1 files changed, 83 insertions, 0 deletions
diff --git a/third_party/rust/clap_builder/src/builder/app_settings.rs b/third_party/rust/clap_builder/src/builder/app_settings.rs
new file mode 100644
index 0000000000..4fce4b4a2e
--- /dev/null
+++ b/third_party/rust/clap_builder/src/builder/app_settings.rs
@@ -0,0 +1,83 @@
+#[allow(unused)]
+use crate::Arg;
+#[allow(unused)]
+use crate::Command;
+
+#[derive(Default, Copy, Clone, Debug, PartialEq, Eq)]
+pub(crate) struct AppFlags(u32);
+
+impl AppFlags {
+    pub(crate) fn set(&mut self, setting: AppSettings) {
+        self.0 |= setting.bit();
+    }
+
+    pub(crate) fn unset(&mut self, setting: AppSettings) {
+        self.0 &= !setting.bit();
+    }
+
+    pub(crate) fn is_set(&self, setting: AppSettings) -> bool {
+        self.0 & setting.bit() != 0
+    }
+
+    pub(crate) fn insert(&mut self, other: Self) {
+        self.0 |= other.0;
+    }
+}
+
+impl std::ops::BitOr for AppFlags {
+    type Output = Self;
+
+    fn bitor(mut self, rhs: Self) -> Self::Output {
+        self.insert(rhs);
+        self
+    }
+}
+
+/// Application level settings, which affect how [`Command`] operates
+///
+/// **NOTE:** When these settings are used, they apply only to current command, and are *not*
+/// propagated down or up through child or parent subcommands
+///
+/// [`Command`]: crate::Command
+#[derive(Debug, PartialEq, Copy, Clone)]
+#[repr(u8)]
+pub(crate) enum AppSettings {
+    IgnoreErrors,
+    AllowHyphenValues,
+    AllowNegativeNumbers,
+    AllArgsOverrideSelf,
+    AllowMissingPositional,
+    TrailingVarArg,
+    DontDelimitTrailingValues,
+    InferLongArgs,
+    InferSubcommands,
+    SubcommandRequired,
+    AllowExternalSubcommands,
+    Multicall,
+    SubcommandsNegateReqs,
+    ArgsNegateSubcommands,
+    SubcommandPrecedenceOverArg,
+    ArgRequiredElseHelp,
+    NextLineHelp,
+    DisableColoredHelp,
+    DisableHelpFlag,
+    DisableHelpSubcommand,
+    DisableVersionFlag,
+    PropagateVersion,
+    Hidden,
+    HidePossibleValues,
+    HelpExpected,
+    NoBinaryName,
+    #[allow(dead_code)]
+    ColorAuto,
+    ColorAlways,
+    ColorNever,
+    Built,
+    BinNameBuilt,
+}
+
+impl AppSettings {
+    fn bit(self) -> u32 {
+        1 << (self as u8)
+    }
+}