stx: add package (#2787)

* stx: add package

* disable plat

packages/s/stx/xmake.lua

@@ -0,0 +1,44 @@
+package("stx")
+    set_homepage("https://lamarrr.github.io/STX")
+    set_description("C++17 & C++ 20 error-handling and utility extensions. ")
+    set_license("MIT")
+
+    add_urls("https://github.com/lamarrr/STX/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/lamarrr/STX.git")
+
+    add_versions("v1.0.3", "0118b76a5f2a7a60132edecc9b632d9fc82a187bc232ac1a3fd9200fdd92dc7d")
+
+    add_configs("backtrace", {description = "Enable stack backtraces", default = false, type = "boolean"})
+    add_configs("custom_handler", {description = "Override the default panic behaviour by implementing a custom panic handler. The default behavior is to print the panic report and abort the program. (You can read the docs for more details)", default = false, type = "boolean"})
+    add_configs("shared", {description = "Build shared binaries", default = false, type = "boolean", readonly = true})
+
+    if is_plat("linux", "bsd") then
+        add_syslinks("pthread")
+    end
+
+    add_deps("cmake")
+
+    on_install("windows", "linux", "macosx", "bsd", "mingw", "msys", "iphoneos", "cross", function (package)
+        local configs = {}
+        table.insert(configs, "-DCMAKE_BUILD_TYPE=" .. (package:is_debug() and "Debug" or "Release"))
+        table.insert(configs, "-DBUILD_SHARED_LIBS=" .. (package:config("shared") and "ON" or "OFF"))
+        table.insert(configs, "-DSTX_ENABLE_BACKTRACE=" .. (package:config("backtrace") and "ON" or "OFF"))
+        table.insert(configs, "-DSTX_CUSTOM_PANIC_HANDLER=" .. (package:config("custom_handler") and "ON" or "OFF"))
+        import("package.tools.cmake").install(package, configs)
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <stx/option.h>
+            using stx::Option, stx::Some, stx::None;
+            auto safe_divide(double numerator, double denominator) -> Option<double> {
+                if (denominator == 0.0) return None;
+                return Some(numerator / denominator);
+            }
+            void test() {
+                safe_divide(5.0, 2.0).match(
+                    [](auto value){},
+                    [](){});
+            }
+        ]]}, {configs = {languages = "c++17"}}))
+    end)