1491 lines
27 KiB
V
1491 lines
27 KiB
V
fn test_js() {
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$if js_node {
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assert true
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} $else {
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assert false
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}
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}
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fn test_pointer() {
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mut arr := []&int{}
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a := 1
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b := 2
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c := 3
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arr << &a
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arr << &b
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arr << &c
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assert *arr[0] == 1
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arr[1] = &c
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assert *arr[1] == 3
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mut d_arr := [arr] // [][]&int
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d_arr << arr
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assert *d_arr[0][1] == 3
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println(*d_arr[0][1])
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assert *d_arr[1][0] == 1
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}
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fn test_assign() {
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mut arr := [2, 4, 8, 16, 32, 64, 128]
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arr[0] = 2
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arr[1] &= 255
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arr[2] |= 255
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arr[3] <<= 4
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arr[4] >>= 4
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arr[5] %= 5
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arr[6] ^= 3
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assert arr[0] == 2
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assert arr[1] == 4 & 255
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assert arr[2] == 8 | 255
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assert arr[3] == 16 << 4
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assert arr[4] == 32 >> 4
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assert arr[5] == 64 % 5
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assert arr[6] == 128 ^ 3
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}
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fn test_ints() {
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mut a := [1, 5, 2, 3]
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assert a.len == 4
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assert a[0] == 1
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assert a[2] == 2
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assert a.last() == 3
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a << 4
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assert a.len == 5
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assert a[4] == 4
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assert a.last() == 4
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s := a.str()
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assert s == '[1, 5, 2, 3, 4]'
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assert a[1] == 5
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assert a.last() == 4
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}
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fn test_deleting() {
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mut a := [1, 5, 2, 3, 4]
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assert a.len == 5
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assert a.str() == '[1, 5, 2, 3, 4]'
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a.delete(0)
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assert a.str() == '[5, 2, 3, 4]'
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assert a.len == 4
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a.delete(1)
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assert a.str() == '[5, 3, 4]'
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assert a.len == 3
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a.delete(a.len - 1)
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assert a.str() == '[5, 3]'
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assert a.len == 2
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}
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fn test_slice_delete() {
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mut a := [1.5, 2.5, 3.25, 4.5, 5.75]
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b := a[2..4]
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a.delete(0)
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assert a == [2.5, 3.25, 4.5, 5.75]
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assert b == [3.25, 4.5]
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a = [3.75, 4.25, -1.5, 2.25, 6.0]
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c := a[..3]
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a.delete(2)
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assert a == [3.75, 4.25, 2.25, 6.0]
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assert c == [3.75, 4.25, -1.5]
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}
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fn test_delete_many() {
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mut a := [1, 2, 3, 4, 5, 6, 7, 8, 9]
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b := a[2..6]
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a.delete_many(4, 3)
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assert a == [1, 2, 3, 4, 8, 9]
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assert b == [3, 4, 5, 6]
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c := a[..a.len]
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a.delete_many(2, 0) // this should just clone
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a[1] = 17
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assert a == [1, 17, 3, 4, 8, 9]
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assert c == [1, 2, 3, 4, 8, 9]
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a.delete_many(0, a.len)
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assert a == []int{}
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}
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fn test_short() {
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a := [1, 2, 3]
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assert a.len == 3
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assert a.cap == 3
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assert a[0] == 1
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assert a[1] == 2
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assert a[2] == 3
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}
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fn test_large() {
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mut a := [0].repeat(0)
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for i in 0 .. 10000 {
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a << i
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}
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assert a.len == 10000
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assert a[234] == 234
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}
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struct Chunk {
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val string
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}
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struct Kkk {
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q []Chunk
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}
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fn test_empty() {
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mut chunks := []Chunk{}
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a := Chunk{}
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assert chunks.len == 0
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chunks << a
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assert chunks.len == 1
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chunks = []
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assert chunks.len == 0
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chunks << a
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assert chunks.len == 1
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}
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fn test_push() {
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mut a := []int{}
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a << 1
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a << 3
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assert a[1] == 3
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assert a.str() == '[1, 3]'
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}
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fn test_insert() {
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mut a := [1, 2]
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a.insert(0, 3)
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assert a[0] == 3
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assert a[2] == 2
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assert a.len == 3
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a.insert(1, 4)
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assert a[1] == 4
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assert a[2] == 1
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assert a.len == 4
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a.insert(4, 5)
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assert a[4] == 5
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assert a[3] == 2
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assert a.len == 5
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mut b := []f64{}
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assert b.len == 0
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b.insert(0, f64(1.1))
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assert b.len == 1
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assert b[0] == f64(1.1)
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}
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fn test_insert_many() {
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mut a := [3, 4]
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a.insert(0, [1, 2])
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assert a == [1, 2, 3, 4]
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b := [5, 6]
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a.insert(1, b)
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assert a == [1, 5, 6, 2, 3, 4]
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}
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fn test_prepend() {
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mut a := []int{}
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assert a.len == 0
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a.prepend(1)
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assert a.len == 1
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assert a[0] == 1
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mut b := []f64{}
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assert b.len == 0
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b.prepend(f64(1.1))
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assert b.len == 1
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assert b[0] == f64(1.1)
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}
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fn test_prepend_many() {
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mut a := [3, 4]
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a.prepend([1, 2])
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assert a == [1, 2, 3, 4]
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b := [5, 6]
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a.prepend(b)
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assert a == [5, 6, 1, 2, 3, 4]
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}
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fn test_strings() {
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a := ['a', 'b', 'c']
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assert a.str() == "['a', 'b', 'c']"
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}
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/*
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fn test_compare_ints() {
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assert compare_ints(1, 2) == -1
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assert compare_ints(2, 1) == 1
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assert compare_ints(0, 0) == 0
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a := 1
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b := 2
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assert compare_ints(a, b) == -1
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assert compare_ints(b, a) == 1
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assert compare_ints(a, a) == 0
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}
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*/
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fn test_repeat() {
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{
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a := [0].repeat(5)
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assert a.len == 5
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assert a[0] == 0 && a[1] == 0 && a[2] == 0 && a[3] == 0 && a[4] == 0
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}
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{
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a := [1.1].repeat(10)
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assert a[0] == 1.1
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assert a[5] == 1.1
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assert a[9] == 1.1
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}
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{
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a := [i64(-123)].repeat(10)
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assert a[0] == -123
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assert a[5] == -123
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assert a[9] == -123
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}
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{
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a := [u64(123)].repeat(10)
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assert a[0] == 123
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assert a[5] == 123
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assert a[9] == 123
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}
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{
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a := [1.1].repeat(10)
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assert a[0] == 1.1
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assert a[5] == 1.1
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assert a[9] == 1.1
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}
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{
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a := [1, 2].repeat(2)
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assert a[0] == 1
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assert a[1] == 2
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assert a[2] == 1
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assert a[3] == 2
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}
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{
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a := ['1', 'abc'].repeat(2)
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assert a[0] == '1'
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assert a[1] == 'abc'
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assert a[2] == '1'
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assert a[3] == 'abc'
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}
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{
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mut a := ['1', 'abc'].repeat(0)
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assert a.len == 0
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a << 'abc'
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assert a[0] == 'abc'
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}
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}
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/*
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fn test_deep_repeat() {
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mut a3 := [[[1, 1], [2, 2], [3, 3]], [[4, 4], [5, 5], [6, 6]]]
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r := a3.repeat(3)
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a3[1][1][0] = 17
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assert r == [
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[[1, 1], [2, 2], [3, 3]],
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[[4, 4], [5, 5], [6, 6]],
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[[1, 1], [2, 2], [3, 3]],
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[[4, 4], [5, 5], [6, 6]],
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[[1, 1], [2, 2], [3, 3]],
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[[4, 4], [5, 5], [6, 6]],
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]
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assert a3 == [[[1, 1], [2, 2], [3, 3]], [[4, 4], [17, 5], [6, 6]]]
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}
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*/
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fn test_right() {
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a := [1, 2, 3, 4]
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c := a[1..a.len]
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d := a[1..]
