Add Guard::Assert function with std::source_location default parameter

Part of #12489

contributors.md

@@ -249,6 +249,7 @@ Appreciation for contributors who have provided substantial work, but are no lon
 * Brendan Heinonen (staticinvocation)
 * (QuestionableDeer)
 * David Sungaila (sungaila)
+* Garrett Leach (GarrettLeach)
 
 ## Toolchain
 * (Balletie) - macOS

src/openrct2/core/Guard.cpp

@@ -23,6 +23,7 @@
 #include <cstdarg>
 #include <cstdio>
 #include <cstdlib>
+#include <format>
 
 namespace OpenRCT2::Guard
 {
@@ -54,6 +55,15 @@ namespace OpenRCT2::Guard
         _assertBehaviour = behaviour;
     }
 
+    void Assert(bool expression, const std::source_location& location)
+    {
+        if (expression)
+            return;
+
+        std::string message = std::format("Assertion failed in {}:{}", location.function_name(), location.line());
+        Assert(expression, message.c_str());
+    }
+
     void Assert(bool expression, const char* message, ...)
     {
         va_list args;

src/openrct2/core/Guard.hpp

@@ -11,6 +11,7 @@
 
 #include <memory>
 #include <optional>
+#include <source_location>
 #include <stdarg.h>
 #include <stdbool.h>
 #include <string>
@@ -30,7 +31,8 @@ namespace OpenRCT2::Guard
     ASSERT_BEHAVIOUR GetAssertBehaviour();
     void SetAssertBehaviour(ASSERT_BEHAVIOUR behaviour);
 
-    void Assert(bool expression, const char* message = nullptr, ...);
+    void Assert(bool expression, const std::source_location& location = std::source_location::current());
+    void Assert(bool expression, const char* message, ...);
     void Assert_VA(bool expression, const char* message, va_list args);
     void Fail(const char* message = nullptr, ...);
     void Fail_VA(const char* message, va_list args);