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Convert flatbuffers_version_string to inline function #7046

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merged 3 commits into from
Jan 30, 2022
Merged

Convert flatbuffers_version_string to inline function #7046

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2e6640e
Skip conditional for python executable
dbaileychess Jan 29, 2022
9cbf66f
replaced flatbuffers_version_string with inline function
dbaileychess Jan 29, 2022
987192b
use const char* instead of string
dbaileychess Jan 29, 2022
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6 changes: 1 addition & 5 deletions CMakeLists.txt
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Expand Up @@ -534,11 +534,7 @@ if(PYTHONINTERP_FOUND AND
# Skip doing this if the MSVC version is below VS 12.
# https://cmake.org/cmake/help/latest/variable/MSVC_VERSION.html
(NOT MSVC OR MSVC_VERSION GREATER 1800))
if(MSVC)
set(GENERATION_SCRIPT ${PYTHON_EXECUTABLE} scripts/generate_code.py)
else()
set(GENERATION_SCRIPT scripts/generate_code.py)
endif()
set(GENERATION_SCRIPT ${PYTHON_EXECUTABLE} scripts/generate_code.py)
if(FLATBUFFERS_BUILD_LEGACY)
# Need to set --cpp-std c++-0x options
set(GENERATION_SCRIPT ${GENERATION_SCRIPT} --cpp-0x)
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11 changes: 0 additions & 11 deletions docs/source/Building.md
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Expand Up @@ -121,14 +121,3 @@ add this directive:
set(FLATBUFFERS_MAX_PARSING_DEPTH 16)
```
to `CMakeLists.txt` file before `add_subdirectory(${FLATBUFFERS_SRC_DIR})` line.

#### For Google Play apps

For applications on Google Play that integrate this library, usage is tracked.
This tracking is done automatically using the embedded version string
(flatbuffer_version_string), and helps us continue to optimize it.
Aside from consuming a few extra bytes in your application binary, it shouldn't
affect your application at all. We use this information to let us know if
FlatBuffers is useful and if we should continue to invest in it. Since this is
open source, you are free to remove the version string but we would appreciate
if you would leave it in.
2 changes: 0 additions & 2 deletions grpc/src/compiler/java_generator.cc
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Expand Up @@ -23,8 +23,6 @@
#include <utility>
#include <vector>

// just to get flatbuffer_version_string()
#include <flatbuffers/flatbuffers.h>
#include <flatbuffers/util.h>
#define to_string flatbuffers::NumToString

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25 changes: 5 additions & 20 deletions include/flatbuffers/flatbuffers.h
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Expand Up @@ -226,26 +226,11 @@ struct TypeTable {
};

// String which identifies the current version of FlatBuffers.
// flatbuffer_version_string is used by Google developers to identify which
// applications uploaded to Google Play are using this library. This allows
// the development team at Google to determine the popularity of the library.
// How it works: Applications that are uploaded to the Google Play Store are
// scanned for this version string. We track which applications are using it
// to measure popularity. You are free to remove it (of course) but we would
// appreciate if you left it in.

// Weak linkage is culled by VS & doesn't work on cygwin.
// clang-format off
#if !defined(_WIN32) && !defined(__CYGWIN__)

extern volatile __attribute__((weak)) const char *flatbuffer_version_string;
volatile __attribute__((weak)) const char *flatbuffer_version_string =
"FlatBuffers "
FLATBUFFERS_STRING(FLATBUFFERS_VERSION_MAJOR) "."
FLATBUFFERS_STRING(FLATBUFFERS_VERSION_MINOR) "."
FLATBUFFERS_STRING(FLATBUFFERS_VERSION_REVISION);

#endif // !defined(_WIN32) && !defined(__CYGWIN__)
inline const char * flatbuffers_version_string() {
return "FlatBuffers " FLATBUFFERS_STRING(FLATBUFFERS_VERSION_MAJOR) "."
FLATBUFFERS_STRING(FLATBUFFERS_VERSION_MINOR) "."
FLATBUFFERS_STRING(FLATBUFFERS_VERSION_REVISION);
}

#define FLATBUFFERS_DEFINE_BITMASK_OPERATORS(E, T)\
inline E operator | (E lhs, E rhs){\
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