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assert c[0] == 2
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assert c[1] == 3
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assert d[0] == 2
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assert d[1] == 3
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}
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fn test_left() {
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a := [1, 2, 3]
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c := a[0..2]
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d := a[..2]
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assert c[0] == 1
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assert c[1] == 2
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assert d[0] == 1
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assert d[1] == 2
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}
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fn test_slice() {
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a := [1, 2, 3, 4]
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b := a[2..4]
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assert b.len == 2
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assert a[1..2].len == 1
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assert a.len == 4
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}
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|
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fn test_push_many() {
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mut a := [1, 2, 3]
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b := [4, 5, 6]
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a << b
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assert a.len == 6
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assert a[0] == 1
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assert a[3] == 4
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assert a[5] == 6
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}
|
|
|
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fn test_reverse() {
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a := [1, 2, 3, 4]
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b := ['test', 'array', 'reverse']
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c := a.reverse()
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println(c)
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d := b.reverse()
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for i, _ in c {
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assert c[i] == a[a.len - i - 1]
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}
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for i, _ in d {
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assert d[i] == b[b.len - i - 1]
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}
|
|
e := []int{}
|
|
f := e.reverse()
|
|
assert f.len == 0
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|
}
|
|
|
|
const (
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c_n = 5
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|
)
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|
|
|
struct Foooj {
|
|
a [5]int // c_n
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|
}
|
|
|
|
fn test_fixed() {
|
|
mut nums := [4]int{}
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|
// x := nums[1..3]
|
|
// assert x.len == 2
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|
assert nums[0] == 0
|
|
assert nums[1] == 0
|
|
assert nums[2] == 0
|
|
assert nums[3] == 0
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|
nums[1] = 7
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assert nums[1] == 7
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nums2 := [5]int{} // c_n
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assert nums2[c_n - 1] == 0
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}
|
|
|
|
fn modify(mut numbers []int) {
|
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numbers[0] = 777
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|
}
|
|
|
|
fn test_mut_slice() {
|
|
mut n := [1, 2, 3]
|
|
// modify(mut n)
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|
modify(mut n[..2])
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|
assert n[0] == 777
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|
modify(mut n[2..])
|
|
assert n[2] == 777
|
|
println(n)
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|
}
|
|
|
|
fn double_up(mut a []int) {
|
|
for i := 0; i < a.len; i++ {
|
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a[i] = a[i] * 2
|
|
}
|
|
}
|
|
|
|
fn double_up_v2(mut a []int) {
|
|
for i, _ in a {
|
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a[i] = a[i] * 2 // or val*2, doesn't matter
|
|
}
|
|
}
|
|
|
|
fn test_mut_arg() {
|
