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WIP: Start adding WeakMap + WeakSet support.

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This commit is contained in:
Ryan Roemer 2020-01-30 16:21:41 -08:00
parent 5d71c91e73
commit 06ddcfae03
3 changed files with 9 additions and 5 deletions
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1
.travis.yml
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@ -3,7 +3,6 @@ dist: trusty
language: node_js
node_js:
- "8"
- "10"
- "12"
- "13"

12
index.js
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@ -1,9 +1,11 @@
'use strict';
/* global Map:readonly, Set:readonly, ArrayBuffer:readonly */
/* global Map:readonly, WeakMap:readonly, Set:readonly, WeakSet:readonly, ArrayBuffer:readonly */
var hasElementType = typeof Element !== 'undefined';
var hasMap = typeof Map === 'function';
var hasWeakMap = typeof WeakMap === 'function';
var hasSet = typeof Set === 'function';
var hasWeakSet = typeof WeakSet === 'function';
var hasArrayBuffer = typeof ArrayBuffer === 'function';
// Note: We **don't** need `envHasBigInt64Array` in fde es6/index.js
@ -45,7 +47,8 @@ function equal(a, b) {
//
// **Note**: `i` access switches to `i.value`.
var it;
if (hasMap && (a instanceof Map) && (b instanceof Map)) {
if ((hasMap && (a instanceof Map) && (b instanceof Map)) ||
(hasWeakMap && (a instanceof WeakMap) && (b instanceof WeakMap))) {
if (a.size !== b.size) return false;
it = a.entries();
for (i = it.next(); !i.done; i = it.next())
@ -56,14 +59,14 @@ function equal(a, b) {
return true;
}
if (hasSet && (a instanceof Set) && (b instanceof Set)) {
if (hasSet && (a instanceof Set) && (b instanceof Set) ||
(hasWeakSet && (a instanceof WeakSet) && (b instanceof WeakSet))) {
if (a.size !== b.size) return false;
it = a.entries();
for (i = it.next(); !i.done; i = it.next())
if (!b.has(i.value[0])) return false;
return true;
}
// END: Modifications
if (hasArrayBuffer && ArrayBuffer.isView(a) && ArrayBuffer.isView(b)) {
length = a.length;
@ -72,6 +75,7 @@ function equal(a, b) {
if (a[i] !== b[i]) return false;
return true;
}
// END: Modifications
if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags;
if (a.valueOf !== Object.prototype.valueOf) return a.valueOf() === b.valueOf();

1
test/browser/index.js
View File

@ -4,6 +4,7 @@
require('core-js/features/map');
require('core-js/features/set');
require('core-js/features/weak-map');
require('core-js/features/weak-set');
require('core-js/features/symbol');
require('core-js/features/regexp/flags');