mirror of
https://github.com/clap-rs/clap
synced 2024-12-14 14:52:33 +00:00
7f08773a5a
Before, partial command lines would panic at runtime. Now it'll be a
compile error
For example:
```
pub enum Opt {
Daemon(DaemonCommand),
}
pub enum DaemonCommand {
Start,
Stop,
}
```
Gives:
```
error[E0277]: the trait bound `DaemonCommand: clap::Args` is not satisfied
--> clap_derive/tests/subcommands.rs:297:16
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297 | Daemon(DaemonCommand),
| ^^^^^^^^^^^^^ the trait `clap::Args` is not implemented for `DaemonCommand`
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= note: required by `augment_args`
```
To nest this, you currently need `enum -> struct -> enum`. A later
change will make it so you can use the `subcommand` attribute within
enums to cover this case.
This is a part of #2005
78 lines
1.9 KiB
Rust
78 lines
1.9 KiB
Rust
// https://github.com/TeXitoi/structopt/issues/{NUMBER}
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mod utils;
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use utils::*;
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use clap::{AppSettings, ArgGroup, Clap};
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#[test]
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fn issue_151() {
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#[derive(Clap, Debug)]
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#[clap(group = ArgGroup::new("verb").required(true).multiple(true))]
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struct Opt {
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#[clap(long, group = "verb")]
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foo: bool,
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#[clap(long, group = "verb")]
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bar: bool,
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}
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#[derive(Debug, Clap)]
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struct Cli {
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#[clap(flatten)]
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a: Opt,
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}
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assert!(Cli::try_parse_from(&["test"]).is_err());
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assert!(Cli::try_parse_from(&["test", "--foo"]).is_ok());
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assert!(Cli::try_parse_from(&["test", "--bar"]).is_ok());
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assert!(Cli::try_parse_from(&["test", "--zebra"]).is_err());
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assert!(Cli::try_parse_from(&["test", "--foo", "--bar"]).is_ok());
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}
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#[test]
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fn issue_289() {
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#[derive(Clap)]
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#[clap(setting = AppSettings::InferSubcommands)]
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enum Args {
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SomeCommand {
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#[clap(subcommand)]
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sub: SubSubCommand,
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},
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AnotherCommand,
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}
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// FIXME (@CreepySkeleton): current implementation requires us to
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// derive IntoApp here while we don't really need it
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#[derive(Clap)]
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#[clap(setting = AppSettings::InferSubcommands)]
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enum SubSubCommand {
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TestCommand,
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}
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assert!(Args::try_parse_from(&["test", "some-command", "test-command"]).is_ok());
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assert!(Args::try_parse_from(&["test", "some", "test-command"]).is_ok());
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assert!(Args::try_parse_from(&["test", "some-command", "test"]).is_ok());
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assert!(Args::try_parse_from(&["test", "some", "test"]).is_ok());
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}
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#[test]
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fn issue_324() {
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fn my_version() -> &'static str {
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"MY_VERSION"
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}
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#[derive(Clap)]
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#[clap(version = my_version())]
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struct Opt {
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#[clap(subcommand)]
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_cmd: Option<SubCommand>,
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}
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#[derive(Clap)]
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enum SubCommand {
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Start,
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}
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let help = get_long_help::<Opt>();
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assert!(help.contains("MY_VERSION"));
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}
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