"I was actually curious about this in Ruby as well, since Ruby also doesn't have the Smalltalk message syntax. "
Actually, it does when i said in my reply "The only other languages that have such an implementation are ObjC and Ruby which borrow this directly from Smalltalk." What I mean is that both ObjC and Ruby has a message based OOP system , like Smalltalk. http://rubylearning.com/blog/2010/11/03/do-you-understand-rubys-objects-messages-and-blocks/ On Sun, Oct 16, 2016 at 11:50 AM CodeDmitry <dimamakh...@gmail.com> wrote: > I was actually curious about this in Ruby as well, since Ruby also doesn't > have the Smalltalk message syntax. > > I figure that the magic behind it is that Smalltalk takes strings like > "dict > at: 'foo' put: 'bar'" and evaluates them into a JavaScript equivalent of > "dict['at:put:']('foo', 'bar')". > > Basically, my proof of concept(I cheated with regex to cut time): > > 'use strict'; > > var Dictionary = function Dictionary() { > this.dict = {}; > }; > Dictionary.prototype['at:put:'] = function(index, value) { > this.dict[index] = value; > }; > Object.defineProperty(Dictionary, 'new', { > get: function () { > return new this; > } > }); > > function st_eval(str) { > var x = str.match(/(dict)\s+(at):\s+'(foo)'\s+(put):\s+'(bar)'/); > var target = x[1]; > var callName = x[2] + ':' + x[4] + ':'; > var argv = [x[3], x[5]]; > var realTarget = eval(target); > realTarget[callName].apply(realTarget, argv); > } > > var dict = Dictionary.new; > console.log(dict); > //dict['at:put:']('foo', 'bar'); > console.log(dict); > st_eval("dict at: 'foo' put: 'bar'"); > console.log(dict); > > > > > > -- > View this message in context: > http://forum.world.st/How-do-Smalltalk-disambiguate-messages-tp4918946p4918957.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >
