47b8479e73
The the last argument of the `ItemDecorator::expand` method has changed to `Box<FnMut>`. Syntax extensions will break. [breaking-change] --- This PR removes pretty much all the remaining uses of boxed closures from the libraries. There are still boxed closures under the `test` directory, but I think those should be removed or replaced with unboxed closures at the same time we remove boxed closures from the language. In a few places I had to do some contortions (see the first commit for an example) to work around issue #19596. I have marked those workarounds with FIXMEs. In the future when `&mut F where F: FnMut` implements the `FnMut` trait, we should be able to remove those workarounds. I've take care to avoid placing the workaround functions in the public API. Since `let f = || {}` always gets type checked as a boxed closure, I have explictly annotated those closures (with e.g. `|&:| {}`) to force the compiler to type check them as unboxed closures. Instead of removing the type aliases (like `GetCrateDataCb`), I could have replaced them with newtypes. But this seemed like overcomplicating things for little to no gain. I think we should be able to remove the boxed closures from the languge after this PR lands. (I'm being optimistic here) r? @alexcrichton or @aturon cc @nikomatsakis |
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| .. | ||
| _match.rs | ||
| adt.rs | ||
| asm.rs | ||
| base.rs | ||
| basic_block.rs | ||
| build.rs | ||
| builder.rs | ||
| cabi_arm.rs | ||
| cabi_mips.rs | ||
| cabi_x86_64.rs | ||
| cabi_x86_win64.rs | ||
| cabi_x86.rs | ||
| cabi.rs | ||
| callee.rs | ||
| cleanup.rs | ||
| closure.rs | ||
| common.rs | ||
| consts.rs | ||
| context.rs | ||
| controlflow.rs | ||
| datum.rs | ||
| debuginfo.rs | ||
| doc.rs | ||
| expr.rs | ||
| foreign.rs | ||
| glue.rs | ||
| inline.rs | ||
| intrinsic.rs | ||
| llrepr.rs | ||
| machine.rs | ||
| macros.rs | ||
| meth.rs | ||
| mod.rs | ||
| monomorphize.rs | ||
| tvec.rs | ||
| type_.rs | ||
| type_of.rs | ||
| value.rs | ||