@web-atoms/core/dist/core/AtomOnce.js

Web Atoms Core

System.register([], function (_export, _context) {
  "use strict";

  var AtomOnce;
  _export("AtomOnce", void 0);
  return {
    setters: [],
    execute: function () {
      _export("AtomOnce", AtomOnce = class AtomOnce {
        run(f) {
          if (this.isRunning) {
            return;
          }
          let isAsync = false;
          try {
            this.isRunning = true;
            const p = f();
            if (p && p.then && p.catch) {
              isAsync = true;
              p.then(() => {
                this.isRunning = false;
              }).catch(() => {
                this.isRunning = false;
              });
            }
          } finally {
            if (!isAsync) {
              this.isRunning = false;
            }
          }
        }
      });
    }
  };
});
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