Added visitors & transformers to standalone (Issue #223)

lark/parse_tree_builder.py

@@ -106,7 +106,7 @@ class Callback(object):
     pass
 
 
-def inline_args(func):
+def ptb_inline_args(func):
     @wraps(func)
     def f(children):
         return func(*children)
@@ -154,7 +154,7 @@ class ParseTreeBuilder:
                 assert not getattr(f, 'meta', False), "Meta args not supported for internal transformer"
                 # XXX InlineTransformer is deprecated!
                 if getattr(f, 'inline', False) or isinstance(transformer, InlineTransformer):
-                    f = inline_args(f)
+                    f = ptb_inline_args(f)
             except AttributeError:
                 f = partial(self.tree_class, user_callback_name)
 

lark/tools/standalone.py

@@ -56,6 +56,7 @@ EXTRACT_STANDALONE_FILES = [
     'utils.py',
     'common.py',
     'tree.py',
+    'visitors.py',
     'indenter.py',
     'lexer.py',
     'parse_tree_builder.py',
@@ -161,7 +162,7 @@ class TreeBuilderAtoms:
         self.ptb = lark._parse_tree_builder
 
     def print_python(self):
-        print('class InlineTransformer: pass')
+        # print('class InlineTransformer: pass')
         print('RULES = {')
         for i, r in enumerate(self.rules):
             rule_ids[r] = i

lark/utils.py

@@ -73,6 +73,7 @@ def smart_decorator(f, create_decorator):
         return create_decorator(f.__func__.__call__, True)
 
 
+###}
 
 
 try:
@@ -93,7 +94,6 @@ except ImportError:
         except excs:
             pass
 
-###}
 
 
 

lark/visitors.py

@@ -1,13 +1,14 @@
-from inspect import getmembers, getmro
 from functools import wraps
 
 from .utils import smart_decorator
 from .tree import Tree
 
+###{standalone
+from inspect import getmembers, getmro
+
 class Discard(Exception):
     pass
 
-
 # Transformers
 
 class Transformer:
@@ -250,3 +251,4 @@ def v_args(inline=False, meta=False, tree=False):
     return _visitor_args_dec
 
 
+###}