Merge pull request 'feat/check-improvements' (#6) from feat/check-improvements into develop

Reviewed-on: KeshavAnandCode/foreign-thon#6

src/foreignthon/cli.py

@@ -254,24 +254,38 @@ def compile(file: Path, output: str | None):
     out_path.write_text(transpiled, encoding="utf-8")
     click.echo(f"Compiled: {out_path}")
     
-
 @main.command(context_settings=CONTEXT_SETTINGS)
-@click.argument("file", type=click.Path(exists=True, path_type=Path))
-def check(file: Path):
-    """Validate a foreign-language file without running it."""
+@click.argument("files", nargs=-1, required=True, type=click.Path(exists=True, path_type=Path))
+def check(files: tuple):
+    """Validate one or more foreign-language files without running them."""
     import ast
+    import io
+    import tokenize as _tokenize
 
+    from .transpiler import _build_mapping, transpile_file
+
+    failed = False
+    for file in files:
         detected_lang = _lang_from_file(file)
         try:
             pack = _load_effective_pack(file, detected_lang)
             transpiled = transpile_file(file, pack=pack)
             ast.parse(transpiled)
-        click.echo(f"✓ {file.name} looks good.")
+
+            source = file.read_text(encoding="utf-8")
+            mapping = _build_mapping(pack)
+            tokens = list(_tokenize.generate_tokens(io.StringIO(source).readline))
+            count = sum(1 for t in tokens if t.type == _tokenize.NAME and t.string in mapping)
+
+            click.echo(f"✓ {file.name} looks good. ({count} tokens translated)")
         except SyntaxError as e:
-        click.echo(f"✗ Syntax error: {e}", err=True)
-        sys.exit(1)
+            click.echo(f"✗ {file.name}: Syntax error: {e}", err=True)
+            failed = True
         except Exception as e:
-        click.echo(f"✗ {e}", err=True)
+            click.echo(f"✗ {file.name}: {e}", err=True)
+            failed = True
+
+    if failed:
         sys.exit(1)
 
 @main.command(context_settings=CONTEXT_SETTINGS)