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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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16
examples/websocket/client-server/client.v
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@ -8,7 +8,7 @@ import term
// it connects to the server who will broadcast your messages
// to all other connected clients
fn main() {
mut ws := start_client()?
mut ws := start_client()!
println(term.green('client $ws.id ready'))
println('Write message and enter to send...')
for {
@ -16,7 +16,7 @@ fn main() {
if line == '' {
break
}
ws.write_string(line)?
ws.write_string(line)!
}
ws.close(1000, 'normal') or { println(term.red('panicing $err')) }
unsafe {
@ -24,23 +24,23 @@ fn main() {
}
}
fn start_client() ?&websocket.Client {
mut ws := websocket.new_client('ws://localhost:30000')?
fn start_client() !&websocket.Client {
mut ws := websocket.new_client('ws://localhost:30000')!
// mut ws := websocket.new_client('wss://echo.websocket.org:443')?
// use on_open_ref if you want to send any reference object
ws.on_open(fn (mut ws websocket.Client) ? {
ws.on_open(fn (mut ws websocket.Client) ! {
println(term.green('websocket connected to the server and ready to send messages...'))
})
// use on_error_ref if you want to send any reference object
ws.on_error(fn (mut ws websocket.Client, err string) ? {
ws.on_error(fn (mut ws websocket.Client, err string) ! {
println(term.red('error: $err'))
})
// use on_close_ref if you want to send any reference object
ws.on_close(fn (mut ws websocket.Client, code int, reason string) ? {
ws.on_close(fn (mut ws websocket.Client, code int, reason string) ! {
println(term.green('the connection to the server successfully closed'))
})
// on new messages from other clients, display them in blue text
ws.on_message(fn (mut ws websocket.Client, msg &websocket.Message) ? {
ws.on_message(fn (mut ws websocket.Client, msg &websocket.Message) ! {
if msg.payload.len > 0 {
message := msg.payload.bytestr()
println(term.blue('$message'))