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some minor refactoring...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2018-07-24 15:30:43 +03:00
parent 599d7287b9
commit 906efabc69
2 changed files with 33 additions and 25 deletions
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diff.js
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@ -7,6 +7,12 @@
(function(require){ var module={} // make module AMD/node compatible...
/*********************************************************************/
/*********************************************************************/
var ANY = {type: 'ANY_PLACEHOLDER'}
var NONE = {type: 'NONE_PLACEHOLDER'}
var EMPTY = {type: 'EMPTY_PLACEHOLDER'}
@ -385,7 +391,25 @@ var Types = {
// Type handlers...
handlers: new Map(),
has: proxy('handlers.has'),
get: proxy('handlers.get'),
// Get handler...
//
// .get(object)
// .get(handler-type)
// .get(handler-type-name)
// -> handler | null
//
get: function(o){
var h = this.handlers
// get the type if there is no direct match...
o = !h.has(o) ? this.detect(o) : o
// resolve aliases...
do {
o = h.get(o)
} while(o != null && h.has(o))
return o
},
set: proxy('handlers.set',
function(res, key, handler){
// auto-alias...
@ -426,25 +450,6 @@ var Types = {
return this.types.map(function(e){ return e.name || e }) },
// Get handler...
//
// .getHandler(object)
// .getHandler(handler-type)
// .getHandler(handler-type-name)
// -> handler | null
//
getHandler: function(o){
// get the type if there is no direct match...
o = !this.has(o) ? this.detect(o) : o
// resolve aliases...
do {
o = this.get(o)
} while(o != null && this.has(o))
return o
},
// Detect handler type...
//
// Detect handler type for A...
@ -515,7 +520,7 @@ var Types = {
obj.type = obj.type || (type.name ? type.name : type)
// get the handler + resolve aliases...
var handler = this.getHandler(type)
var handler = this.get(type)
// unhandled type...
if(handler == null
@ -547,7 +552,7 @@ var Types = {
// tree diff...
} else {
var handler = this.getHandler(diff.type)
var handler = this.get(diff.type)
if(handler == null || !handler.walk){
throw new TypeError('Can\'t walk type: '+ diff.type)
}
@ -658,8 +663,11 @@ var Types = {
// Patch (update) obj via diff...
//
// XXX would need to let the type handlers handle themselves a-la .handle(..)
// XXX this needs to be able to replace obj or parts of it...
// XXX this does not work for:
// patch(diff(4,5), 4)
patch: function(diff, obj, options){
var that = this
var NONE = diff.placeholders.NONE
var EMPTY = diff.placeholders.EMPTY
var options = diff.options
@ -679,7 +687,7 @@ var Types = {
var key = change.path[change.path.length-1]
// XXX this needs to be able to replace the target...
this.getHandler(type).patch.call(this, target, key, change, options)
that.get(type).patch.call(that, target, key, change, options)
})
return obj
},
@ -848,7 +856,7 @@ Types.set(Object, {
// array item...
// XXX should this make this decision???
} else {
return this.getHandler(Array).patch.call(this, obj, key, change)
return this.get(Array).patch.call(this, obj, key, change)
}
return obj
},