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Fix typo in improper_ctypes suggestion #52346

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Merged
merged 1 commit into from
Jul 13, 2018
Merged

Fix typo in improper_ctypes suggestion #52346

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2 changes: 1 addition & 1 deletion src/librustc_lint/types.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -673,7 +673,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
return FfiUnsafe {
ty: ty,
reason: "this function pointer has Rust-specific calling convention",
help: Some("consider using an `fn \"extern\"(...) -> ...` \
help: Some("consider using an `extern fn(...) -> ...` \
function pointer instead"),
}
}
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4 changes: 2 additions & 2 deletions src/test/ui/lint-ctypes.stderr
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Expand Up @@ -126,15 +126,15 @@ error: `extern` block uses type `fn()` which is not FFI-safe: this function poin
LL | pub fn fn_type(p: RustFn); //~ ERROR function pointer has Rust-specific
| ^^^^^^
|
= help: consider using an `fn "extern"(...) -> ...` function pointer instead
= help: consider using an `extern fn(...) -> ...` function pointer instead

error: `extern` block uses type `fn()` which is not FFI-safe: this function pointer has Rust-specific calling convention
--> $DIR/lint-ctypes.rs:70:24
|
LL | pub fn fn_type2(p: fn()); //~ ERROR function pointer has Rust-specific
| ^^^^
|
= help: consider using an `fn "extern"(...) -> ...` function pointer instead
= help: consider using an `extern fn(...) -> ...` function pointer instead

error: `extern` block uses type `std::boxed::Box<u32>` which is not FFI-safe: this struct has unspecified layout
--> $DIR/lint-ctypes.rs:71:28
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