Add 'NUM_VARIANTS' constant to all 'board' enums
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5 changed files with 23 additions and 8 deletions
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@ -15,7 +15,10 @@ pub enum File {
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}
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impl File {
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const ALL: [Self; 8] = [
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/// The number of [File] variants.
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pub const NUM_VARIANTS: usize = 8;
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const ALL: [Self; Self::NUM_VARIANTS] = [
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Self::A,
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Self::B,
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Self::C,
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@ -34,7 +37,7 @@ impl File {
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/// Convert from a file index into a [File] type.
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#[inline(always)]
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pub fn from_index(index: usize) -> Self {
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assert!(index < 8);
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assert!(index < Self::NUM_VARIANTS);
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// SAFETY: we know the value is in-bounds
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unsafe { Self::from_index_unchecked(index) }
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}
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