Add structopt dependency in version 0.3.7

This patch series replaces argparse with structopt in the argument
handling code. As a first step, we need structopt as a dependency.

Import subrepo structopt/:structopt at efbdda4753592e27bc430fb01f7b9650b2f3174d
Import subrepo bitflags/:bitflags at 30668016aca6bd3b02c766e8347e0b4080d4c296
Import subrepo clap/:clap at 784524f7eb193e35f81082cc69454c8c21b948f7
Import subrepo heck/:heck at 093d56fbf001e1506e56dbfa38631d99b1066df1
Import subrepo proc-macro-error/:proc-macro-error at 6c4cfe79a622c5de8ae68557993542be46eacae2
Import subrepo proc-macro2/:proc-macro2 at d5d48eddca4566e5438e8a2cbed4a74e049544de
Import subrepo quote/:quote at 727436c6c137b20f0f34dde5d8fda2679b9747ad
Import subrepo rustversion/:rustversion at 0c5663313516263059ce9059ef81fc7a1cf655ca
Import subrepo syn-mid/:syn-mid at 5d3d85414a9e6674e1857ec22a87b96e04a6851a
Import subrepo syn/:syn at e87c27e87f6f4ef8919d0372bdb056d53ef0d8f3
Import subrepo textwrap/:textwrap at abcd618beae3f74841032aa5b53c1086b0a57ca2
Import subrepo unicode-segmentation/:unicode-segmentation at 637c9874c4fe0c205ff27787faf150a40295c6c3
Import subrepo unicode-width/:unicode-width at 3033826f8bf05e82724140a981d5941e48fce393
Import subrepo unicode-xid/:unicode-xid at 4baae9fffb156ba229665b972a9cd5991787ceb7

1 files changed, 74 insertions, 0 deletions

diff --git a/clap/src/args/any_arg.rs b/clap/src/args/any_arg.rs
new file mode 100644
index 0000000..eee5228
--- /dev/null
+++ b/clap/src/args/any_arg.rs
@@ -0,0 +1,74 @@
+// Std
+use std::rc::Rc;
+use std::fmt as std_fmt;
+use std::ffi::{OsStr, OsString};
+
+// Internal
+use args::settings::ArgSettings;
+use map::{self, VecMap};
+use 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, ArgSettings) -> bool;
+    fn set(&mut self, 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]>;
+    fn validator(&self) -> Option<&Rc<Fn(String) -> Result<(), String>>>;
+    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() }
+    fn validator(&self) -> Option<&Rc<Fn(String) -> Result<(), String>>> { (*self).validator() }
+    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() }
+}