Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 543 insertions, 0 deletions

diff --git a/vendor/bitflags/src/public.rs b/vendor/bitflags/src/public.rs
new file mode 100644
index 0000000..967e0da
--- /dev/null
+++ b/vendor/bitflags/src/public.rs
@@ -0,0 +1,543 @@
+//! Generate the user-facing flags type.
+//!
+//! The code here belongs to the end-user, so new trait implementations and methods can't be
+//! added without potentially breaking users.
+
+/// Declare the user-facing bitflags struct.
+///
+/// This type is guaranteed to be a newtype with a `bitflags`-facing type as its single field.
+#[macro_export(local_inner_macros)]
+#[doc(hidden)]
+macro_rules! __declare_public_bitflags {
+    (
+        $(#[$outer:meta])*
+        $vis:vis struct $PublicBitFlags:ident
+    ) => {
+        $(#[$outer])*
+        $vis struct $PublicBitFlags(<$PublicBitFlags as $crate::__private::PublicFlags>::Internal);
+    };
+}
+
+/// Implement functions on the public (user-facing) bitflags type.
+///
+/// We need to be careful about adding new methods and trait implementations here because they
+/// could conflict with items added by the end-user.
+#[macro_export(local_inner_macros)]
+#[doc(hidden)]
+macro_rules! __impl_public_bitflags_forward {
+    (
+        $PublicBitFlags:ident: $T:ty, $InternalBitFlags:ident
+    ) => {
+        __impl_bitflags! {
+            $PublicBitFlags: $T {
+                fn empty() {
+                    Self($InternalBitFlags::empty())
+                }
+
+                fn all() {
+                    Self($InternalBitFlags::all())
+                }
+
+                fn bits(f) {
+                    f.0.bits()
+                }
+
+                fn from_bits(bits) {
+                    match $InternalBitFlags::from_bits(bits) {
+                        $crate::__private::core::option::Option::Some(bits) => $crate::__private::core::option::Option::Some(Self(bits)),
+                        $crate::__private::core::option::Option::None => $crate::__private::core::option::Option::None,
+                    }
+                }
+
+                fn from_bits_truncate(bits) {
+                    Self($InternalBitFlags::from_bits_truncate(bits))
+                }
+
+                fn from_bits_retain(bits) {
+                    Self($InternalBitFlags::from_bits_retain(bits))
+                }
+
+                fn from_name(name) {
+                    match $InternalBitFlags::from_name(name) {
+                        $crate::__private::core::option::Option::Some(bits) => $crate::__private::core::option::Option::Some(Self(bits)),
+                        $crate::__private::core::option::Option::None => $crate::__private::core::option::Option::None,
+                    }
+                }
+
+                fn is_empty(f) {
+                    f.0.is_empty()
+                }
+
+                fn is_all(f) {
+                    f.0.is_all()
+                }
+
+                fn intersects(f, other) {
+                    f.0.intersects(other.0)
+                }
+
+                fn contains(f, other) {
+                    f.0.contains(other.0)
+                }
+
+                fn insert(f, other) {
+                    f.0.insert(other.0)
+                }
+
+                fn remove(f, other) {
+                    f.0.remove(other.0)
+                }
+
+                fn toggle(f, other) {
+                    f.0.toggle(other.0)
+                }
+
+                fn set(f, other, value) {
+                    f.0.set(other.0, value)
+                }
+
+                fn intersection(f, other) {
+                    Self(f.0.intersection(other.0))
+                }
+
+                fn union(f, other) {
+                    Self(f.0.union(other.0))
+                }
+
+                fn difference(f, other) {
+                    Self(f.0.difference(other.0))
+                }
+
+                fn symmetric_difference(f, other) {
+                    Self(f.0.symmetric_difference(other.0))
+                }
+
+                fn complement(f) {
+                    Self(f.0.complement())
+                }
+            }
+        }
+    };
+}
+
+/// Implement functions on the public (user-facing) bitflags type.
+///
+/// We need to be careful about adding new methods and trait implementations here because they
+/// could conflict with items added by the end-user.
