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6d8d79595e
The RFC for arbitrary self types v2 declares that we should reject
"generic" self types. This commit does so.
The definition of "generic" was unclear in the RFC, but has been
explored in
https://github.com/rust-lang/rust/issues/129147
and the conclusion is that "generic" means any `self` type which
is a type parameter defined on the method itself, or references
to such a type.
This approach was chosen because other definitions of "generic"
don't work. Specifically,
* we can't filter out generic type _arguments_, because that would
filter out Rc<Self> and all the other types of smart pointer
we want to support;
* we can't filter out all type params, because Self itself is a
type param, and because existing Rust code depends on other
type params declared on the type (as opposed to the method).
This PR decides to make a new error code for this case, instead of
reusing the existing E0307 error. This makes the code a
bit more complex, but it seems we have an opportunity to provide
specific diagnostics for this case so we should do so.
This PR filters out generic self types whether or not the
'arbitrary self types' feature is enabled. However, it's believed
that it can't have any effect on code which uses stable Rust, since
there are no stable traits which can be used to indicate a valid
generic receiver type, and thus it would have been impossible to
write code which could trigger this new error case.
It is however possible that this could break existing code which
uses either of the unstable `arbitrary_self_types` or
`receiver_trait` features. This breakage is intentional; as
we move arbitrary self types towards stabilization we don't want
to continue to support generic such types.
This PR adds lots of extra tests to arbitrary-self-from-method-substs.
Most of these are ways to trigger a "type mismatch" error which
9b82580c73/compiler/rustc_hir_typeck/src/method/confirm.rs (L519)
hopes can be minimized by filtering out generics in this way.
We remove a FIXME from confirm.rs suggesting that we make this change.
It's still possible to cause type mismatch errors, and a subsequent
PR may be able to improve diagnostics in this area, but it's harder
to cause these errors without contrived uses of the turbofish.
This is a part of the arbitrary self types v2 project,
https://github.com/rust-lang/rfcs/pull/3519
https://github.com/rust-lang/rust/issues/44874
r? @wesleywiser
592 lines
32 KiB
Plaintext
592 lines
32 KiB
Plaintext
hir_analysis_ambiguous_assoc_item = ambiguous associated {$assoc_kind} `{$assoc_name}` in bounds of `{$qself}`
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.label = ambiguous associated {$assoc_kind} `{$assoc_name}`
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hir_analysis_ambiguous_lifetime_bound =
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ambiguous lifetime bound, explicit lifetime bound required
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hir_analysis_assoc_item_constraints_not_allowed_here =
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associated item constraints are not allowed here
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.label = associated item constraint not allowed here
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hir_analysis_assoc_item_is_private = {$kind} `{$name}` is private
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.label = private {$kind}
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.defined_here_label = the {$kind} is defined here
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hir_analysis_assoc_item_not_found = associated {$assoc_kind} `{$assoc_name}` not found for `{$qself}`
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hir_analysis_assoc_item_not_found_found_in_other_trait_label = there is {$identically_named ->
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[true] an
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*[false] a similarly named
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} associated {$assoc_kind} `{$suggested_name}` in the trait `{$trait_name}`
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hir_analysis_assoc_item_not_found_label = associated {$assoc_kind} `{$assoc_name}` not found
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hir_analysis_assoc_item_not_found_other_sugg = `{$qself}` has the following associated {$assoc_kind}
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hir_analysis_assoc_item_not_found_similar_in_other_trait_qpath_sugg =
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consider fully qualifying{$identically_named ->
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[true] {""}
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*[false] {" "}and renaming
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} the associated {$assoc_kind}
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hir_analysis_assoc_item_not_found_similar_in_other_trait_sugg = change the associated {$assoc_kind} name to use `{$suggested_name}` from `{$trait_name}`
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hir_analysis_assoc_item_not_found_similar_in_other_trait_with_bound_sugg = ...and changing the associated {$assoc_kind} name
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hir_analysis_assoc_item_not_found_similar_sugg = there is an associated {$assoc_kind} with a similar name
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hir_analysis_assoc_kind_mismatch = expected {$expected}, found {$got}
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.label = unexpected {$got}
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.expected_because_label = expected a {$expected} because of this associated {$expected}
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.note = the associated {$assoc_kind} is defined here
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.bound_on_assoc_const_label = bounds are not allowed on associated constants
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hir_analysis_assoc_kind_mismatch_wrap_in_braces_sugg = consider adding braces here
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hir_analysis_associated_type_trait_uninferred_generic_params = cannot use the associated {$what} of a trait with uninferred generic parameters
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.suggestion = use a fully qualified path with inferred lifetimes
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hir_analysis_associated_type_trait_uninferred_generic_params_multipart_suggestion = use a fully qualified path with explicit lifetimes
