getargs-derive 0.1.0

Clap-style #[derive] command-line argument parser for no_std and embedded Rust: zero allocation, compile-time help, subcommands. Built on getargs.
Documentation 
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error: `possible_values` requires a value, e.g. `possible_values = ["fast", "slow"]`
 --> tests/ui/validation_possible_values.rs:5:17
  |
5 |     #[arg(long, possible_values)]
  |                 ^^^^^^^^^^^^^^^

error: `possible_values` expects an array of string literals, e.g. `possible_values = ["fast", "slow"]`
 --> tests/ui/validation_possible_values.rs:7:35
  |
7 |     #[arg(long, possible_values = "fast")]
  |                                   ^^^^^^

error: `possible_values` cannot be empty
 --> tests/ui/validation_possible_values.rs:9:35
  |
9 |     #[arg(long, possible_values = [])]
  |                                   ^^

error: `possible_values` expects string literals, e.g. `possible_values = ["fast", "slow"]`
  --> tests/ui/validation_possible_values.rs:11:44
   |
11 |     #[arg(long, possible_values = ["fast", 1, ""])]
   |                                            ^

error: a possible value cannot be empty
  --> tests/ui/validation_possible_values.rs:11:47
   |
11 |     #[arg(long, possible_values = ["fast", 1, ""])]
   |                                               ^^

error: duplicate possible value "fast"
  --> tests/ui/validation_possible_values.rs:13:52
   |
13 |     #[arg(long, possible_values = ["fast", "slow", "fast"])]
   |                                                    ^^^^^^

error: `default_value` "turbo" is not one of the possible values: fast, slow
  --> tests/ui/validation_possible_values.rs:15:69
   |
15 |     #[arg(long, possible_values = ["fast", "slow"], default_value = "turbo")]
   |                                                                     ^^^^^^^

error: `possible_values` cannot be used on flags because they do not take a value
  --> tests/ui/validation_possible_values.rs:17:35
   |
17 |     #[arg(long, possible_values = ["on", "off"], action = SetFalse)]
   |                                   ^^^^^^^^^^^^^