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improve fix for #4119 (#4121)

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This commit is contained in:
Alex Lam S.L
2020-09-17 16:08:36 +01:00
committed by GitHub
parent 09d93cc6c8
commit 72844eb5a4
2 changed files with 55 additions and 6 deletions
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7
lib/compress.js
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@@ -3362,7 +3362,6 @@ merge(Compressor.prototype, {
cached.forEach(function(node) {
delete node._eval;
});
if (cached.unsafe) return this;
if (ignore_side_effects) return val;
if (!val || val instanceof RegExp) return val;
if (typeof val == "function" || typeof val == "object") return this;
@@ -3429,12 +3428,8 @@ merge(Compressor.prototype, {
});
}
var value = node._eval(compressor, ignore_side_effects, cached, depth);
if (value === node) return this;
if (typeof value == "object") return this;
modified(lhs);
if (Array.isArray(value)) value.toString = function() {
cached.unsafe = true;
return "[]";
};
return value;
});
def(AST_Sequence, function(compressor, ignore_side_effects, cached, depth) {