|
mut arr := [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
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|
double_up(mut arr)
|
|
assert arr.str() == '[2, 4, 6, 8, 10, 12, 14, 16, 18, 20]'
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|
arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
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double_up_v2(mut arr)
|
|
assert arr.str() == '[2, 4, 6, 8, 10, 12, 14, 16, 18, 20]'
|
|
}
|
|
|
|
fn test_clone() {
|
|
nums := [1, 2, 3, 4, 100]
|
|
_ = nums
|
|
nums2 := nums.clone()
|
|
assert nums2.len == 5
|
|
assert nums.str() == '[1, 2, 3, 4, 100]'
|
|
assert nums2.str() == '[1, 2, 3, 4, 100]'
|
|
assert nums[1..3].str() == '[2, 3]'
|
|
}
|
|
|
|
/*
|
|
fn test_copy() {
|
|
a := [1, 2, 3]
|
|
b := a
|
|
assert b[0] == 1
|
|
assert b[1] == 2
|
|
assert b[2] == 3
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|
}
|
|
*/
|
|
fn test_multi_array_clone() {
|
|
// 2d array_int
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|
mut a2_1 := [[1, 2, 3], [4, 5, 6]]
|
|
mut a2_2 := a2_1.clone()
|
|
a2_1[0][1] = 0
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|
a2_2[1][0] = 0
|
|
assert a2_1 == [[1, 0, 3], [4, 5, 6]]
|
|
assert a2_2 == [[1, 2, 3], [0, 5, 6]]
|
|
// 2d array_string
|
|
mut b2_1 := [['1', '2', '3'], ['4', '5', '6']]
|
|
mut b2_2 := b2_1.clone()
|
|
b2_1[0][1] = '0'
|
|
b2_2[1][0] = '0'
|
|
assert b2_1 == [['1', '0', '3'], ['4', '5', '6']]
|
|
assert b2_2 == [['1', '2', '3'], ['0', '5', '6']]
|
|
// 3d array_int
|
|
mut a3_1 := [[[1, 1], [2, 2], [3, 3]], [[4, 4], [5, 5], [6, 6]]]
|
|
mut a3_2 := a3_1.clone()
|
|
a3_1[0][0][1] = 0
|
|
a3_2[0][1][0] = 0
|
|
assert a3_1 == [[[1, 0], [2, 2], [3, 3]], [[4, 4], [5, 5],
|
|
[6, 6]]]
|
|
assert a3_2 == [[[1, 1], [0, 2], [3, 3]], [[4, 4], [5, 5],
|
|
[6, 6]]]
|
|
// 3d array_string
|
|
mut b3_1 := [[['1', '1'], ['2', '2'], ['3', '3']], [['4', '4'],
|
|
['5', '5'], ['6', '6']]]
|
|
mut b3_2 := b3_1.clone()
|
|
b3_1[0][0][1] = '0'
|
|
b3_2[0][1][0] = '0'
|
|
assert b3_1 == [[['1', '0'], ['2', '2'], ['3', '3']], [['4', '4'],
|
|
['5', '5'], ['6', '6']]]
|
|
assert b3_2 == [[['1', '1'], ['0', '2'], ['3', '3']], [['4', '4'],
|
|
['5', '5'], ['6', '6']]]
|
|
}
|
|
|
|
fn test_doubling() {
|
|
mut nums := [1, 2, 3, 4, 5]
|
|
for i in 0 .. nums.len {
|
|
nums[i] *= 2
|
|
}
|
|
println(nums.str())
|
|
assert nums.str() == '[2, 4, 6, 8, 10]'
|
|
}
|
|
|
|
struct Test2 {
|
|
one int
|
|
two int
|
|
}
|
|
|
|
struct Test {
|
|
a string
|
|
mut:
|
|
b []Test2
|
|
}
|
|
|
|
// TODO: default array/struct str methods
|
|
fn (ta []Test2) str() string {
|
|
mut s := '['
|
|
for i, t in ta {
|
|
s += t.str()
|
|
if i < ta.len - 1 {
|
|
s += ', '
|
|
}
|
|
}
|
|
s += ']'
|
|
return s
|
|
}
|
|
|
|
fn (t Test2) str() string {
|
|
return '{$t.one $t.two}'
|
|
}
|
|
|
|
fn (t Test) str() string {
|
|
return '{$t.a $t.b}'
|
|
}
|
|
|
|
fn test_struct_print() {
|
|
mut a := Test{
|
|
a: 'Test'
|
|
b: []
|
|
}
|
|
b := Test2{
|
|
one: 1
|
|
two: 2
|
|
}
|
|
a.b << b
|
|
a.b << b
|
|
assert a.str() == '{Test [{1 2}, {1 2}]}'
|
|
assert b.str() == '{1 2}'
|
|
assert a.b.str() == '[{1 2}, {1 2}]'
|
|
}
|
|
|
|
fn test_single_element() {
|
|
mut a := [1]
|
|
a << 2
|
|
assert a.len == 2
|
|
assert a[0] == 1
|
|
assert a[1] == 2
|
|
println(a)
|
|
}
|
|
|
|
fn test_find_index() {
|
|
// string
|
|
a := ['v', 'is', 'great']
|
|
assert a.index('v') == 0
|
|
assert a.index('is') == 1
|
|
assert a.index('gre') == -1
|
|
// int
|
|
b := [1, 2, 3, 4]
|
|
assert b.index(1) == 0
|
|
assert b.index(4) == 3
|
|
assert b.index(5) == -1
|
|
// byte
|
|
c := [0x22, 0x33, 0x55]
|
|
assert c.index(0x22) == 0
|
|
assert c.index(0x55) == 2
|
|
assert c.index(0x99) == -1
|
|
// char
|
|
d := [`a`, `b`, `c`]
|
|
assert d.index(`b`) == 1
|
|
assert d.index(`c`) == 2
|
|
assert d.index(`u`) == -1
|
|
}
|
|
|
|
fn test_multi() {
|
|
a := [[1, 2, 3], [4, 5, 6]]
|
|
assert a.len == 2
|
|
assert a[0].len == 3
|
|
assert a[0][0] == 1
|
|
assert a[0][2] == 3
|
|
assert a[1][2] == 6
|
|
// TODO
|
|
// b := [ [[1,2,3],[4,5,6]], [[1,2]] ]
|
|
// assert b[0][0][0] == 1
|
|
}
|
|
|
|
fn test_in() {
|
|
a := [1, 2, 3]
|
|
assert 1 in a
|
|
assert 2 in a
|
|
assert 3 in a
|
|
assert 4 !in a
|
|
assert 0 !in a
|
|
assert 0 !in a
|
|
assert 4 !in a
|
|
b := [1, 4, 0]
|
|
c := [3, 6, 2, 0]
|
|
assert 0 in b
|
|
assert 0 in c
|
|
}
|
|
|
|
fn sum(prev int, curr int) int {
|
|
return prev + curr
|
|
}
|
|
|
|
fn sub(prev int, curr int) int {
|
|
return prev - curr
|
|
}
|
|
|
|
fn test_reduce() {
|
|
a := [1, 2, 3, 4, 5]
|
|
b := a.reduce(sum, 0)
|
|
c := a.reduce(sum, 5)
|
|
d := a.reduce(sum, -1)
|
|
assert b == 15
|
|
assert c == 20
|
|
assert d == 14
|
|
e := [1, 2, 3]
|
|
f := e.reduce(sub, 0)
|
|
g := e.reduce(sub, -1)
|
|
assert f == -6
|
|
assert g == -7
|
|
}
|
|
|
|
fn filter_test_helper_1(a int) bool {
|
|
return a > 3
|
|
}
|
|
|
|
fn test_filter() {
