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Stop dereferencing msg_send!'s first argument #102

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Stop dereferencing msg_send!'s first argument #102

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Commits on Jun 4, 2021

  1. Stop dereferencing msg_send!'s first argument 

    In Objective-C, having a null pointer receiver is valid, but with `msg_send!` it would be converted into a reference, which is undefined behavior.

Additionally, there might be a mutable reference somewhere else in the program, which would now be aliased.

Note: The reference is converted into a pointer immediately after, but it is still UB.
    @madsmtm
    madsmtm committed Jun 4, 2021
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