close #1051

tests/metatype/tstaticvector.nim

@@ -2,7 +2,9 @@ discard """
   output: '''0
 0
 2
-100'''
+100
+30.0 [data = [2.0]]
+'''
 """
 
 type
@@ -16,13 +18,12 @@ type
 proc foo*[N, T](a: StaticVector[N, T]): T = 0.T
 proc foobar*[N, T](a, b: StaticVector[N, T]): T = 0.T
 
-
 var a: StaticVector[3, int]
 
 echo foo(a) # OK
 echo foobar(a, a) # <--- hangs compiler
 
-# bug #3112
+# https://github.com/nim-lang/Nim/issues/3112
 
 type
   Vector[N: static[int]] = array[N, float64]
@@ -30,10 +31,45 @@ type
     a: Vector[Na]
     b: Vector[Nb]
 
-when isMainModule:
-  var v: TwoVectors[2, 100]
-  echo v[0].len
-  echo v[1].len
-  #let xx = 50
-  v[1][50] = 0.0
+var v: TwoVectors[2, 100]
+echo v[0].len
+echo v[1].len
+#let xx = 50
+v[1][50] = 0.0
+
+# https://github.com/nim-lang/Nim/issues/1051
+
+type
+  TMatrix[N,M: static[int], T] = object
+    data: array[0..M*N-1, T]
+
+  TMat4f = TMatrix[4,4,float32]
+  TVec3f = TMatrix[1,3,float32]
+  TVec4f = TMatrix[1,4,float32]
+
+  TVec[N: static[int]; T] = TMatrix[1,N,T]
+
+proc dot*(a, b: TVec): TVec.T =
+  #assert(a.data.len == b.data.len)
+  for i in 1..a.data.len:
+    result += a.data[i-1] * b.data[i-1]
+
+proc row*(a: TMatrix; i: int): auto =
+  result = TVec[TMatrix.M, TMatrix.T]()
+  for idx in 1 .. TMatrix.M:
+    result.data[idx-1] = a.data[(TMatrix.N * (idx-1)) + (i-1)]
+
+proc col*(a: TMatrix; j: int): auto =
+  result = TVec[TMatrix.N, TMatrix.T]()
+  for idx in 0 .. <TMatrix.N:
+    result.data[idx] = a.data[(TMatrix.N * (idx)) + (j-1)]
+
+proc mul*(a: TMat4f; b: TMat4f): TMat4f =
+  for i in 1..4:
+    for j in 1..4:
+      result.data[(4 * (j-1)) + (i-1)] = dot(row(a,i), col(b,j))
+
+var test = TVec4f(data: [1.0'f32, 2.0'f32, 3.0'f32, 4.0'f32])
+
+echo dot(test,test), " ", repr(col(test, 2))
 

tests/statictypes/texplicitprocparams.nim

@@ -10,7 +10,7 @@ type
     x: int
 
 proc initOdArray*[As: static[int], T](len: int): OdArray[As, T] =
-  result.l = len
+  result.x = len
 
 echo initOdArray[10, int](100)