|
|
a := [1, 2, 3, 4, 5, 6]
|
|
b := a.filter(it % 2 == 0)
|
|
assert b.len == 3
|
|
assert b[0] == 2
|
|
assert b[1] == 4
|
|
assert b[2] == 6
|
|
c := ['v', 'is', 'awesome']
|
|
d := c.filter(it.len > 1)
|
|
assert d[0] == 'is'
|
|
assert d[1] == 'awesome'
|
|
////////
|
|
arr := [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
|
|
println(arr.filter(it % 2 == 0 || it % 3 == 0))
|
|
assert true
|
|
assert [1, 2, 3].len == 3
|
|
mut mut_arr := [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
|
|
mut_arr = mut_arr.filter(it < 4)
|
|
assert mut_arr.len == 3
|
|
assert a.filter(filter_test_helper_1) == [4, 5, 6]
|
|
assert [1, 5, 10].filter(filter_test_helper_1) == [5, 10]
|
|
// TODO
|
|
// assert arr.filter(arr % 2).len == 5
|
|
}
|
|
|
|
fn test_anon_fn_filter() {
|
|
filter_num := fn (i int) bool {
|
|
return i % 2 == 0
|
|
}
|
|
assert [1, 2, 3, 4, 5].filter(filter_num) == [2, 4]
|
|
}
|
|
|
|
fn test_anon_fn_arg_filter() {
|
|
a := [1, 2, 3, 4].filter(fn (i int) bool {
|
|
return i % 2 == 0
|
|
})
|
|
assert a == [2, 4]
|
|
}
|
|
|
|
fn map_test_helper_1(i int) int {
|
|
return i * i
|
|
}
|
|
|
|
fn map_test_helper_2(i int, b string) int {
|
|
return i + b.len
|
|
}
|
|
|
|
fn map_test_helper_3(i int, b []string) int {
|
|
return i + b.map(it.len)[i % b.len]
|
|
}
|
|
|
|
fn test_map() {
|
|
nums := [1, 2, 3, 4, 5, 6]
|
|
strs := ['v', 'is', 'awesome']
|
|
// assert nums.map() == <error>
|
|
// assert nums.map(it, 'excessive') == <error>
|
|
// identity
|
|
assert nums.map(it) == [1, 2, 3, 4, 5, 6]
|
|
assert strs.map(it) == ['v', 'is', 'awesome']
|
|
assert nums.map(it - it) == [0, 0, 0, 0, 0, 0]
|
|
assert nums.map(it - it)[0] == 0
|
|
// type switch
|
|
assert nums.map(it * 10) == [10, 20, 30, 40, 50, 60]
|
|
assert nums.map(it * it) == [1, 4, 9, 16, 25, 36]
|
|
assert nums.map('$it') == ['1', '2', '3', '4', '5', '6']
|
|
assert nums.map(it % 2 == 0) == [false, true, false, true, false, true]
|
|
assert strs.map(it.to_upper()) == ['V', 'IS', 'AWESOME']
|
|
assert strs.map(it == 'awesome') == [false, false, true]
|
|
assert strs.map(it.len in nums) == [true, true, false]
|
|
assert strs.map(int(7)) == [7, 7, 7]
|
|
// external func
|
|
assert nums.map(map_test_helper_1(it)) == [1, 4, 9, 16, 25, 36]
|
|
assert nums.map(map_test_helper_2(it, 'bb')) == [3, 4, 5, 6, 7, 8]
|
|
assert nums.map(map_test_helper_3(it, strs)) == [3, 9, 4, 6, 12, 7]
|
|
// empty array as input
|
|
assert []int{len: 0}.map(it * 2) == []
|
|
// nested maps (where it is of same type)
|
|
assert nums.map(strs.map(int(7)) == [7, 7, 7]) == [true, true, true, true, true, true]
|
|
assert nums.map('$it' + strs.map('a')[0]) == ['1a', '2a', '3a', '4a', '5a', '6a']
|
|
assert nums.map(it + strs.map(int(7))[0]) == [8, 9, 10, 11, 12, 13]
|
|
assert nums.map(it + strs.map(it.len)[0]) == [2, 3, 4, 5, 6, 7]
|
|
assert strs.map(it.len + strs.map(it.len)[0]) == [2, 3, 8]
|
|
// nested (different it types)
|
|
assert strs.map(it[nums.map(it - it)[0]]) == [byte(`v`), `i`, `a`]
|
|
assert nums[0..3].map('$it' + strs.map(it)[it - 1]) == ['1v', '2is', '3awesome']
|
|
assert nums.map(map_test_helper_1) == [1, 4, 9, 16, 25, 36]
|
|
assert [1, 5, 10].map(map_test_helper_1) == [1, 25, 100]
|
|
assert nums == [1, 2, 3, 4, 5, 6]
|
|
assert strs == ['v', 'is', 'awesome']
|
|
}
|
|
|
|
fn test_anon_fn_map() {
|
|
add_num := fn (i int) int {
|
|
return i + 1
|
|
}
|
|
assert [1, 2, 3].map(add_num) == [2, 3, 4]
|
|
}
|
|
|
|
fn test_multi_anon_fn_map() {
|
|
a := [1, 2, 3].map(fn (i int) int {
|
|
return i + 1
|
|
})
|
|
b := [1, 2, 3].map(fn (i int) int {
|
|
return i + 2
|
|
})
|
|
assert a == [2, 3, 4]
|
|
assert b == [3, 4, 5]
|
|
}
|
|
|
|
fn test_anon_fn_arg_map() {
|
|
a := [1, 2, 3].map(fn (i int) int {
|
|
return i + 1
|
|
})
|
|
assert a == [2, 3, 4]
|
|
}
|
|
|
|
fn test_anon_fn_arg_different_type_map() {
|
|
i_to_str := fn (i int) string {
|
|
return i.str()
|
|
}
|
|
a := [1, 2, 3].map(i_to_str)
|
|
assert a == ['1', '2', '3']
|
|
}
|
|
|
|
fn test_anon_fn_inline_different_type_map() {
|
|
a := [1, 2, 3].map(fn (i int) string {
|
|
return i.str()
|
|
})
|
|
assert a == ['1', '2', '3']
|
|
}
|
|
|
|
fn test_array_str() {
|
|
numbers := [1, 2, 3]
|
|
assert numbers == [1, 2, 3]
|
|
numbers2 := [numbers, [4, 5, 6]] // dup str() bug
|
|
println(numbers2)
|
|
assert true
|
|
assert numbers.str() == '[1, 2, 3]'
|
|
// QTODO
|
|
// assert numbers2.str() == '[[1, 2, 3], [4, 5, 6]]'
|
|
}
|
|
|
|
struct User {
|
|
age int
|
|
name string
|
|
}
|
|
|
|
fn test_eq() {
|
|
assert [5, 6, 7] != [6, 7]
|
|
assert [`a`, `b`] == [`a`, `b`]
|
|
assert [User{
|
|
age: 22
|
|
name: 'bob'
|
|
}] == [User{
|
|
age: 22
|
|
name: 'bob'
|
|
}]
|
|
/*
|
|
assert [{
|
|
'bob': 22
|
|
}, {
|
|
'tom': 33
|
|
}] == [{
|
|
'bob': 22
|
|
}, {
|
|
'tom': 33
|
|
}]*/
|
|
assert [[1, 2, 3], [4]] == [[1, 2, 3], [4]]
|
|
}
|
|
|
|
fn test_fixed_array_eq() {
|
|
a1 := [1, 2, 3]!
