update ceph source to reef 18.1.2

[ceph.git] / ceph / src / jaegertracing / opentelemetry-cpp / tools / vcpkg / scripts / cmake / z_vcpkg_function_arguments.cmake

diff --git a/ceph/src/jaegertracing/opentelemetry-cpp/tools/vcpkg/scripts/cmake/z_vcpkg_function_arguments.cmake b/ceph/src/jaegertracing/opentelemetry-cpp/tools/vcpkg/scripts/cmake/z_vcpkg_function_arguments.cmake
new file mode 100644 (file)
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+++ b/ceph/src/jaegertracing/opentelemetry-cpp/tools/vcpkg/scripts/cmake/z_vcpkg_function_arguments.cmake
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+#[===[.md:
+# z_vcpkg_function_arguments
+
+**Only for internal use in vcpkg helpers. Behavior and arguments will change without notice.**
+Get a list of the arguments which were passed in.
+Unlike `ARGV`, which is simply the arguments joined with `;`,
+so that `(A B)` is not distinguishable from `("A;B")`,
+this macro gives `"A;B"` for the first argument list,
+and `"A\;B"` for the second.
+
+```cmake
+z_vcpkg_function_arguments(<out-var> [<N>])
+```
+
+`z_vcpkg_function_arguments` gets the arguments between `ARGV<N>` and the last argument.
+`<N>` defaults to `0`, so that all arguments are taken.
+
+## Example:
+```cmake
+function(foo_replacement)
+    z_vcpkg_function_arguments(ARGS)
+    foo(${ARGS})
+    ...
+endfunction()
+```
+#]===]
+
+# NOTE: this function definition is copied directly to scripts/buildsystems/vcpkg.cmake
+# do not make changes here without making the same change there.
+macro(z_vcpkg_function_arguments OUT_VAR)
+    if("${ARGC}" EQUAL 1)
+        set(z_vcpkg_function_arguments_FIRST_ARG 0)
+    elseif("${ARGC}" EQUAL 2)
+        set(z_vcpkg_function_arguments_FIRST_ARG "${ARGV1}")
+    else()
+        # vcpkg bug
+        message(FATAL_ERROR "z_vcpkg_function_arguments: invalid arguments (${ARGV})")
+    endif()
+
+    set("${OUT_VAR}")
+
+    # this allows us to get the value of the enclosing function's ARGC
+    set(z_vcpkg_function_arguments_ARGC_NAME "ARGC")
+    set(z_vcpkg_function_arguments_ARGC "${${z_vcpkg_function_arguments_ARGC_NAME}}")
+
+    math(EXPR z_vcpkg_function_arguments_LAST_ARG "${z_vcpkg_function_arguments_ARGC} - 1")
+    if(z_vcpkg_function_arguments_LAST_ARG GREATER_EQUAL z_vcpkg_function_arguments_FIRST_ARG)
+        foreach(z_vcpkg_function_arguments_N RANGE "${z_vcpkg_function_arguments_FIRST_ARG}" "${z_vcpkg_function_arguments_LAST_ARG}")
+            string(REPLACE ";" "\\;" z_vcpkg_function_arguments_ESCAPED_ARG "${ARGV${z_vcpkg_function_arguments_N}}")
+            list(APPEND "${OUT_VAR}" "${z_vcpkg_function_arguments_ESCAPED_ARG}")
+        endforeach()
+    endif()
+endmacro()