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fix(minifier): keep class if class has decorators #12669

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Merged
graphite-app merged 1 commit into from
Jul 31, 2025
Merged

fix(minifier): keep class if class has decorators #12669

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3 changes: 3 additions & 0 deletions crates/oxc_minifier/src/peephole/remove_unused_declaration.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -148,6 +148,9 @@ mod test {
&options,
);

// decorators
test_same_options("class C { @dec foo() {} }", &options);

// TypeError
test_same_options("class C extends (() => {}) {}", &options);
}
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4 changes: 4 additions & 0 deletions crates/oxc_minifier/src/peephole/remove_unused_expression.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -677,6 +677,7 @@ impl<'a> PeepholeOptimizations {
// Keep the entire class if non-empty static block exists.
for e in &c.body.body {
match e {
e if e.has_decorator() => return None,
ClassElement::TSIndexSignature(_) => return None,
ClassElement::StaticBlock(block) => {
if !block.body.is_empty() {
Expand Down Expand Up @@ -1132,6 +1133,9 @@ mod test {
&options,
);

// decorators
test_same_options("(class { @dec foo() {} })", &options);

// TypeError
test_same_options("(class extends (() => {}) {})", &options);
}
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