Fix crashes with infinite lengths (part 2) (#2298)

2 files changed, 6 insertions, 0 deletions

diff --git a/crates/typst-library/src/visualize/line.rs b/crates/typst-library/src/visualize/line.rs
index 6837caf1..da497cf4 100644
--- a/crates/typst-library/src/visualize/line.rs
+++ b/crates/typst-library/src/visualize/line.rs
@@ -75,6 +75,9 @@ impl Layout for LineElem {
         let size = start.max(start + delta).max(Size::zero());
         let target = regions.expand.select(regions.size, size);
 
+        if !target.is_finite() {
+            bail!(error!(self.span(), "cannot create line with infinite length"));
+        }
         let mut frame = Frame::soft(target);
         let shape = Geometry::Line(delta.to_point()).stroked(stroke);
         frame.push(start.to_point(), FrameItem::Shape(shape, self.span()));
diff --git a/crates/typst-library/src/visualize/polygon.rs b/crates/typst-library/src/visualize/polygon.rs
index 1d19a94d..b1ed9eaa 100644
--- a/crates/typst-library/src/visualize/polygon.rs
+++ b/crates/typst-library/src/visualize/polygon.rs
@@ -130,6 +130,9 @@ impl Layout for PolygonElem {
             .collect();
 
         let size = points.iter().fold(Point::zero(), |max, c| c.max(max)).to_size();
+        if !size.is_finite() {
+            bail!(error!(self.span(), "cannot create polygon with infinite size"));
+        }
         let mut frame = Frame::hard(size);
 
         // Only create a path if there are more than zero points.