|
|
assert a1 == [1, 2, 3]!
|
|
assert a1 != [2, 3, 4]!
|
|
|
|
a2 := [[1, 2]!, [3, 4]!]!
|
|
assert a2 == [[1, 2]!, [3, 4]!]!
|
|
assert a2 != [[3, 4]!, [1, 2]!]!
|
|
|
|
a3 := [[1, 2], [3, 4]]!
|
|
assert a3 == [[1, 2], [3, 4]]!
|
|
assert a3 != [[1, 1], [2, 2]]!
|
|
|
|
a4 := [[`a`, `b`], [`c`, `d`]]!
|
|
assert a4 == [[`a`, `b`], [`c`, `d`]]!
|
|
assert a4 != [[`c`, `a`], [`a`, `b`]]!
|
|
|
|
a5 := [['aaa', 'bbb'], ['ccc', 'ddd']]!
|
|
assert a5 == [['aaa', 'bbb'], ['ccc', 'ddd']]!
|
|
assert a5 != [['abc', 'def'], ['ccc', 'ddd']]!
|
|
|
|
a6 := [['aaa', 'bbb']!, ['ccc', 'ddd']!]!
|
|
assert a6 == [['aaa', 'bbb']!, ['ccc', 'ddd']!]!
|
|
assert a6 != [['aaa', 'bbb']!, ['aaa', 'ddd']!]!
|
|
|
|
a7 := [[1, 2]!, [3, 4]!]
|
|
assert a7 == [[1, 2]!, [3, 4]!]
|
|
assert a7 != [[2, 3]!, [1, 2]!]
|
|
|
|
a8 := [['aaa', 'bbb']!, ['ccc', 'ddd']!]
|
|
assert a8 == [['aaa', 'bbb']!, ['ccc', 'ddd']!]
|
|
assert a8 != [['bbb', 'aaa']!, ['cccc', 'dddd']!]
|
|
}
|
|
|
|
fn test_fixed_array_literal_eq() {
|
|
assert [1, 2, 3]! == [1, 2, 3]!
|
|
assert [1, 1, 1]! != [1, 2, 3]!
|
|
|
|
assert [[1, 2], [3, 4]]! == [[1, 2], [3, 4]]!
|
|
assert [[1, 1], [2, 2]]! != [[1, 2], [3, 4]]!
|
|
|
|
assert [[1, 1]!, [2, 2]!]! == [[1, 1]!, [2, 2]!]!
|
|
assert [[1, 1]!, [2, 2]!]! != [[1, 2]!, [2, 3]!]!
|
|
|
|
assert [[1, 1]!, [2, 2]!] == [[1, 1]!, [2, 2]!]
|
|
assert [[1, 1]!, [2, 2]!] != [[1, 2]!, [2, 3]!]
|
|
}
|
|
|
|
fn test_sort() {
|
|
mut a := ['hi', '1', '5', '3']
|
|
a.sort()
|
|
assert a == ['1', '3', '5', 'hi']
|
|
|
|
mut nums := [67, -3, 108, 42, 7]
|
|
nums.sort()
|
|
assert nums == [-3, 7, 42, 67, 108]
|
|
|
|
nums.sort(a < b)
|
|
assert nums == [-3, 7, 42, 67, 108]
|
|
|
|
nums.sort(b < a)
|
|
assert nums == [108, 67, 42, 7, -3]
|
|
|
|
mut users := [User{22, 'Peter'}, User{20, 'Bob'}, User{25, 'Alice'}]
|
|
users.sort(a.age < b.age)
|
|
assert users[0].age == 20
|
|
assert users[1].age == 22
|
|
assert users[2].age == 25
|
|
assert users[0].name == 'Bob'
|
|
assert users[1].name == 'Peter'
|
|
assert users[2].name == 'Alice'
|
|
|
|
users.sort(a.age > b.age)
|
|
assert users[0].age == 25
|
|
assert users[1].age == 22
|
|
assert users[2].age == 20
|
|
|
|
users.sort(b.age > a.age)
|
|
assert users[0].age == 20
|
|
assert users[1].age == 22
|
|
assert users[2].age == 25
|
|
|
|
users.sort(a.name < b.name)
|
|
assert users[0].name == 'Alice'
|
|
assert users[1].name == 'Bob'
|
|
assert users[2].name == 'Peter'
|
|
}
|
|
|
|
fn test_rune_sort() {
|
|
mut bs := [`f`, `e`, `d`, `b`, `c`, `a`]
|
|
bs.sort()
|
|
println(bs)
|
|
assert bs == [`a`, `b`, `c`, `d`, `e`, `f`]
|
|
|
|
bs.sort(a > b)
|
|
println(bs)
|
|
assert bs == [`f`, `e`, `d`, `c`, `b`, `a`]
|
|
|
|
bs.sort(a < b)
|
|
println(bs)
|
|
assert bs == [`a`, `b`, `c`, `d`, `e`, `f`]
|
|
}
|
|
|
|
fn test_sort_by_different_order_of_a_b() {
|
|
mut x := [1, 2, 3]
|
|
x.sort(a < b)
|
|
println(x)
|
|
assert x == [1, 2, 3]
|
|
|
|
mut y := [1, 2, 3]
|
|
y.sort(b < a)
|
|
println(y)
|
|
assert y == [3, 2, 1]
|
|
}
|
|
|
|
fn test_f32_sort() {
|
|
mut f := [f32(50.0), 15, 1, 79, 38, 0, 27]
|
|
f.sort()
|
|
assert f == [f32(0.0), 1, 15, 27, 38, 50, 79]
|
|
|
|
f.sort(a < b)
|
|
assert f == [f32(0.0), 1, 15, 27, 38, 50, 79]
|
|
|
|
f.sort(b > a)
|
|
assert f == [f32(0.0), 1, 15, 27, 38, 50, 79]
|
|
|
|
f.sort(b < a)
|
|
assert f == [f32(79.0), 50, 38, 27, 15, 1, 0]
|
|
|
|
f.sort(a > b)
|
|
assert f == [f32(79.0), 50, 38, 27, 15, 1, 0]
|
|
}
|
|
|
|
fn test_f64_sort() {
|
|
mut f := [50.0, 15, 1, 79, 38, 0, 27]
|
|
f.sort()
|
|
assert f[0] == 0.0
|
|
assert f[1] == 1.0
|
|
assert f[6] == 79.0
|
|
}
|
|
|
|
fn test_i64_sort() {
|
|
mut f := [i64(50), 15, 1, 79, 38, 0, 27]
|
|
f.sort()
|
|
assert f[0] == 0
|
|
assert f[1] == 1
|
|
assert f[6] == 79
|
|
}
|
|
|
|
fn test_sort_index_expr() {
|
|
mut f := [[i64(50), 48], [i64(15)], [i64(1)], [i64(79)], [i64(38)],
