op !

!

Defined in

• 5.2 Precedence and associativity — Precedence and associativity
• 5.3 Overloading and user-defined operators — Overloading built-in operators — op declarations in impl
• 1.6 Operators and delimiters — + - * / % ** +% -% % +| -| | & | ^ ~ << >> && || !
• 8.4 Chains — A chain links asynchronous steps so that either the whole chain is executed or the first unhandled error is returned.

Examples

let page = Users.get(id)
  -> (Orders.recent(it.id), Recs.for(it.id))
  -> (orders, recs) => Page{ orders, recs }
  ~> Audit.log("page", id)
  !> Timeout => Page.empty()
  within PAGE_DEADLINE
  retry 2

let html = await page

— 8.4 Chains

Related diagnostics

chained-comparison, not-callable, not-overloadable, operator-decl, range-not-iterable, invalid-char, it-outside-chain