ember-source/dist/dev/packages/shared-chunks/collections-D_nY_0UJ.js

A JavaScript framework for creating ambitious web applications

import './debug-to-string-CFb7h0lY.js';
import { g as getLast } from './present-B1rrjAVM.js';

function unwrap(val) {
  return val;
}
function expect(val, message) {
  return val;
}
function exhausted(value) {
}

function dict() {
  return Object.create(null);
}
function isDict(u) {
  return u !== null && u !== undefined;
}
function isIndexable(u) {
  return typeof u === 'function' || typeof u === 'object' && u !== null;
}
class StackImpl {
  stack;
  current = null;
  constructor(values = []) {
    this.stack = values;
  }
  get size() {
    return this.stack.length;
  }
  push(item) {
    this.current = item;
    this.stack.push(item);
  }
  pop() {
    let item = this.stack.pop();
    this.current = getLast(this.stack) ?? null;
    return item === undefined ? null : item;
  }
  nth(from) {
    let len = this.stack.length;
    return len < from ? null : unwrap(this.stack[len - from]);
  }
  isEmpty() {
    return this.stack.length === 0;
  }
  snapshot() {
    return [...this.stack];
  }
  toArray() {
    return this.stack;
  }
}

export { StackImpl as S, isIndexable as a, exhausted as b, dict as d, expect as e, isDict as i, unwrap as u };