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| author | Alex Lam S.L <alexlamsl@gmail.com> | 2020-12-31 06:55:05 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-12-31 14:55:05 +0800 |
| commit | 0b7d65d33197e2cab4e57009c1bc5f6fd590b702 (patch) | |
| tree | bac3e9e84f144bc1bd80ee1c81ae4c10bc595c20 /lib | |
| parent | 8b954b022bf206048f8380878251bd64795da5f9 (diff) | |
| download | tracifyjs-0b7d65d33197e2cab4e57009c1bc5f6fd590b702.tar.gz tracifyjs-0b7d65d33197e2cab4e57009c1bc5f6fd590b702.zip | |
fix corner case with `arguments` (#4486)
fixes #4485
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/compress.js | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/compress.js b/lib/compress.js index aea3155a..531c9aad 100644 --- a/lib/compress.js +++ b/lib/compress.js @@ -3344,7 +3344,9 @@ merge(Compressor.prototype, { if (is_undeclared_ref(this) && this.is_declared(compressor)) return false; if (this.is_immutable()) return false; var def = this.definition(); - if (is_arguments(def)) return def.scope.uses_arguments > 2; + if (is_arguments(def) && all(def.scope.argnames, function(argname) { + return argname instanceof AST_SymbolFunarg; + })) return def.scope.uses_arguments > 2; var fixed = this.fixed_value(); if (!fixed) return true; this._dot_throw = return_true; |