+#[macro_export(local_inner_macros)]
+#[doc(hidden)]
+macro_rules! __impl_public_bitflags {
+    (
+        $BitFlags:ident: $T:ty, $PublicBitFlags:ident {
+            $(
+                $(#[$inner:ident $($args:tt)*])*
+                const $Flag:tt = $value:expr;
+            )*
+        }
+    ) => {
+        __impl_bitflags! {
+            $BitFlags: $T {
+                fn empty() {
+                    Self(<$T as $crate::Bits>::EMPTY)
+                }
+
+                fn all() {
+                    let mut truncated = <$T as $crate::Bits>::EMPTY;
+                    let mut i = 0;
+
+                    $(
+                        __bitflags_expr_safe_attrs!(
+                            $(#[$inner $($args)*])*
+                            {{
+                                let flag = <$PublicBitFlags as $crate::Flags>::FLAGS[i].value().bits();
+
+                                truncated = truncated | flag;
+                                i += 1;
+                            }}
+                        );
+                    )*
+
+                    let _ = i;
+                    Self::from_bits_retain(truncated)
+                }
+
+                fn bits(f) {
+                    f.0
+                }
+
+                fn from_bits(bits) {
+                    let truncated = Self::from_bits_truncate(bits).0;
+
+                    if truncated == bits {
+                        $crate::__private::core::option::Option::Some(Self(bits))
+                    } else {
+                        $crate::__private::core::option::Option::None
+                    }
+                }
+
+                fn from_bits_truncate(bits) {
+                    Self(bits & Self::all().bits())
+                }
+
+                fn from_bits_retain(bits) {
+                    Self(bits)
+                }
+
+                fn from_name(name) {
+                    $(
+                        __bitflags_flag!({
+                            name: $Flag,
+                            named: {
+                                __bitflags_expr_safe_attrs!(
+                                    $(#[$inner $($args)*])*
+                                    {
+                                        if name == $crate::__private::core::stringify!($Flag) {
+                                            return $crate::__private::core::option::Option::Some(Self($PublicBitFlags::$Flag.bits()));
+                                        }
+                                    }
+                                );
+                            },
+                            unnamed: {},
+                        });
+                    )*
+
+                    let _ = name;
+                    $crate::__private::core::option::Option::None
+                }
+
+                fn is_empty(f) {
+                    f.bits() == <$T as $crate::Bits>::EMPTY
+                }
+
+                fn is_all(f) {
+                    // NOTE: We check against `Self::all` here, not `Self::Bits::ALL`
+                    // because the set of all flags may not use all bits
+                    Self::all().bits() | f.bits() == f.bits()
+                }
+
+                fn intersects(f, other) {
+                    f.bits() & other.bits() != <$T as $crate::Bits>::EMPTY
+                }
+
+                fn contains(f, other) {
+                    f.bits() & other.bits() == other.bits()
+                }
+
+                fn insert(f, other) {
+                    *f = Self::from_bits_retain(f.bits()).union(other);
+                }
+
+                fn remove(f, other) {
+                    *f = Self::from_bits_retain(f.bits()).difference(other);
+                }
+
+                fn toggle(f, other) {
+                    *f = Self::from_bits_retain(f.bits()).symmetric_difference(other);
+                }
+
+                fn set(f, other, value) {
+                    if value {
+                        f.insert(other);
+                    } else {
+                        f.remove(other);
+                    }
+                }
+
+                fn intersection(f, other) {
+                    Self::from_bits_retain(f.bits() & other.bits())
+                }
+
+                fn union(f, other) {
+                    Self::from_bits_retain(f.bits() | other.bits())
+                }
+
+                fn difference(f, other) {
+                    Self::from_bits_retain(f.bits() & !other.bits())
+                }
+
+                fn symmetric_difference(f, other) {
+                    Self::from_bits_retain(f.bits() ^ other.bits())
+                }
+
+                fn complement(f) {
+                    Self::from_bits_truncate(!f.bits())
+                }
+            }
+        }
+    };
+}
+
+/// Implement iterators on the public (user-facing) bitflags type.
+#[macro_export(local_inner_macros)]
+#[doc(hidden)]
+macro_rules! __impl_public_bitflags_iter {
+    ($BitFlags:ident: $T:ty, $PublicBitFlags:ident) => {
+        impl $BitFlags {
+            /// Yield a set of contained flags values.
+            ///
+            /// Each yielded flags value will correspond to a defined named flag. Any unknown bits
+            /// will be yielded together as a final flags value.
+            #[inline]
+            pub const fn iter(&self) -> $crate::iter::Iter<$PublicBitFlags> {
+                $crate::iter::Iter::__private_const_new(
+                    <$PublicBitFlags as $crate::Flags>::FLAGS,
+                    $PublicBitFlags::from_bits_retain(self.bits()),
+                    $PublicBitFlags::from_bits_retain(self.bits()),
+                )
+            }
+
+            /// Yield a set of contained named flags values.
