1863: A little cleanup r=pksunkara a=CreepySkeleton



Co-authored-by: CreepySkeleton <creepy-skeleton@yandex.ru>
This commit is contained in:
bors[bot] 2020-04-25 19:25:07 +00:00 committed by GitHub
commit 5f72b0b083
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
7 changed files with 116 additions and 173 deletions

View file

@ -10,6 +10,7 @@ use std::env;
use std::ffi::OsString;
use std::fmt;
use std::io::{self, BufRead, Write};
use std::ops::Index;
use std::path::Path;
use std::process;
@ -26,7 +27,7 @@ use crate::parse::{ArgMatcher, ArgMatches, Input, Parser};
use crate::util::{termcolor::ColorChoice, Id, Key};
use crate::INTERNAL_ERROR_MSG;
// FIXME (@CreepySkeleton): some of this variants are never constructed
// FIXME (@CreepySkeleton): some of these variants are never constructed
#[derive(Clone, Debug, PartialEq, Eq)]
#[allow(unused)]
pub(crate) enum Propagation {
@ -2076,6 +2077,14 @@ impl<'b> App<'b> {
}
}
impl<'b> Index<&'_ Id> for App<'b> {
type Output = Arg<'b>;
fn index(&self, key: &'_ Id) -> &Self::Output {
self.find(key).expect(INTERNAL_ERROR_MSG)
}
}
#[cfg(feature = "yaml")]
impl<'a> From<&'a Yaml> for App<'a> {
#[allow(clippy::cognitive_complexity)]

View file

@ -620,7 +620,7 @@ macro_rules! groups_for_arg {
debug!("groups_for_arg: name={:?}", $grp);
$app.groups
.iter()
.filter(|grp| grp.args.iter().any(|a| *a == $grp))
.filter(|grp| grp.args.iter().any(|a| a == $grp))
.map(|grp| grp.id.clone())
}};
}

View file

@ -1,6 +1,8 @@
use crate::build::Arg;
use crate::util::Id;
use crate::INTERNAL_ERROR_MSG;
use std::ffi::{OsStr, OsString};
use std::ops::Index;
#[derive(PartialEq, Debug, Clone)]
pub(crate) struct Key {
@ -123,6 +125,14 @@ impl<'b> MKeyMap<'b> {
}
}
impl<'b> Index<&'_ KeyType> for MKeyMap<'b> {
type Output = Arg<'b>;
fn index(&self, key: &'_ KeyType) -> &Self::Output {
self.get(key).expect(INTERNAL_ERROR_MSG)
}
}
fn _get_keys(arg: &Arg) -> Vec<KeyType> {
if let Some(index) = arg.index {
return vec![KeyType::Position(index)];

View file

@ -185,7 +185,7 @@ impl<'b, 'c, 'z> Usage<'b, 'c, 'z> {
.filter(|pos| !pos.is_set(ArgSettings::Last))
{
debug!("Usage::get_args_tag:iter:{}", pos.name);
for grp_s in groups_for_arg!(self.p.app, pos.id) {
for grp_s in groups_for_arg!(self.p.app, &pos.id) {
debug!("Usage::get_args_tag:iter:{:?}:iter:{:?}", pos.name, grp_s);
// if it's part of a required group we don't want to count it
if self
@ -281,7 +281,7 @@ impl<'b, 'c, 'z> Usage<'b, 'c, 'z> {
continue;
}
}
for grp_s in groups_for_arg!(self.p.app, f.id) {
for grp_s in groups_for_arg!(self.p.app, &f.id) {
debug!("Usage::needs_flags_tag:iter:iter: grp_s={:?}", grp_s);
if self
.p

View file

@ -17,10 +17,10 @@ where
let mut candidates: Vec<(f64, String)> = possible_values
.into_iter()
.map(|pv| (strsim::jaro_winkler(v, pv.as_ref()), pv.as_ref().to_owned()))
.filter(|(confidence, _pv)| *confidence > 0.8)
.filter(|(confidence, _)| *confidence > 0.8)
.collect();
candidates.sort_by(|a, b| a.0.partial_cmp(&b.0).unwrap_or(Ordering::Equal));
candidates.into_iter().map(|(_confidence, pv)| pv).collect()
candidates.into_iter().map(|(_, pv)| pv).collect()
}
#[cfg(not(feature = "suggestions"))]

