source: add ordering to Location

compiler/source.py

@@ -6,6 +6,10 @@ from dataclasses import dataclass
 from beartype import beartype
 from beartype.typing import Optional
 
+from .logger import Logger
+
+logger = Logger(__name__)
+
 
 @beartype
 @dataclass
@@ -17,6 +21,38 @@ class Location:
     def __str__(self) -> str:
         return f"{self.file}:{self.line}:{self.character}"
 
+    @beartype
+    def __lt__(self, other: Location) -> bool:
+        if self.file != other.file:
+            logger.trace(f"{self} is not in the same file as {other}")
+            return False
+
+        if self.line < other.line:
+            logger.trace(f"{self} lesser than {other}")
+            return True
+
+        if self.line > other.line:
+            logger.trace(f"{self} greater than {other}")
+            return False
+
+        if self.character < other.character:
+            logger.trace(f"{self} lesser than {other}")
+            return True
+
+        return False
+
+    @beartype
+    def __ge__(self, other: Location) -> bool:
+        return not self.__lt__(other)
+
+    @beartype
+    def __eq__(self, other: Location) -> bool:
+        return all((
+            self.file == other.file,
+            self.line == other.line,
+            self.character == other.character
+        ))
+
 
 @beartype
 class SourceLocation: