33 lines
980 B
Rust
33 lines
980 B
Rust
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// Eryn Wells <eryn@erynwells.me>
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#[macro_export]
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macro_rules! try_from_string {
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($type:ty) => {
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try_from_string!($type, &str);
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try_from_string!($type, &String);
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};
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($type:ty, $from_type:ty) => {
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impl TryFrom<$from_type> for $type {
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type Error = $crate::errors::TryFromStrError;
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fn try_from(value: $from_type) -> Result<Self, Self::Error> {
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let first_char = value
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.chars()
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.nth(0)
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.ok_or($crate::errors::TryFromStrError)?;
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Self::try_from(first_char).map_err(|_| $crate::errors::TryFromStrError)
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}
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}
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};
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}
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#[macro_export]
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macro_rules! piece {
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($color:ident $shape:ident) => {
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$crate::Piece::new($crate::Color::$color, $crate::Shape::$shape)
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};
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($color:ident $shape:ident on $square:ident) => {
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$crate::PlacedPiece::new(piece!($color $shape), $crate::Square::$square)
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}
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}
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