|
|
[i64(0)], [i64(27)]]
|
|
// TODO This currently gives "indexing pointer" error without unsafe
|
|
unsafe {
|
|
f.sort(a[0] < b[0])
|
|
}
|
|
assert f == [[i64(0)], [i64(1)], [i64(15)], [i64(27)], [i64(38)],
|
|
[i64(50), 48], [i64(79)]]
|
|
}
|
|
|
|
fn test_a_b_paras_sort() {
|
|
mut arr_i := [1, 3, 2]
|
|
arr_i.sort(a < b)
|
|
println(arr_i)
|
|
assert arr_i == [1, 2, 3]
|
|
arr_i.sort(b < a)
|
|
println(arr_i)
|
|
assert arr_i == [3, 2, 1]
|
|
|
|
mut arr_f := [1.1, 3.3, 2.2]
|
|
arr_f.sort(a < b)
|
|
println(arr_f)
|
|
assert arr_f == [1.1, 2.2, 3.3]
|
|
arr_f.sort(b < a)
|
|
println(arr_f)
|
|
assert arr_f == [3.3, 2.2, 1.1]
|
|
}
|
|
|
|
/*
|
|
fn test_for_last() {
|
|
numbers := [1, 2, 3, 4]
|
|
mut s := '['
|
|
for num in numbers {
|
|
s += '$num'
|
|
if !last {
|
|
s += ', '
|
|
|
|
}
|
|
}
|
|
s += ']'
|
|
assert s == '[1, 2, 3, 4]'
|
|
}
|
|
*/
|
|
struct Foo {
|
|
mut:
|
|
bar []int
|
|
}
|
|
|
|
fn test_in_struct() {
|
|
mut baz := Foo{
|
|
bar: [0, 0, 0]
|
|
}
|
|
baz.bar[0] += 2
|
|
baz.bar[0]++
|
|
assert baz.bar[0] == 3
|
|
}
|
|
|
|
[direct_array_access]
|
|
fn test_direct_modification() {
|
|
mut foo := [2, 0, 5]
|
|
foo[1] = 3
|
|
foo[0] *= 7
|
|
foo[1]--
|
|
foo[2] -= 2
|
|
assert foo[0] == 14
|
|
assert foo[1] == 2
|
|
assert foo[2] == 3
|
|
}
|
|
|
|
fn test_bools() {
|
|
println('test b')
|
|
mut a := [true, false]
|
|
a << true
|
|
println(a)
|
|
}
|
|
|
|
fn test_push_many_self() {
|
|
mut actual_arr := [1, 2, 3, 4]
|
|
actual_arr << actual_arr
|
|
expected_arr := [1, 2, 3, 4, 1, 2, 3, 4]
|
|
assert actual_arr.len == expected_arr.len
|
|
for i in 0 .. actual_arr.len {
|
|
assert actual_arr[i] == expected_arr[i]
|
|
}
|
|
}
|
|
|
|
fn test_for() {
|
|
nums := [1, 2, 3]
|
|
mut sum := 0
|
|
for num in nums {
|
|
sum += num
|
|
}
|
|
assert sum == 6
|
|
}
|
|
|
|
fn test_clear() {
|
|
mut arr := [1, 2, 3]
|
|
assert arr.len == 3
|
|
arr.clear()
|
|
assert arr.len == 0
|
|
arr << 3
|
|
arr << 2
|
|
arr << 1
|
|
arr << 0
|
|
assert arr.len == 4
|
|
assert arr[0] == 3
|
|
assert arr[1] == 2
|
|
assert arr[2] == 1
|
|
assert arr[3] == 0
|
|
arr.clear()
|
|
assert arr.len == 0
|
|
}
|
|
|
|
/*
|
|
fn test_trim() {
|
|
mut arr := [1, 2, 3, 4, 5, 6, 7, 8, 9]
|
|
assert arr.len == 9
|
|
arr.trim(9)
|
|
assert arr.len == 9
|
|
assert arr.last() == 9
|
|
arr.trim(7)
|
|
assert arr.len == 7
|
|
assert arr.last() == 7
|
|
arr.trim(2)
|
|
assert arr.len == 2
|
|
assert arr.last() == 2
|
|
}*/
|
|
/*
|
|
fn test_hex() {
|
|
// array hex
|
|
st := [byte(`V`), `L`, `A`, `N`, `G`]
|
|
assert st.hex() == '564c414e47'
|
|
assert st.hex().len == 10
|
|
st1 := [byte(0x41)].repeat(100)
|
|
assert st1.hex() == '41'.repeat(100)
|
|
}*/
|
|
|
|
fn test_left_shift_precendence() {
|
|
mut arr := []int{}
|
|
arr << 1 + 1
|
|
arr << 1 - 1
|
|
arr << 2 / 1
|
|
arr << 2 * 1
|
|
assert arr[0] == 2
|
|
assert arr[1] == 0
|
|
assert arr[2] == 2
|
|
assert arr[3] == 2
|
|
}
|
|
|
|
/*
|
|
fn test_array_with_cap() {
|
|
a4 := []int{len: 1, cap: 10}
|
|
assert a4.len == 1
|
|
assert a4.cap == 10
|
|
a5 := []int{len: 1, cap: 10}
|
|
assert a5.len == 1
|
|
assert a5.cap == 10
|
|
}*/
|
|
fn test_multi_array_index() {
|
|
mut a := [][]int{len: 2, init: []int{len: 3, init: 0}}
|
|
a[0][0] = 1
|
|
assert '$a' == '[[1, 0, 0], [0, 0, 0]]'
|
|
// mut b := [[0].repeat(3)].repeat(2)
|
|
// b[0][0] = 1
|
|
// assert '$b' == '[[1, 0, 0], [0, 0, 0]]'
|
|
}
|
|
|
|
fn test_plus_assign_string() {
|
|
mut a := ['']
|
|
a[0] += 'abc'
|
|
assert a == ['abc']
|
|
}
|
|
|
|
fn mut_arr_with_eq_in_fn(mut a []int) {
|
|
if a == [1, 2, 3, 4] {
|
|
a[0] = 0
|
|
}
|
|
if [0, 2, 3, 4] == a {
|
|
a[1] = 0
|
|
}
|
|
if !(a != [0, 0, 3, 4]) {
|
|
a[2] = 0
|
|
}
|
|
if !([0, 0, 0, 4] != a) {
|
|
a[3] = 0
|
|
}
|
|
}
|
|
|
|
fn test_mut_arr_with_eq_in_fn() {
|
|
mut a := [1, 2, 3, 4]
|
|
mut_arr_with_eq_in_fn(mut a)
|
|
