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dev: clone property descriptors in Context

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This commit is contained in:
KernelDeimos 2024-10-19 03:45:33 -04:00
parent c2a475f3c0
commit 6e5d5c2021
1 changed files with 17 additions and 4 deletions
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21
src/putility/src/libs/context.js
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@ -18,8 +18,20 @@
*/
class Context {
constructor (values) {
for ( const k in values ) this[k] = values[k];
constructor (values = {}) {
const descs = Object.getOwnPropertyDescriptors(values);
for ( const k in descs ) {
Object.defineProperty(this, k, descs[k]);
}
}
follow (source, keys) {
const values = {};
for ( const k of keys ) {
Object.defineProperty(values, k, {
get: () => source[k]
});
}
return this.sub(values);
}
sub (newValues) {
if ( newValues === undefined ) newValues = {};
@ -36,9 +48,10 @@ class Context {
}
}
for ( const k in newValues ) {
const descs = Object.getOwnPropertyDescriptors(newValues);
for ( const k in descs ){
if ( alreadyApplied[k] ) continue;
sub[k] = newValues[k];
Object.defineProperty(sub, k, descs[k]);
}
return sub;