Created
October 31, 2012 16:38
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simple Dependency injection in livescript
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| var Container, cnt; | |
| Container = (function(){ | |
| Container.displayName = 'Container'; | |
| var prototype = Container.prototype, constructor = Container; | |
| function Container(){ | |
| var ref$; | |
| ref$ = [{}, {}], this.registry = ref$[0], this.shared = ref$[1]; | |
| } | |
| prototype.set = function(name, opt, fn){ | |
| var registry; | |
| opt == null && (opt = {}); | |
| registry = (function(){ | |
| switch (false) { | |
| case opt['shared'] !== true: | |
| return this.shared; | |
| default: | |
| return this.registry; | |
| } | |
| }.call(this)); | |
| return registry[name] = { | |
| blk: fn | |
| }; | |
| }; | |
| prototype.get = function(name){ | |
| switch (false) { | |
| case this.registry[name] == null: | |
| return this.registry[name]['blk'](this); | |
| default: | |
| return (function(srv){ | |
| if (typeof srv['blk'] === 'function') { | |
| srv['blk'] = this.shared[name]['blk'](this); | |
| } | |
| return srv['blk']; | |
| }.call(this, this.shared[name])); | |
| } | |
| }; | |
| return Container; | |
| }()); | |
| cnt = new Container; | |
| cnt.set("name", null, function(cont){ | |
| return "mario"; | |
| }); | |
| cnt.set("surname", null, function(cont){ | |
| return "rossi"; | |
| }); | |
| cnt.set("label", null, function(cont){ | |
| return cont.get('name') + " " + cont.get('surname'); | |
| }); | |
| console.log(cnt.get('label')); |
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| class Container | |
| -> [@registry,@shared] = [{},{}] | |
| set: (name,opt={},fn) -> | |
| registry = switch | |
| | opt[\shared] == true => @shared | |
| | otherwise => @registry | |
| registry[name] = {blk:fn} | |
| get: (name) -> | |
| | @registry[name]? => @registry[name][\blk](@) | |
| | otherwise => | |
| let srv = @shared[name] | |
| srv[\blk] = @shared[name][\blk](@) if typeof srv[\blk] is \function | |
| srv[\blk] | |
| cnt= new Container | |
| cnt.set "name", null, (cont) -> "mario" | |
| cnt.set "surname", null, (cont) -> "rossi" | |
| cnt.set "label",null, (cont) -> "#{cont.get(\name)} #{cont.get(\surname)}" | |
| console.log cnt.get \label | |
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This is awesome. Thank you very much.
Do you think it's worth attempting to create a directory of these kinds of snippets somewhere?