further improvements for static generic params; activate the hardest test cases

tests/generics/tgenericshardcases.nim

@@ -14,7 +14,8 @@ macro selectType(a, b: typedesc): typedesc =
 type
   Foo[T] = object
     data1: array[T.high, int]
-    data2: array[typeNameLen(T), float] # data3: array[0..T.typeNameLen, selectType(float, int)]
+    data2: array[typeNameLen(T), float]
+    data3: array[0..T.typeNameLen, selectType(float, int)]
 
   MyEnum = enum A, B, C, D
 
@@ -27,10 +28,15 @@ echo high(f1.data2) # (MyEnum.len = 6) - 1 == 5
 echo high(f2.data1) # 127 - 1 == 126
 echo high(f2.data2) # int8.len - 1 == 3
 
-#static:
-# assert high(f1.data1) == ord(D)
-# assert high(f1.data2) == 6 # length of MyEnum
+static:
+  assert high(f1.data1) == ord(C)
+  assert high(f1.data2) == 5 # length of MyEnum minus one, because we used T.high
 
-# assert high(f2.data1) == 127
-# assert high(f2.data2) == 4 # length of int8
+  assert high(f2.data1) == 126
+  assert high(f2.data2) == 3 
+
+  assert high(f1.data3) == 6 # length of MyEnum
+  assert high(f2.data3) == 4 # length of int8
+
+  assert f2.data3[0] is float
 

tests/metatype/tstaticparams.nim

@@ -1,6 +1,6 @@
 discard """
   file: "tstaticparams.nim"
-  output: "abracadabra\ntest\n3"
+  output: "abracadabra\ntest\n3\n15"
 """
 
 type 
@@ -11,8 +11,8 @@ type
     data: array[I, T]
 
   TA1[T; I: static[int]] = array[I, T]
-  # TA2[T; I: static[int]] = array[0..I, T]
-  # TA3[T; I: static[int]] = array[I-1, T]
+  TA2[T; I: static[int]] = array[0..I, T]
+  TA3[T; I: static[int]] = array[I-1, T]
 
 proc takeFoo(x: TFoo) =
   echo "abracadabra"
@@ -26,6 +26,18 @@ echo high(y.data)
 
 var
   t1: TA1[float, 1]
-  # t2: TA2[string, 4]
-  # t3: TA3[int, 10]
+  t2: TA2[string, 4]
+  t3: TA3[int, 10]
+
+# example from the manual:
+type
+  Matrix[M,N: static[int]; T] = array[0..(M*N - 1), T]
+    # Note how `Number` is just a type constraint here, while
+    # `static[int]` requires us to supply a compile-time int value
+
+  AffineTransform2D[T] = Matrix[3, 3, T]
+  AffineTransform3D[T] = Matrix[4, 4, T]
+
+var m: AffineTransform3D[float]
+echo high(m)