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all: change optional to result of io (#16075)

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This commit is contained in:
yuyi
2022-10-16 14:28:57 +08:00
committed by GitHub
parent 6e46933c55
commit f6844e9766
187 changed files with 1885 additions and 1874 deletions
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8
vlib/io/reader.v
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@@ -44,7 +44,7 @@ mut:
// read_all reads all bytes from a reader until either a 0 length read
// or if read_to_end_of_stream is true then the end of the stream (`none`)
pub fn read_all(config ReadAllConfig) ?[]u8 {
pub fn read_all(config ReadAllConfig) ![]u8 {
mut r := config.reader
read_till_eof := config.read_to_end_of_stream
@@ -65,11 +65,11 @@ pub fn read_all(config ReadAllConfig) ?[]u8 {
// read_any reads any available bytes from a reader
// (until the reader returns a read of 0 length)
pub fn read_any(mut r Reader) ?[]u8 {
pub fn read_any(mut r Reader) ![]u8 {
mut b := []u8{len: io.read_all_len}
mut read := 0
for {
new_read := r.read(mut b[read..]) or { return none }
new_read := r.read(mut b[read..]) or { return error('none') }
read += new_read
if new_read == 0 {
break
@@ -83,5 +83,5 @@ pub fn read_any(mut r Reader) ?[]u8 {
// RandomReader represents a stream of data that can be read from at a random location
pub interface RandomReader {
read_from(pos u64, mut buf []u8) ?int
read_from(pos u64, mut buf []u8) !int
}