LWmap

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Class LWmap

Object
   |
   +--Lens
         |
         +--LWmap

class LWmap
extends Lens

Maps different lenses over different properties; it is a generalization of LMap.

It has a slightly strange calling convention, to wit:


 
> wmap = new LWmap([prop1, prop2, prop3], lens1, prop4, lens2)

This will run lens1 over prop1, prop2, and prop3's values and lens2 on prop4. Any other properties are mapped through the id lens. There is an optional final argument, which may be set to false in order to have the presence of other properties constitute an error, e.g.:


 
> wmap_strict = new LWmap(p1, l1, [p2, p3], l2, false)
 
> wmap_strict.get({ p4: _ }) // _ is any value
 
error!

Defined in lens.js

Field Summary
`Object`	`name`

Fields inherited from class Lens


   name

Constructor Summary
`LWmap()`

Method Summary
`Object`	`get(c)`
`Object`	`putback(a, c)`

Methods inherited from class Lens



error, getput, putget, putput, get_is, putback_is, get_throws, putback_throws

Field Detail

name

Object name

Constructor Detail