--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/CSP2/CSP2_env/env-d9b9114564458d9d-741b3de822f2aaca6c6caa4325c4afce/include/kj/source-location.h	Tue Mar 18 17:55:14 2025 -0400
@@ -0,0 +1,111 @@
+// Copyright (c) 2021 Cloudflare, Inc. and contributors
+// Licensed under the MIT License:
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+#pragma once
+
+#include "string.h"
+
+KJ_BEGIN_HEADER
+
+// GCC does not implement __builtin_COLUMN() as that's non-standard but MSVC & clang do.
+// MSVC does as of version https://github.com/microsoft/STL/issues/54) but there's currently not any
+// pressing need for this for MSVC & writing the write compiler version check is annoying.
+// Checking for clang version is problematic due to the way that XCode lies about __clang_major__.
+// Instead we use __has_builtin as the feature check to check clang.
+// Context: https://github.com/capnproto/capnproto/issues/1305
+#ifdef __has_builtin
+#if __has_builtin(__builtin_COLUMN)
+#define KJ_CALLER_COLUMN() __builtin_COLUMN()
+#else
+#define KJ_CALLER_COLUMN() 0
+#endif
+#else
+#define KJ_CALLER_COLUMN() 0
+#endif
+
+#if KJ_CPP_STD > 201703L
+#define KJ_COMPILER_SUPPORTS_SOURCE_LOCATION 1
+#elif defined(__has_builtin)
+// Clang 9 added these builtins: https://releases.llvm.org/9.0.0/tools/clang/docs/LanguageExtensions.html
+// Use __has_builtin as the way to detect this because __clang_major__ is unreliable (see above
+// about issue with Xcode-provided clang).
+#define KJ_COMPILER_SUPPORTS_SOURCE_LOCATION (   \
+  __has_builtin(__builtin_FILE) &&               \
+  __has_builtin(__builtin_LINE) &&               \
+  __has_builtin(__builtin_FUNCTION)              \
+  )
+#elif __GNUC__ >= 5
+// GCC 5 supports the required builtins: https://gcc.gnu.org/onlinedocs/gcc-5.1.0/gcc/Other-Builtins.html
+#define KJ_COMPILER_SUPPORTS_SOURCE_LOCATION 1
+#endif
+
+namespace kj {
+class SourceLocation {
+  // libc++ doesn't seem to implement <source_location> (or even <experimental/source_location>), so
+  // this is a non-STL wrapper over the compiler primitives (these are the same across MSVC/clang/
+  // gcc). Additionally this uses kj::StringPtr for holding the strings instead of const char* which
+  // makes it integrate a little more nicely into KJ.
+
+  struct Badge { explicit constexpr Badge() = default; };
+  // Neat little trick to make sure we can never call SourceLocation with explicit arguments.
+public:
+#if !KJ_COMPILER_SUPPORTS_SOURCE_LOCATION
+  constexpr SourceLocation() : fileName("??"), function("??"), lineNumber(0), columnNumber(0) {}
+  // Constructs a dummy source location that's not pointing at anything.
+#else
+  constexpr SourceLocation(Badge = Badge{}, const char* file = __builtin_FILE(),
+      const char* func = __builtin_FUNCTION(), uint line = __builtin_LINE(),
+      uint column = KJ_CALLER_COLUMN())
+    : fileName(file), function(func), lineNumber(line), columnNumber(column)
+  {}
+#endif
+
+#if KJ_COMPILER_SUPPORTS_SOURCE_LOCATION
+  // This can only be exposed if we actually generate valid SourceLocation objects as otherwise all
+  // SourceLocation objects would confusingly (and likely problematically) be equated equal.
+  constexpr bool operator==(const SourceLocation& o) const {
+    // Pointer equality is fine here based on how SourceLocation operates & how compilers will
+    // intern all duplicate string constants.
+    return fileName == o.fileName && function == o.function && lineNumber == o.lineNumber &&
+        columnNumber == o.columnNumber;
+  }
+#endif
+
+  const char* fileName;
+  const char* function;
+  uint lineNumber;
+  uint columnNumber;
+};
+
+kj::String KJ_STRINGIFY(const SourceLocation& l);
+
+class NoopSourceLocation {
+  // This is used in places where we want to conditionally compile out tracking the source location.
+  // As such it intentionally lacks all the features but the default constructor so that the API
+  // isn't accidentally used in the wrong compilation context.
+};
+
+KJ_UNUSED static kj::String KJ_STRINGIFY(const NoopSourceLocation& l) {
+  return kj::String();
+}
+}  // namespace kj
+
+KJ_END_HEADER