Trait Args 

pub trait Args<T> {
    // Required methods
    fn has_help(&self) -> bool;
    fn all(&self) -> Vec<T>;
}

Abstraction over command-line argument collections for help detection and access.

Type Parameters

• T The type of individual arguments, typically string-like (e.g., String, &str).

Rationale

• Enables polymorphic argument handling without coupling to specific collection types.
• Centralizes help flag detection logic for consistency across binaries.
• Supports both owned and borrowed argument slices for flexibility.

Performance

• has_help performs a linear scan; suitable for small argument lists (typical CLI usage).
• all clones arguments; use borrowed types (T = &str) to avoid allocation overhead.

Required Methods

fn has_help(&self) -> bool

Checks if the help flag (--help) is present in the arguments.

Rationale

• Standardized help detection avoids ad-hoc string comparisons in binaries.
• Case-sensitive matching aligns with common CLI conventions.

fn all(&self) -> Vec<T>

Returns a copy of all arguments.

Rationale

• Provides uniform access to arguments regardless of underlying storage.
• Cloning ensures caller ownership; consider T = &str for zero-copy variants.

Implementations on Foreign Types

impl Args<String> for Arguments

fn has_help(&self) -> bool

fn all(&self) -> Vec<String>

impl<T: AsRef<str> + Clone> Args<T> for Vec<T>

fn has_help(&self) -> bool

fn all(&self) -> Self

Implementors