Struct clap::SubCommand

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pub struct SubCommand<'a> { /* private fields */ }
Expand description

The abstract representation of a command line subcommand.

This struct describes all the valid options of the subcommand for the program. Subcommands are essentially “sub-Apps” and contain all the same possibilities (such as their own arguments, subcommands, and settings).

§Examples

App::new("myprog")
    .subcommand(
        SubCommand::with_name("config")
            .about("Used for configuration")
            .arg(Arg::with_name("config_file")
                .help("The configuration file to use")
                .index(1)))

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impl<'a> SubCommand<'a>

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pub fn with_name<'b>(name: &str) -> App<'a, 'b>

Creates a new instance of a subcommand requiring a name. The name will be displayed to the user when they print version or help and usage information.

§Examples
App::new("myprog")
    .subcommand(
        SubCommand::with_name("config"))

Trait Implementations§

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impl<'a> Clone for SubCommand<'a>

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fn clone(&self) -> SubCommand<'a>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> Debug for SubCommand<'a>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> RefUnwindSafe for SubCommand<'a>

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impl<'a> Send for SubCommand<'a>

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impl<'a> Sync for SubCommand<'a>

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impl<'a> Unpin for SubCommand<'a>

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impl<'a> UnwindSafe for SubCommand<'a>

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.