[Nim] Bfbs Nim Generator

.github/labeler.yml

@@ -18,6 +18,12 @@ swift:
   - tests/swift/**
   - src/idl_gen_swift.cpp
 
+nim:
+  - '**/*.nim'
+  - nim/**/*
+  - src/idl_gen_nim.cpp
+  - src/bfbs_gen_nim.cpp
+
 javascript:
   - '**/*.js'
   - src/idl_gen_ts.cpp
@@ -61,7 +67,7 @@ rust:
   - '**/*.rs'
   - rust/**/*
   - src/idl_gen_rust.cpp
-  
+
 dart:
   - '**/*.dart'
   - src/idl_gen_dart.cpp
@@ -88,4 +94,4 @@ CI:
 
 grpc:
   - grpc/**/*
-  - src/idl_gen_grpc.cpp
+  - src/idl_gen_grpc.cpp

CMakeLists.txt

@@ -71,10 +71,10 @@ option(FLATBUFFERS_ENABLE_PCH
         Only work if CMake supports 'target_precompile_headers'. \"
         This can speed up compilation time."
        OFF)
-option(FLATBUFFERS_SKIP_MONSTER_EXTRA 
+option(FLATBUFFERS_SKIP_MONSTER_EXTRA
       "Skip generating monster_extra.fbs that contains non-supported numerical\"
       types." OFF)
-option(FLATBUFFERS_STRICT_MODE 
+option(FLATBUFFERS_STRICT_MODE
       "Build flatbuffers with all warnings as errors (-Werror or /WX)."
       OFF)
 
@@ -182,13 +182,15 @@ set(FlatBuffers_Compiler_SRCS
   src/flatc_main.cpp
   src/bfbs_gen.h
   src/bfbs_gen_lua.h
+  src/bfbs_gen_nim.h
   src/bfbs_namer.h
   include/flatbuffers/code_generators.h
   src/binary_annotator.h
   src/binary_annotator.cpp
   src/annotated_binary_text_gen.h
   src/annotated_binary_text_gen.cpp
   src/bfbs_gen_lua.cpp
+  src/bfbs_gen_nim.cpp
   src/code_generators.cpp
   grpc/src/compiler/schema_interface.h
   grpc/src/compiler/cpp_generator.h
@@ -352,8 +354,8 @@ include_directories(grpc)
 
 # Creates an interface library that stores the configuration settings that each
 # target links too. This is a compromise between setting configuration globally
-# with add_compile_options() and the more targetted target_compile_options(). 
-# This way each target in this file can share settings and override them if 
+# with add_compile_options() and the more targetted target_compile_options().
+# This way each target in this file can share settings and override them if
 # needed.
 add_library(ProjectConfig INTERFACE)
 target_compile_features(ProjectConfig
@@ -369,7 +371,7 @@ set(CMAKE_CXX_EXTENSIONS OFF)
 
 if(MSVC_LIKE)
   target_compile_options(ProjectConfig
-    INTERFACE 
+    INTERFACE
       /W4
       $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:
         /WX       # Treat all compiler warnings as errors
@@ -401,8 +403,8 @@ else()
           -Wno-error=stringop-overflow
         >
       >
-      -pedantic 
-      -Wextra 
+      -pedantic
+      -Wextra
       -Wno-unused-parameter
       -Wold-style-cast
       -fsigned-char
@@ -416,7 +418,7 @@ else()
         $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,3.8>:
           -Wimplicit-fallthrough
           -Wextra-semi
-          $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:            
+          $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:
             -Werror=unused-private-field
           >
         >
@@ -425,15 +427,15 @@ else()
       $<$<CXX_COMPILER_ID:GNU>:
         $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,4.4>:
           -Wunused-result
-          -Wunused-parameter 
+          -Wunused-parameter
           -Werror=unused-parameter
           -Wmissing-declarations
         >
         $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,4.7>:
           -Wzero-as-null-pointer-constant
         >
         $<$<VERSION_GREATER:$<CXX_COMPILER_VERSION>,7.0>:
-          -faligned-new 
+          -faligned-new
           $<$<BOOL:${FLATBUFFERS_STRICT_MODE}>:
             -Werror=implicit-fallthrough=2
           >
@@ -463,7 +465,7 @@ if(FLATBUFFERS_BUILD_FLATLIB)
   add_library(flatbuffers STATIC ${FlatBuffers_Library_SRCS})
 
   # Attach header directory for when build via add_subdirectory().
-  target_include_directories(flatbuffers 
+  target_include_directories(flatbuffers
     INTERFACE
       $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
   )
@@ -481,7 +483,7 @@ if(FLATBUFFERS_BUILD_FLATC)
   endif()
 
   target_link_libraries(flatc PRIVATE $<BUILD_INTERFACE:ProjectConfig>)
-  target_compile_options(flatc 
+  target_compile_options(flatc
     PUBLIC
       $<$<AND:$<BOOL:${MSVC_LIKE}>,$<CONFIG:Release>>:
         /MT
@@ -682,13 +684,13 @@ if(FLATBUFFERS_BUILD_GRPCTEST)
   find_package(gRPC CONFIG REQUIRED)
   add_executable(grpctest ${FlatBuffers_GRPCTest_SRCS})
   add_dependencies(grpctest generated_code)
-  target_link_libraries(grpctext 
-    PRIVATE 
+  target_link_libraries(grpctext
+    PRIVATE
       $<BUILD_INTERFACE:ProjectConfig>
-      gRPC::grpc++_unsecure 
-      gRPC::gpr 
+      gRPC::grpc++_unsecure
+      gRPC::gpr
       pthread
-      dl 
+      dl
   )
 endif()
 
@@ -701,8 +703,8 @@ if(FLATBUFFERS_INSTALL)
 
   configure_file(CMake/flatbuffers-config-version.cmake.in flatbuffers-config-version.cmake @ONLY)
   install(
-      FILES 
-        "CMake/flatbuffers-config.cmake" 
+      FILES
+        "CMake/flatbuffers-config.cmake"
         "CMake/BuildFlatBuffers.cmake"
         "${CMAKE_CURRENT_BINARY_DIR}/flatbuffers-config-version.cmake"
       DESTINATION ${FB_CMAKE_DIR}

include/flatbuffers/idl.h

@@ -653,6 +653,7 @@ struct IDLOptions {
     kRust = 1 << 14,
     kKotlin = 1 << 15,
     kSwift = 1 << 16,
+    kNim = 1 << 17,
     kMAX
   };
 

nim/flatbuffers.nimble

@@ -0,0 +1,7 @@
+version     = "2.0.8"
+author      = "flatbuffers"
+description = "Flatbuffers"
+license     = "Apache 2.0"
+srcDir      = "flatbuffers"
+
+requires "nim >= 1.4.0"

nim/flatbuffers/flatbuffers.nim

@@ -0,0 +1,7 @@
+import
+   src/[
+      builder,
+      struct,
+      table
+   ]
+export flatbuffers.builder, flatbuffers.table, flatbuffers.struct