+            ///
+            /// This method is like [`iter`](#method.iter), except only yields bits in contained named flags.
+            /// Any unknown bits, or bits not corresponding to a contained flag will not be yielded.
+            #[inline]
+            pub const fn iter_names(&self) -> $crate::iter::IterNames<$PublicBitFlags> {
+                $crate::iter::IterNames::__private_const_new(
+                    <$PublicBitFlags as $crate::Flags>::FLAGS,
+                    $PublicBitFlags::from_bits_retain(self.bits()),
+                    $PublicBitFlags::from_bits_retain(self.bits()),
+                )
+            }
+        }
+
+        impl $crate::__private::core::iter::IntoIterator for $BitFlags {
+            type Item = $PublicBitFlags;
+            type IntoIter = $crate::iter::Iter<$PublicBitFlags>;
+
+            fn into_iter(self) -> Self::IntoIter {
+                self.iter()
+            }
+        }
+    };
+}
+
+/// Implement traits on the public (user-facing) bitflags type.
+#[macro_export(local_inner_macros)]
+#[doc(hidden)]
+macro_rules! __impl_public_bitflags_ops {
+    ($PublicBitFlags:ident) => {
+        impl $crate::__private::core::fmt::Binary for $PublicBitFlags {
+            fn fmt(
+                &self,
+                f: &mut $crate::__private::core::fmt::Formatter,
+            ) -> $crate::__private::core::fmt::Result {
+                $crate::__private::core::fmt::Binary::fmt(&self.0, f)
+            }
+        }
+
+        impl $crate::__private::core::fmt::Octal for $PublicBitFlags {
+            fn fmt(
+                &self,
+                f: &mut $crate::__private::core::fmt::Formatter,
+            ) -> $crate::__private::core::fmt::Result {
+                $crate::__private::core::fmt::Octal::fmt(&self.0, f)
+            }
+        }
+
+        impl $crate::__private::core::fmt::LowerHex for $PublicBitFlags {
+            fn fmt(
+                &self,
+                f: &mut $crate::__private::core::fmt::Formatter,
+            ) -> $crate::__private::core::fmt::Result {
+                $crate::__private::core::fmt::LowerHex::fmt(&self.0, f)
+            }
+        }
+
+        impl $crate::__private::core::fmt::UpperHex for $PublicBitFlags {
+            fn fmt(
+                &self,
+                f: &mut $crate::__private::core::fmt::Formatter,
+            ) -> $crate::__private::core::fmt::Result {
+                $crate::__private::core::fmt::UpperHex::fmt(&self.0, f)
+            }
+        }
+
+        impl $crate::__private::core::ops::BitOr for $PublicBitFlags {
+            type Output = Self;
+
+            /// The bitwise or (`|`) of the bits in two flags values.
+            #[inline]
+            fn bitor(self, other: $PublicBitFlags) -> Self {
+                self.union(other)
+            }
+        }
+
+        impl $crate::__private::core::ops::BitOrAssign for $PublicBitFlags {
+            /// The bitwise or (`|`) of the bits in two flags values.
+            #[inline]
+            fn bitor_assign(&mut self, other: Self) {
+                self.insert(other);
+            }
+        }
+
+        impl $crate::__private::core::ops::BitXor for $PublicBitFlags {
+            type Output = Self;
+
+            /// The bitwise exclusive-or (`^`) of the bits in two flags values.
+            #[inline]
+            fn bitxor(self, other: Self) -> Self {
+                self.symmetric_difference(other)
+            }
+        }
+
+        impl $crate::__private::core::ops::BitXorAssign for $PublicBitFlags {
+            /// The bitwise exclusive-or (`^`) of the bits in two flags values.
+            #[inline]
+            fn bitxor_assign(&mut self, other: Self) {
+                self.toggle(other);
+            }
+        }
+
+        impl $crate::__private::core::ops::BitAnd for $PublicBitFlags {
+            type Output = Self;
+
+            /// The bitwise and (`&`) of the bits in two flags values.
+            #[inline]
+            fn bitand(self, other: Self) -> Self {
+                self.intersection(other)
+            }
+        }
+
+        impl $crate::__private::core::ops::BitAndAssign for $PublicBitFlags {
+            /// The bitwise and (`&`) of the bits in two flags values.
