Describe the bug
On main (5bf27fd72e), SWC does not complete minification for the input below when arguments compression is enabled and keep_fargs is false. No minified output is produced.
Input code
(function (zero, one) {
console.log(
arguments[20],
arguments["20"],
arguments[4294967295],
arguments["4294967295"],
);
})("zero", "one");
Config
{
"jsc": {
"parser": {
"syntax": "ecmascript"
},
"target": "es2024",
"minify": {
"compress": {
"arguments": true,
"defaults": true,
"keep_fargs": false,
"passes": 2
},
"mangle": false,
},
},
"isModule": true
}
Link to the code that reproduces this issue
https://play.swc.rs/?version=1.15.47&code=H4sIAAAAAAAAA9NIK81LLsnMz1PQqEotytdRyM9L1VSo5lIAguT8vOL8nFS9nPx0DbAACCQWpZfmpuaVFEcbGcTqYBFWMjJQwiphYmRpYmlmbmRpil0fQh6mX9Oaq1ZTQwnkMCUdBSWg05Q0rQH86XHAsgAAAA%3D%3D&config=H4sIAAAAAAAAA22NwQrCMAyG73uKkfMOMjz5Dj6DhC4d1bYrTQuOsXdfWqdO8BKS78ufLE3bwp0VXNpFWhkCRqb4mYXw7BM%2BhQAph6yiCQmqXLtXJmEcKdUN7k%2F9GXbujDd6Pt5SkwuRmA9MqMSzI58KTjFT91UDacz2n3kQhZuWaHEaLR9lQGYqot%2FZ%2Bpbg0I%2BWfjPV1gKGr9OQ60J52KwbscEmiCMBAAA%3D
SWC Info output
N/A
Expected behavior
Minification completes and produces output equivalent to:
!function(zero, one) {
console.log(arguments[20], arguments[20], arguments[4294967295], arguments[4294967295]);
}("zero", "one");
When executed, the output is:
undefined undefined undefined undefined
Actual behavior
On main, the minification process does not complete and produces no minified output. Depending on the environment, the process may be terminated before producing output.
Version
N/A
Additional context
This is message for readers, not the author of ths issue.
Please read no +1 before lefting a comment, or your comment will be deleted and you will be blocked.
Describe the bug
On
main(5bf27fd72e), SWC does not complete minification for the input below whenargumentscompression is enabled andkeep_fargsisfalse. No minified output is produced.Input code
Config
{ "jsc": { "parser": { "syntax": "ecmascript" }, "target": "es2024", "minify": { "compress": { "arguments": true, "defaults": true, "keep_fargs": false, "passes": 2 }, "mangle": false, }, }, "isModule": true }Link to the code that reproduces this issue
https://play.swc.rs/?version=1.15.47&code=H4sIAAAAAAAAA9NIK81LLsnMz1PQqEotytdRyM9L1VSo5lIAguT8vOL8nFS9nPx0DbAACCQWpZfmpuaVFEcbGcTqYBFWMjJQwiphYmRpYmlmbmRpil0fQh6mX9Oaq1ZTQwnkMCUdBSWg05Q0rQH86XHAsgAAAA%3D%3D&config=H4sIAAAAAAAAA22NwQrCMAyG73uKkfMOMjz5Dj6DhC4d1bYrTQuOsXdfWqdO8BKS78ufLE3bwp0VXNpFWhkCRqb4mYXw7BM%2BhQAph6yiCQmqXLtXJmEcKdUN7k%2F9GXbujDd6Pt5SkwuRmA9MqMSzI58KTjFT91UDacz2n3kQhZuWaHEaLR9lQGYqot%2FZ%2Bpbg0I%2BWfjPV1gKGr9OQ60J52KwbscEmiCMBAAA%3D
SWC Info output
N/A
Expected behavior
Minification completes and produces output equivalent to:
When executed, the output is:
Actual behavior
On
main, the minification process does not complete and produces no minified output. Depending on the environment, the process may be terminated before producing output.Version
N/A
Additional context
This is message for readers, not the author of ths issue.
Please read no +1 before lefting a comment, or your comment will be deleted and you will be blocked.