aboutsummaryrefslogtreecommitdiffstats
path: root/util/promise.lua
diff options
context:
space:
mode:
Diffstat (limited to 'util/promise.lua')
-rw-r--r--util/promise.lua25
1 files changed, 25 insertions, 0 deletions
diff --git a/util/promise.lua b/util/promise.lua
index 07c9c4dc..6ebb0dd6 100644
--- a/util/promise.lua
+++ b/util/promise.lua
@@ -49,6 +49,9 @@ local function promise_settle(promise, new_state, new_next, cbs, value)
for _, cb in ipairs(cbs) do
cb(value);
end
+ -- No need to keep references to callbacks
+ promise._pending_on_fulfilled = nil;
+ promise._pending_on_rejected = nil;
return true;
end
@@ -101,6 +104,27 @@ local function all(promises)
end);
end
+local function all_settled(promises)
+ return new(function (resolve)
+ local count, total, results = 0, #promises, {};
+ for i = 1, total do
+ promises[i]:next(function (v)
+ results[i] = { status = "fulfilled", value = v };
+ count = count + 1;
+ if count == total then
+ resolve(results);
+ end
+ end, function (e)
+ results[i] = { status = "rejected", reason = e };
+ count = count + 1;
+ if count == total then
+ resolve(results);
+ end
+ end);
+ end
+ end);
+end
+
local function race(promises)
return new(function (resolve, reject)
for i = 1, #promises do
@@ -146,6 +170,7 @@ return {
resolve = resolve;
reject = reject;
all = all;
+ all_settled = all_settled;
race = race;
try = try;
is_promise = is_promise;