mirror of
https://github.com/vlang/v.git
synced 2023-08-10 21:13:21 +03:00
41 lines
615 B
V
41 lines
615 B
V
module io
|
|
|
|
struct Buf {
|
|
pub:
|
|
bytes []byte
|
|
mut:
|
|
i int
|
|
}
|
|
|
|
fn (mut b Buf) read(mut buf []byte) ?int {
|
|
if !(b.i < b.bytes.len) {
|
|
return eof
|
|
}
|
|
n := copy(buf, b.bytes[b.i..b.bytes.len])
|
|
b.i += n
|
|
return n
|
|
}
|
|
|
|
fn test_read_all() {
|
|
buf := Buf{
|
|
bytes: '123'.repeat(10).bytes()
|
|
}
|
|
res := read_all(buf) or {
|
|
assert false
|
|
''.bytes()
|
|
}
|
|
assert res == '123'.repeat(10).bytes()
|
|
}
|
|
|
|
/*
|
|
TODO: This test failed by a bug of read_all
|
|
fn test_read_all_huge() {
|
|
buf := Buf{bytes: "123".repeat(100000).bytes()}
|
|
res := read_all(buf) or {
|
|
assert false
|
|
"".bytes()
|
|
}
|
|
assert res == "123".repeat(100000).bytes()
|
|
}
|
|
*/
|