Fix crash in expando assignment to alias#34566
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This PR disallows expando assignments Fixes #34493, but disallows the prototype assignment nonetheless.
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Note: this is a superset of #34553 |
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Sorry, that was a mistake because I was testing #34553 locally and forgot. I reverted those changes because it's much too confusing otherwise. |
andrewbranch
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Oct 18, 2019
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Is the fact that expandos don't work on alias symbols documented anywhere? I guess people don’t run into this very often.
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Given that I didn't think of this before, I'd guess not. Our test coverage is heavily biased toward commonjs importing commonjs. |
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This PR disallows expando assignments
Fixes #34493, but disallows the prototype assignment, which never worked.