptr, ptr + len))
static basic_json parse(detail::span_input_adapter&& i,
const parser_callback_t cb = nullptr,
const bool allow_exceptions = true)
const bool allow_exceptions = true,
const bool ignore_comments = false)
{
basic_json result;
parser(i.get(), cb, allow_exceptions).parse(true, result);
parser(i.get(), cb, allow_exceptions, ignore_comments).parse(true, result);
return result;
}
@ -6667,6 +6719,9 @@ class basic_json
iterators.
@param[in] i input to read from
@param[in] ignore_comments whether comments should be ignored and treated
like whitespace (true) or yield a parse error (true); (optional, false by
default)
@return Whether the input read from @a i is valid JSON.
@ -6679,22 +6734,25 @@ class basic_json
from a string.,accept__string}
*/
template<typename InputType>
static bool accept(InputType&& i)
static bool accept(InputType&& i,
const bool ignore_comments = false)
{
return parser(detail::input_adapter(std::forward<InputType>(i))).accept(true);
return parser(detail::input_adapter(std::forward<InputType>(i)), nullptr, false, ignore_comments).accept(true);
}
template<typename IteratorType>
static bool accept(IteratorType first, IteratorType last)
static bool accept(IteratorType first, IteratorType last,
const bool ignore_comments = false)
{
return parser(detail::input_adapter(std::move(first), std::move(last))).accept(true);
return parser(detail::input_adapter(std::move(first), std::move(last)), nullptr, false, ignore_comments).accept(true);
}
JSON_HEDLEY_WARN_UNUSED_RESULT
JSON_HEDLEY_DEPRECATED_FOR(3.8.0, accept(ptr, ptr + len))
static bool accept(detail::span_input_adapter&& i)
static bool accept(detail::span_input_adapter&& i,
const bool ignore_comments = false)
{
return parser(i.get()).accept(true);
return parser(i.get(), nullptr, false, ignore_comments).accept(true);
}
/*!
@ -6714,6 +6772,9 @@ class basic_json
@param[in,out] sax SAX event listener
@param[in] format the format to parse (JSON, CBOR, MessagePack, or UBJSON)
@param[in] strict whether the input has to be consumed completely
@param[in] ignore_comments whether comments should be ignored and treated
like whitespace (true) or yield a parse error (true); (optional, false by
default); only applies to the JSON file format.
@return return value of the last processed SAX event
@ -6738,11 +6799,12 @@ class basic_json
JSON_HEDLEY_NON_NULL(2)
static bool sax_parse(InputType&& i, SAX* sax,
input_format_t format = input_format_t::json,
const bool strict = true)
const bool strict = true,
const bool ignore_comments = false)
{
auto ia = detail::input_adapter(std::forward<InputType>(i));
return format == input_format_t::json
? parser(std::move(ia)).sax_parse(sax, strict)
? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict)
: detail::binary_reader<basic_json, decltype(ia), SAX>(std::move(ia)).sax_parse(format, sax, strict);
}
@ -6750,11 +6812,12 @@ class basic_json
JSON_HEDLEY_NON_NULL(3)
static bool sax_parse(IteratorType first, IteratorType last, SAX* sax,
input_format_t format = input_format_t::json,
const bool strict = true)
const bool strict = true,
const bool ignore_comments = false)
{
auto ia = detail::input_adapter(std::move(first), std::move(last));
return format == input_format_t::json
? parser(std::move(ia)).sax_parse(sax, strict)
? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict)
: detail::binary_reader<basic_json, decltype(ia), SAX>(std::move(ia)).sax_parse(format, sax, strict);
}
@ -6763,11 +6826,12 @@ class basic_json
JSON_HEDLEY_NON_NULL(2)
static bool sax_parse(detail::span_input_adapter&& i, SAX* sax,
input_format_t format = input_format_t::json,
const bool strict = true)
const bool strict = true,
const bool ignore_comments = false)
{
auto ia = i.get();
return format == input_format_t::json
? parser(std::move(ia)).sax_parse(sax, strict)
? parser(std::move(ia), nullptr, true, ignore_comments).sax_parse(sax, strict)
: detail::binary_reader<basic_json, decltype(ia), SAX>(std::move(ia)).sax_parse(format, sax, strict);
}
@ -7041,7 +7105,8 @@ class basic_json
number_unsigned | 256..65535 | uint 16 | 0xCD
number_unsigned | 65536..4294967295 | uint 32 | 0xCE
number_unsigned | 4294967296..18446744073709551615 | uint 64 | 0xCF
number_float | *any value* | float 64 | 0xCB
number_float | *any value representable by a float* | float 32 | 0xCA
number_float | *any value NOT representable by a float* | float 64 | 0xCB
string | *length*: 0..31 | fixstr | 0xA0..0xBF
string | *length*: 32..255 | str 8 | 0xD9
string | *length*: 256..65535 | str 16 | 0xDA
@ -7065,9 +7130,6 @@ class basic_json
- arrays with more than 4294967295 elements
- objects with more than 4294967295 elements
@note The following MessagePack types are not used in the conversion:
- float 32 (0xCA)
@note Any MessagePack output created @ref to_msgpack can be successfully
parsed by @ref from_msgpack.
@ -8182,7 +8244,7 @@ class basic_json
else
{
const auto idx = json_pointer::array_index(last_path);
if (JSON_HEDLEY_UNLIKELY(static_cast<size_type>(idx) > parent.size()))
if (JSON_HEDLEY_UNLIKELY(idx > parent.size()))
{
// avoid undefined behavior
JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range"));
@ -8196,7 +8258,7 @@ class basic_json
// if there exists a parent it cannot be primitive
default: // LCOV_EXCL_LINE
assert(false); // LCOV_EXCL_LINE
JSON_ASSERT(false); // LCOV_EXCL_LINE
}
};
@ -8225,7 +8287,7 @@ class basic_json
else if (parent.is_array())
{
// note erase performs range check
parent.erase(static_cast<size_type>(json_pointer::array_index(last_path)));
parent.erase(json_pointer::array_index(last_path));
}
};
@ -8660,6 +8722,9 @@ struct less<::nlohmann::detail::value_t>
}
};
// C++20 prohibit function specialization in the std namespace.
#ifndef JSON_HAS_CPP_20
/*!
@brief exchanges the values of two JSON objects
@ -8674,6 +8739,8 @@ inline void swap<nlohmann::json>(nlohmann::json& j1, nlohmann::json& j2) noexcep
j1.swap(j2);
}
#endif
} // namespace std
/*!

