From e94db4695e236b42ae1be44b2605075161d5144f Mon Sep 17 00:00:00 2001
From: Dominick Allen <djallen@librehumanitas.org>
Date: Fri, 18 Oct 2024 21:43:44 -0500
Subject: Add temporary work for formatting.

---
 source/fud_assert.cpp | 55 +++++++++++++++++----------------------------------
 1 file changed, 18 insertions(+), 37 deletions(-)

(limited to 'source')

diff --git a/source/fud_assert.cpp b/source/fud_assert.cpp
index 14bf5eb..98f17d0 100644
--- a/source/fud_assert.cpp
+++ b/source/fud_assert.cpp
@@ -1,8 +1,6 @@
 #include "fud_assert.hpp"
 
 #include "fud_array.hpp"
-#include "fud_span.hpp"
-#include "fud_string_view.hpp"
 
 #include <climits>
 #include <cstdio>
@@ -10,46 +8,29 @@
 
 namespace fud {
 
-void assertFormat(
-    const char* assertion,
-    const std::source_location sourceLocation,
-    Span<char, ASSERT_MSG_SIZE> buffer)
-{
-    auto lengthResult = cStringLength(sourceLocation.file_name());
-    size_t filenameLength = 0;
-    auto badLength = lengthResult < 1 || lengthResult > SSIZE_MAX;
-    if (!badLength) {
-        filenameLength = static_cast<size_t>(lengthResult);
-    }
-    const char* filename = nullptr;
-    if (badLength) {
-        constexpr const char invalidFile[] = "INVALID FILE";
-        static_assert(sizeof(invalidFile) < MAX_FILE_CHARS);
-        filenameLength = sizeof(invalidFile);
-        filename = invalidFile;
-    } else if (filenameLength > MAX_LINE_CHARS) {
-        filename = sourceLocation.file_name() + filenameLength - MAX_LINE_CHARS;
-        filenameLength = MAX_FILE_CHARS;
-    }
-
-    // clang-format off
-    static_cast<void>(std::format_to_n(
-        buffer.data(), buffer.size() - 1U,
-        "{:.{}s}:{}: {:.{}s}: Assertion `{:.{}s}` failed\n",
-        filename, filenameLength,
-        sourceLocation.line(),
-        sourceLocation.function_name(), MAX_FUNCTION_CHARS,
-        assertion, MAX_ASSERT_CHARS));
-    // clang-format on
-}
+constexpr std::size_t BITS_PER_OCTAL = 3;
+constexpr auto MAX_LINE_CHARS = BITS_PER_OCTAL * sizeof(decltype(std::source_location{}.line())) + 3;
 
 [[noreturn]] void assertFail(const char* assertion, const std::source_location sourceLocation)
 {
-    Array<char, ASSERT_MSG_SIZE> buffer{};
-    assertFormat(assertion, sourceLocation, Span<char, ASSERT_MSG_SIZE>::make(buffer));
+    const char* file_name = sourceLocation.file_name();
+    if (file_name == nullptr) {
+        fputs("Unknown file", stderr);
+    } else {
+        fputs(file_name, stderr);
+    }
+
+    constexpr std::size_t assertMsgSize = MAX_LINE_CHARS + 3;
+    Array<char, assertMsgSize> buffer{};
+    static_cast<void>(std::format_to_n(buffer.data(), buffer.size() - 1U, ":{}:", sourceLocation.line()));
     buffer[buffer.size() - 1] = '\0';
     fputs(buffer.data(), stderr);
-    std::abort();
+
+    fputs(sourceLocation.function_name(), stderr);
+    fputs(": ", stderr);
+    fputs(assertion, stderr);
+
+    std::terminate();
 }
 
 } // namespace fud
-- 
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