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authorKim Alvefur <zash@zash.se>2018-10-18 13:33:19 +0200
committerKim Alvefur <zash@zash.se>2018-10-18 13:33:19 +0200
commitdd2f749996583ed2aba09906d83541718f4c8ecf (patch)
treec64225d1beb30845c35c079a93feb190c7c30d33 /util
parent681b25e42710b31a5cca6cf9c5b52cc811b6dcea (diff)
downloadprosody-dd2f749996583ed2aba09906d83541718f4c8ecf.tar.gz
prosody-dd2f749996583ed2aba09906d83541718f4c8ecf.zip
util.promise: Add a string representation
Diffstat (limited to 'util')
-rw-r--r--util/promise.lua4
1 files changed, 4 insertions, 0 deletions
diff --git a/util/promise.lua b/util/promise.lua
index 8b57c822..b5660488 100644
--- a/util/promise.lua
+++ b/util/promise.lua
@@ -1,6 +1,10 @@
local promise_methods = {};
local promise_mt = { __name = "promise", __index = promise_methods };
+function promise_mt:__tostring()
+ return "promise (" .. (self._state or "invalid") .. ")";
+end
+
local function is_promise(o)
local mt = getmetatable(o);
return mt == promise_mt;