972
single_include/nlohmann/json.hpp
View File

File diff suppressed because it is too large Load Diff

2
test/CMakeLists.txt
View File

@ -95,6 +95,7 @@ set(files
src/unit-algorithms.cpp
src/unit-allocator.cpp
src/unit-alt-string.cpp
src/unit-assert_macro.cpp
src/unit-bson.cpp
src/unit-capacity.cpp
src/unit-cbor.cpp
@ -133,6 +134,7 @@ set(files
src/unit-to_chars.cpp
src/unit-ubjson.cpp
src/unit-udt.cpp
src/unit-udt_macro.cpp
src/unit-unicode.cpp
src/unit-user_defined_input.cpp
src/unit-wstring.cpp)

2
test/cmake_fetch_content/CMakeLists.txt
View File

@ -11,8 +11,10 @@ if (${CMAKE_VERSION} VERSION_GREATER "3.11.0")
)
set_tests_properties(cmake_fetch_content_configure PROPERTIES
FIXTURES_SETUP cmake_fetch_content
LABELS git_required
)
set_tests_properties(cmake_fetch_content_build PROPERTIES
FIXTURES_REQUIRED cmake_fetch_content
LABELS git_required
)
endif()

5
test/cmake_fetch_content/project/CMakeLists.txt
View File

@ -4,9 +4,8 @@ project(DummyImport CXX)
include(FetchContent)
FetchContent_Declare(json
GIT_REPOSITORY ${CMAKE_CURRENT_SOURCE_DIR}/../../..
GIT_TAG HEAD)
get_filename_component(GIT_REPOSITORY_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../../.. ABSOLUTE)
FetchContent_Declare(json GIT_REPOSITORY ${GIT_REPOSITORY_DIRECTORY} GIT_TAG HEAD)
FetchContent_GetProperties(json)
if(NOT json_POPULATED)

65
test/src/unit-assert_macro.cpp 100644
View File

@ -0,0 +1,65 @@
/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 3.8.0
|_____|_____|_____|_|___| https://github.com/nlohmann/json
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
SPDX-License-Identifier: MIT
Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
// avoid warning when assert does not abort
#if defined(__GNUC__)
#pragma GCC diagnostic ignored "-Wstrict-overflow"
#endif
#include "doctest_compatibility.h"
/// global variable to record side effect of assert calls
static int assert_counter;
/// set failure variable to true instead of calling assert(x)
#define JSON_ASSERT(x) {if (!(x)) ++assert_counter; }
#include <nlohmann/json.hpp>
using nlohmann::json;
// the test assumes exceptions to work
#if not defined(JSON_NOEXCEPTION)
TEST_CASE("JSON_ASSERT(x)")
{
SECTION("basic_json(first, second)")
{
assert_counter = 0;
CHECK(assert_counter == 0);
json::iterator it;
json j;
// in case assertions do not abort execution, an exception is thrown
CHECK_THROWS_WITH_AS(json(it, j.end()), "[json.exception.invalid_iterator.201] iterators are not compatible", json::invalid_iterator);
// check that assertion actually happened
CHECK(assert_counter == 1);
}
}
#endif

69
test/src/unit-class_lexer.cpp
View File

@ -37,14 +37,23 @@ using nlohmann::json;
namespace
{
// shortcut to scan a string literal
json::lexer::token_type scan_string(const char* s);
json::lexer::token_type scan_string(const char* s)
json::lexer::token_type scan_string(const char* s, const bool ignore_comments = false);
json::lexer::token_type scan_string(const char* s, const bool ignore_comments)
{
auto ia = nlohmann::detail::input_adapter(s);
return nlohmann::detail::lexer<json, decltype(ia)>(std::move(ia)).scan();
return nlohmann::detail::lexer<json, decltype(ia)>(std::move(ia), ignore_comments).scan();
}
}
