Support 3.11 / PEP 654 syntax (#3016)

[etc/vim.git] / src / blib2to3 / pgen2 / grammar.py

diff --git a/src/blib2to3/pgen2/grammar.py b/src/blib2to3/pgen2/grammar.py
index 2882cdac89b2ac138151edd8d1791ea55db799f0..337a64f17269c80005c295e757949dc086dc7c19 100644 (file)
--- a/src/blib2to3/pgen2/grammar.py
+++ b/src/blib2to3/pgen2/grammar.py
@@ -89,8 +89,10 @@ class Grammar(object):
         self.dfas: Dict[int, DFAS] = {}
         self.labels: List[Label] = [(0, "EMPTY")]
         self.keywords: Dict[str, int] = {}
+        self.soft_keywords: Dict[str, int] = {}
         self.tokens: Dict[int, int] = {}
         self.symbol2label: Dict[str, int] = {}
+        self.version: Tuple[int, int] = (0, 0)
         self.start = 256
         # Python 3.7+ parses async as a keyword, not an identifier
         self.async_keywords = False
@@ -136,6 +138,7 @@ class Grammar(object):
             "number2symbol",
             "dfas",
             "keywords",
+            "soft_keywords",
             "tokens",
             "symbol2label",
         ):
@@ -143,6 +146,7 @@ class Grammar(object):
         new.labels = self.labels[:]
         new.states = self.states[:]
         new.start = self.start
+        new.version = self.version
         new.async_keywords = self.async_keywords
         return new