def cb_parse_id(tokens):
assert len(tokens) == 1
reg = tokens[0]
return AstId(reg)
def cb_parse(self, tokens):
assert len(tokens) == 1
i = self.str.index(tokens[0])
reg = self.expr[i]
result = AstId(reg)
return result
def cb_parse(self, tokens):
assert len(tokens) == 1
i = self.dct_str_inv[tokens[0]]
reg = self.dct_expr[i]
result = AstId(reg)
return result