View file

@ -2,7 +2,6 @@
use std::cell::Cell;
use std::ffi::{OsStr, OsString};
use std::io::Write;
use std::mem;
// Internal
use crate::build::app::Propagation;
@ -52,12 +51,8 @@ where
impl Input {
pub(crate) fn next(&mut self, new: Option<&[&str]>) -> Option<(&OsStr, Option<&OsStr>)> {
if new.is_some() {
let mut new_items: Vec<OsString> = new
.expect(INTERNAL_ERROR_MSG)
.iter()
.map(OsString::from)
.collect();
if let Some(new) = new {
let mut new_items: Vec<OsString> = new.iter().map(OsString::from).collect();
for i in self.cursor..self.items.len() {
new_items.push(self.items[i].clone());
@ -108,9 +103,8 @@ where
.args
.iter()
.filter(|a| a.settings.is_set(ArgSettings::Required))
.map(|a| a.id.clone())
{
reqs.insert(a);
reqs.insert(a.id.clone());
}
Parser {
@ -131,21 +125,20 @@ where
// positional arguments to verify there are no gaps (i.e. supplying an index of 1 and 3
// but no 2)
let highest_idx = *self
let highest_idx = self
.app
.args
.keys
.iter()
.map(|x| &x.key)
.filter_map(|x| {
if let KeyType::Position(n) = x {
if let KeyType::Position(n) = x.key {
Some(n)
} else {
None
}
})
.max()
.unwrap_or(&0);
.unwrap_or(0);
//_highest_idx(&self.positionals);
@ -155,13 +148,7 @@ where
.keys
.iter()
.map(|x| &x.key)
.filter(|x| {
if let KeyType::Position(_) = x {
true
} else {
false
}
})
.filter(|x| x.is_position())
.count();
assert!(
@ -185,17 +172,8 @@ where
// We can't pass the closure (it.next()) to the macro directly because each call to
// find() (iterator, not macro) gets called repeatedly.
let last = self
.app
.args
.get(&KeyType::Position(highest_idx))
.expect(INTERNAL_ERROR_MSG);
let second_to_last = self
.app
.args
.get(&KeyType::Position(highest_idx - 1))
.expect(INTERNAL_ERROR_MSG);
let last = &self.app.args[&KeyType::Position(highest_idx)];
let second_to_last = &self.app.args[&KeyType::Position(highest_idx - 1)];
// Either the final positional is required
// Or the second to last has a terminator or .last(true) set
@ -220,13 +198,9 @@ where
);
// Next we check how many have both Multiple and not a specific number of values set
let count = positionals!(self.app).fold(0, |acc, p| {
if p.settings.is_set(ArgSettings::MultipleValues) && p.num_vals.is_none() {
acc + 1
} else {
acc
}
});
let count = positionals!(self.app)
.filter(|p| p.settings.is_set(ArgSettings::MultipleValues) && p.num_vals.is_none())
.count();
let ok = count <= 1
|| (last.is_set(ArgSettings::Last)
&& last.is_set(ArgSettings::MultipleValues)
@ -301,11 +275,10 @@ where
}
}
assert!(
positionals!(self.app).fold(0, |acc, p| if p.is_set(ArgSettings::Last) {
acc + 1
} else {
acc
}) < 2,
positionals!(self.app)
.filter(|p| p.is_set(ArgSettings::Last))
.count()
< 2,
"Only one positional argument may have last(true) set. Found two."
);
if positionals!(self.app)
@ -328,10 +301,10 @@ where
debug!("Parser::_build");
//I wonder whether this part is even needed if we insert all Args using make_entries
let mut key: Vec<(KeyType, usize)> = Vec::new();
let mut key = Vec::new();
let mut counter = 0;
for (i, a) in self.app.args.args.iter_mut().enumerate() {
