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Publicize internal traits to let users write generic fns #188

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Merged
merged 2 commits into from
Jan 24, 2019
Merged

Publicize internal traits to let users write generic fns #188

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c59a441
Publicize internal traits to let users write generic fns
9prady9 Jan 23, 2019
5c514ad
expose FloatingPoint trait
dchammond Jan 24, 2019
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3 changes: 3 additions & 0 deletions src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,10 @@ pub use crate::statistics::*;
mod statistics;

#[cfg(feature = "core")]
pub use crate::util::{ComplexFloating, RealFloating, RealNumber};
pub use crate::util::{get_size, HasAfEnum, ImplicitPromote};
pub use crate::util::{GrayRGBConvertible, ImageFilterType, ImageNativeType, Scanable};
pub use crate::util::{CovarianceComputable, EdgeComputable, MedianComputable, MomentsComputable};
#[cfg(feature = "core")]
mod util;

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16 changes: 16 additions & 0 deletions src/util.rs
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Expand Up @@ -608,6 +608,7 @@ impl Zero for Complex32 {
}
}

///Trait qualifier to accept either real or complex typed data
pub trait FloatingPoint {
fn is_real() -> bool {
false
Expand Down Expand Up @@ -638,16 +639,19 @@ impl FloatingPoint for f32 {
}
}

///Trait qualifier to accept real data(numbers)
pub trait RealFloating {}

impl RealFloating for f64 {}
impl RealFloating for f32 {}

///Trait qualifier to accept complex data(numbers)
pub trait ComplexFloating {}

impl ComplexFloating for Complex64 {}
impl ComplexFloating for Complex32 {}

///Trait qualifier indicating it can hold real numbers only
pub trait RealNumber {}

impl RealNumber for f64 {}
Expand All @@ -661,19 +665,24 @@ impl RealNumber for bool {}
impl RealNumber for u64 {}
impl RealNumber for i64 {}

///Trait qualifier for the type of Arrays accepted by scan operations
pub trait Scanable {}

impl Scanable for i32 {}
impl Scanable for u32 {}
impl Scanable for u64 {}
impl Scanable for i64 {}

/// Trait qualifier for type of Array's that are accepted
/// by native image load/save functions.
pub trait ImageNativeType {}

impl ImageNativeType for f32 {}
impl ImageNativeType for u16 {}
impl ImageNativeType for u8 {}

/// Trait qualifier for type of Array's that are accepted
/// by image processing functions especially filtering algorithms
pub trait ImageFilterType {}

impl ImageFilterType for f64 {}
Expand All @@ -686,6 +695,8 @@ impl ImageFilterType for u8 {}
impl ImageFilterType for bool {}

// TODO Rust haven't stabilized trait aliases yet
/// Trait qualifier for given type indicating conversion capability between
/// grayscale and RGB triplets of data
pub trait GrayRGBConvertible {}

impl GrayRGBConvertible for f64 {}
Expand All @@ -697,6 +708,7 @@ impl GrayRGBConvertible for u16 {}
impl GrayRGBConvertible for u8 {}

// TODO Rust haven't stabilized trait aliases yet
/// Trait qualifier for given type indicating computability of Moments
pub trait MomentsComputable {}

impl MomentsComputable for f64 {}
Expand All @@ -708,6 +720,7 @@ impl MomentsComputable for u16 {}
impl MomentsComputable for u8 {}

// TODO Rust haven't stabilized trait aliases yet
/// Trait qualifier for given type indicating computability of Median
pub trait MedianComputable {}

impl MedianComputable for f64 {}
Expand All @@ -719,6 +732,8 @@ impl MedianComputable for u16 {}
impl MedianComputable for u8 {}

// TODO Rust haven't stabilized trait aliases yet
/// Trait qualifier for given type indicating if edge calculations such as
/// derivates etc. can be performed
pub trait EdgeComputable {}

impl EdgeComputable for f64 {}
Expand All @@ -729,6 +744,7 @@ impl EdgeComputable for i16 {}
impl EdgeComputable for u16 {}
impl EdgeComputable for u8 {}

/// Trait qualifier for given type indicating computability of covariance
pub trait CovarianceComputable {}

impl CovarianceComputable for f64 {}
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