Started thedmd/imgui-node-editor integration

3rdparty/imgui-node-editor/external/ScopeGuard/CMakeLists.txt

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+project(ScopeGuard)
+
+add_library(ScopeGuard INTERFACE)
+
+set(_ScopeGuard_Sources
+    ${CMAKE_CURRENT_SOURCE_DIR}/ScopeGuard.h
+)
+
+target_include_directories(ScopeGuard INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
+target_sources(ScopeGuard INTERFACE ${_ScopeGuard_Sources})
+
+source_group("ThirdParty\\ScopeGuard" FILES ${_ScopeGuard_Sources})

3rdparty/imgui-node-editor/external/ScopeGuard/ScopeGuard.h

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+# pragma once
+
+# include <utility>
+
+# define AX_CONCATENATE_IMPL(s1, s2) s1##s2
+# define AX_CONCATENATE(s1, s2)    AX_CONCATENATE_IMPL(s1, s2)
+# ifdef __COUNTER__
+#     define AX_ANONYMOUS_VARIABLE(str) AX_CONCATENATE(str, __COUNTER__)
+# else
+#     define AX_ANONYMOUS_VARIABLE(str) AX_CONCATENATE(str, __LINE__)
+# endif
+
+namespace ax {
+namespace scopeguard_detail {
+
+enum class ScopeGuardOnExit {};
+template <typename F>
+class ScopeGuard
+{
+    F f_;
+    bool active_;
+public:
+    ScopeGuard() = delete;
+    ScopeGuard(const ScopeGuard&) = delete;
+    ScopeGuard& operator=(const ScopeGuard&) = delete;
+    ScopeGuard(ScopeGuard&& rhs): f_(std::move(rhs.f_)), active_(rhs.active_) { rhs.dismiss(); }
+    ScopeGuard(F f): f_(std::move(f)), active_(true) {}
+    ~ScopeGuard() { if (active_) f_(); }
+    void dismiss() { active_ = false; }
+};
+template <typename F>
+inline ScopeGuard<F> operator+(ScopeGuardOnExit, F&& f)
+{
+    return ScopeGuard<F>(std::forward<F>(f));
+}
+
+} // namespace scopeguard_detail
+} // namespace ax
+
+# define AX_SCOPE_EXIT \
+    auto AX_ANONYMOUS_VARIABLE(AX_SCOPE_EXIT_STATE) \
+    = ::ax::scopeguard_detail::ScopeGuardOnExit() + [&]()