Tony Garnock-Jones uploaded a new version of System to project The Trunk: http://source.squeak.org/trunk/System-tonyg.1054.mcz
==================== Summary ====================
Name: System-tonyg.1054 Author: tonyg Time: 30 January 2019, 5:22:17.31393 pm UUID: 5089201f-7cb8-47e9-9426-f23c1e92c977 Ancestors: System-mt.1053
Improve promise resolution error handling via #fulfillWith:.
=============== Diff against System-mt.1053 ===============
Item was changed: ----- Method: Project>>future:send:at:args: (in category 'futures') ----- future: receiver send: aSelector at: deltaMSecs args: args "Send a message deltaSeconds into the future. Answers a Promise that will be resolved at some time in the future." | pr closure | pr := Promise new. + closure := [pr fulfillWith: [receiver perform: aSelector withArguments: args]]. - closure := [pr resolveWith: (receiver perform: aSelector withArguments: args)]. deltaMSecs = 0 ifTrue: [self addDeferredUIMessage: closure] ifFalse: [ [ (Delay forMilliseconds: deltaMSecs) wait. self addDeferredUIMessage: closure ] forkAt: Processor userSchedulingPriority + 1. ]. ^pr !