switch from immutable to struct

src/distortedview.jl

@@ -1,4 +1,4 @@
-immutable DistortedView{T,P<:AbstractMatrix,E<:AbstractExtrapolation,G,D} <: AbstractArray{T,2}
+struct DistortedView{T,P<:AbstractMatrix,E<:AbstractExtrapolation,G,D} <: AbstractArray{T,2}
     parent::P
     etp::E
     grid::G

src/operations/cache.jl

@@ -51,7 +51,7 @@ see also
 
 [`augment`](@ref)
 """
-immutable CacheImage <: ImageOperation end
+struct CacheImage <: ImageOperation end
 
 applyeager(op::CacheImage, img::Array) = img
 applyeager(op::CacheImage, img::OffsetArray) = img
@@ -79,7 +79,7 @@ end
 
 see [`CacheImage`](@ref)
 """
-immutable CacheImageInto{T<:AbstractArray} <: ImageOperation
+struct CacheImageInto{T<:AbstractArray} <: ImageOperation
     buffer::T
 end
 CacheImage(buffer::AbstractArray) = CacheImageInto(buffer)

src/operations/channels.jl

@@ -44,7 +44,7 @@ see also
 
 [`PermuteDims`](@ref), [`CombineChannels`](@ref), [`augment`](@ref)
 """
-immutable SplitChannels <: Operation end
+struct SplitChannels <: Operation end
 
 @inline supports_eager(::Type{SplitChannels}) = false
 @inline supports_lazy(::Type{SplitChannels}) = true
@@ -126,7 +126,7 @@ see also
 
 [`SplitChannels`](@ref), [`PermuteDims`](@ref), [`augment`](@ref)
 """
-immutable CombineChannels{T<:Colorant} <: Operation
+struct CombineChannels{T<:Colorant} <: Operation
     colortype::Type{T}
 end
 
@@ -221,7 +221,7 @@ see also
 
 [`SplitChannels`](@ref), [`CombineChannels`](@ref), [`augment`](@ref)
 """
-immutable PermuteDims{N,perm,iperm} <: Operation end
+struct PermuteDims{N,perm,iperm} <: Operation end
 PermuteDims() = throw(MethodError(PermuteDims, ()))
 PermuteDims(perm::Tuple{}) = throw(MethodError(PermuteDims, (perm,)))
 PermuteDims(perm::NTuple{N,Int}) where {N} = PermuteDims{N,perm,invperm(perm)}()
@@ -297,7 +297,7 @@ see also
 
 [`CombineChannels`](@ref), [`augment`](@ref)
 """
-immutable Reshape{N} <: Operation
+struct Reshape{N} <: Operation
     dims::NTuple{N,Int}
 end
 Reshape() = throw(MethodError(Reshape, ()))

src/operations/crop.jl

@@ -48,7 +48,7 @@ see also
 
 [`CropNative`](@ref), [`CropSize`](@ref), [`CropRatio`](@ref), [`augment`](@ref)
 """
-immutable Crop{N,I<:Tuple} <: ImageOperation
+struct Crop{N,I<:Tuple} <: ImageOperation
     indexes::I
 
     function Crop{N}(indexes::NTuple{N,UnitRange}) where N
@@ -143,7 +143,7 @@ see also
 
 [`Crop`](@ref), [`CropSize`](@ref), [`CropRatio`](@ref), [`augment`](@ref)
 """
-immutable CropNative{N,I<:Tuple} <: ImageOperation
+struct CropNative{N,I<:Tuple} <: ImageOperation
     indexes::I
 
     function CropNative{N}(indexes::NTuple{N,UnitRange}) where N
@@ -229,7 +229,7 @@ see also
 
 [`CropRatio`](@ref), [`Crop`](@ref), [`CropNative`](@ref), [`augment`](@ref)
 """
-immutable CropSize{N} <: ImageOperation
+struct CropSize{N} <: ImageOperation
     size::NTuple{N,Int}
 
     function CropSize{N}(size::NTuple{N,Int}) where N
@@ -329,7 +329,7 @@ see also
 
 [`RCropRatio`](@ref), [`CropSize`](@ref), [`Crop`](@ref), [`CropNative`](@ref), [`augment`](@ref)
 """
-immutable CropRatio <: ImageOperation
+struct CropRatio <: ImageOperation
     ratio::Float64
 
     function CropRatio(ratio::Real)
@@ -451,7 +451,7 @@ see also
 
 [`CropRatio`](@ref), [`CropSize`](@ref), [`Crop`](@ref), [`CropNative`](@ref), [`augment`](@ref)
 """
-immutable RCropRatio <: ImageOperation
+struct RCropRatio <: ImageOperation
     ratio::Float64
 
     function RCropRatio(ratio::Real)

src/operations/distortion.jl

@@ -94,7 +94,7 @@ see also
 
 [`RandomDistortion`](@ref), [`augment`](@ref)
 """ ->
-immutable ElasticDistortion <: ImageOperation
+struct ElasticDistortion <: ImageOperation
     gridheight::Int
     gridwidth::Int
     scale::Float64

src/operations/either.jl

@@ -75,7 +75,7 @@ see also
 
 [`augment`](@ref)
 """
-immutable Either{N,T<:Tuple} <: ImageOperation
+struct Either{N,T<:Tuple} <: ImageOperation
     operations::T
     chances::SVector{N,Float64}
     cum_chances::SVector{N,Float64}

src/operations/flip.jl

@@ -51,7 +51,7 @@ see also
 
 [`FlipY`](@ref), [`Either`](@ref), [`augment`](@ref)
 """
-immutable FlipX <: AffineOperation end
+struct FlipX <: AffineOperation end
 FlipX(p::Number) = Either(FlipX(), p)
 
