@awayfl/avm2/dist/lib/run/axCoerce.js

Virtual machine for executing AS3 code

import { Errors } from '../errors';
import { IS_AX_CLASS } from './AXClass';
export function axCoerce(x) {
    // fast path, null == void 0 is true
    if (x == void 0) {
        return null;
    }
    if (!x[IS_AX_CLASS] || x.__fast__) {
        return x;
    }
    // propagate fast mode for arrays with fast entries
    if (Array.isArray(x) && (x[0] && x[0].__fast__)) {
        return x;
    }
    if (!this.axIsType(x)) {
        this.sec.throwError('TypeError', Errors.CheckTypeFailedError, x, this.classInfo.instanceInfo.getClassName());
    }
    return x;
}