assert a == [0, 0, 0, 0]
|
|
}
|
|
|
|
fn array_in_mut(mut a []int) {
|
|
if 1 in a {
|
|
a[0] = 2
|
|
}
|
|
}
|
|
|
|
fn test_array_in_mut() {
|
|
mut a := [1, 2]
|
|
array_in_mut(mut a)
|
|
assert a == [2, 2]
|
|
}
|
|
|
|
// test array delete in function with mut argument
|
|
fn delete_nums(mut arr []int) {
|
|
arr.delete(0)
|
|
}
|
|
|
|
fn test_array_delete_in_mut() {
|
|
mut nums := [1, 2, 3]
|
|
delete_nums(mut nums)
|
|
assert nums == [2, 3]
|
|
}
|
|
|
|
// test array add in function with mut argument
|
|
fn add_nums(mut arr []int) {
|
|
arr << 4
|
|
}
|
|
|
|
fn test_array_add_in_mut() {
|
|
mut nums := [1, 2, 3]
|
|
add_nums(mut nums)
|
|
assert nums == [1, 2, 3, 4]
|
|
}
|
|
|
|
fn test_reverse_in_place() {
|
|
mut a := [1, 2, 3, 4]
|
|
a.reverse_in_place()
|
|
assert a == [4, 3, 2, 1]
|
|
mut b := ['a', 'b', 'c']
|
|
b.reverse_in_place()
|
|
assert b == ['c', 'b', 'a']
|
|
mut c := [[1, 2], [3, 4], [5, 6]]
|
|
c.reverse_in_place()
|
|
assert c == [[5, 6], [3, 4], [1, 2]]
|
|
}
|
|
|
|
fn test_array_int_pop() {
|
|
mut a := [1, 2, 3, 4, 5]
|
|
assert a.len == 5
|
|
x := a.last()
|
|
y := a.pop()
|
|
assert x == y
|
|
assert a.len == 4
|
|
z := a.pop()
|
|
assert a.len == 3
|
|
assert z == 4
|
|
x1 := a.pop()
|
|
x2 := a.pop()
|
|
final := a.pop()
|
|
assert final == 1
|
|
}
|
|
|
|
fn test_array_string_pop() {
|
|
mut a := ['abc', 'def', 'xyz']
|
|
assert a.len == 3
|
|
assert a.pop() == 'xyz'
|
|
assert a.pop() == 'def'
|
|
assert a.pop() == 'abc'
|
|
assert a.len == 0
|
|
// assert a.cap == 3
|
|
}
|
|
|
|
fn test_array_first() {
|
|
a := [3]
|
|
assert a.first() == 3
|
|
b := [1, 2, 3, 4]
|
|
assert b.first() == 1
|
|
c := ['abc', 'def']
|
|
assert c.first()[0] == `a`
|
|
s := [Chunk{'a'}]
|
|
assert s.first().val == 'a'
|
|
}
|
|
|
|
fn test_array_last() {
|
|
a := [3]
|
|
assert a.last() == 3
|
|
b := [1, 2, 3, 4]
|
|
assert b.last() == 4
|
|
c := ['abc', 'def']
|
|
assert c.last()[0] == `d`
|
|
s := [Chunk{'a'}]
|
|
assert s.last().val == 'a'
|
|
}
|
|
|
|
[direct_array_access]
|
|
fn test_direct_array_access() {
|
|
mut a := [11, 22, 33, 44]
|
|
assert a[0] == 11
|
|
assert a[2] == 33
|
|
x := a[0]
|
|
a[0] = 21
|
|
a[1] += 2
|
|
a[2] = x + 3
|
|
a[3] -= a[1]
|
|
assert a == [21, 24, 14, 20]
|
|
}
|
|
|
|
[direct_array_access]
|
|
fn test_direct_array_access_via_ptr() {
|
|
mut b := [11, 22, 33, 44]
|
|
unsafe {
|
|
mut a := &b
|
|
assert a[0] == 11
|
|
assert a[2] == 33
|
|
x := a[0]
|
|
a[0] = 21
|
|
a[1] += 2
|
|
a[2] = x + 3
|
|
a[3] -= a[1]
|
|
assert a == [21, 24, 14, 20]
|
|
}
|
|
}
|
|
|
|
fn test_push_arr_string_free() {
|
|
mut lines := ['hi']
|
|
s := 'a' + 'b'
|
|
lines << s
|
|
// make sure the data in the array is valid after freeing the string
|
|
unsafe { s.free() }
|
|
//
|
|
println(lines)
|
|
assert lines.len == 2
|
|
assert lines[0] == 'hi'
|
|
assert lines[1] == 'ab'
|
|
}
|
|
|
|
const (
|
|
grid_size_1 = 2
|
|
grid_size_2 = 3
|
|
grid_size_3 = 4
|
|
cell_value = 123
|
|
)
|
|
|
|
fn test_multidimensional_array_initialization_with_consts() {
|
|
mut data := [][][]int{len: grid_size_1, init: [][]int{len: grid_size_2, init: []int{len: grid_size_3, init: cell_value}}}
|
|
assert data.len == grid_size_1
|
|
assert data[0].len == grid_size_2
|
|
assert data[0][0].len == grid_size_3
|
|
assert data[0][0][0] == cell_value
|
|
assert data[1][1][1] == cell_value
|
|
}
|
|
|
|
fn test_multi_array_prepend() {
|
|
mut a := [][]int{}
|
|
a.prepend([1, 2, 3])
|
|
assert a == [[1, 2, 3]]
|
|
mut b := [][]int{}
|
|
b.prepend([[1, 2, 3]])
|
|
assert b == [[1, 2, 3]]
|
|
}
|
|
|
|
fn test_multi_array_insert() {
|
|
mut a := [][]int{}
|
|
a.insert(0, [1, 2, 3])
|
|
assert a == [[1, 2, 3]]
|
|
mut b := [][]int{}
|
|
b.insert(0, [[1, 2, 3]])
|
|
assert b == [[1, 2, 3]]
|
|
}
|
|
|
|
fn test_multi_array_in() {
|
|
a := [[1]]
|
|
println([1] in a)
|
|
assert [1] in a
|
|
}
|
|
|
|
