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Fix order of OwnProperty check for rest parameters.

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This was a small mistake when converting from the `hasOwn()` function format (swapped parameters). Fixing this properly makes rest parameters exclude the parameters that are defined (which is the whole point of `...rest`
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Moonchild 2019-07-19 15:48:48 +02:00 • committed by Roy Tam
commit 41efc528d5
1 changed files with 1 additions and 1 deletions
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js/src/builtin/Utilities.js
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@ -254,7 +254,7 @@ function CopyDataProperties(target, source, excluded) {
// We abbreviate this by calling propertyIsEnumerable which is faster
// and returns false for not defined properties.
if (!callFunction(std_Object_hasOwnProperty, key, excluded) && callFunction(std_Object_propertyIsEnumerable, source, key))
if (!callFunction(std_Object_hasOwnProperty, excluded, key) && callFunction(std_Object_propertyIsEnumerable, source, key))
_DefineDataProperty(target, key, source[key]);
}