babel-plugin-ember-template-compilation/src/read-only-array.js

Babel implementation of Ember's low-level template-compilation API

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.readOnlyArray = readOnlyArray;
const mutationMethods = [
    'copyWithin',
    'fill',
    'pop',
    'push',
    'reverse',
    'shift',
    'sort',
    'splice',
    'unshift',
];
function readOnlyArray(array, message = 'Forbidden array mutation') {
    return new Proxy(array, {
        get(target, prop) {
            if (typeof prop === 'string' && mutationMethods.includes(prop)) {
                return () => {
                    throw new Error(message);
                };
            }
            return Reflect.get(target, prop);
        },
        set(_target, _prop) {
            throw new Error(message);
        },
        deleteProperty() {
            throw new Error(message);
        },
    });
}
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