Add compile-time configuration for build settings

asl/BUILD.bazel

@@ -0,0 +1,17 @@
+# Copyright 2025 Steven Le Rouzic
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+config_setting(
+    name = "debug",
+    values = {
+        "compilation_mode": "dbg",
+    },
+)
+
+config_setting(
+    name = "optimized",
+    values = {
+        "compilation_mode": "opt",
+    },
+)

asl/base/BUILD.bazel

@@ -24,6 +24,13 @@ cc_library(
     srcs = [
         "assert.cpp",
     ],
+    defines = select({
+        "//asl:debug": ["ASL_DEBUG=1"],
+        "//conditions:default": ["ASL_DEBUG=0"],
+    }) + select({
+        "//asl:optimized": ["ASL_OPTIMIZED=1"],
+        "//conditions:default": ["ASL_OPTIMIZED=0"],
+    }),
     visibility = ["//visibility:public"],
 )
 

asl/base/assert.hpp

@@ -24,8 +24,7 @@ void report_assert_failure(const char* msg, const source_location& sl = source_l
     #define ASL_DEBUG_BREAK() __builtin_debugtrap()
 #endif
 
-// @Todo Configure asserts at build time
-
+#if !ASL_OPTIMIZED
     #define ASL_ASSERT(...)                                                 \
         if (__VA_ARGS__) {}                                                 \
         else                                                                \
@@ -33,6 +32,9 @@ void report_assert_failure(const char* msg, const source_location& sl = source_l
             ::asl::report_assert_failure(#__VA_ARGS__);                     \
             ASL_DEBUG_BREAK();                                              \
         }
+#else
+    #define ASL_ASSERT(...)
+#endif
 
 #define ASL_ASSERT_RELEASE(...)                                         \
     if (__VA_ARGS__) {}                                                 \

asl/base/bit.hpp

@@ -114,7 +114,7 @@ constexpr T rotl(T v, int s) // NOLINT(*-no-recursion)
 {
     static constexpr int N = sizeof(decltype(v)) * 8;
     s = s % N;
-    return (s >= 0) ? (v << s) | (v >> (N - s)) : rotr(v, -s);
+    return (s >= 0) ? (v << s) | (v >> ((N - s) % N)) : rotr(v, -s);
 }
 
 template<is_unsigned_integer T>
@@ -122,7 +122,7 @@ constexpr T rotr(T v, int s) // NOLINT(*-no-recursion)
 {
     static constexpr int N = sizeof(decltype(v)) * 8;
     s = s % N;
-    return (s >= 0) ? (v >> s) | (v << (N - s)) : rotl(v, -s);
+    return (s >= 0) ? (v >> s) | (v << ((N - s) % N)) : rotl(v, -s);
 }
 
 constexpr uint16_t byteswap(uint16_t v)

asl/base/config.hpp

@@ -22,5 +22,15 @@
     #error Unknown compiler
 #endif
 
+// ASL_DEBUG=1 for slow builds, with extra validation logic and such.
+#if !defined(ASL_DEBUG)
+    #error ASL_DEBUG should be defined to 0 or 1
+#endif
+
+// ASL_OPTIMIZED=1 for fast builds, with minimal validation logic.
+#if !defined(ASL_OPTIMIZED)
+    #error ASL_OPTIMIZED should be defined to 0 or 1
+#endif
+
 // NOLINTEND(*-macro-to-enum)
 

asl/logging/logging.hpp

@@ -87,9 +87,26 @@ void log(level l, const source_location& sl, string_view fmt, const Args&... arg
 
 } // namespace asl::log
 
-// @Todo Compile-time configuration of logging
-
+#if !defined(ASL_LOG_LEVEL) || ASL_LOG_LEVEL >= 4
     #define ASL_LOG_DEBUG(...)   ::asl::log::log(::asl::log::kDebug,   ::asl::source_location{}, __VA_ARGS__)
+#else
+    #define ASL_LOG_DEBUG(...)
+#endif
+
+#if !defined(ASL_LOG_LEVEL) || ASL_LOG_LEVEL >= 3
     #define ASL_LOG_INFO(...)    ::asl::log::log(::asl::log::kInfo,    ::asl::source_location{}, __VA_ARGS__)
+#else
+    #define ASL_LOG_DEBUG(...)
+#endif
+
+#if !defined(ASL_LOG_LEVEL) || ASL_LOG_LEVEL >= 2
     #define ASL_LOG_WARNING(...) ::asl::log::log(::asl::log::kWarning, ::asl::source_location{}, __VA_ARGS__)
+#else
+    #define ASL_LOG_DEBUG(...)
+#endif
+
+#if !defined(ASL_LOG_LEVEL) || ASL_LOG_LEVEL >= 1
     #define ASL_LOG_ERROR(...)   ::asl::log::log(::asl::log::kError,   ::asl::source_location{}, __VA_ARGS__)
+#else
+    #define ASL_LOG_DEBUG(...)
+#endif

asl/types/span.hpp

@@ -68,7 +68,7 @@ public:
         , m_size{size}
     {}
 
-    constexpr explicit span(T* data, isize_t size)
+    constexpr explicit span(T* data, [[maybe_unused]] isize_t size)
         requires (!kIsDynamic)
         : m_data{data}
     {