def p_expr__member_method_call_lookup(self, p):
"aexpr : aexpr '[' exprs ']'"
p[0] = ast.MemberMethodCallExprAST(self, p[1], "lookup", p[3])
def p_expr__member_method_call(self, p):
"aexpr : aexpr DOT ident '(' exprs ')'"
p[0] = ast.MemberMethodCallExprAST(self, p[1], p[3], p[5])