Function getJSContextOpts

jsm.go:1769–1798

(defs *jsOpts, opts ...JSOpt)

}

func getJSContextOpts(defs *jsOpts, opts ...JSOpt) (*jsOpts, context.CancelFunc, error) {
	var o jsOpts
	for _, opt := range opts {
		if err := opt.configureJSContext(&o); err != nil {
			return nil, nil, err
		}
	}

	// Check for option collisions. Right now just timeout and context.
	if o.ctx != nil && o.wait != 0 {
		return nil, nil, ErrContextAndTimeout
	}
	if o.wait == 0 && o.ctx == nil {
		o.wait = defs.wait
	}
	var cancel context.CancelFunc
	if o.ctx == nil && o.wait > 0 {
		o.ctx, cancel = context.WithTimeout(context.Background(), o.wait)
	}
	if o.pre == _EMPTY_ {
		o.pre = defs.pre
	}
	if o.ctx != nil {
		// if context does not have a deadline, use timeout from js context
		if _, hasDeadline := o.ctx.Deadline(); !hasDeadline {
			o.ctx, cancel = context.WithTimeout(o.ctx, defs.wait)
		}
	}
	return &o, cancel, nil
}