Add Metal kernel int type

Author: GiackAloZ

src/ParallelKernel/MetalExt/shared.jl

@@ -8,11 +8,9 @@ import Metal.MTL
 # @define_MetalCellArray
 
 ## FUNCTIONS TO CHECK EXTENSIONS SUPPORT
-
 ParallelStencil.ParallelKernel.is_loaded(::Val{:ParallelStencil_MetalExt}) = true
 
 ## FUNCTIONS TO GET CREATE AND MANAGE METAL QUEUES
-
 ParallelStencil.ParallelKernel.get_priority_metalqueue(arg...) = get_priority_metalqueue(arg...)
 ParallelStencil.ParallelKernel.get_metalqueue(arg...)          = get_metalqueue(arg...)
 let 

src/ParallelKernel/shared.jl

@@ -75,6 +75,7 @@ macro rangelengths() esc(:(($(RANGELENGTHS_VARNAMES...),))) end
 function kernel_int_type(package::Symbol)
     if     (package == PKG_CUDA)      int_type = INT_CUDA
     elseif (package == PKG_AMDGPU)    int_type = INT_AMDGPU
+    elseif (package == PKG_METAL)     int_type = INT_METAL
     elseif (package == PKG_THREADS)   int_type = INT_THREADS
     elseif (package == PKG_POLYESTER) int_type = INT_POLYESTER
     end