From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:13 +0200
Subject: Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/clap/src/builder/arg_settings.rs | 145 ++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 vendor/clap/src/builder/arg_settings.rs

(limited to 'vendor/clap/src/builder/arg_settings.rs')

diff --git a/vendor/clap/src/builder/arg_settings.rs b/vendor/clap/src/builder/arg_settings.rs
new file mode 100644
index 000000000..0f63e4396
--- /dev/null
+++ b/vendor/clap/src/builder/arg_settings.rs
@@ -0,0 +1,145 @@
+// Std
+use std::ops::BitOr;
+
+// Third party
+use bitflags::bitflags;
+
+#[allow(unused)]
+use crate::Arg;
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub(crate) struct ArgFlags(Flags);
+
+impl Default for ArgFlags {
+    fn default() -> Self {
+        Self::empty()
+    }
+}
+
+/// Various settings that apply to arguments and may be set, unset, and checked via getter/setter
+/// methods [`Arg::setting`], [`Arg::unset_setting`], and [`Arg::is_set`]. This is what the
+/// [`Arg`] methods which accept a `bool` use internally.
+///
+/// [`Arg`]: crate::Arg
+/// [`Arg::setting`]: crate::Arg::setting()
+/// [`Arg::unset_setting`]: crate::Arg::unset_setting()
+/// [`Arg::is_set`]: crate::Arg::is_set()
+#[derive(Debug, PartialEq, Copy, Clone)]
+#[non_exhaustive]
+pub(crate) enum ArgSettings {
+    Required,
+    Global,
+    Hidden,
+    NextLineHelp,
+    HidePossibleValues,
+    AllowHyphenValues,
+    AllowNegativeNumbers,
+    RequireEquals,
+    Last,
+    TrailingVarArg,
+    HideDefaultValue,
+    IgnoreCase,
+    #[cfg(feature = "env")]
+    HideEnv,
+    #[cfg(feature = "env")]
+    HideEnvValues,
+    HiddenShortHelp,
+    HiddenLongHelp,
+    Exclusive,
+}
+
+bitflags! {
+    struct Flags: u32 {
+        const REQUIRED         = 1;
+        const GLOBAL           = 1 << 3;
+        const HIDDEN           = 1 << 4;
+        const TRAILING_VARARG  = 1 << 5;
+        const ALLOW_NEG_NUMS   = 1 << 6;
+        const NEXT_LINE_HELP   = 1 << 7;
+        const DELIM_NOT_SET    = 1 << 10;
+        const HIDE_POS_VALS    = 1 << 11;
+        const ALLOW_TAC_VALS   = 1 << 12;
+        const REQUIRE_EQUALS   = 1 << 13;
+        const LAST             = 1 << 14;
+        const HIDE_DEFAULT_VAL = 1 << 15;
+        const CASE_INSENSITIVE = 1 << 16;
+        #[cfg(feature = "env")]
+        const HIDE_ENV_VALS    = 1 << 17;
+        const HIDDEN_SHORT_H   = 1 << 18;
+        const HIDDEN_LONG_H    = 1 << 19;
+        #[cfg(feature = "env")]
+        const HIDE_ENV         = 1 << 21;
+        const EXCLUSIVE        = 1 << 23;
+        const NO_OP            = 0;
+    }
+}
+
+impl_settings! { ArgSettings, ArgFlags,
+    Required => Flags::REQUIRED,
+    Global => Flags::GLOBAL,
+    Hidden => Flags::HIDDEN,
+    NextLineHelp => Flags::NEXT_LINE_HELP,
+    HidePossibleValues => Flags::HIDE_POS_VALS,
+    AllowHyphenValues => Flags::ALLOW_TAC_VALS,
+    AllowNegativeNumbers => Flags::ALLOW_NEG_NUMS,
+    RequireEquals => Flags::REQUIRE_EQUALS,
+    Last => Flags::LAST,
+    TrailingVarArg => Flags::TRAILING_VARARG,
+    IgnoreCase => Flags::CASE_INSENSITIVE,
+    #[cfg(feature = "env")]
+    HideEnv => Flags::HIDE_ENV,
+    #[cfg(feature = "env")]
+    HideEnvValues => Flags::HIDE_ENV_VALS,
+    HideDefaultValue => Flags::HIDE_DEFAULT_VAL,
+    HiddenShortHelp => Flags::HIDDEN_SHORT_H,
+    HiddenLongHelp => Flags::HIDDEN_LONG_H,
+    Exclusive => Flags::EXCLUSIVE
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::Arg;
+
+    #[test]
+    fn setting() {
+        let m = Arg::new("setting").setting(ArgSettings::Required);
+        assert!(m.is_required_set());
+    }
+
+    #[test]
+    fn unset_setting() {
+        let m = Arg::new("unset_setting").setting(ArgSettings::Required);
+        assert!(m.is_required_set());
+
+        let m = m.unset_setting(ArgSettings::Required);
+        assert!(!m.is_required_set(), "{:#?}", m);
+    }
+
+    #[test]
+    fn setting_bitor() {
+        let m = Arg::new("setting_bitor")
+            .setting(ArgSettings::Required | ArgSettings::Hidden | ArgSettings::Last);
+
+        assert!(m.is_required_set());
+        assert!(m.is_hide_set());
+        assert!(m.is_last_set());
+    }
+
+    #[test]
+    fn unset_setting_bitor() {
+        let m = Arg::new("unset_setting_bitor")
+            .setting(ArgSettings::Required)
+            .setting(ArgSettings::Hidden)
+            .setting(ArgSettings::Last);
+
+        assert!(m.is_required_set());
+        assert!(m.is_hide_set());
+        assert!(m.is_last_set());
+
+        let m = m.unset_setting(ArgSettings::Required | ArgSettings::Hidden | ArgSettings::Last);
+        assert!(!m.is_required_set(), "{:#?}", m);
+        assert!(!m.is_hide_set(), "{:#?}", m);
+        assert!(!m.is_last_set(), "{:#?}", m);
+    }
+}
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