main+errors: move pretty printing errors into a method

compiler/__main__.py

@@ -7,8 +7,8 @@ import typing
 
 from . import semantic, ir, optimizations
 from .errors import CompilationError, CompilationWarning
+from .interpreter import virtual_machine
 from .lexer import Lexer, Tokens
-from .logger import rootLogger, LogLevel
 from .parser import Parser
 
 
@@ -81,11 +81,7 @@ def main():
 
     except CompilationError as e:
         e.location.source = tokens.data
-        print(f"{e}\n{e.location.show_in_source()}", flush=True)
-        if e.__cause__ is not None:
-            if rootLogger.level <= LogLevel.Debug:
-                raise e.__cause__
-            print(f"Caused by:\n{e.__cause__.__class__.__name__}: {e.__cause__}", flush=True)
+        e.pretty_print()
 
     finally:
         CompilationWarning.show_warnings(data, file=sys.stdout)

compiler/errors.py

@@ -8,6 +8,7 @@ from typing import TextIO
 from termcolor import termcolor
 
 from . import source, lexer
+from .logger import rootLogger, LogLevel
 
 
 class LevelType:
@@ -40,6 +41,13 @@ class CompilationError(Exception):
         super().__init__(f"{str(location)}: {Levels.Error.value.show_with_suffix(':')} {message}")
         self.location = location
 
+    def pretty_print(self):
+        print(f"{self}\n{self.location.show_in_source()}", flush=True)
+        if self.__cause__ is not None:
+            if rootLogger.level <= LogLevel.Debug:
+                raise self.__cause__
+            print(f"Caused by:\n{self.__cause__.__class__.__name__}: {self.__cause__}", flush=True)
+
 
 class CompilationWarning(Warning):
     _pending_warnings: list[CompilationWarning] = []