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73d5b82f9f
I want to do this so that I can get rid of Either<>. The reasons for getting rid of either are multiple: * It doesn't generate as nice C++ code using cbindgen. * It isn't that nice to use either from Rust. * cbindgen has bugs with zero-sized types. I started using this for ColorOrAuto and a few others, for now. Differential Revision: https://phabricator.services.mozilla.com/D19844
43 lines
958 B
Rust
43 lines
958 B
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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//! Generic types for the column properties.
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/// A generic type for `column-count` values.
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#[derive(
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Animate,
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Clone,
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ComputeSquaredDistance,
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Copy,
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Debug,
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MallocSizeOf,
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Parse,
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PartialEq,
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SpecifiedValueInfo,
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ToAnimatedValue,
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ToAnimatedZero,
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ToComputedValue,
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ToCss,
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)]
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pub enum ColumnCount<PositiveInteger> {
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/// A positive integer.
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Integer(PositiveInteger),
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/// The keyword `auto`.
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#[animation(error)]
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Auto,
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}
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impl<I> ColumnCount<I> {
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/// Returns `auto`.
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#[inline]
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pub fn auto() -> Self {
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ColumnCount::Auto
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}
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/// Returns whether this value is `auto`.
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#[inline]
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pub fn is_auto(self) -> bool {
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matches!(self, ColumnCount::Auto)
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}
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}
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