flynx/serialize.js
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refactoring...

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Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
This commit is contained in:
Alex A. Naanou 2025-12-23 19:33:22 +03:00
parent 6c7f043d18
commit 9c36299e25
1 changed files with 26 additions and 16 deletions
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42
serialize2.js
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@ -22,31 +22,41 @@ var RECURSIVE = '<RECURSIVE%>'
//---------------------------------------------------------------------
//
// serialize(obj[, space[, indent]])
// serialize(obj[, indent[, depth]])
// -> str
//
// serialize(obj, path, seen, space, indent)
// indent can be:
// number - number of spaces to use for indent
// string - string to use for indenting
//
//
// serialize(obj, path, seen, indent, depth)
// -> str
//
// XXX add function support...
// XXX need to destinguish between map key and value in path...
var serialize =
module.serialize =
function(obj, path=[], seen=new Map(), space, indent=0){
function(obj, path=[], seen=new Map(), indent, depth=0){
// args...
var args = [...arguments].slice(1)
if(typeof(args[0]) == 'number'){
space = args.shift() }
if(typeof(args[0]) == 'number'){
if(typeof(args[0]) == 'number'
|| typeof(args[0]) == 'string'){
indent = args.shift() }
indent = typeof(indent) == 'number' ?
' '.repeat(indent)
: indent
if(typeof(args[0]) == 'number'){
depth = args.shift() }
;[path, seen] = args
path ??= []
seen ??= new Map()
// recursive...
var p = seen.get(obj)
if(p != null){
// NOTE: serialize(..) is always printed flat here, regardless of space/indent...
// NOTE: serialize(..) is always printed flat here, regardless of indent/depth...
return RECURSIVE.replace('%', serialize(p)) }
// XXX functions...
@ -65,7 +75,7 @@ function(obj, path=[], seen=new Map(), space, indent=0){
INFINITY
: obj === -Infinity ?
NEG_INFINITY
: JSON.stringify(obj, null, space) }
: JSON.stringify(obj, null, indent) }
// objects...
seen.set(obj, path)
@ -80,14 +90,14 @@ function(obj, path=[], seen=new Map(), space, indent=0){
for(var i=0; i < obj.length; i++){
elems.push(
i in obj ?
serialize(obj[i], [...path, i], seen, space, indent+1)
serialize(obj[i], [...path, i], seen, indent, depth+1)
: EMPTY) }
} else if(obj instanceof Map){
pre = 'Map(['
post = '])'
elems = [
serialize([...obj], path, seen, space, indent)
serialize([...obj], path, seen, indent, depth)
.slice(1, -1)
.trim() ]
@ -95,7 +105,7 @@ function(obj, path=[], seen=new Map(), space, indent=0){
pre = 'Set(['
post = '])'
elems = [
serialize([...obj], path, seen, space, indent)
serialize([...obj], path, seen, indent, depth)
.slice(1, -1)
.trim() ]
@ -105,16 +115,16 @@ function(obj, path=[], seen=new Map(), space, indent=0){
for(var [k, v] of Object.entries(obj)){
elems.push(`${
JSON.stringify(k)
}:${ space != null ? ' ' : '' }${
serialize(v, [...path, k], seen, space, indent+1)
}:${ indent != null ? ' ' : '' }${
serialize(v, [...path, k], seen, indent, depth+1)
// relevant for pretty-printing only...
.trimLeft()
}`) } }
// handle indent...
if(space != null){
i = ' '.repeat(indent * space)
s = i + ' '.repeat(space)
if(indent != null){
i = indent.repeat(depth)
s = i + indent
if(elems.length > 0){
pre = pre + '\n' + s
post = '\n' + i + post