std::string get_error_message(const char* s, const bool ignore_comments = false);
std::string get_error_message(const char* s, const bool ignore_comments)
{
auto ia = nlohmann::detail::input_adapter(s);
auto lexer = nlohmann::detail::lexer<json, decltype(ia)>(std::move(ia), ignore_comments);
lexer.scan();
return lexer.get_error_message();
}
TEST_CASE("lexer class")
{
SECTION("scan")
@ -127,6 +136,8 @@ TEST_CASE("lexer class")
// store scan() result
const auto res = scan_string(s.c_str());
CAPTURE(s);
switch (c)
{
// single characters that are valid tokens
@ -179,4 +190,56 @@ TEST_CASE("lexer class")
s += "\"";
CHECK((scan_string(s.c_str()) == json::lexer::token_type::value_string));
}
SECTION("fail on comments")
{
CHECK((scan_string("/", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/", false) == "invalid literal");
CHECK((scan_string("/!", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/!", false) == "invalid literal");
CHECK((scan_string("/*", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/*", false) == "invalid literal");
CHECK((scan_string("/**", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/**", false) == "invalid literal");
CHECK((scan_string("//", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("//", false) == "invalid literal");
CHECK((scan_string("/**/", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/**/", false) == "invalid literal");
CHECK((scan_string("/** /", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/** /", false) == "invalid literal");
CHECK((scan_string("/***/", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/***/", false) == "invalid literal");
CHECK((scan_string("/* true */", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/* true */", false) == "invalid literal");
CHECK((scan_string("/*/**/", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/*/**/", false) == "invalid literal");
CHECK((scan_string("/*/* */", false) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/*/* */", false) == "invalid literal");
}
SECTION("ignore comments")
{
CHECK((scan_string("/", true) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/", true) == "invalid comment; expecting '/' or '*' after '/'");
CHECK((scan_string("/!", true) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/!", true) == "invalid comment; expecting '/' or '*' after '/'");
CHECK((scan_string("/*", true) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/*", true) == "invalid comment; missing closing '*/'");
CHECK((scan_string("/**", true) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/**", true) == "invalid comment; missing closing '*/'");
CHECK((scan_string("//", true) == json::lexer::token_type::end_of_input));
CHECK((scan_string("/**/", true) == json::lexer::token_type::end_of_input));
CHECK((scan_string("/** /", true) == json::lexer::token_type::parse_error));
CHECK(get_error_message("/** /", true) == "invalid comment; missing closing '*/'");
CHECK((scan_string("/***/", true) == json::lexer::token_type::end_of_input));
CHECK((scan_string("/* true */", true) == json::lexer::token_type::end_of_input));
CHECK((scan_string("/*/**/", true) == json::lexer::token_type::end_of_input));
CHECK((scan_string("/*/* */", true) == json::lexer::token_type::end_of_input));
}
}

