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feat(minifier): remove logical nots when arg is a delete expression (#8303)

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camc314 2025-01-06 23:26:19 +00:00
parent 5ed439bcaf
commit 76c778b03f
1 changed files with 11 additions and 0 deletions
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11
crates/oxc_minifier/src/ast_passes/peephole_minimize_conditions.rs
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@ -91,6 +91,10 @@ impl<'a> PeepholeMinimizeConditions {
expr.argument = ctx.ast.move_expression(&mut e2.argument);
return Some(ctx.ast.move_expression(&mut expr.argument));
}
// `!!delete a.b` -> `delete a.b`
if e2.operator.is_delete() {
return Some(ctx.ast.move_expression(&mut e1.argument));
}
}
// `!!a` -> `a` // ONLY in boolean contexts
if Self::is_in_boolean_context(ctx) {
@ -1727,4 +1731,11 @@ mod test {
test_same("var k = () => { return !!x; }");
test_same("var k = () => !!x;");
}
#[test]
fn minimize_nots_with_deletes() {
test("!!delete x.y", "delete x.y");
test("!!!delete x.y", "!delete x.y");
test("!!!!delete x.y", "delete x.y");
}
}