40 lines
991 B
Rust
40 lines
991 B
Rust
use std::ops::{Deref, DerefMut};
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use crate::base::coordinates::{X, XY, XYZ, XYZW, XYZWA, XYZWAB};
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use crate::base::Scalar;
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use crate::geometry::Scale;
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/*
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*
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* Give coordinates to Scale{1 .. 6}
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*
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*/
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macro_rules! deref_impl(
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($D: expr, $Target: ident $(, $comps: ident)*) => {
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impl<T: Scalar> Deref for Scale<T, $D> {
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type Target = $Target<T>;
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#[inline]
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fn deref(&self) -> &Self::Target {
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unsafe { &*(self as *const Scale<T, $D> as *const Self::Target) }
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}
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}
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impl<T: Scalar> DerefMut for Scale<T, $D> {
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#[inline]
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fn deref_mut(&mut self) -> &mut Self::Target {
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unsafe { &mut *(self as *mut Scale<T, $D> as *mut Self::Target) }
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}
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}
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}
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);
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deref_impl!(1, X, x);
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deref_impl!(2, XY, x, y);
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deref_impl!(3, XYZ, x, y, z);
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deref_impl!(4, XYZW, x, y, z, w);
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deref_impl!(5, XYZWA, x, y, z, w, a);
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deref_impl!(6, XYZWAB, x, y, z, w, a, b);
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