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Rename relative paths inside of the crate to still refer to the same
items, also rename paths inside of the kernel crate and adjust the build
system to build the crate.
[ Remove the `expect` (and thus the `lint_reasons` feature) since
the tree now uses `quote!` from `rust/macros/export.rs`. Remove the
`TokenStream` import removal, since it is now used as well.
In addition, temporarily (i.e. just for this commit) use an `--extern
force:alloc` to prevent an unknown `new_uninit` error in the `rustdoc`
target. For context, please see a similar case in:
https://lore.kernel.org/lkml/[email protected]/
And adjusted the message above. - Miguel ]
Signed-off-by: Benno Lossin <[email protected]>
Reviewed-by: Fiona Behrens <[email protected]>
Tested-by: Andreas Hindborg <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Miguel Ojeda <[email protected]>
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This gives the quote! macro support for the following additional tokens:
* The = token.
* The _ token.
* The # token. (when not followed by an identifier)
* Using #my_var with variables of type Ident.
Additionally, some type annotations are added to allow cases where
groups are empty. For example, quote! does support () in the input, but
only when it is *not* empty. When it is empty, there are zero `.push`
calls, so the compiler can't infer the item type and also emits a
warning about it not needing to be mutable.
These additional quote! features are used by a new proc macro that
generates code looking like this:
const _: () = {
if true {
::kernel::bindings::#name
} else {
#name
};
};
where #name has type Ident.
Reviewed-by: Andreas Hindborg <[email protected]>
Reviewed-by: Tamir Duberstein <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Alice Ryhl <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Miguel Ojeda <[email protected]>
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Add a derive proc-macro for the `Zeroable` trait. The macro supports
structs where every field implements the `Zeroable` trait. This way
`unsafe` implementations can be avoided.
The macro is split into two parts:
- a proc-macro to parse generics into impl and ty generics,
- a declarative macro that expands to the impl block.
Suggested-by: Asahi Lina <[email protected]>
Signed-off-by: Benno Lossin <[email protected]>
Reviewed-by: Gary Guo <[email protected]>
Reviewed-by: Martin Rodriguez Reboredo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[ Added `ignore` to the `lib.rs` example and cleaned trivial nit. ]
Signed-off-by: Miguel Ojeda <[email protected]>
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When using `quote!` as part of an expression that was not the last one
in a function, the `#[allow(clippy::vec_init_then_push)]` attribute
would be present on an expression, which is not allowed.
This patch refactors that part of the macro to use a statement instead.
Signed-off-by: Benno Lossin <[email protected]>
Reviewed-by: Alice Ryhl <[email protected]>
Reviewed-by: Martin Rodriguez Reboredo <[email protected]>
Reviewed-by: Gary Guo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Miguel Ojeda <[email protected]>
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Add the following initializer macros:
- `#[pin_data]` to annotate structurally pinned fields of structs,
needed for `pin_init!` and `try_pin_init!` to select the correct
initializer of fields.
- `pin_init!` create a pin-initializer for a struct with the
`Infallible` error type.
- `try_pin_init!` create a pin-initializer for a struct with a custom
error type (`kernel::error::Error` is the default).
- `init!` create an in-place-initializer for a struct with the
`Infallible` error type.
- `try_init!` create an in-place-initializer for a struct with a custom
error type (`kernel::error::Error` is the default).
Also add their needed internal helper traits and structs.
Co-developed-by: Gary Guo <[email protected]>
Signed-off-by: Gary Guo <[email protected]>
Signed-off-by: Benno Lossin <[email protected]>
Reviewed-by: Alice Ryhl <[email protected]>
Reviewed-by: Andreas Hindborg <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[ Fixed three typos. ]
Signed-off-by: Miguel Ojeda <[email protected]>
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Add the `quote!` macro for creating `TokenStream`s directly via the
given Rust tokens. It also supports repetitions using iterators.
It will be used by the pin-init API proc-macros to generate code.
Signed-off-by: Gary Guo <[email protected]>
Signed-off-by: Benno Lossin <[email protected]>
Reviewed-by: Andreas Hindborg <[email protected]>
Reviewed-by: Alice Ryhl <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Miguel Ojeda <[email protected]>
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