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// Std
use std::{
ffi::{OsStr, OsString},
fmt as std_fmt,
rc::Rc,
};
// Internal
use crate::{
args::settings::ArgSettings,
map::{self, VecMap},
INTERNAL_ERROR_MSG,
};
#[doc(hidden)]
pub trait AnyArg<'n, 'e>: std_fmt::Display {
fn name(&self) -> &'n str;
fn overrides(&self) -> Option<&[&'e str]>;
fn aliases(&self) -> Option<Vec<&'e str>>;
fn requires(&self) -> Option<&[(Option<&'e str>, &'n str)]>;
fn blacklist(&self) -> Option<&[&'e str]>;
fn required_unless(&self) -> Option<&[&'e str]>;
fn is_set(&self, setting: ArgSettings) -> bool;
fn set(&mut self, setting: ArgSettings);
fn has_switch(&self) -> bool;
fn max_vals(&self) -> Option<u64>;
fn min_vals(&self) -> Option<u64>;
fn num_vals(&self) -> Option<u64>;
fn possible_vals(&self) -> Option<&[&'e str]>;
#[cfg_attr(feature = "cargo-clippy", allow(clippy::type_complexity))]
fn validator(&self) -> Option<&Rc<Fn(String) -> Result<(), String>>>;
#[cfg_attr(feature = "cargo-clippy", allow(clippy::type_complexity))]
fn validator_os(&self) -> Option<&Rc<Fn(&OsStr) -> Result<(), OsString>>>;
fn short(&self) -> Option<char>;
fn long(&self) -> Option<&'e str>;
fn val_delim(&self) -> Option<char>;
fn takes_value(&self) -> bool;
fn val_names(&self) -> Option<&VecMap<&'e str>>;
fn help(&self) -> Option<&'e str>;
fn long_help(&self) -> Option<&'e str>;
fn default_val(&self) -> Option<&'e OsStr>;
fn default_vals_ifs(&self) -> Option<map::Values<(&'n str, Option<&'e OsStr>, &'e OsStr)>>;
fn env<'s>(&'s self) -> Option<(&'n OsStr, Option<&'s OsString>)>;
fn longest_filter(&self) -> bool;
fn val_terminator(&self) -> Option<&'e str>;
}
pub trait DispOrder {
fn disp_ord(&self) -> usize;
}
impl<'n, 'e, 'z, T: ?Sized> AnyArg<'n, 'e> for &'z T
where
T: AnyArg<'n, 'e> + 'z,
{
fn name(&self) -> &'n str {
(*self).name()
}
fn overrides(&self) -> Option<&[&'e str]> {
(*self).overrides()
}
fn aliases(&self) -> Option<Vec<&'e str>> {
(*self).aliases()
}
fn requires(&self) -> Option<&[(Option<&'e str>, &'n str)]> {
(*self).requires()
}
fn blacklist(&self) -> Option<&[&'e str]> {
(*self).blacklist()
}
fn required_unless(&self) -> Option<&[&'e str]> {
(*self).required_unless()
}
fn is_set(&self, a: ArgSettings) -> bool {
(*self).is_set(a)
}
fn set(&mut self, _: ArgSettings) {
panic!("{}", INTERNAL_ERROR_MSG)
}
fn has_switch(&self) -> bool {
(*self).has_switch()
}
fn max_vals(&self) -> Option<u64> {
(*self).max_vals()
}
fn min_vals(&self) -> Option<u64> {
(*self).min_vals()
}
fn num_vals(&self) -> Option<u64> {
(*self).num_vals()
}
fn possible_vals(&self) -> Option<&[&'e str]> {
(*self).possible_vals()
}
#[cfg_attr(feature = "cargo-clippy", allow(clippy::type_complexity))]
fn validator(&self) -> Option<&Rc<Fn(String) -> Result<(), String>>> {
(*self).validator()
}
#[cfg_attr(feature = "cargo-clippy", allow(clippy::type_complexity))]
fn validator_os(&self) -> Option<&Rc<Fn(&OsStr) -> Result<(), OsString>>> {
(*self).validator_os()
}
fn short(&self) -> Option<char> {
(*self).short()
}
fn long(&self) -> Option<&'e str> {
(*self).long()
}
fn val_delim(&self) -> Option<char> {
(*self).val_delim()
}
fn takes_value(&self) -> bool {
(*self).takes_value()
}
fn val_names(&self) -> Option<&VecMap<&'e str>> {
(*self).val_names()
}
fn help(&self) -> Option<&'e str> {
(*self).help()
}
fn long_help(&self) -> Option<&'e str> {
(*self).long_help()
}
fn default_val(&self) -> Option<&'e OsStr> {
(*self).default_val()
}
fn default_vals_ifs(&self) -> Option<map::Values<(&'n str, Option<&'e OsStr>, &'e OsStr)>> {
(*self).default_vals_ifs()
}
fn env<'s>(&'s self) -> Option<(&'n OsStr, Option<&'s OsString>)> {
(*self).env()
}
fn longest_filter(&self) -> bool {
(*self).longest_filter()
}
fn val_terminator(&self) -> Option<&'e str> {
(*self).val_terminator()
}
}