enable __PRETTY_FUNCTION__ trimming for testing

sthalik · May 3, 2024 · db64692 · db64692
1 parent d66c591
commit db64692
Showing 1 changed file with 31 additions and 4 deletions.
diff --git a/entity/name-of.hpp b/entity/name-of.hpp
@@ -1,4 +1,5 @@
 #pragma once
+//#include "compat/assert.hpp"
 #include <Corrade/Containers/StringView.h>
 
 #if defined _MSC_VER
@@ -7,8 +8,7 @@
 #define FM_PRETTY_FUNCTION __PRETTY_FUNCTION__
 #endif
 
-template<typename T>
-static constexpr auto mangled_name() { // NOLINT(bugprone-reserved-identifier)
+template<typename T> static constexpr auto mangled_name() {
     using namespace Corrade::Containers;
     using SVF = StringViewFlag;
     constexpr auto my_strlen = [](const char* str) constexpr -> size_t {
@@ -17,8 +17,35 @@ static constexpr auto mangled_name() { // NOLINT(bugprone-reserved-identifier)
             ;
         return (size_t)(str - start);
     };
-    const char* str = FM_PRETTY_FUNCTION;
-    return StringView { str, my_strlen(str), SVF::Global|SVF::NullTerminated };
+    const char* str_ = FM_PRETTY_FUNCTION;
+    const auto str = StringView { str_, my_strlen(str_), SVF::Global|SVF::NullTerminated };
+#if 1
+    {
+#ifdef _MSC_VER
+        constexpr const char prefix[] = "auto __cdecl mangled_name<";
+        constexpr const char suffix[] = suffix = ">(void)";
+#elif defined __clang__
+        constexpr const char prefix[] = "auto mangled_name() [T = ";
+        constexpr const char suffix[] = "]";
+#else
+        constexpr const char prefix[] = "constexpr auto mangled_name() [with T = ";
+        constexpr const char suffix[] = "]";
+#endif
+
+        bool ok = true;
+        for (auto i = 0uz; i < sizeof(prefix)-1; i++)
+            if (!(ok &= str.data()[i] == prefix[i]))
+                break;
+        for (auto i = 0uz; i < sizeof(suffix)-1; i++)
+            if (!(ok &= str.data()[str.size() - 1 - i] == suffix[sizeof(suffix)-1 - 1 - i]))
+                break;
+        fm_assert(ok);
+        if (ok)
+            return StringView{ str.data() + sizeof(prefix)-1, str.size() - sizeof(prefix)-1 - sizeof(suffix)-1 };
+        else
+            return str;
+    }
+#endif
 }
 
 template<typename T> constexpr inline auto name_of = mangled_name<T>();