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hir_analysis_auto_deref_reached_recursion_limit = reached the recursion limit while auto-dereferencing `{$ty}`
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.label = deref recursion limit reached
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.help = consider increasing the recursion limit by adding a `#![recursion_limit = "{$suggested_limit}"]` attribute to your crate (`{$crate_name}`)
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hir_analysis_bad_precise_capture = expected {$kind} parameter in `use<...>` precise captures list, found {$found}
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hir_analysis_bad_return_type_notation_position = return type notation not allowed in this position yet
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hir_analysis_cannot_capture_late_bound_const =
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cannot capture late-bound const parameter in {$what}
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.label = parameter defined here
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hir_analysis_cannot_capture_late_bound_lifetime =
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cannot capture late-bound lifetime in {$what}
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.label = lifetime defined here
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hir_analysis_cannot_capture_late_bound_ty =
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cannot capture late-bound type parameter in {$what}
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.label = parameter defined here
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hir_analysis_closure_implicit_hrtb = implicit types in closure signatures are forbidden when `for<...>` is present
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.label = `for<...>` is here
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hir_analysis_cmse_call_generic =
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function pointers with the `"C-cmse-nonsecure-call"` ABI cannot contain generics in their type
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hir_analysis_cmse_entry_generic =
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functions with the `"C-cmse-nonsecure-entry"` ABI cannot contain generics in their type
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hir_analysis_cmse_inputs_stack_spill =
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arguments for `"{$abi_name}"` function too large to pass via registers
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.label = {$plural ->
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[false] this argument doesn't
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*[true] these arguments don't
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} fit in the available registers
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.note = functions with the `"{$abi_name}"` ABI must pass all their arguments via the 4 32-bit available argument registers
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hir_analysis_cmse_output_stack_spill =
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return value of `"{$abi_name}"` function too large to pass via registers
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.label = this type doesn't fit in the available registers
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.note1 = functions with the `"{$abi_name}"` ABI must pass their result via the available return registers
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.note2 = the result must either be a (transparently wrapped) i64, u64 or f64, or be at most 4 bytes in size
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hir_analysis_coerce_unsized_may = the trait `{$trait_name}` may only be implemented for a coercion between structures
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hir_analysis_coerce_unsized_multi = implementing the trait `CoerceUnsized` requires multiple coercions
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.note = `CoerceUnsized` may only be implemented for a coercion between structures with one field being coerced
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.coercions_note = currently, {$number} fields need coercions: {$coercions}
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.label = requires multiple coercions
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hir_analysis_coercion_between_struct_same_note = expected coercion between the same definition; expected `{$source_path}`, found `{$target_path}`
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hir_analysis_coercion_between_struct_single_note = expected a single field to be coerced, none found
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hir_analysis_const_bound_for_non_const_trait =
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`{$modifier}` can only be applied to `#[const_trait]` traits
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hir_analysis_const_impl_for_non_const_trait =
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const `impl` for trait `{$trait_name}` which is not marked with `#[const_trait]`
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.suggestion = mark `{$trait_name}` as const
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.note = marking a trait with `#[const_trait]` ensures all default method bodies are `const`
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.adding = adding a non-const method body in the future would be a breaking change
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hir_analysis_const_param_ty_impl_on_non_adt =
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the trait `ConstParamTy` may not be implemented for this type
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.label = type is not a structure or enumeration
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hir_analysis_const_param_ty_impl_on_unsized =
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the trait `ConstParamTy` may not be implemented for this type
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.label = type is not `Sized`
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hir_analysis_const_specialize = cannot specialize on const impl with non-const impl
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hir_analysis_copy_impl_on_non_adt =
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the trait `Copy` cannot be implemented for this type
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.label = type is not a structure or enumeration
