Function join

packages/sql/src/internal/statement.ts:439–468

(literal: string, addParens = true, fallback = "")

/** @internal */
export function join(literal: string, addParens = true, fallback = "") {
  const literalStatement = new LiteralImpl(literal)

  return (clauses: ReadonlyArray<string | Statement.Fragment>): Statement.Fragment => {
    if (clauses.length === 0) {
      return unsafeFragment(fallback)
    } else if (clauses.length === 1) {
      return new FragmentImpl(convertLiteralOrFragment(clauses[0]))
    }

    const segments: Array<Statement.Segment> = []

    if (addParens) {
      segments.push(new LiteralImpl("("))
    }

    segments.push.apply(segments, convertLiteralOrFragment(clauses[0]))

    for (let i = 1; i < clauses.length; i++) {
      segments.push(literalStatement)
      segments.push.apply(segments, convertLiteralOrFragment(clauses[i]))
    }

    if (addParens) {
      segments.push(new LiteralImpl(")"))
    }

    return new FragmentImpl(segments)
  }
}

/** @internal */
export const and = join(" AND ", true, "1=1")