Function numericValue

scripts/fungrim/numeric-check.ts:85–93

(x: BoxedExpression)

  instances: Instance[];
  elapsedMs: number;
};

type Complex = { re: number; im: number };

function numericValue(x: BoxedExpression): Complex | null {
  const v = x.N();
  if (!isNumber(v)) return null;
  const re = v.re;
  const im = v.im;
  if (typeof re !== 'number' || typeof im !== 'number') return null;
  if (Number.isNaN(re) || Number.isNaN(im)) return null;
  return { re, im };