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fix(minifier): (-Infinity).toString() -> '-Infinity' #8535

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merged 1 commit into from
Jan 16, 2025
Merged

fix(minifier): (-Infinity).toString() -> '-Infinity' #8535

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20 changes: 2 additions & 18 deletions crates/oxc_minifier/src/ast_passes/peephole_replace_known_methods.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -294,19 +294,10 @@ impl<'a> PeepholeReplaceKnownMethods {
if radix == 0 {
return None;
}
if lit.value.is_nan() {
return Some(ctx.ast.expression_string_literal(ce.span, "NaN", None));
}
if lit.value.is_infinite() {
return Some(ctx.ast.expression_string_literal(ce.span, "Infinity", None));
}
if radix == 10 {
use oxc_syntax::number::ToJsString;
return Some(ctx.ast.expression_string_literal(
ce.span,
lit.value.to_js_string(),
None,
));
let s = lit.value.to_js_string();
return Some(ctx.ast.expression_string_literal(ce.span, s, None));
}
// Only convert integers for other radix values.
let value = lit.value;
Expand Down Expand Up @@ -1244,12 +1235,5 @@ mod test {
test("123 .toString(b)", "123 .toString(b)");
test("1e99.toString(b)", "1e99.toString(b)");
test("/./.toString(b)", "/./.toString(b)");

// Will get constant folded into positive values
test_same("(-0).toString()");
test_same("(-123).toString()");
test_same("(-Infinity).toString()");
test_same("(-1000000).toString(36)");
test_same("(-0).toString(36)");
}
}
9 changes: 9 additions & 0 deletions crates/oxc_minifier/tests/ast_passes/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,15 @@ fn integration() {
);
}

#[test]
fn fold() {
test("var x = (-0).toString()", "var x = '0'");
test("var x = (-0).toString(36)", "var x = '0'");
test("var x = (-123).toString()", "var x = '-123'");
test("var x = (-Infinity).toString()", "var x = '-Infinity'");
test("var x = (-1000000).toString(36)", "var x = (-1e6).toString(36)");
}

#[test] // https://github.com/oxc-project/oxc/issues/4341
fn tagged_template() {
test_same("(1, o.f)()");
Expand Down
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