error: Empty string is not supported
 --> tests/ui/bad_eq.rs:4:28
  |
4 |     let regex = regex_dsl!("");
  |                            ^^

error: Empty regex is not supported
 --> tests/ui/bad_eq.rs:6:17
  |
6 |     let regex = regex_dsl!();
  |                 ^^^^^^^^^^^^
  |
  = note: this error originates in the macro `regex_dsl` (in Nightly builds, run with -Z macro-backtrace for more info)

error: expected one of: string literal, character literal, identifier, `#`, `~`
 --> tests/ui/bad_eq.rs:8:28
  |
8 |     let regex = regex_dsl!(122);
  |                            ^^^

error: expected one of: string literal, character literal, identifier, `#`, `~`
  --> tests/ui/bad_eq.rs:10:43
   |
10 |     let regex = regex_dsl!("test", "nop", 123);
   |                                           ^^^