Trait Args

pub trait Args: Sized + FromArgMatches {
    // Required methods
    fn augment_args(cmd: Command) -> Command;
    fn augment_args_for_update(cmd: Command) -> Command;

    // Provided method
    fn group_id() -> Option<Id> { ... }
}

Parse a set of arguments into a user-defined container.

Implementing this trait lets a parent container delegate argument parsing behavior to Self. with:

• #[command(flatten)] args: ChildArgs: Attribute can only be used with struct fields that impl Args.
• Variant(ChildArgs): No attribute is used with enum variants that impl Args.

NOTE: Deriving requires the derive feature flag

Required Methods

fn augment_args(cmd: Command) -> Command

Append to Command so it can instantiate Self.

See also CommandFactory.

fn augment_args_for_update(cmd: Command) -> Command

Append to Command so it can update self.

This is used to implement #[command(flatten)]

See also CommandFactory.

Provided Methods

fn group_id() -> Option<Id>

Report the ArgGroup::id for this set of arguments

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Args for LogOpts

fn group_id() -> Option<Id>

fn augment_args<'b>(__clap_app: Command) -> Command

fn augment_args_for_update<'b>(__clap_app: Command) -> Command

impl<T> Args for Box<T>

where T: Args,

fn augment_args(cmd: Command) -> Command

fn augment_args_for_update(cmd: Command) -> Command

Implementors

impl Args for ClusterRatings

impl Args for ScanRatings

impl Args for ScanReviews

impl Args for Cluster

impl Args for Extract

impl Args for AuthorGender

impl Args for ClusterAuthors

impl Args for ExtractBooks

impl Args for HashCmd

impl Args for ClusterBooks

impl Args for CollectISBNs

impl Args for ExtractGraph

impl Args for FilterMARC

impl Args for FilterSpec

impl Args for OutputSpec

impl Args for CICommand

impl Args for ScanInput

impl Args for Goodreads

impl Args for IndexNames

impl Args for Kcore

impl Args for LinkISBNIds

impl Args for Input

impl Args for OpenLib

impl Args for PQInfo

impl Args for ScanMARC

impl Args for IntegrationStats

impl Args for AmazonCommandWrapper

impl Args for BXCommandWrapper

impl Args for CLI

impl Args for ClusterCommandWrapper