 @inline supports_stepview(::Type{FlipX}) = true
@@ -133,7 +133,7 @@ see also
 
 [`FlipX`](@ref), [`Either`](@ref), [`augment`](@ref)
 """
-immutable FlipY <: AffineOperation end
+struct FlipY <: AffineOperation end
 FlipY(p::Number) = Either(FlipY(), p)
 
 @inline supports_stepview(::Type{FlipY}) = true

src/operations/noop.jl

@@ -7,7 +7,7 @@ image but instead passes it along unchanged (without copying).
 Usually used in combination with [`Either`](@ref) to denote a
 "branch" that does not perform any computation.
 """
-immutable NoOp <: AffineOperation end
+struct NoOp <: AffineOperation end
 
 @inline supports_eager(::Type{NoOp}) = false
 @inline supports_stepview(::Type{NoOp}) = true

src/operations/resize.jl

@@ -41,7 +41,7 @@ see also
 
 [`CropSize`](@ref), [`augment`](@ref)
 """
-immutable Resize{N} <: ImageOperation
+struct Resize{N} <: ImageOperation
     size::NTuple{N,Int}
 
     function Resize{N}(size::NTuple{N,Int}) where N

src/operations/rotation.jl

@@ -54,7 +54,7 @@ see also
 [`Rotate180`](@ref), [`Rotate270`](@ref), [`Rotate`](@ref),
 [`Either`](@ref), [`augment`](@ref)
 """
-immutable Rotate90 <: AffineOperation end
+struct Rotate90 <: AffineOperation end
 Rotate90(p::Number) = Either(Rotate90(), p)
 
 @inline supports_permute(::Type{Rotate90}) = true
@@ -137,7 +137,7 @@ see also
 [`Rotate90`](@ref), [`Rotate270`](@ref), [`Rotate`](@ref),
 [`Either`](@ref), [`augment`](@ref)
 """
-immutable Rotate180 <: AffineOperation end
+struct Rotate180 <: AffineOperation end
 Rotate180(p::Number) = Either(Rotate180(), p)
 
 @inline supports_stepview(::Type{Rotate180}) = true
@@ -208,7 +208,7 @@ see also
 [`Rotate90`](@ref), [`Rotate180`](@ref), [`Rotate`](@ref),
 [`Either`](@ref), [`augment`](@ref)
 """
-immutable Rotate270 <: AffineOperation end
+struct Rotate270 <: AffineOperation end
 Rotate270(p::Number) = Either(Rotate270(), p)
 
 @inline supports_permute(::Type{Rotate270}) = true
@@ -307,7 +307,7 @@ see also
 [`Rotate90`](@ref), [`Rotate180`](@ref), [`Rotate270`](@ref),
 [`CropNative`](@ref), [`augment`](@ref)
 """
-immutable Rotate{T<:AbstractVector} <: AffineOperation
+struct Rotate{T<:AbstractVector} <: AffineOperation
     degree::T
 
     function Rotate{T}(degree::T) where {T<:AbstractVector{S} where S<:Real}

src/operations/scale.jl

@@ -59,7 +59,7 @@ see also
 
 [`Zoom`](@ref), [`Resize`](@ref), [`augment`](@ref)
 """
-immutable Scale{N,T<:AbstractVector} <: AffineOperation
+struct Scale{N,T<:AbstractVector} <: AffineOperation
     factors::NTuple{N,T}
 
     function Scale{N}(factors::NTuple{N,T}) where {N,T<:AbstractVector}

src/operations/shear.jl

@@ -48,7 +48,7 @@ see also
 
 [`ShearY`](@ref), [`CropNative`](@ref), [`augment`](@ref)
 """
-immutable ShearX{T<:AbstractVector} <: AffineOperation
+struct ShearX{T<:AbstractVector} <: AffineOperation
     degree::T
 
     function ShearX{T}(degree::T) where {T<:AbstractVector{S} where S<:Real}
@@ -132,7 +132,7 @@ see also
 
 [`ShearX`](@ref), [`CropNative`](@ref), [`augment`](@ref)
 """
-immutable ShearY{T<:AbstractVector} <: AffineOperation
+struct ShearY{T<:AbstractVector} <: AffineOperation
     degree::T
 
     function ShearY{T}(degree::T) where {T<:AbstractVector{S} where S<:Real}

src/operations/zoom.jl

@@ -63,7 +63,7 @@ see also
 
 [`Scale`](@ref), [`Resize`](@ref), [`augment`](@ref)
 """
-immutable Zoom{N,T<:AbstractVector} <: ImageOperation
+struct Zoom{N,T<:AbstractVector} <: ImageOperation
     factors::NTuple{N,T}
 
     function Zoom{N}(factors::NTuple{N,T}) where {N,T<:AbstractVector}

src/pipeline.jl

@@ -1,4 +1,4 @@
-immutable ImmutablePipeline{N,T<:Tuple} <: Pipeline
+struct ImmutablePipeline{N,T<:Tuple} <: Pipeline
     operations::T
 
     function ImmutablePipeline{N}(ops::NTuple{N,Operation}) where N