1 files changed, 38 insertions, 46 deletions

diff --git a/vendor/xflags-macros/tests/it/help.rs b/vendor/xflags-macros/tests/it/help.rs
index 36a966485..f17062988 100644
--- a/vendor/xflags-macros/tests/it/help.rs
+++ b/vendor/xflags-macros/tests/it/help.rs
@@ -21,7 +21,10 @@ pub struct Sub {
 }
 
 impl Helpful {
-    pub const HELP: &'static str = Self::HELP_;
+    #[allow(dead_code)]
+    pub fn from_env_or_exit() -> Self {
+        Self::from_env_or_exit_()
+    }
 
     #[allow(dead_code)]
     pub fn from_env() -> xflags::Result<Self> {
@@ -35,6 +38,9 @@ impl Helpful {
 }
 
 impl Helpful {
+    fn from_env_or_exit_() -> Self {
+        Self::from_env_().unwrap_or_else(|err| err.exit())
+    }
     fn from_env_() -> xflags::Result<Self> {
         let mut p = xflags::rt::Parser::new_from_env();
         Self::parse_(&mut p)
@@ -47,68 +53,51 @@ impl Helpful {
 
 impl Helpful {
     fn parse_(p_: &mut xflags::rt::Parser) -> xflags::Result<Self> {
+        #![allow(non_snake_case)]
         let mut switch = Vec::new();
-
         let mut src = (false, Vec::new());
         let mut extra = (false, Vec::new());
+        let mut sub__flag = Vec::new();
 
-        let mut sub_ = None;
+        let mut state_ = 0u8;
         while let Some(arg_) = p_.pop_flag() {
             match arg_ {
-                Ok(flag_) => match flag_.as_str() {
-                    "--switch" | "-s" => switch.push(()),
+                Ok(flag_) => match (state_, flag_.as_str()) {
+                    (0 | 1, "--switch" | "-s") => switch.push(()),
+                    (0 | 1, "--help" | "-h") => return Err(p_.help(Self::HELP_)),
+                    (1, "--flag" | "-f") => sub__flag.push(()),
                     _ => return Err(p_.unexpected_flag(&flag_)),
                 },
-                Err(arg_) => {
-                    match arg_.to_str().unwrap_or("") {
-                        "sub" => {
-                            sub_ = Some(HelpfulCmd::Sub(Sub::parse_(p_)?));
-                            break;
+                Err(arg_) => match (state_, arg_.to_str().unwrap_or("")) {
+                    (0, "sub") => state_ = 1,
+                    (0, _) => {
+                        if let (done_ @ false, buf_) = &mut src {
+                            buf_.push(arg_.into());
+                            *done_ = true;
+                            continue;
                         }
-                        _ => (),
-                    }
-                    if let (done_ @ false, buf_) = &mut src {
-                        buf_.push(arg_.into());
-                        *done_ = true;
-                        continue;
-                    }
-                    if let (done_ @ false, buf_) = &mut extra {
-                        buf_.push(p_.value_from_str::<String>("extra", arg_)?);
-                        *done_ = true;
-                        continue;
+                        if let (done_ @ false, buf_) = &mut extra {
+                            buf_.push(p_.value_from_str::<String>("extra", arg_)?);
+                            *done_ = true;
+                            continue;
+                        }
+                        return Err(p_.unexpected_arg(arg_));
                     }
-                    return Err(p_.unexpected_arg(arg_));
-                }
+                    _ => return Err(p_.unexpected_arg(arg_)),
+                },
             }
         }
-        Ok(Self {
+        Ok(Helpful {
+            switch: p_.required("--switch", switch)?,
             src: p_.optional("src", src.1)?,
             extra: p_.optional("extra", extra.1)?,
-
-            switch: p_.required("--switch", switch)?,
-            subcommand: p_.subcommand(sub_)?,
+            subcommand: match state_ {
+                1 => HelpfulCmd::Sub(Sub { flag: p_.optional("--flag", sub__flag)?.is_some() }),
+                _ => return Err(p_.subcommand_required()),
+            },
         })
     }
 }
-
-impl Sub {
-    fn parse_(p_: &mut xflags::rt::Parser) -> xflags::Result<Self> {
-        let mut flag = Vec::new();
-
-        while let Some(arg_) = p_.pop_flag() {
-            match arg_ {
-                Ok(flag_) => match flag_.as_str() {
-                    "--flag" | "-f" => flag.push(()),
-                    _ => return Err(p_.unexpected_flag(&flag_)),
-                },
-                Err(arg_) => {
-                    return Err(p_.unexpected_arg(arg_));
-                }
-            }
-        }
-        Ok(Self { flag: p_.optional("--flag", flag)?.is_some() })
-    }
-}
 impl Helpful {
     const HELP_: &'static str = "\
 helpful
@@ -131,6 +120,9 @@ OPTIONS:
     -s, --switch
       And a switch.
 
+    -h, --help
+      Prints help information.
+
 SUBCOMMANDS:
 
 helpful sub