Freeze Template Objects in __makeTemplateObject
#51806
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The closer to the spec, the better for reliability. 14. Perform ! DefinePropertyOrThrow(template, "raw", PropertyDescriptor { [[Value]]: rawObj, [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }). |
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This PR has our
__makeTemplateObjecthelper freeze the arrays passed into it. This is more correct according to the ECMAScript spec for our downlevel support in ES5 for tagged template strings, as template objects (a.k.aTemplateStringsArrays) are supposed to be deeply frozen.While we're here, maybe I should also make the
rawproperty non-enumerable. I don't know if configurability/writability matters if we're just freezing the object after anyway.Fixes #51789.