Function isNullValue

packages/electric-db-collection/src/sql-compiler.ts:164–166

* Check if a BasicExpression represents a null/undefined value

(exp: IR.BasicExpression<unknown>)

 * Check if a BasicExpression represents a null/undefined value
 */
function isNullValue(exp: IR.BasicExpression<unknown>): boolean {
  return exp.type === `val` && (exp.value === null || exp.value === undefined)
}

function compileFunction(
  exp: IR.Func<unknown>,