v/vlib/context/empty.v

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// This module defines the Context type, which carries deadlines, cancellation signals,
// and other request-scoped values across API boundaries and between processes.
// Based on: https://github.com/golang/go/tree/master/src/context
// Last commit: https://github.com/golang/go/commit/52bf14e0e8bdcd73f1ddfb0c4a1d0200097d3ba2
module context
import time
// An EmptyContext is never canceled, has no values, and has no deadline. It is not
// struct{}, since vars of this type must have distinct addresses.
pub type EmptyContext = int
pub fn (ctx &EmptyContext) deadline() ?time.Time {
return none
}
pub fn (ctx &EmptyContext) done() chan int {
ch := chan int{}
defer {
ch.close()
}
return ch
}
pub fn (ctx &EmptyContext) err() IError {
return none
}
pub fn (ctx &EmptyContext) value(key Key) ?Any {
return none
}
pub fn (ctx &EmptyContext) str() string {
if ctx == background {
return 'context.Background'
}
if ctx == todo {
return 'context.TODO'
}
return 'unknown empty Context'
}