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discard """
output: '''
@[1, 2]
@[3, 4]
1
'''
"""
# https://github.com/nim-lang/Nim/issues/5756
type
Vec*[N : static[int]] = object
x: int
arr*: array[N, int32]
Mat*[M,N: static[int]] = object
x: int
arr*: array[M, Vec[N]]
proc vec2*(x,y:int32) : Vec[2] =
result.arr = [x,y]
result.x = 10
proc mat2*(a,b: Vec[2]): Mat[2,2] =
result.arr = [a,b]
result.x = 20
const M = mat2(vec2(1, 2), vec2(3, 4))
let m1 = M
echo @(m1.arr[0].arr)
echo @(m1.arr[1].arr)
proc foo =
let m2 = M
echo m1.arr[0].arr[0]
foo()
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