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added docs for type handler methods...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
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Alex A. Naanou 2018-07-31 02:32:29 +03:00
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@ -232,21 +232,85 @@ If types of the not equal object pair mismatch `'Basic'` is used and both are st
Adding new *synthetic* type handler: Adding new *synthetic* type handler:
```javascript ```javascript
ExtendedDiff.types.set('SomeType', { ExtendedDiff.types.set('SomeType', {
// Type check priority (optional)...
//
// Types are checked in order of occurrence in .handlers unless
// type .priority is set to a non 0 value.
//
// Default priorities:
// Text: 100
// Needs to run checks before 'Basic' as its targets are
// long strings that 'Basic' also catches.
// Basic: 50
// Needs to be run before we do other object checks.
// Object: -100
// Needs to run after everything else as it will match any
// set of objects.
//
// General guide:
// >50 - to be checked before 'Basic'
// <50 and >0 - after Basic but before unprioritized types
// <=50 and <0 - after unprioritized types but before Object
// <=100 - to be checked after Object -- this is a bit
// pointless in JavaScript.
//
// NOTE: when this is set to 0, then type will be checked in
// order of occurrence...
priority: null, priority: null,
// Check if obj is compatible (optional)...
//
// .check(obj[, options])
// -> bool
//
check: function(obj, options){ check: function(obj, options){
// ... // ...
}, },
// Handle/populate the diff of A and B...
//
// Input diff format:
// {
// type: <type-name>,
// }
//
handle: function(obj, diff, A, B, options){ handle: function(obj, diff, A, B, options){
// ... // ...
}, },
// Walk the diff...
//
// This will pass each change to func(..) and return its result...
//
// .walk(diff, func, path)
// -> res
//
// NOTE: by default this will not handle attributes (.attrs), so
// if one needs to handle them Object's .walk(..) should be
// explicitly called...
// Example:
// walk: function(diff, func, path){
// var res = []
//
// // handle specific diff stuff...
//
// return res
// // pass the .items handling to Object
// .concat(this.typeCall(Object, 'walk', diff, func, path))
// }
walk: function(diff, func, path){ walk: function(diff, func, path){
// ... // ...
}, },
// Patch the object...
//
patch: function(target, key, change, root, options){ patch: function(target, key, change, root, options){
// ... // ...
}, },
// Reverse the change in diff...
//
reverse: function(change){ reverse: function(change){
// ... // ...
}, },