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Add 'use' functionality; remove most global vars

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John Alanbrook
2024-02-27 16:09:15 +00:00
parent 4351b4bf20
commit de74b42be2
19 changed files with 365 additions and 382 deletions
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133
scripts/diff.js
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@@ -1,114 +1,5 @@
function deep_copy(from) { return json.decode(json.encode(from)); }
var walk_up_get_prop = function(obj, prop, endobj) {
var props = [];
var cur = obj;
while (cur !== Object.prototype) {
if (cur.hasOwn(prop))
props.push(cur[prop]);
cur = cur.__proto__;
}
return props;
};
/* Deeply remove source keys from target, not removing objects */
function unmerge(target, source) {
for (var key in source) {
if (typeof source[key] === 'object' && !Array.isArray(source[key]))
unmerge(target[key], source[key]);
else
delete target[key];
}
};
/* Deeply merge two objects, not clobbering objects on target with objects on source */
function deep_merge(target, source)
{
console.warn("Doing a deep merge ...");
for (var key in source) {
if (typeof source[key] === 'object' && !Array.isArray(source[key])) {
console.warn(`Deeper merge on ${key}`);
deep_merge(target[key], source[key]);
}
else {
console.warn(`Setting key ${key}`);
target[key] = source[key];
}
}
};
function equal(x,y) {
if (typeof x === 'object')
return json.encode(x) === json.encode(y);
return x === y;
};
function diffassign(target, from) {
if (Object.empty(from)) return;
for (var e in from) {
if (typeof from[e] === 'object') {
if (!target.hasOwnProperty(e))
target[e] = from[e];
else
diffassign(target[e], from[e]);
} else {
if (from[e] === "DELETE") {
delete target[e];
} else {
target[e] = from[e];
}
}
}
};
function objdiff(from,to)
{
var ret = {};
if (!to)
return ediff(from,{});
Object.entries(from).forEach(function([key,v]) {
if (typeof v === 'function') return;
if (typeof v === 'undefined') return;
if (Array.isArray(v)) {
if (!Array.isArray(to[key]) || v.length !== to[key].length)
ret[key] = Object.values(ediff(v, []));
var diff = ediff(from[key], to[key]);
if (diff && !Object.empty(diff))
ret[key] = Object.values(ediff(v,[]));
return;
}
if (typeof v === 'object') {
var diff = ediff(v, to[key]);
if (diff && !Object.empty(diff))
ret[key] = diff;
return;
}
if (typeof v === 'number') {
if (!to || v !== to[key])
ret[key] = v;
return;
}
if (!to || v !== to[key])
ret[key] = v;
});
if (Object.empty(ret)) return undefined;
return ret;
}
function valdiff(from,to)
{
if (typeof from !== typeof to) return from;
@@ -129,17 +20,6 @@ function valdiff(from,to)
return undefined;
}
/* Returns the json encoded object, assuming it has an implementation it must check through */
function impl_json(obj)
{
}
function ndiff(from,to)
{
}
function ediff(from,to)
{
var ret = {};
@@ -189,13 +69,6 @@ function ediff(from,to)
ediff.doc = "Given a from and to object, returns an object that, if applied to from, will make it the same as to. Does not include deletion; it is only additive.";
function subdiff(from,to)
{
}
subdiff.doc = "Given a from and to object, returns a list of properties that must be deleted from the 'from' object to make it like the 'to' object.";
function samediff(from, to)
{
var same = [];
@@ -225,6 +98,8 @@ function samediff(from, to)
samediff.doc = "Given a from and to object, returns an array of keys that are the same on from as on to.";
function cleandiff(from, to)
{
return {
deep_copy,
ediff,
samediff,
}