+            #[inline]
+            fn bitand_assign(&mut self, other: Self) {
+                *self = Self::from_bits_retain(self.bits()).intersection(other);
+            }
+        }
+
+        impl $crate::__private::core::ops::Sub for $PublicBitFlags {
+            type Output = Self;
+
+            /// The intersection of a source flags value with the complement of a target flags value (`&!`).
+            ///
+            /// This method is not equivalent to `self & !other` when `other` has unknown bits set.
+            /// `difference` won't truncate `other`, but the `!` operator will.
+            #[inline]
+            fn sub(self, other: Self) -> Self {
+                self.difference(other)
+            }
+        }
+
+        impl $crate::__private::core::ops::SubAssign for $PublicBitFlags {
+            /// The intersection of a source flags value with the complement of a target flags value (`&!`).
+            ///
+            /// This method is not equivalent to `self & !other` when `other` has unknown bits set.
+            /// `difference` won't truncate `other`, but the `!` operator will.
+            #[inline]
+            fn sub_assign(&mut self, other: Self) {
+                self.remove(other);
+            }
+        }
+
+        impl $crate::__private::core::ops::Not for $PublicBitFlags {
+            type Output = Self;
+
+            /// The bitwise negation (`!`) of the bits in a flags value, truncating the result.
+            #[inline]
+            fn not(self) -> Self {
+                self.complement()
+            }
+        }
+
+        impl $crate::__private::core::iter::Extend<$PublicBitFlags> for $PublicBitFlags {
+            /// The bitwise or (`|`) of the bits in each flags value.
+            fn extend<T: $crate::__private::core::iter::IntoIterator<Item = Self>>(
+                &mut self,
+                iterator: T,
+            ) {
+                for item in iterator {
+                    self.insert(item)
+                }
+            }
+        }
+
+        impl $crate::__private::core::iter::FromIterator<$PublicBitFlags> for $PublicBitFlags {
+            /// The bitwise or (`|`) of the bits in each flags value.
+            fn from_iter<T: $crate::__private::core::iter::IntoIterator<Item = Self>>(
+                iterator: T,
+            ) -> Self {
+                use $crate::__private::core::iter::Extend;
+
+                let mut result = Self::empty();
+                result.extend(iterator);
+                result
+            }
+        }
+    };
+}
+
+/// Implement constants on the public (user-facing) bitflags type.
+#[macro_export(local_inner_macros)]
+#[doc(hidden)]
+macro_rules! __impl_public_bitflags_consts {
+    (
+        $PublicBitFlags:ident: $T:ty {
+            $(
+                $(#[$inner:ident $($args:tt)*])*
+                const $Flag:tt = $value:expr;
+            )*
+        }
+    ) => {
+        impl $PublicBitFlags {
+            $(
+                __bitflags_flag!({
+                    name: $Flag,
+                    named: {
+                        $(#[$inner $($args)*])*
+                        #[allow(
+                            deprecated,
+                            non_upper_case_globals,
+                        )]
+                        pub const $Flag: Self = Self::from_bits_retain($value);
+                    },
+                    unnamed: {},
+                });
+            )*
+        }
+
+        impl $crate::Flags for $PublicBitFlags {
+            const FLAGS: &'static [$crate::Flag<$PublicBitFlags>] = &[
+                $(
+                    __bitflags_flag!({
+                        name: $Flag,
+                        named: {
+                            __bitflags_expr_safe_attrs!(
+                                $(#[$inner $($args)*])*
+                                {
+                                    #[allow(
+                                        deprecated,
+                                        non_upper_case_globals,
+                                    )]
+                                    $crate::Flag::new($crate::__private::core::stringify!($Flag), $PublicBitFlags::$Flag)
+                                }
+                            )
+                        },
+                        unnamed: {
+                            __bitflags_expr_safe_attrs!(
+                                $(#[$inner $($args)*])*
+                                {
+                                    #[allow(
+                                        deprecated,
+                                        non_upper_case_globals,
+                                    )]
+                                    $crate::Flag::new("", $PublicBitFlags::from_bits_retain($value))
+                                }
+                            )
+                        },
+                    }),
+                )*
+            ];
+
+            type Bits = $T;
+
+            fn bits(&self) -> $T {
+                $PublicBitFlags::bits(self)
+            }
+
+            fn from_bits_retain(bits: $T) -> $PublicBitFlags {
+                $PublicBitFlags::from_bits_retain(bits)
+            }
+        }
+    };
+}