51
test/src/unit-class_parser.cpp
View File

@ -224,6 +224,7 @@ class SaxCountdown : public nlohmann::json::json_sax_t
json parser_helper(const std::string& s);
bool accept_helper(const std::string& s);
void comments_helper(const std::string& s);
json parser_helper(const std::string& s)
{
@ -241,6 +242,8 @@ json parser_helper(const std::string& s)
json::sax_parse(s, &sdp);
CHECK(j_sax == j);
comments_helper(s);
return j;
}
@ -275,11 +278,51 @@ bool accept_helper(const std::string& s)
// 6. check if this approach came to the same result
CHECK(ok_noexcept == ok_noexcept_cb);
// 7. return result
// 7. check if comments are properly ignored
if (ok_accept)
{
comments_helper(s);
}
// 8. return result
return ok_accept;
}
void comments_helper(const std::string& s)
{
json _;
// parse/accept with default parser
CHECK_NOTHROW(_ = json::parse(s));
CHECK(json::accept(s));
// parse/accept while skipping comments
CHECK_NOTHROW(_ = json::parse(s, nullptr, false, true));
CHECK(json::accept(s, true));
std::vector<std::string> json_with_comments;
// start with a comment
json_with_comments.push_back(std::string("// this is a comment\n") + s);
json_with_comments.push_back(std::string("/* this is a comment */") + s);
// end with a comment
json_with_comments.push_back(s + "// this is a comment");
json_with_comments.push_back(s + "/* this is a comment */");
// check all strings
for (const auto& json_with_comment : json_with_comments)
{
CAPTURE(json_with_comment)
CHECK_THROWS_AS(_ = json::parse(json_with_comment), json::parse_error);
CHECK(not json::accept(json_with_comment));
CHECK_NOTHROW(_ = json::parse(json_with_comment, nullptr, true, true));
CHECK(json::accept(json_with_comment, true));
}
}
} // namespace
TEST_CASE("parser class")
{
SECTION("parse")
@ -1834,4 +1877,10 @@ TEST_CASE("parser class")
}
}
}
SECTION("error messages for comments")
{
CHECK_THROWS_WITH_AS(json::parse("/a", nullptr, true, true), "[json.exception.parse_error.101] parse error at line 1, column 2: syntax error while parsing value - invalid comment; expecting '/' or '*' after '/'; last read: '/a'", json::parse_error);
CHECK_THROWS_WITH_AS(json::parse("/*", nullptr, true, true), "[json.exception.parse_error.101] parse error at line 1, column 3: syntax error while parsing value - invalid comment; missing closing '*/'; last read: '/*<U+0000>'", json::parse_error);
}
}