if a.index == None && a.short == None && a.long == None {
if a.index == None && a.is_positional() {
counter += 1;
a.index = Some(counter);
key.push((KeyType::Position(counter), i));
@ -343,12 +316,8 @@ where
let idx = self.required.insert(a.id.clone());
// If the arg is required, add all it's requirements to master required list
if let Some(ref areqs) = a.requires {
for name in areqs
.iter()
.filter(|(val, _)| val.is_none())
.map(|(_, name)| name.clone())
{
self.required.insert_child(idx, name);
for (_, name) in areqs.iter().filter(|(val, _)| val.is_none()) {
self.required.insert_child(idx, name.clone());
}
}
}
@ -369,15 +338,10 @@ where
.args
.keys
.iter()
.map(|x| &x.key)
.filter(|x| x.is_position())
.filter(|x| x.key.is_position())
.count())
}) && positionals!(self.app).last().map_or(false, |p_name| {
!self
.app
.find(&p_name.id)
.expect(INTERNAL_ERROR_MSG)
.is_set(ArgSettings::Last)
!self.app[&p_name.id].is_set(ArgSettings::Last)
}) {
self.app.settings.set(AS::LowIndexMultiplePositional);
}
@ -445,7 +409,7 @@ where
self.unset(AS::ValidNegNumFound);
// Is this a new argument, or values from a previous option?
let starts_new_arg = self.is_new_arg(&arg_os, needs_val_of.clone());
let starts_new_arg = self.is_new_arg(&arg_os, &needs_val_of);
if !self.is_set(AS::TrailingValues) && arg_os == "--" && starts_new_arg {
debug!("Parser::get_matches_with: setting TrailingVals=true");
@ -467,9 +431,7 @@ where
sc_name
);
if sc_name.is_some() {
let sc_name = sc_name.expect(INTERNAL_ERROR_MSG);
if let Some(sc_name) = sc_name {
if sc_name == "help" && !self.is_set(AS::NoAutoHelp) {
self.parse_help_subcommand(it.remaining())?;
}
@ -530,11 +492,11 @@ where
_ => (),
}
}
} else if let ParseResult::Opt(name) = needs_val_of {
} else if let ParseResult::Opt(id) = needs_val_of {
// Check to see if parsing a value from a previous arg
let arg = self.app.find(&name).expect(INTERNAL_ERROR_MSG);
// get the option so we can check the settings
needs_val_of = self.add_val_to_arg(arg, &arg_os, matcher)?;
needs_val_of = self.add_val_to_arg(&self.app[&id], &arg_os, matcher)?;
// get the next value from the iterator
continue;
}
@ -564,14 +526,7 @@ where
.args
.keys
.iter()
.map(|x| &x.key)
.filter(|x| {
if let KeyType::Position(_) = x {
true
} else {
false
}
})
.filter(|x| x.key.is_position())
.count();
let is_second_to_last = positional_count > 1 && (pos_counter == (positional_count - 1));
@ -608,7 +563,7 @@ where
let n = ArgStr::new(n);
let sc_match = { self.possible_subcommand(&n).is_some() };
if self.is_new_arg(&n, needs_val_of.clone())
if self.is_new_arg(&n, &needs_val_of)
|| sc_match
|| !suggestions::did_you_mean(&n.to_string_lossy(), sc_names!(self.app))
.is_empty()
@ -631,14 +586,7 @@ where
.args
.keys
.iter()
.map(|x| &x.key)
.filter(|x| {
if let KeyType::Position(_) = x {
true
} else {
false
}
})
.filter(|x| x.key.is_position())
.count();
}
@ -647,7 +595,7 @@ where
.args
.args
.iter()
.filter(|a| a.short.is_none() && a.long.is_none())
.filter(|a| a.is_positional())
.find(|p| p.index == Some(pos_counter as u64))
