forked from mirrors/gstreamer-rs
417 lines
13 KiB
Rust
417 lines
13 KiB
Rust
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// Take a look at the license at the top of the repository in the LICENSE file.
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macro_rules! impl_op_same(
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($name:ident, $op:ident, $op_name:ident, $op_assign:ident, $op_assign_name:ident) => {
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impl<RHS: Borrow<$name>> ops::$op<RHS> for $name {
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type Output = Self;
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fn $op_name(self, rhs: RHS) -> Self::Output {
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Self(self.0.$op_name(rhs.borrow().0))
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}
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}
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impl<RHS: Borrow<$name>> ops::$op<RHS> for &$name {
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type Output = $name;
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fn $op_name(self, rhs: RHS) -> Self::Output {
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(*self).$op_name(rhs)
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}
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}
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impl<RHS: Borrow<$name>> ops::$op_assign<RHS> for $name {
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fn $op_assign_name(&mut self, rhs: RHS) {
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self.0.$op_assign_name(rhs.borrow().0)
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}
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}
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};
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);
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macro_rules! impl_op_inner_type(
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($name:ident, $inner_type:ty, $op:ident, $op_name:ident, $op_assign:ident, $op_assign_name:ident) => {
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impl ops::$op<$inner_type> for $name {
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type Output = $name;
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fn $op_name(self, rhs: $inner_type) -> Self::Output {
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$name(self.0.$op_name(rhs))
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}
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}
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impl ops::$op<$inner_type> for &$name {
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type Output = $name;
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fn $op_name(self, rhs: $inner_type) -> Self::Output {
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(*self).$op_name(rhs)
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}
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}
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impl ops::$op<$name> for $inner_type {
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type Output = $name;
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fn $op_name(self, rhs: $name) -> $name {
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$name(self.$op_name(rhs.0))
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}
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}
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impl ops::$op<&$name> for $inner_type {
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type Output = $name;
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fn $op_name(self, rhs: &$name) -> $name {
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self.$op_name(*rhs)
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}
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}
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impl ops::$op_assign<$inner_type> for $name {
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fn $op_assign_name(&mut self, rhs: $inner_type) {
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self.0.$op_assign_name(rhs)
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}
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}
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};
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);
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macro_rules! impl_common_ops_for_newtype_uint(
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($name:ident, $inner_type:ty) => {
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impl $name {
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pub const ZERO: Self = Self(0);
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pub const NONE: Option<Self> = None;
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pub const fn is_zero(self) -> bool {
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self.0 == Self::ZERO.0
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}
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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pub const fn checked_add(self, rhs: Self) -> Option<Self> {
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match self.0.checked_add(rhs.0) {
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Some(res) if res <= Self::MAX.0 => Some(Self(res)),
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_ => None,
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}
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}
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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pub const fn saturating_add(self, rhs: Self) -> Self {
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let res = self.0.saturating_add(rhs.0);
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if res < Self::MAX.0 {
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Self(res)
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} else {
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Self::MAX
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}
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}
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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pub fn overflowing_add(self, rhs: Self) -> (Self, bool) {
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let self_u128 = self.0 as u128;
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let rhs_128 = rhs.0 as u128;
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let res_u128 = self_u128 + rhs_128;
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if res_u128 <= Self::MAX.0 as u128 {
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(Self(<$inner_type>::try_from(res_u128).unwrap()), false)
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} else {
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(Self(<$inner_type>::try_from((res_u128 - Self::MAX.0 as u128 - 1) as u64).unwrap()), true)
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}
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}
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// FIXME add overflowing_add
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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pub fn wrapping_add(self, rhs: Self) -> Self {
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self.overflowing_add(rhs).0
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}
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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// FIXME Can't use `map` in a `const fn` as of rustc 1.53.0-beta.2
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#[allow(clippy::manual_map)]
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pub const fn checked_sub(self, rhs: Self) -> Option<Self> {
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match self.0.checked_sub(rhs.0) {
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Some(res) => Some(Self(res)),
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None => None,
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}
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}
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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pub const fn saturating_sub(self, rhs: Self) -> Self {
