added source maps

src/foreignthon/cli.py

@@ -1,15 +1,13 @@
 from __future__ import annotations
 
-import runpy
 import sys
-import tempfile
 from pathlib import Path
 
 import click
 
 from . import __version__
 from .errors import activate
-from .transpiler import transpile_file
+from .transpiler import transpile_file, run_transpiled
 
 
 @click.group()
@@ -26,15 +24,13 @@ def main():
 def run(file: Path, lang: str | None, keep: bool):
     """Transpile and run a foreign-language Python file."""
     if lang:
-        # Inject shebang override so transpiler picks it up
         source = file.read_text(encoding="utf-8")
         if not source.startswith("# foreignthon:"):
             source = f"# foreignthon: {lang}\n" + source
-        file.write_text(source, encoding="utf-8")
+            file.write_text(source, encoding="utf-8")
 
     transpiled = transpile_file(file)
 
-    # Detect lang for error hook
     detected_lang = lang or _lang_from_file(file)
     activate(detected_lang)
 
@@ -43,17 +39,7 @@ def run(file: Path, lang: str | None, keep: bool):
         out_path.write_text(transpiled, encoding="utf-8")
         click.echo(f"Compiled: {out_path}")
 
-    # Write to a temp file and run it — runpy keeps __file__ correct
-    with tempfile.NamedTemporaryFile(
-        suffix=".py", mode="w", encoding="utf-8", delete=False
-    ) as tmp:
-        tmp.write(transpiled)
-        tmp_path = tmp.name
-
-    try:
-        runpy.run_path(tmp_path, run_name="__main__")
-    finally:
-        Path(tmp_path).unlink(missing_ok=True)
+    run_transpiled(file, transpiled)
 
 
 @main.command()