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Expressions: test that the kept layers are bounded

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tylerjenningsw
2026-10-27 14:04:10 -04:00
parent ad6b87c60d
commit e7cf022a7d
1 changed files with 14 additions and 0 deletions
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crates/expr/src/tests.rs
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@@ -1408,6 +1408,20 @@ fn a_kept_layer_reads_the_project_again() {
assert_close!(f.num("thisLayer.index * 10 + thisLayer.name.length", 0.0), 21.0);
}
/// The kept layers are bounded: past the bound a layer isn't kept, an evaluation that makes more
/// layers than are kept still sees one object for each layer it had kept, and the evaluations
/// after it, which start over, read the right layers.
#[test]
fn the_kept_layers_are_bounded() {
let f = fx();
let same = "(thisLayer === thisComp.layer(thisLayer.index) ? 1 : 0)";
let many =
format!("var c = thisLayer.__c;\nfor (var i = 0; i < 5000; i++) __layer(c, 100000 + i);\n{same} * 10 + (__layer(c, 1e6) === __layer(c, 1e6) ? 0 : 1)");
assert_close!(f.num(&many, 0.0), 11.0);
assert_close!(f.num(&format!("{same} * 100 + thisLayer.index * 10 + thisLayer.name.length"), 0.0), 111.0);
assert_close!(f.num(&format!("{same} * 100 + thisLayer.index * 10 + thisLayer.name.length"), 0.0), 111.0);
}
/// The prelude is kept from one evaluation to the next, so an expression can't change its object
/// model or internals for the ones after it.
#[test]