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Self(self.0.saturating_sub(rhs.0))
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}
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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pub const fn overflowing_sub(self, rhs: Self) -> (Self, bool) {
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if self.0 >= rhs.0 {
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(Self(self.0 - rhs.0), false)
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} else {
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(Self(Self::MAX.0 - rhs.0 + self.0 + 1), true)
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}
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}
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#[must_use = "this returns the result of the operation, without modifying the original"]
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#[inline]
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pub const fn wrapping_sub(self, rhs: Self) -> Self {
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self.overflowing_sub(rhs).0
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}
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}
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impl_op_same!($name, Add, add, AddAssign, add_assign);
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impl_op_same!($name, Sub, sub, SubAssign, sub_assign);
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impl_op_same!($name, Mul, mul, MulAssign, mul_assign);
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impl_op_same!($name, Div, div, DivAssign, div_assign);
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impl_op_same!($name, Rem, rem, RemAssign, rem_assign);
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impl_op_inner_type!($name, $inner_type, Mul, mul, MulAssign, mul_assign);
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impl_op_inner_type!($name, $inner_type, Div, div, DivAssign, div_assign);
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impl_op_inner_type!($name, $inner_type, Rem, rem, RemAssign, rem_assign);
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impl<ND: Borrow<$inner_type>> MulDiv<ND> for $name {
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type Output = $name;
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fn mul_div_floor(self, num: ND, denom: ND) -> Option<Self::Output> {
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self.0
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.mul_div_floor(*num.borrow(), *denom.borrow())
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.map($name)
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}
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fn mul_div_round(self, num: ND, denom: ND) -> Option<Self::Output> {
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self.0
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.mul_div_round(*num.borrow(), *denom.borrow())
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.map($name)
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}
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fn mul_div_ceil(self, num: ND, denom: ND) -> Option<Self::Output> {
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self.0
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.mul_div_ceil(*num.borrow(), *denom.borrow())
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.map($name)
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}
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}
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impl OptionOperations for $name {}
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impl OptionCheckedAdd for $name {
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type Output = Self;
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fn opt_checked_add(
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self,
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rhs: Self,
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) -> Result<Option<Self::Output>, opt_ops::CheckedError> {
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self.checked_add(rhs)
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.ok_or(opt_ops::CheckedError::Overflow)
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.map(Some)
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}
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}
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impl OptionSaturatingAdd for $name {
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type Output = Self;
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fn opt_saturating_add(self, rhs: Self) -> Option<Self::Output> {
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Some(self.saturating_add(rhs))
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}
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}
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impl OptionOverflowingAdd for $name {
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type Output = Self;
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fn opt_overflowing_add(self, rhs: Self) -> Option<(Self::Output, bool)> {
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let res = self.overflowing_add(rhs);
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Some((res.0, res.1))
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}
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}
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impl OptionWrappingAdd for $name {
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type Output = Self;
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fn opt_wrapping_add(self, rhs: Self) -> Option<Self::Output> {
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Some(self.wrapping_add(rhs))
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}
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}
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impl OptionCheckedSub for $name {
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type Output = Self;
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fn opt_checked_sub(
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self,
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rhs: Self,
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) -> Result<Option<Self::Output>, opt_ops::CheckedError> {
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self.checked_sub(rhs)
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.ok_or(opt_ops::CheckedError::Overflow)
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.map(Some)
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}
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}
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impl OptionSaturatingSub for $name {
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type Output = Self;
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fn opt_saturating_sub(self, rhs: Self) -> Option<Self::Output> {
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Some(self.saturating_sub(rhs))
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}
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}
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impl OptionOverflowingSub for $name {
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type Output = Self;
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fn opt_overflowing_sub(self, rhs: Self) -> Option<(Self::Output, bool)> {
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let res = self.overflowing_sub(rhs);
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Some((res.0, res.1))
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}
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}
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impl OptionWrappingSub for $name {
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type Output = Self;
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fn opt_wrapping_sub(self, rhs: Self) -> Option<Self::Output> {
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Some(self.wrapping_sub(rhs))
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}
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}
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};
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);
