intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 38 insertions, 0 deletions

diff --git a/library/cpp/yt/misc/source_location.h b/library/cpp/yt/misc/source_location.h
new file mode 100644
index 00000000000..84213eea708
--- /dev/null
+++ b/library/cpp/yt/misc/source_location.h
@@ -0,0 +1,38 @@
+#pragma once
+
+namespace NYT {
+
+////////////////////////////////////////////////////////////////////////////////
+
+class TSourceLocation
+{
+public:
+    TSourceLocation()
+        : FileName_(nullptr)
+        , Line_(-1)
+    { }
+
+    TSourceLocation(const char* fileName, int line)
+        : FileName_(fileName)
+        , Line_(line)
+    { }
+
+    const char* GetFileName() const;
+    int GetLine() const;
+    bool IsValid() const;
+
+    bool operator<(const TSourceLocation& other) const;
+    bool operator==(const TSourceLocation& other) const;
+
+private:
+    const char* FileName_;
+    int Line_;
+
+};
+
+//! Defines a macro to record the current source location.
+#define FROM_HERE ::NYT::TSourceLocation(__FILE__, __LINE__)
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT