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.walk2(..) refining...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2019-08-24 18:39:37 +03:00
parent 2bd7aa5c5b
commit 7a56564835
1 changed files with 23 additions and 26 deletions
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49
ui (gen4)/lib/widget/browse2.js
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@ -464,7 +464,7 @@ object.mixinFlat(function(){}, {
var Make =
module.Make =
object.Constructor('Make', Items)
object.Constructor('Make', Items)
@ -1935,11 +1935,8 @@ var BaseBrowserPrototype = {
//
// options format:
// {
// reverse: <bool>,
//
// // XXX ???
// //reverseCall: <bool>,
//
// reverse: <bool> | 'full',
//
// iterateNonIterable: <bool>,
// iterateCollapsed: <bool>,
@ -1964,9 +1961,6 @@ var BaseBrowserPrototype = {
// }
//
//
// XXX add i and path handling...
// XXX revise func(..) return value semantics...
// should false be treated the same as null and undefined???
walk2: function(func, options){
var that = this
var [func, options={}, path=[], context={}] = [...arguments]
@ -1980,8 +1974,6 @@ var BaseBrowserPrototype = {
Object.create(this.options || {}),
options)
// options.reverse...
// XXX
var reverseCall = !!options.reverseCall
var handleReverse = function(lst){
return options.reverse ?
lst.slice().reverse()
@ -2000,7 +1992,7 @@ var BaseBrowserPrototype = {
var iterateNonIterable = !!(options.iterateAll || options.iterateNonIterable)
var iterateCollapsed = !!(options.iterateAll || options.iterateCollapsed)
// XXX
var includeInlinedBlocks = !!options.includeInlinedBlocks
//var includeInlinedBlocks = !!options.includeInlinedBlocks
// stopping mechanics...
var res, StopException
@ -2034,24 +2026,29 @@ var BaseBrowserPrototype = {
: elems }
// handle item...
var item =
// skip non-iterable...
(!iterateNonIterable && elem.noniterable) ?
[]
: [(elem instanceof Array || elem instanceof BaseBrowser) ?
// skip inlined block items...
[]
: func.call(that, elem,
context.index++,
// NOTE: path will be updated ONLY for non-inlined items...
p = path.concat(elem.id),
next, stop) || []]
.flat()
// skip non-iterable and inlined block items...
var handleItem = !((!iterateNonIterable && elem.noniterable)
|| (elem instanceof Array || elem instanceof BaseBrowser))
var p = handleItem ?
path.concat(elem.id)
: p
var item
// NOTE: this will handle the item once and then re-return the value...
var getItem = function(){
return (item =
item !== undefined ?
item
: handleItem ?
[ func.call(that, elem, context.index++, p, next, stop) ].flat()
: []) }
// pre-call the item if options.reverse is not set to 'full'...
options.reverse == 'full'
|| getItem()
return [
// item...
...!options.reverse ?
item
getItem()
: [],
// children...
...children instanceof Array ?
@ -2064,7 +2061,7 @@ var BaseBrowserPrototype = {
: [],
// item (in reverse)...
...options.reverse ?
item
getItem()
: [], ] } }