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macro_rules! impl_format_value_traits(
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($name:ident, $format:ident, $format_value:ident, $inner_type:ty) => {
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impl FormattedValue for Option<$name> {
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fn default_format() -> Format {
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Format::$format
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}
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fn format(&self) -> Format {
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Format::$format
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}
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unsafe fn from_raw(format: Format, value: i64) -> Option<$name> {
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debug_assert_eq!(format, Format::$format);
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FromGlib::from_glib(value as u64)
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}
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unsafe fn into_raw_value(self) -> i64 {
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IntoGlib::into_glib(self) as i64
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}
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}
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impl From<Option<$name>> for GenericFormattedValue {
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fn from(v: Option<$name>) -> Self {
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skip_assert_initialized!();
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Self::$format_value(v)
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}
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}
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impl From<$name> for GenericFormattedValue {
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fn from(v: $name) -> Self {
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skip_assert_initialized!();
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Self::$format_value(Some(v))
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}
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}
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impl FormattedValueIntrinsic for $name {
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type FormattedValueType = Option<$name>;
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}
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impl TryFrom<GenericFormattedValue> for Option<$name> {
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type Error = TryFromGenericFormattedValueError;
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fn try_from(v: GenericFormattedValue) -> Result<Option<$name>, Self::Error> {
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skip_assert_initialized!();
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if let GenericFormattedValue::$format_value(v) = v {
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Ok(v)
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} else {
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Err(TryFromGenericFormattedValueError(()))
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}
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}
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}
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impl TryFrom<$inner_type> for $name {
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type Error = GlibNoneError;
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fn try_from(v: $inner_type) -> Result<$name, GlibNoneError> {
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skip_assert_initialized!();
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unsafe { Self::try_from_glib(v as i64) }
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}
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}
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impl TryFromGlib<i64> for $name {
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type Error = GlibNoneError;
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#[inline]
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unsafe fn try_from_glib(val: i64) -> Result<Self, GlibNoneError> {
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skip_assert_initialized!();
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<$name as TryFromGlib<u64>>::try_from_glib(val as u64)
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}
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}
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impl SpecificFormattedValue for Option<$name> {}
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impl SpecificFormattedValueIntrinsic for $name {}
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impl ops::Deref for $name {
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type Target = $inner_type;
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fn deref(&self) -> &$inner_type {
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&self.0
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}
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}
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impl ops::DerefMut for $name {
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fn deref_mut(&mut self) -> &mut $inner_type {
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&mut self.0
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}
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}
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impl AsRef<$inner_type> for $name {
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fn as_ref(&self) -> &$inner_type {
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&self.0
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}
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}
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impl AsMut<$inner_type> for $name {
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fn as_mut(&mut self) -> &mut $inner_type {
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&mut self.0
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}
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}
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};
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);
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macro_rules! option_glib_newtype_from_to {
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($type_:ident, $none_value:expr) => {
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#[doc(hidden)]
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impl IntoGlib for $type_ {
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type GlibType = u64;
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fn into_glib(self) -> u64 {
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self.0
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}
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}
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#[doc(hidden)]
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impl OptionIntoGlib for $type_ {
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const GLIB_NONE: u64 = $none_value;
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}
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|
|
|
||
|
|
#[doc(hidden)]
|
||
|
|
impl TryFromGlib<u64> for $type_ {
|
||
|
|
type Error = GlibNoneError;
|
||
|
|
#[inline]
|
||
|
|
unsafe fn try_from_glib(val: u64) -> Result<Self, GlibNoneError> {
|
||
|
|
skip_assert_initialized!();
|
||
|
|
if val == $none_value {
|
||
|
|
return Err(GlibNoneError);
|
||
|
|
}
|
||
|
|
|
||
|
|
Ok($type_(val))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
macro_rules! option_glib_newtype_display {
|
||
|
|
($name:ident, $unit:expr) => {
|
||
|
|
impl crate::utils::Displayable for Option<$name> {
|
||
|
|
type DisplayImpl = String;
|
||
|
|
|
||
|
|
fn display(self) -> String {
|
||
|
|
if let Some(val) = self {
|
||
|
|
val.display()
|
||
|
|
} else {
|
||
|
|
format!("undef. {}", $unit)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
impl crate::utils::Displayable for $name {
|
||
|
|
type DisplayImpl = String;
|
||
|
|
|
||
|
|
fn display(self) -> String {
|
||
|
|
format!("{} {}", self.0, $unit)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
}
|