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package main
type MySlice [32]byte
func main() {
l := 5
foo := []int{1, 2, 4, 5}
bar := make([]int, l-2, l)
println("foo is nil?", foo == nil, nil == foo)
printslice("foo", foo)
printslice("bar", bar)
printslice("foo[1:2]", foo[1:2])
println("sum foo:", sum(foo))
// creating a slice with uncommon len, cap types
assert(len(make([]int, makeInt(2), makeInt(3))) == 2)
assert(len(make([]int, makeInt8(2), makeInt8(3))) == 2)
assert(len(make([]int, makeInt16(2), makeInt16(3))) == 2)
assert(len(make([]int, makeInt32(2), makeInt32(3))) == 2)
assert(len(make([]int, makeInt64(2), makeInt64(3))) == 2)
assert(len(make([]int, makeUint(2), makeUint(3))) == 2)
assert(len(make([]int, makeUint8(2), makeUint8(3))) == 2)
assert(len(make([]int, makeUint16(2), makeUint16(3))) == 2)
assert(len(make([]int, makeUint32(2), makeUint32(3))) == 2)
assert(len(make([]int, makeUint64(2), makeUint64(3))) == 2)
assert(len(make([]int, makeUintptr(2), makeUintptr(3))) == 2)
// indexing into a slice with uncommon index types
assert(foo[int(2)] == 4)
assert(foo[int8(2)] == 4)
assert(foo[int16(2)] == 4)
assert(foo[int32(2)] == 4)
assert(foo[int64(2)] == 4)
assert(foo[uint(2)] == 4)
assert(foo[uint8(2)] == 4)
assert(foo[uint16(2)] == 4)
assert(foo[uint32(2)] == 4)
assert(foo[uint64(2)] == 4)
assert(foo[uintptr(2)] == 4)
// slicing with uncommon low, high types
assert(len(foo[int(1):int(3)]) == 2)
assert(len(foo[int8(1):int8(3)]) == 2)
assert(len(foo[int16(1):int16(3)]) == 2)
assert(len(foo[int32(1):int32(3)]) == 2)
assert(len(foo[int64(1):int64(3)]) == 2)
assert(len(foo[uint(1):uint(3)]) == 2)
assert(len(foo[uint8(1):uint8(3)]) == 2)
assert(len(foo[uint16(1):uint16(3)]) == 2)
assert(len(foo[uint32(1):uint32(3)]) == 2)
assert(len(foo[uint64(1):uint64(3)]) == 2)
assert(len(foo[uintptr(1):uintptr(3)]) == 2)
// slicing an array with uncommon low, high types
arr := [4]int{1, 2, 4, 5}
assert(len(arr[int(1):int(3)]) == 2)
assert(len(arr[int8(1):int8(3)]) == 2)
assert(len(arr[int16(1):int16(3)]) == 2)
assert(len(arr[int32(1):int32(3)]) == 2)
assert(len(arr[int64(1):int64(3)]) == 2)
assert(len(arr[uint(1):uint(3)]) == 2)
assert(len(arr[uint8(1):uint8(3)]) == 2)
assert(len(arr[uint16(1):uint16(3)]) == 2)
assert(len(arr[uint32(1):uint32(3)]) == 2)
assert(len(arr[uint64(1):uint64(3)]) == 2)
assert(len(arr[uintptr(1):uintptr(3)]) == 2)
// copy
println("copy foo -> bar:", copy(bar, foo))
printslice("bar", bar)
// append
var grow []int
println("slice is nil?", grow == nil, nil == grow)
printslice("grow", grow)
grow = append(grow, 42)
printslice("grow", grow)
grow = append(grow, -1, -2)
printslice("grow", grow)
grow = append(grow, foo...)
printslice("grow", grow)
grow = append(grow)
printslice("grow", grow)
grow = append(grow, grow...)
printslice("grow", grow)
// append string to []bytes
bytes := append([]byte{1, 2, 3}, "foo"...)
print("bytes: len=", len(bytes), " cap=", cap(bytes), " data:")
for _, n := range bytes {
print(" ", n)
}
println()
// Verify the fix in https://github.com/tinygo-org/tinygo/pull/119
var unnamed [32]byte
var named MySlice
assert(len(unnamed[:]) == 32)
assert(len(named[:]) == 32)
}
func printslice(name string, s []int) {
print(name, ": len=", len(s), " cap=", cap(s), " data:")
for _, n := range s {
print(" ", n)
}
println()
}
func sum(l []int) int {
sum := 0
for _, n := range l {
sum += n
}
return sum
}
func assert(ok bool) {
if !ok {
panic("assert failed")
}
}
// Helper functions used to hide const values from the compiler during IR
// construction.
func makeInt(x int) int { return x }
func makeInt8(x int8) int8 { return x }
func makeInt16(x int16) int16 { return x }
func makeInt32(x int32) int32 { return x }
func makeInt64(x int64) int64 { return x }
func makeUint(x uint) uint { return x }
func makeUint8(x uint8) uint8 { return x }
func makeUint16(x uint16) uint16 { return x }
func makeUint32(x uint32) uint32 { return x }
func makeUint64(x uint64) uint64 { return x }
func makeUintptr(x uintptr) uintptr { return x }
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