use Buffer::new_empty in Buffer::new

src/buffer.rs

@@ -344,17 +344,7 @@ impl Buffer {
  ///
  /// Will panic if `metrics.line_height` is zero.
  pub fn new(font_system: &mut FontSystem, metrics: Metrics) -> Self {
- assert_ne!(metrics.line_height, 0.0, "line height cannot be 0");
-
- let mut buffer = Self {
- lines: Vec::new(),
- metrics,
- width: 0.0,
- height: 0.0,
- scroll: 0,
- redraw: false,
- wrap: Wrap::Word,
- };
+ let mut buffer = Self::new_empty(metrics);
  buffer.set_text(font_system, "", Attrs::new());
  buffer
  }