Comments (4)
That patch does get me past compiling mini_paste (thanks!) but then safer_ffi fails to build:
error[E0432]: unresolved imports `proc_macro::ffi_export`, `proc_macro::cfg_headers`
--> /Users/sam/.cargo/registry/src/github.com-1ecc6299db9ec823/safer-ffi-0.0.7/src/_lib.rs:42:24
|
42 | pub use ::proc_macro::{ffi_export, cfg_headers};
| ^^^^^^^^^^ ^^^^^^^^^^^ no `cfg_headers` in the root
| |
| no `ffi_export` in the root
error[E0432]: unresolved import `proc_macro::derive_ReprC`
--> /Users/sam/.cargo/registry/src/github.com-1ecc6299db9ec823/safer-ffi-0.0.7/src/_lib.rs:52:13
|
52 | pub use ::proc_macro::derive_ReprC;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ no `derive_ReprC` in the root
error[E0432]: unresolved import `proc_macro::_proc_macro_hack_c_str`
--> /Users/sam/.cargo/registry/src/github.com-1ecc6299db9ec823/safer-ffi-0.0.7/src/_lib.rs:49:15
|
49 | pub use ::proc_macro::c_str as c;
| ^^^^^^^^^^^^^^^^^ no `_proc_macro_hack_c_str` in the root
error[E0432]: unresolved import `proc_macro::derive_ReprC`
--> /Users/sam/.cargo/registry/src/github.com-1ecc6299db9ec823/safer-ffi-0.0.7/src/layout/_mod.rs:17:9
|
17 | derive_ReprC,
| ^^^^^^^^^^^^ no `derive_ReprC` in the root
BTW, thanks for releasing this library. It made using Rust on iOS so much easier. (I'm working on this: https://github.com/spullara/granne_c)
from safer_ffi.
Yeah, with the current revamp/cleanup of safer-ffi
, minipaste
will be replaced back with paste
(the reason for using it at the moment is a very weird and obscure misinteraction between spans of tokens and a macro_rules!
macro calling a proc-macro which calls back a macro_rules!
macro: in such a contrived scenario, the implementation of mini_paste
seems to dodge the compiler bug whereas paste
doesn't).
But as the step #97 of the revamp is completed, we won't hit that bug anyways, making usage of paste
fine again.
Workaround
In the interim, you are hitting yet another compiler bug (can't have a renamed a proc-macro = true
crate dependency when cross-compiling), which was circumvented upstream, but due to the "archived state" of mini_paste
the workaround has not made it to crates.io:
# https://github.com/danielhenrymantilla/mini_paste/commit/69f4e5e0784d05fecaaca7ec8d8ed0a13f407472
[patch.crates-io.mini_paste]
git = "https://github.com/danielhenrymantilla/mini_paste.git"
rev = "69f4e5e0784d05fecaaca7ec8d8ed0a13f407472"
from safer_ffi.
(I'm aware a patch
is not ideal, but it should just be needed for a couple weeks / a month at most; at that point the revamp ought to be ready and thus have been released. I'm quite confident the patch will circumvent the bug, hence my closing the issue (my way of tagging it as "nothing more to be done" (since #97 will already naturally fix this long-term)). But it's not meant to put an end to the discussion, on the other hand 🙂)
from safer_ffi.
Damn, safer-ffi
itself is affected by that Rust bug as well. Thanks for bringing this up, will smuggle a fix to it with the other changes, and in the meantime, I'll set up a patch to fix safer-ffi
itself
from safer_ffi.
Related Issues (20)
- Specifying `[[bin]]` with required features should be a required instruction HOT 1
- Quickstart `crate-type` `lib` seems documented too optional
- Trivial example requires `python-headers` feature to build HOT 2
- No `DOXYGEN` def yields incorrect enum definition HOT 1
- Missing `Clone` impl for `repr_c::Box` (and friends?)
- VS code complains non snake case
- Generated Clone implementation triggers clippy lint about being incorrect for a Copy type HOT 4
- Allow disabling dependency on `inventory v0.1` HOT 2
- Macro ambiguity on nightly: `std::cfg_match` vs `crate::utils::macros::cfg_match` HOT 1
- Conditional proc-macros HOT 2
- How does `safer_ffi` avoid aliasing rule problem? HOT 3
- Compatibility with C++ vector HOT 2
- Handle non-panic Tokio task termination
- no_libc feature?
- C# headers are `public`, when `internal` visibility most likely suffices
- No tag or release for v0.1.5 HOT 1
- Feature Request: Generate rust fn and struct declarations instead of C headers HOT 1
- Python example? HOT 1
- Feature request: serde Serialize and Deserialize support for repr_c::String and repr_c::Vec
- Inconsistent MSRV user guide HOT 1
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from safer_ffi.