4
test/src/unit-concepts.cpp
View File

@ -154,7 +154,7 @@ TEST_CASE("concepts")
json j {1, 2, 3};
json::iterator it1 = j.begin();
json::iterator it2 = j.end();
std::swap(it1, it2);
swap(it1, it2);
CHECK(it1 == j.end());
CHECK(it2 == j.begin());
}
@ -162,7 +162,7 @@ TEST_CASE("concepts")
json j {1, 2, 3};
json::const_iterator it1 = j.cbegin();
json::const_iterator it2 = j.cend();
std::swap(it1, it2);
swap(it1, it2);
CHECK(it1 == j.end());
CHECK(it2 == j.begin());
}

29
test/src/unit-json_pointer.cpp
View File

@ -348,12 +348,29 @@ TEST_CASE("JSON pointers")
CHECK_THROWS_WITH(j_const["/1+1"_json_pointer] == 1,
"[json.exception.out_of_range.404] unresolved reference token '1+1'");
CHECK_THROWS_AS(j["/111111111111111111111111"_json_pointer] = 1, json::out_of_range&);
CHECK_THROWS_WITH(j["/111111111111111111111111"_json_pointer] = 1,
"[json.exception.out_of_range.404] unresolved reference token '111111111111111111111111'");
CHECK_THROWS_AS(j_const["/111111111111111111111111"_json_pointer] == 1, json::out_of_range&);
CHECK_THROWS_WITH(j_const["/111111111111111111111111"_json_pointer] == 1,
"[json.exception.out_of_range.404] unresolved reference token '111111111111111111111111'");
{
auto too_large_index = std::to_string((std::numeric_limits<unsigned long long>::max)()) + "1";
json::json_pointer jp(std::string("/") + too_large_index);
std::string throw_msg = std::string("[json.exception.out_of_range.404] unresolved reference token '") + too_large_index + "'";
CHECK_THROWS_AS(j[jp] = 1, json::out_of_range&);
CHECK_THROWS_WITH(j[jp] = 1, throw_msg.c_str());
CHECK_THROWS_AS(j_const[jp] == 1, json::out_of_range&);
CHECK_THROWS_WITH(j_const[jp] == 1, throw_msg.c_str());
}
if (sizeof(typename json::size_type) < sizeof(unsigned long long))
{
auto size_type_max_uul = static_cast<unsigned long long>((std::numeric_limits<json::size_type>::max)());
auto too_large_index = std::to_string(size_type_max_uul);
json::json_pointer jp(std::string("/") + too_large_index);
std::string throw_msg = std::string("[json.exception.out_of_range.410] array index ") + too_large_index + " exceeds size_type";
CHECK_THROWS_AS(j[jp] = 1, json::out_of_range&);
CHECK_THROWS_WITH(j[jp] = 1, throw_msg.c_str());
CHECK_THROWS_AS(j_const[jp] == 1, json::out_of_range&);
CHECK_THROWS_WITH(j_const[jp] == 1, throw_msg.c_str());
}
CHECK_THROWS_AS(j.at("/one"_json_pointer) = 1, json::parse_error&);
CHECK_THROWS_WITH(j.at("/one"_json_pointer) = 1,

3
test/src/unit-modifiers.cpp
View File

@ -878,7 +878,8 @@ TEST_CASE("modifiers")
json j("hello world");
json k(42.23);
std::swap(j, k);
using std::swap;
swap(j, k);
CHECK(j == json(42.23));
CHECK(k == json("hello world"));

