From d18c2d6c65410e356057bdcd970bccc7ceffb8e0 Mon Sep 17 00:00:00 2001 From: Matthew Wild Date: Thu, 18 Oct 2018 18:03:31 +0100 Subject: util.promise: Add promise.try() --- util/promise.lua | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'util') diff --git a/util/promise.lua b/util/promise.lua index b5660488..b1c6be02 100644 --- a/util/promise.lua +++ b/util/promise.lua @@ -51,6 +51,7 @@ local function new_resolve_functions(p) if resolved then return; end resolved = true; if is_promise(e) then + print ("WOAH") assert(false) e:next(new_resolve_functions(p)); elseif promise_settle(p, "rejected", next_rejected, p._pending_on_rejected, e) then p.reason = e; @@ -117,6 +118,10 @@ local function reject(v) end); end +local function try(f) + return resolve():next(function () return f(); end); +end + function promise_methods:next(on_fulfilled, on_rejected) return new(function (resolve, reject) --luacheck: ignore 431/resolve 431/reject self:_next( @@ -142,4 +147,5 @@ return { reject = reject; all = all; race = race; + try = try; } -- cgit v1.2.3