{
if p.is_set(ArgSettings::Last) && !self.is_set(AS::TrailingValues) {
@ -667,18 +615,17 @@ where
.args
.keys
.iter()
.map(|x| &x.key)
.filter(|x| x.is_position())
.filter(|x| x.key.is_position())
.count())
{
self.app.settings.set(AS::TrailingValues);
}
self.seen.push(p.id.clone());
let _ = self.add_val_to_arg(p, &arg_os, matcher)?;
self.add_val_to_arg(p, &arg_os, matcher)?;
matcher.inc_occurrence_of(&p.id);
for grp in groups_for_arg!(self.app, p.id) {
for grp in groups_for_arg!(self.app, &p.id) {
matcher.inc_occurrence_of(&grp);
}
@ -764,13 +711,11 @@ where
}
if let Some(ref pos_sc_name) = subcmd_name {
let sc_name = {
find_subcmd!(self.app, *pos_sc_name)
.expect(INTERNAL_ERROR_MSG)
.name
.clone()
};
self.parse_subcommand(&*sc_name, matcher, it)?;
let sc_name = find_subcmd!(self.app, *pos_sc_name)
.expect(INTERNAL_ERROR_MSG)
.name
.clone();
self.parse_subcommand(&sc_name, matcher, it)?;
} else if self.is_set(AS::SubcommandRequired) {
let bn = self.app.bin_name.as_ref().unwrap_or(&self.app.name);
return Err(ClapError::missing_subcommand(
@ -829,7 +774,7 @@ where
fn maybe_inc_pos_counter(&self, pos_counter: &mut usize, id: &Id) {
debug!("Parser::maybe_inc_pos_counter: arg = {:?}", id);
let arg = self.app.find(id).expect(INTERNAL_ERROR_MSG);
let arg = &self.app[id];
debug!("Parser::maybe_inc_pos_counter: is it positional?");
// will be incremented by other means.
@ -839,7 +784,7 @@ where
}
debug!("No");
for group in groups_for_arg!(self.app, arg.id.clone()) {
for group in groups_for_arg!(self.app, &arg.id) {
debug!("Parser::maybe_inc_pos_counter: group={:?}", group);
let group = self.app.groups.iter().find(|g| g.id == group);
@ -847,8 +792,7 @@ where
if let Some(group) = group {
for arg in group.args.iter() {
debug!("Parser::maybe_inc_pos_counter: arg={:?}", arg);
let arg = self.app.find(arg).expect(INTERNAL_ERROR_MSG);
if arg.is_positional() {
if self.app[arg].is_positional() {
debug!("Parser::maybe_inc_pos_counter: Incrementing counter!");
*pos_counter += 1;
}
@ -868,11 +812,7 @@ where
return None;
}
if !self.is_set(AS::InferSubcommands) {
if let Some(sc) = find_subcmd!(self.app, arg_os) {
return Some(&sc.name);
}
} else {
if self.is_set(AS::InferSubcommands) {
let v = sc_names!(self.app)
.filter(|s| starts(s, &*arg_os))
.collect::<Vec<_>>();
@ -886,6 +826,8 @@ where
return Some(sc);
}
}
} else if let Some(sc) = find_subcmd!(self.app, arg_os) {
return Some(&sc.name);
}
None
@ -898,7 +840,7 @@ where
let mut bin_name = self.app.bin_name.as_ref().unwrap_or(&self.app.name).clone();
let mut sc = {
// @TODO @perf: cloning all these Apps ins't great, but since it's just displaying the
// @TODO @perf: cloning all these Apps isn't great, but since it's just displaying the
// help message there are bigger fish to fry
let mut sc = self.app.clone();
@ -919,7 +861,7 @@ where
if i == cmds.len() - 1 {
break;
}
} else if let Some(mut c) = find_subcmd_cloned!(sc, &*cmd.to_string_lossy()) {
} else if let Some(mut c) = find_subcmd_cloned!(sc, &cmd.to_string_lossy()) {
c._build();
sc = c;
@ -934,7 +876,7 @@ where
