toString method

@override String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  const null_ = 'null';
  final left = (_left ?? _inlineStart)?.toString() ?? null_;
  final top = this.top?.toString() ?? null_;
  final right = (_right ?? _inlineEnd)?.toString() ?? null_;
  final bottom = this.bottom?.toString() ?? null_;
  if (left == right && right == top && top == bottom) {
    return 'CssLengthBox.all($left)';
  }

  final values = [left, top, right, bottom];
  if (values.where((v) => v == null_).length == 3) {
    if (left != null_) {
      if (_left != null) {
        return 'CssLengthBox(left=$_left)';
      } else {
        return 'CssLengthBox(inline-start=$_inlineStart)';
      }
    }
    if (top != null_) {
      return 'CssLengthBox(top=$top)';
    }
    if (right != null_) {
      if (_right != null) {
        return 'CssLengthBox(right=$_right)';
      } else {
        return 'CssLengthBox(inline-end=$_inlineEnd)';
      }
    }
    if (bottom != null_) {
      return 'CssLengthBox(bottom=$bottom)';
    }
  }

  return 'CssLengthBox($left, $top, $right, $bottom)';
}