Add unreachable comments.

2022-07-23 21:00:58 +08:00
parent f85ad28e93
commit e8d6e3f57d
5 changed files with 8 additions and 8 deletions
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -798,7 +798,7 @@ impl Engine {
                            match token {
                                Token::LeftBracket => ASTFlags::NONE,
                                Token::QuestionBracket => ASTFlags::NEGATED,
-                                _ => unreachable!(),
+                                _ => unreachable!("`[` or `?[`"),
                            },
                            false,
                            settings.level_up(),
@@ -1693,7 +1693,7 @@ impl Engine {
                    let opt = match token {
                        Token::LeftBracket => ASTFlags::NONE,
                        Token::QuestionBracket => ASTFlags::NEGATED,
-                        _ => unreachable!(),
+                        _ => unreachable!("`[` or `?[`"),
                    };
                    self.parse_index_chain(input, state, lib, expr, opt, true, settings.level_up())?
                }
@@ -1717,7 +1717,7 @@ impl Engine {
                    let op_flags = match op {
                        Token::Period => ASTFlags::NONE,
                        Token::Elvis => ASTFlags::NEGATED,
-                        _ => unreachable!(),
+                        _ => unreachable!("`.` or `?.`"),
                    };
                    Self::make_dot_expr(state, expr, rhs, ASTFlags::NONE, op_flags, tail_pos)?
                }