fn test_any_type_array_contains() {
|
|
a := [true, false]
|
|
assert a.contains(true)
|
|
assert true in a
|
|
assert a.contains(false)
|
|
assert false in a
|
|
b := [i64(2), 3, 4]
|
|
assert b.contains(i64(3))
|
|
assert 5 !in b
|
|
c := [[1], [2]]
|
|
assert c.contains([1])
|
|
assert [2] in c
|
|
assert [3] !in c
|
|
}
|
|
|
|
struct Person {
|
|
name string
|
|
nums []int
|
|
kv map[string]string
|
|
}
|
|
|
|
fn test_struct_array_of_multi_type_in() {
|
|
ivan := Person{
|
|
name: 'ivan'
|
|
nums: [1, 2, 3]
|
|
kv: {
|
|
'aaa': '111'
|
|
}
|
|
}
|
|
people := [
|
|
Person{
|
|
name: 'ivan'
|
|
nums: [1, 2, 3]
|
|
kv: {
|
|
'aaa': '111'
|
|
}
|
|
},
|
|
Person{
|
|
name: 'bob'
|
|
nums: [2]
|
|
kv: {
|
|
'bbb': '222'
|
|
}
|
|
},
|
|
]
|
|
println(ivan in people)
|
|
println('TODO: Map eq')
|
|
// assert ivan in people
|
|
}
|
|
|
|
fn test_struct_array_of_multi_type_index() {
|
|
ivan := Person{
|
|
name: 'ivan'
|
|
nums: [1, 2, 3]
|
|
kv: {
|
|
'aaa': '111'
|
|
}
|
|
}
|
|
people := [
|
|
Person{
|
|
name: 'ivan'
|
|
nums: [1, 2, 3]
|
|
kv: {
|
|
'aaa': '111'
|
|
}
|
|
},
|
|
Person{
|
|
name: 'bob'
|
|
nums: [2]
|
|
kv: {
|
|
'bbb': '222'
|
|
}
|
|
},
|
|
]
|
|
println(people.index(ivan))
|
|
assert people.index(ivan) == 0
|
|
}
|
|
|
|
struct Coord {
|
|
x int
|
|
y int
|
|
z int
|
|
}
|
|
|
|
fn test_array_struct_contains() {
|
|
mut coords := []Coord{}
|
|
coord_1 := Coord{
|
|
x: 1
|
|
y: 2
|
|
z: -1
|
|
}
|
|
coords << coord_1
|
|
exists := coord_1 in coords
|
|
not_exists := coord_1 !in coords
|
|
println('`exists`: $exists and `not exists`: $not_exists')
|
|
assert exists == true
|
|
assert not_exists == false
|
|
}
|
|
|
|
fn test_array_struct_ref_contains() {
|
|
mut coords := []&Coord{}
|
|
coord_1 := &Coord{
|
|
x: 1
|
|
y: 2
|
|
z: -1
|
|
}
|
|
coords << coord_1
|
|
exists := coord_1 in coords
|
|
println(exists)
|
|
assert exists == true
|
|
}
|
|
|
|
fn test_array_struct_ref_index() {
|
|
mut coords := []&Coord{}
|
|
coord_1 := &Coord{
|
|
x: 1
|
|
y: 2
|
|
z: -1
|
|
}
|
|
coords << coord_1
|
|
println(coords.index(coord_1))
|
|
assert coords.index(coord_1) == 0
|
|
}
|
|
|
|
fn test_array_of_array_append() {
|
|
mut x := [][]int{len: 4}
|
|
println(x) // OK
|
|
x[2] << 123 // RTE
|
|
println(x)
|
|
assert '$x' == '[[], [], [123], []]'
|
|
}
|
|
|
|
fn test_array_of_map_insert() {
|
|
mut x := []map[string]int{len: 4}
|
|
println(x) // OK
|
|
x[2]['123'] = 123 // RTE
|
|
println(x)
|
|
println('TODO: Map eq')
|
|
// assert '$x' == "[{}, {}, {'123': 123}, {}]"
|
|
}
|
|
|
|
fn test_multi_fixed_array_init() {
|
|
a := [3][3]int{}
|
|
assert '$a' == '[[0, 0, 0], [0, 0, 0], [0, 0, 0]]'
|
|
}
|
|
|
|
struct Numbers {
|
|
odds []int
|
|
evens []int
|
|
}
|
|
|
|
fn test_array_of_multi_filter() {
|
|
arr := [1, 2, 3, 4, 5]
|
|
nums := Numbers{
|
|
odds: arr.filter(it % 2 == 1)
|
|
evens: arr.filter(it % 2 == 0)
|
|
}
|
|
println(nums)
|
|
assert nums.odds == [1, 3, 5]
|
|
assert nums.evens == [2, 4]
|
|
}
|
|
|
|
fn test_array_of_multi_map() {
|
|
arr := [1, 3, 5]
|
|
nums := Numbers{
|
|
odds: arr.map(it + 2)
|
|
evens: arr.map(it * 2)
|
|
}
|
|
println(nums)
|
|
assert nums.odds == [3, 5, 7]
|
|
assert nums.evens == [2, 6, 10]
|
|
}
|
|
|
|
fn test_multi_fixed_array_with_default_init() {
|
|
a := [3][3]int{init: [3]int{init: 10}}
|
|
println(a)
|
|
assert a == [[10, 10, 10]!, [10, 10, 10]!, [10, 10, 10]!]!
|
|
}
|
|
|
|
struct Abc {
|
|
mut:
|
|
x i64
|
|
y i64
|
|
z i64
|
|
}
|
|
|
|
fn test_clone_of_same_elem_size_array() {
|
|
mut arr := []Abc{}
|
|
arr << Abc{1, 2, 3}
|
|
arr << Abc{2, 3, 4}
|
|
arr2 := arr.clone()
|
|
println(arr2)
|
|
assert arr2 == [Abc{1, 2, 3}, Abc{2, 3, 4}]
|
|
}
|
|
|
|
pub fn example<T>(mut arr []T) []T {
|
|
return arr.clone()
|
|
}
|
|
|
|
fn test_generic_mutable_arrays() {
|
|
mut arr := [1, 2, 3]
|
|
assert example(mut arr) == [1, 2, 3]
|
|
}
|