Math layout: Don’t add frames for MetaElems

The tests still pass, but this is probably not the correct solution.
typst · May 7, 2024 · d4a16da · d4a16da
1 parent cf393f9
commit d4a16da
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diff --git a/crates/typst/src/math/mod.rs b/crates/typst/src/math/mod.rs
@@ -46,6 +46,7 @@ use crate::foundations::StyledElem;
 use crate::foundations::{
  category, Category, Content, Module, Resolve, Scope, StyleChain,
 };
+use crate::introspection::MetaElem;
 use crate::layout::{BoxElem, HElem, Spacing};
 use crate::realize::{process, BehavedBuilder};
 use crate::text::{LinebreakElem, SpaceElem, TextElem};
@@ -300,6 +301,10 @@ impl LayoutMath for Content {
  return elem.layout_math(ctx, styles);
  }
 
+ if self.is::<MetaElem>() {
+ return Ok(());
+ }
+
  let mut frame = ctx.layout_content(self, styles)?;
  if !frame.has_baseline() {
  let axis = scaled!(ctx, styles, axis_height);

diff --git a/tests/ref/math-class-3727-contextual.png b/tests/ref/math-class-3727-contextual.png
diff --git a/tests/suite/math/class.typ b/tests/suite/math/class.typ
@@ -45,3 +45,8 @@ $class("large", ->)_a$
 
 $limits(class("normal", ->))_a$
 $ scripts(class("relation", x))_a $
+
+--- math-class-3727-contextual ---
+
+#let test = context math.class("relation", "--")
+$ a test b $