Fix format + Make project buildable

CMakeLists.txt

@@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.25)
 
 project(beman.scope DESCRIPTION "Generic Scope Guard" LANGUAGES CXX)
 
-# enable_testing()
+enable_testing()
 
 # [CMAKE.SKIP_TESTS]
 option(
@@ -20,14 +20,13 @@ option(
     ${PROJECT_IS_TOP_LEVEL}
 )
 
-include(FetchContent)
 include(GNUInstallDirs)
 
-# add_subdirectory(src/beman/scope)
+add_subdirectory(src/beman/scope)
 
-#if(BEMAN_SCOPE_BUILD_TESTS)
-#    add_subdirectory(tests/beman/scope)
-#endif()
+if(BEMAN_SCOPE_BUILD_TESTS)
+    add_subdirectory(tests/beman/scope)
+endif()
 
 if(BEMAN_SCOPE_BUILD_EXAMPLES)
     add_subdirectory(examples)

README.md

@@ -10,7 +10,13 @@ SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
 # Overview
 
-During the C++20 cycle [P0052 Generic Scope Guard and RAII Wrapper for the Standard Library](https://wg21.link/P0052) added 4 types: `scope_exit`, `scope_fail`, `scope_success` and `unique_resource` to [LTFSv3](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/n4908#scopeguard).  In the intervening time, two standard libraries have implemented support as well as Boost. With the imperative for safety and security in C++ developers need every tool in the toolbox. The authors believe it is time to move this facility into the standard.  The paper will re-examine the five year old design and any learning from deployment of the LTFSv3.
+During the C++20 cycle [P0052 Generic Scope Guard and RAII Wrapper for the Standard Library](https://wg21.link/P0052)
+added 4 types: `scope_exit`, `scope_fail`, `scope_success`
+and `unique_resource` to [LTFSv3](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/n4908#scopeguard).
+In the intervening time, two standard libraries have implemented support as well as Boost.
+With the imperative for safety and security in C++ developers need every tool in the toolbox.
+The authors believe it is time to move this facility into the standard.
+The paper will re-examine the five year old design and any learning from deployment of the LTFSv3.
 
 For discussions of this library see:
 

examples/CMakeLists.txt

@@ -7,4 +7,5 @@ message("Examples to be built: ${ALL_EXAMPLES}")
 foreach(example ${ALL_EXAMPLES})
     add_executable(beman.scope.examples.${example})
     target_sources(beman.scope.examples.${example} PRIVATE ${example}.cpp)
+    target_link_libraries(beman.scope.examples.${example} beman::scope)
 endforeach()

examples/scope_example.cpp

@@ -1,10 +1,13 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
+#include <beman/scope/scope.hpp>
+
 #include <cstdlib>
-#include <experimental/scope>
 #include <iostream>
 #include <string_view>
 
+namespace scope = beman::scope;
+
 void print_exit_status(std::string_view name, bool exit_status, bool did_throw) {
     std::cout << name << ":\n";
     std::cout << "  Throwed exception  " << (did_throw ? "yes" : "no") << "\n";
@@ -32,7 +35,7 @@ int main() {
     // Using scope_exit: runs on scope exit (success or exception)
     exit_status = did_throw = false;
     try {
-        auto guard = std::experimental::scope_exit{[&] { exit_status = true; }};
+        auto guard = scope::scope_exit{[&] { exit_status = true; }};
         maybe_throw();
     } catch (...) {
         did_throw = true;
@@ -42,7 +45,7 @@ int main() {
     // Using scope_fail: runs only if an exception occurs
     exit_status = did_throw = false;
     try {
-        auto guard = std::experimental::scope_fail{[&] { exit_status = true; }};
+        auto guard = scope::scope_fail{[&] { exit_status = true; }};
         maybe_throw();
     } catch (...) {
         did_throw = true;
@@ -52,7 +55,7 @@ int main() {
     // Using scope_success: runs only if no exception occurs
     exit_status = did_throw = false;
     try {
-        auto guard = std::experimental::scope_success{[&] { exit_status = true; }};
+        auto guard = scope::scope_success{[&] { exit_status = true; }};
         maybe_throw();
     } catch (...) {
         did_throw = true;

examples/unique_resource_example.cpp

@@ -1,4 +1,3 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-int main()
-{}
+int main() {}

include/beman/scope/scope.hpp

@@ -93,6 +93,33 @@ namespace beman::scope {
 //        template <typename R, typename D>
 //        unique_resource(R, D) -> unique_resource<R, D>;
 
+// TODO: Implement
+struct scope_exit {
+    template <typename F>
+    scope_exit(F) {}
+    ~scope_exit() {
+        // TODO: Cleanup
+    }
+};
+
+// TODO: Implement
+struct scope_fail {
+    template <typename F>
+    scope_fail(F) {}
+    ~scope_fail() {
+        // TODO: Cleanup
+    }
+};
+
+// TODO: Implement
+struct scope_success {
+    template <typename F>
+    scope_success(F) {}
+    ~scope_success() {
+        // TODO: Cleanup
+    }
+};
+
 } // namespace beman::scope
 
 #endif // BEMAN_SCOPE_HPP

src/beman/scope/CMakeLists.txt

@@ -3,14 +3,14 @@
 add_library(beman.scope)
 add_library(beman::scope ALIAS beman.scope)
 
-target_sources(beman.scope PRIVATE identity.cpp)
+target_sources(beman.scope PRIVATE scope.cpp)
 
 target_sources(
     beman.scope
     PUBLIC
         FILE_SET HEADERS
         BASE_DIRS ${PROJECT_SOURCE_DIR}/include
-        FILES ${PROJECT_SOURCE_DIR}/include/beman/scope/identity.hpp
+        FILES ${PROJECT_SOURCE_DIR}/include/beman/scope/scope.hpp
 )
 
 set_target_properties(beman.scope PROPERTIES VERIFY_INTERFACE_HEADER_SETS ON)

src/beman/scope/identity.cpp → src/beman/scope/scope.cpp

@@ -1,3 +1,3 @@
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-#include <beman/scope/identity.hpp>
+#include <beman/scope/scope.hpp>

tests/beman/scope/CMakeLists.txt

@@ -1,4 +1,8 @@
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-#add_executable(beman.scope.tests.identity)
-#target_sources(beman.scope.tests.identity PRIVATE identity.test.cpp)
+add_executable(beman.scope.tests.scope)
+target_sources(beman.scope.tests.scope PRIVATE scope.test.cpp)
+
+target_link_libraries(beman.scope.tests.scope PRIVATE beman::scope)
+
+add_test(NAME beman.scope.tests.scope COMMAND beman.scope.tests.scope)

tests/beman/scope/scope.test.cpp

@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+int main() {
+    // TODO: Add tests
+}