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transmute_ptr_to_ref suggestion doesn't with some outer expression types #1754

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#15159
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transmute_ptr_to_ref suggestion doesn't with some outer expression types#1754
#15159
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C-bugCategory: Clippy is not doing the correct thingT-middleType: Probably requires verifiying typesgood first issueThese issues are a good way to get started with Clippy
@oli-obk

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@oli-obk
oli-obk
opened on May 12, 2017

clippy suggests the following replacement

-                mem::transmute::<*mut c_void, &mut Box<FnMut(&Button)>>(data)(&button)
+                &mut *(data as *mut Box<FnMut(&Button)>)(&button)

but we should suggest parens around the &mut *...

bonus points if the parens only appear if necessary

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C-bugCategory: Clippy is not doing the correct thingT-middleType: Probably requires verifiying typesgood first issueThese issues are a good way to get started with Clippy

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