)?);
}
bin_name = format!("{} {}", bin_name, &*sc.name);
bin_name = format!("{} {}", bin_name, &sc.name);
}
sc
@ -961,7 +903,7 @@ where
Err(parser.help_err(false))
}
fn is_new_arg(&mut self, arg_os: &ArgStr<'_>, needs_val_of: ParseResult) -> bool {
fn is_new_arg(&mut self, arg_os: &ArgStr<'_>, needs_val_of: &ParseResult) -> bool {
debug!("Parser::is_new_arg: {:?}:{:?}", arg_os, needs_val_of);
let app_wide_settings = if self.is_set(AS::AllowLeadingHyphen) {
@ -980,14 +922,10 @@ where
};
let arg_allows_tac = match needs_val_of {
ParseResult::Opt(name) => {
let o = self.app.find(&name).expect(INTERNAL_ERROR_MSG);
o.is_set(ArgSettings::AllowHyphenValues) || app_wide_settings
}
ParseResult::Pos(name) => {
let p = self.app.find(&name).expect(INTERNAL_ERROR_MSG);
p.is_set(ArgSettings::AllowHyphenValues) || app_wide_settings
ParseResult::Opt(name) | ParseResult::Pos(name) => {
app_wide_settings || self.app[name].is_set(ArgSettings::AllowHyphenValues)
}
ParseResult::ValuesDone(..) => return true,
_ => false,
};
@ -1042,7 +980,8 @@ where
mid_string.push_str(" ");
if let Some(id) = find_subcmd!(self.app, sc_name).map(|x| x.id.clone()) {
if let Some(x) = find_subcmd!(self.app, sc_name) {
let id = x.id.clone();
self.app._propagate(Propagation::To(id));
}
@ -1151,7 +1090,7 @@ where
};
self.app.long_about.is_some()
|| self.app.args.args.iter().any(|f| should_long(&f))
|| self.app.args.args.iter().any(should_long)
|| self.app.subcommands.iter().any(|s| s.long_about.is_some())
}
@ -1339,7 +1278,7 @@ where
matcher.inc_occurrence_of(&opt.id);
// Increment or create the group "args"
for grp in groups_for_arg!(self.app, opt.id) {
for grp in groups_for_arg!(self.app, &opt.id) {
matcher.inc_occurrence_of(&grp);
}
@ -1414,7 +1353,7 @@ where
matcher.add_index_to(&arg.id, self.cur_idx.get());
// Increment or create the group "args"
for grp in groups_for_arg!(self.app, arg.id) {
for grp in groups_for_arg!(self.app, &arg.id) {
matcher.add_val_to(&grp, v.to_os_string());
}
@ -1430,7 +1369,7 @@ where
matcher.inc_occurrence_of(&flag.id);
matcher.add_index_to(&flag.id, self.cur_idx.get());
// Increment or create the group "args"
for grp in groups_for_arg!(self.app, flag.id) {
for grp in groups_for_arg!(self.app, &flag.id) {
matcher.inc_occurrence_of(&grp);
}
@ -1495,11 +1434,9 @@ where
continue;
}
ma.occurs = 1;
if !ma.vals.is_empty() {
// This avoids a clone
let mut v = vec![ma.vals.pop().expect(INTERNAL_ERROR_MSG)];
mem::swap(&mut v, &mut ma.vals);
}
let len = ma.vals.len().saturating_sub(1);
ma.vals.drain(0..len);
}
}
@ -1647,7 +1584,7 @@ where
.args
.get(&KeyType::Long(OsString::from(name.0.clone())))
{
for g in groups_for_arg!(self.app, opt.id) {
for g in groups_for_arg!(self.app, &opt.id) {
matcher.inc_occurrence_of(&g);
}
matcher.insert(&opt.id);
@ -1657,11 +1594,9 @@ where
let used: Vec<Id> = matcher
.arg_names()
.filter(|n| {
if let Some(a) = self.app.find(n) {
self.app.find(n).map_or(true, |a| {
!(self.required.contains(&a.id) || a.is_set(ArgSettings::Hidden))
} else {
true
}
})
})
.cloned()
.collect();

