Function litVal

src/compute-engine/library/distributions.ts:50–53

Finite real value of a number literal, or `undefined` if not a literal.

(x: Expression)

function distOps(dist: Expression): ReadonlyArray<Expression> {
  return isFunction(dist) ? dist.ops : [];
}

/** Finite real value of a number literal, or `undefined` if not a literal. */
function litVal(x: Expression): number | undefined {
  if (isNumber(x) && x.im === 0 && x.isFinite === true) return x.re;
  return undefined;
}