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Merge pull request #1486 from odanoburu/issue408 

Mention internal/external transformers in the documentation
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Erez Shinan 2024-11-13 16:07:18 +01:00 committed by GitHub
parent 24f19a35f3 aeeef0a3da
commit 2f7c9a4e52
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2 changed files with 2 additions and 2 deletions
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2
lark/parse_tree_builder.py
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@ -320,7 +320,7 @@ def inplace_transformer(func):
def apply_visit_wrapper(func, name, wrapper):
if wrapper is _vargs_meta or wrapper is _vargs_meta_inline:
raise NotImplementedError("Meta args not supported for internal transformer")
raise NotImplementedError("Meta args not supported for internal transformer; use YourTransformer().transform(parser.parse()) instead")
@wraps(func)
def f(children):

2
lark/visitors.py
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@ -523,7 +523,7 @@ def v_args(inline: bool = False, meta: bool = False, tree: bool = False, wrapper
Parameters:
inline (bool, optional): Children are provided as ``*args`` instead of a list argument (not recommended for very long lists).
meta (bool, optional): Provides two arguments: ``meta`` and ``children`` (instead of just the latter)
meta (bool, optional): Provides two arguments: ``meta`` and ``children`` (instead of just the latter); ``meta`` isn't available for transformers supplied to Lark using the ``transformer`` parameter (aka internal transformers).
tree (bool, optional): Provides the entire tree as the argument, instead of the children.
wrapper (function, optional): Provide a function to decorate all methods.