stringLiteral method

Parser<ExpressionNode> stringLiteral()

Implementation

Parser<ExpressionNode> stringLiteral() =>
    ref0(singleStringLiteral).plus().map((strings) {
      if (strings.length == 1) return strings.first;
      final hasInterpolations = strings.any(
        (s) => s is JoinedStrNode || s is FormattedValueNode,
      );
      if (hasInterpolations) {
        final parts = <ExpressionNode>[];
        for (final s in strings) {
          if (s is JoinedStrNode) {
            parts.addAll(s.values);
          } else {
            parts.add(s);
          }
        }
        return JoinedStrNode(parts);
      } else {
        final buffer = StringBuffer();
        for (final s in strings) {
          if (s is ConstantNode) {
            buffer.write(s.value);
          }
        }
        return ConstantNode(buffer.toString());
      }
    });