View file

@ -40,7 +40,7 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
debug!("Validator::validate: needs_val_of={:?}", a);
self.validate_required(matcher)?;
let o = self.p.app.find(&a).expect(INTERNAL_ERROR_MSG);
let o = &self.p.app[&a];
reqs_validated = true;
let should_err = if let Some(v) = matcher.0.args.get(&o.id) {
v.vals.is_empty() && !(o.min_vals.is_some() && o.min_vals.unwrap() == 0)
@ -100,7 +100,7 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
debug!("Validator::validate_arg_values: possible_vals={:?}", p_vals);
let val_str = val.to_string_lossy();
let ok = if arg.is_set(ArgSettings::IgnoreCase) {
p_vals.iter().any(|pv| pv.eq_ignore_ascii_case(&*val_str))
p_vals.iter().any(|pv| pv.eq_ignore_ascii_case(&val_str))
} else {
p_vals.contains(&&*val_str)
};
@ -108,11 +108,9 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
let used: Vec<Id> = matcher
.arg_names()
.filter(|&n| {
if let Some(a) = self.p.app.find(n) {
!(self.p.required.contains(&a.id) || a.is_set(ArgSettings::Hidden))
} else {
true
}
self.p.app.find(n).map_or(true, |a| {
!(a.is_set(ArgSettings::Hidden) || self.p.required.contains(&a.id))
})
})
.cloned()
.collect();
@ -189,10 +187,10 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
let c_with = matcher
.arg_names()
.find(|x| x != &first && args_in_group.contains(x))
.map(|x| self.p.app.find(x).expect(INTERNAL_ERROR_MSG).to_string());
.map(|x| self.p.app[x].to_string());
debug!("Validator::build_conflict_err: c_with={:?}:group", c_with);
return Err(Error::argument_conflict(
self.p.app.find(first).expect(INTERNAL_ERROR_MSG),
&self.p.app[first],
c_with,
&*usg,
self.p.app.color(),
@ -204,11 +202,9 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
fn validate_conflicts(&mut self, matcher: &mut ArgMatcher) -> ClapResult<()> {
debug!("Validator::validate_conflicts");
let validate_result = self.validate_exclusive(matcher);
if validate_result.is_err() {
return validate_result;
}
self.validate_exclusive(matcher)?;
self.gather_conflicts(matcher);
for name in self.c.iter() {
debug!("Validator::validate_conflicts:iter:{:?}", name);
let mut should_err = false;
@ -229,11 +225,10 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
.count()
> 1;
let conf_with_arg = if let Some(ref c) = g.conflicts {
c.iter().any(|x| matcher.contains(x))
} else {
false
};
let conf_with_arg = g
.conflicts
.as_ref()
.map_or(false, |c| c.iter().any(|x| matcher.contains(x)));
let arg_conf_with_gr = matcher
.arg_names()
@ -300,12 +295,11 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
}
}
// Now we need to know which groups this arg was a memeber of, to add all other
// Now we need to know which groups this arg was a member of, to add all other
// args in that group to the conflicts, as well as any args those args conflict
// with
// // FIXME: probably no need to clone the id here. Review the macro
for grp in groups_for_arg!(self.p.app, name.clone()) {
for grp in groups_for_arg!(self.p.app, name) {
if let Some(g) = self
.p
.app
@ -477,15 +471,13 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
) -> ClapResult<()> {
debug!("Validator::validate_arg_requires:{:?}", a.name);
if let Some(ref a_reqs) = a.requires {
for (val, name) in a_reqs.iter().filter(|(val, _)| val.is_some()) {
let missing_req =
|v| v == val.expect(INTERNAL_ERROR_MSG) && !matcher.contains(&name);
if ma.vals.iter().any(missing_req) {
return self.missing_required_error(matcher, Some(&a.id));
}
}
for (_, name) in a_reqs.iter().filter(|(val, _)| val.is_none()) {
if !matcher.contains(&name) {
for (val, name) in a_reqs.iter() {
if let Some(val) = val {
let missing_req = |v| v == val && !matcher.contains(&name);
if ma.vals.iter().any(missing_req) {
return self.missing_required_error(matcher, Some(&a.id));
}
} else if !matcher.contains(&name) {
return self.missing_required_error(matcher, Some(&name));
}
}
@ -593,8 +585,7 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
($how:ident, $_self:expr, $a:ident, $m:ident) => {{
$a.r_unless
.as_ref()
.map(|ru| !ru.iter().$how(|n| $m.contains(n)))
.unwrap_or(false)
.map_or(false, |ru| !ru.iter().$how(|n| $m.contains(n)))
}};
}
if a.is_set(ArgSettings::RequiredUnlessAll) {
@ -629,12 +620,10 @@ impl<'b, 'c, 'z> Validator<'b, 'c, 'z> {
let used: Vec<Id> = matcher
.arg_names()
.filter(|&n| {
if let Some(a) = self.p.app.find(n) {
!(self.p.required.contains(&a.id) || a.is_set(ArgSettings::Hidden))
} else {
true
}
.filter(|n| {
self.p.app.find(n).map_or(true, |a| {
!(a.is_set(ArgSettings::Hidden) || self.p.required.contains(&a.id))
})
})
.cloned()
.chain(incl.cloned())