protected static function matchImpl()

in src/expression/LiteralExpression.hack [17:48]

• 32 lines of code
• 5 McCabe index (conditional complexity)

  protected static function matchImpl(
    self::TNode $node,
  ): ?Expression<mixed> {
    $classes = vec[
      BinaryLiteralExpression::class,
      BooleanLiteralExpression::class,
      DecimalLiteralExpression::class,
      DoubleQuotedStringLiteralExpression::class,
      FloatingLiteralExpression::class,
      HeredocStringLiteralExpression::class,
      HexadecimalLiteralExpression::class,
      NowdocStringLiteralExpression::class,
      NullLiteralExpression::class,
      OctalLiteralExpression::class,
      SingleQuotedStringLiteralExpression::class,
    ];
    $expr = $node->getExpression();
    if ($expr is nonnull) {
      foreach ($classes as $class) {
        $m = $class::match($expr);
        if ($m !== null) {
          return $m;
        }
      }
    }
    invariant_violation(
      "Unhandled literal expression: %s: %s\n",
      $expr is nonnull ? \get_class($expr) : 'null',
      $node->getCode(),
    );
    return null;
  }