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fix(minifier): remove unused long array expressions #13752

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Merged
graphite-app merged 1 commit into from
Sep 14, 2025
Merged

fix(minifier): remove unused long array expressions #13752

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15 changes: 11 additions & 4 deletions crates/oxc_minifier/src/peephole/substitute_alternate_syntax.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1378,7 +1378,7 @@ impl<'a> PeepholeOptimizations {
let concatenated_string = strings.collect::<std::vec::Vec<_>>().join(delimiter);

// "str1,str2".split(',')
*expr = ctx.ast.expression_call(
*expr = ctx.ast.expression_call_with_pure(
expr.span(),
Expression::StaticMemberExpression(ctx.ast.alloc_static_member_expression(
expr.span(),
Expand All @@ -1397,6 +1397,7 @@ impl<'a> PeepholeOptimizations {
None,
))),
false,
true,
);
ctx.state.changed = true;
}
Expand Down Expand Up @@ -1519,9 +1520,9 @@ mod test {
use oxc_syntax::es_target::ESTarget;

use crate::{
CompressOptions,
CompressOptions, CompressOptionsUnused,
options::CompressOptionsKeepNames,
tester::{default_options, test, test_same, test_same_options},
tester::{default_options, test, test_options, test_same, test_same_options},
};

#[test]
Expand Down Expand Up @@ -1786,7 +1787,7 @@ mod test {
let test_with_longer_args =
|source_text_partial: &str, expected_partial: &str, delimiter: &str| {
let expected = &format!(
"var x='{expected_partial}{}'.split('{delimiter}')",
"var x=/* @__PURE__ */'{expected_partial}{}'.split('{delimiter}')",
format!("{delimiter}1").repeat(REPEAT)
);
test(&format!("var x=[{source_text_partial}{additional_args}]"), expected);
Expand All @@ -1809,6 +1810,12 @@ mod test {

// all possible delimiters used, leave it alone
test_same_with_longer_args("'.', ',', '(', ')', ' '");

test_options(
&format!("var x=['1','2','3','4','5','6'{additional_args}]"),
"",
&CompressOptions { unused: CompressOptionsUnused::Remove, ..default_options() },
);
}

#[test]
Expand Down
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