reduce ndslice template bloat part 2

Author: 9il

std/experimental/ndslice/internal.d

@@ -477,6 +477,8 @@ private bool isValidPartialPermutationImpl(size_t N)(in size_t[] perm, ref int[N
     return true;
 }
 
+enum toSize_t(size_t i) = i;
+enum isSize_t(alias i) = is(typeof(i) == size_t);
 enum isIndex(I) = is(I : size_t);
 enum is_Slice(S) = is(S : _Slice);
 

std/experimental/ndslice/iteration.d

@@ -410,6 +410,9 @@ See_also: $(LREF swapped), $(LREF everted)
 template transposed(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias transposed = .transposed!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb Slice!(N, Range) transposed(size_t N, Range)(Slice!(N, Range) slice)
     {
         mixin DimensionsCountCTError;
@@ -537,6 +540,9 @@ Returns:
 template reversed(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias reversed = .reversed!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb auto reversed(size_t N, Range)(Slice!(N, Range) slice)
     {
         foreach (i, dimension; Dimensions)
@@ -642,6 +648,9 @@ Returns:
 template strided(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias strided = .strided!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb auto strided(size_t N, Range)(Slice!(N, Range) slice, Repeat!(Dimensions.length, size_t) factors)
     body
     {
@@ -868,6 +877,9 @@ Returns:
 template dropOne(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias dropOne = .dropOne!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb Slice!(N, Range) dropOne(size_t N, Range)(Slice!(N, Range) slice)
     {
         foreach (i, dimension; Dimensions)
@@ -900,6 +912,9 @@ body
 template dropBackOne(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias dropBackOne = .dropBackOne!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb Slice!(N, Range) dropBackOne(size_t N, Range)(Slice!(N, Range) slice)
     {
         foreach (i, dimension; Dimensions)
@@ -987,6 +1002,9 @@ Returns:
 template dropExactly(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias dropExactly = .dropExactly!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb Slice!(N, Range) dropExactly(size_t N, Range)(Slice!(N, Range) slice, Repeat!(Dimensions.length, size_t) ns)
     body
     {
@@ -1015,6 +1033,9 @@ body
 template dropBackExactly(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias dropBackExactly = .dropBackExactly!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb Slice!(N, Range) dropBackExactly(size_t N, Range)(Slice!(N, Range) slice, Repeat!(Dimensions.length, size_t) ns)
     body
     {
@@ -1076,6 +1097,9 @@ Returns:
 template drop(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias drop = .drop!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb Slice!(N, Range) drop(size_t N, Range)(Slice!(N, Range) slice, Repeat!(Dimensions.length, size_t) ns)
     body
     {
@@ -1104,6 +1128,9 @@ body
 template dropBack(Dimensions...)
     if (Dimensions.length)
 {
+    static if (!allSatisfy!(isSize_t, Dimensions))
+        alias dropBack = .dropBack!(staticMap!(toSize_t, Dimensions));
+    else
     @fmb Slice!(N, Range) dropBack(size_t N, Range)(Slice!(N, Range) slice, Repeat!(Dimensions.length, size_t) ns)
     body
     {

std/experimental/ndslice/selection.d

@@ -75,6 +75,9 @@ Returns:
 +/
 template pack(K...)
 {
+    static if (!allSatisfy!(isSize_t, K))
+        alias pack = .pack!(staticMap!(toSize_t, K));
+    else
     @fmb auto pack(size_t N, Range)(Slice!(N, Range) slice)
     {
         template Template(size_t NInner, Range, R...)