34
test/src/unit-msgpack.cpp
View File

@ -783,6 +783,40 @@ TEST_CASE("MessagePack")
CHECK(json::from_msgpack(result) == v);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("1.0")
{
double v = 1.0;
json j = v;
std::vector<uint8_t> expected =
{
0xca, 0x3f, 0x80, 0x00, 0x00
};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result) == v);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("128.128")
{
double v = 128.1280059814453125;
json j = v;
std::vector<uint8_t> expected =
{
0xca, 0x43, 0x00, 0x20, 0xc5
};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result) == v);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}

9
test/src/unit-regression.cpp
View File

@ -1945,6 +1945,15 @@ TEST_CASE("regression tests")
)
);
}
SECTION("PR #2181 - regression bug with lvalue")
{
// see https://github.com/nlohmann/json/pull/2181#issuecomment-653326060
json j{{"x", "test"}};
std::string defval = "default value";
auto val = j.value("x", defval);
auto val2 = j.value("y", defval);
}
}
#if not defined(JSON_NOEXCEPTION)

130
test/src/unit-udt_macro.cpp 100644
View File

@ -0,0 +1,130 @@
/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 3.8.0
|_____|_____|_____|_|___| https://github.com/nlohmann/json
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
SPDX-License-Identifier: MIT
Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "doctest_compatibility.h"
#include <nlohmann/json.hpp>
using nlohmann::json;
namespace persons
{
class person_with_private_data
{
private:
std::string name = "";
int age = 0;
json metadata = nullptr;
public:
bool operator==(const person_with_private_data& rhs) const
{
return name == rhs.name && age == rhs.age && metadata == rhs.metadata;
}
person_with_private_data() = default;
person_with_private_data(std::string name_, int age_, json metadata_)
: name(std::move(name_))
, age(age_)
, metadata(std::move(metadata_))
{}
NLOHMANN_DEFINE_TYPE_INTRUSIVE(person_with_private_data, age, name, metadata)
};
class person_without_private_data_1
{
public:
std::string name = "";
int age = 0;
json metadata = nullptr;
bool operator==(const person_without_private_data_1& rhs) const
{
return name == rhs.name && age == rhs.age && metadata == rhs.metadata;
}
person_without_private_data_1() = default;
person_without_private_data_1(std::string name_, int age_, json metadata_)
: name(std::move(name_))
, age(age_)
, metadata(std::move(metadata_))
{}
NLOHMANN_DEFINE_TYPE_INTRUSIVE(person_without_private_data_1, age, name, metadata)
};
class person_without_private_data_2
{
public:
std::string name = "";
int age = 0;
json metadata = nullptr;
bool operator==(const person_without_private_data_2& rhs) const
{
return name == rhs.name && age == rhs.age && metadata == rhs.metadata;
}
person_without_private_data_2() = default;
person_without_private_data_2(std::string name_, int age_, json metadata_)
: name(std::move(name_))
, age(age_)
, metadata(std::move(metadata_))
{}
};
NLOHMANN_DEFINE_TYPE_NON_INTRUSIVE(person_without_private_data_2, age, name, metadata)
} // namespace persons
TEST_CASE_TEMPLATE("Serialization/deserialization via NLOHMANN_DEFINE_TYPE_INTRUSIVE", T,
persons::person_with_private_data,
persons::person_without_private_data_1,
persons::person_without_private_data_2)
{
SECTION("person")
{
// serialization
T p1("Erik", 1, {{"haircuts", 2}});
CHECK(json(p1).dump() == "{\"age\":1,\"metadata\":{\"haircuts\":2},\"name\":\"Erik\"}");
// deserialization
T p2 = json(p1);
CHECK(p2 == p1);
// roundtrip
CHECK(T(json(p1)) == p1);
CHECK(json(T(json(p1))) == json(p1));
// check exception in case of missing field
json j = json(p1);
j.erase("age");
T p3;
CHECK_THROWS_WITH_AS(p3 = json(j), "[json.exception.out_of_range.403] key 'age' not found", json::out_of_range);
}
}