linuxCppStubContent function
Returns the content of a linux/src/Hybrid${className}.cpp stub.
Linux uses __attribute__((constructor)) (GCC/Clang extension) to
auto-register the implementation when the shared library is loaded.
This is identical to the shared src/HybridXxx.cpp pattern but lives
in the platform-specific linux/src/ directory so that the desktop
CMake target can link it directly.
Implementation
String linuxCppStubContent({
required String lib,
required String className,
}) =>
'// Hybrid$className — LinuxNativeImpl.cpp implementation.\n'
'// Generated by nitrogen init. Fill in the method bodies.\n'
'#include "../../lib/src/generated/cpp/$lib.native.g.h"\n'
'\n'
'#include <string>\n'
'\n'
'class Hybrid${className}Impl final : public Hybrid$className {\n'
'public:\n'
' // TODO: implement all pure-virtual methods declared in Hybrid$className\n'
'};\n'
'\n'
'// GCC/Clang auto-registration via constructor attribute.\n'
'__attribute__((constructor))\n'
'static void nitro_auto_register() {\n'
' ${lib}_register_impl(new Hybrid${className}Impl());\n'
'}\n';