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hir_analysis_copy_impl_on_type_with_dtor =
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the trait `Copy` cannot be implemented for this type; the type has a destructor
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.label = `Copy` not allowed on types with destructors
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hir_analysis_cross_crate_traits = cross-crate traits with a default impl, like `{$traits}`, can only be implemented for a struct/enum type, not `{$self_ty}`
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.label = can't implement cross-crate trait with a default impl for non-struct/enum type
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hir_analysis_cross_crate_traits_defined = cross-crate traits with a default impl, like `{$traits}`, can only be implemented for a struct/enum type defined in the current crate
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.label = can't implement cross-crate trait for type in another crate
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hir_analysis_dispatch_from_dyn_multi = implementing the `DispatchFromDyn` trait requires multiple coercions
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.note = the trait `DispatchFromDyn` may only be implemented for a coercion between structures with a single field being coerced
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.coercions_note = currently, {$number} fields need coercions: {$coercions}
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hir_analysis_dispatch_from_dyn_repr = structs implementing `DispatchFromDyn` may not have `#[repr(packed)]` or `#[repr(C)]`
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hir_analysis_dispatch_from_dyn_zst = the trait `DispatchFromDyn` may only be implemented for structs containing the field being coerced, ZST fields with 1 byte alignment, and nothing else
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.note = extra field `{$name}` of type `{$ty}` is not allowed
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hir_analysis_drop_impl_negative = negative `Drop` impls are not supported
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hir_analysis_drop_impl_on_wrong_item =
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the `Drop` trait may only be implemented for local structs, enums, and unions
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.label = must be a struct, enum, or union in the current crate
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hir_analysis_drop_impl_reservation = reservation `Drop` impls are not supported
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hir_analysis_duplicate_precise_capture = cannot capture parameter `{$name}` twice
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.label = parameter captured again here
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hir_analysis_empty_specialization = specialization impl does not specialize any associated items
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.note = impl is a specialization of this impl
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hir_analysis_enum_discriminant_overflowed = enum discriminant overflowed
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.label = overflowed on value after {$discr}
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.note = explicitly set `{$item_name} = {$wrapped_discr}` if that is desired outcome
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hir_analysis_escaping_bound_var_in_ty_of_assoc_const_binding =
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the type of the associated constant `{$assoc_const}` cannot capture late-bound generic parameters
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.label = its type cannot capture the late-bound {$var_def_kind} `{$var_name}`
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.var_defined_here_label = the late-bound {$var_def_kind} `{$var_name}` is defined here
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hir_analysis_field_already_declared =
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field `{$field_name}` is already declared
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.label = field already declared
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.previous_decl_label = `{$field_name}` first declared here
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hir_analysis_field_already_declared_both_nested =
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field `{$field_name}` is already declared
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.label = field `{$field_name}` declared in this unnamed field
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.nested_field_decl_note = field `{$field_name}` declared here
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.previous_decl_label = `{$field_name}` first declared here in this unnamed field
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.previous_nested_field_decl_note = field `{$field_name}` first declared here
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hir_analysis_field_already_declared_current_nested =
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field `{$field_name}` is already declared
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.label = field `{$field_name}` declared in this unnamed field
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.nested_field_decl_note = field `{$field_name}` declared here
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.previous_decl_label = `{$field_name}` first declared here
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hir_analysis_field_already_declared_nested_help =
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fields from the type of this unnamed field are considered fields of the outer type
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hir_analysis_field_already_declared_previous_nested =
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field `{$field_name}` is already declared
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.label = field already declared
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.previous_decl_label = `{$field_name}` first declared here in this unnamed field
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.previous_nested_field_decl_note = field `{$field_name}` first declared here
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hir_analysis_function_not_found_in_trait = function not found in this trait
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hir_analysis_function_not_have_default_implementation = function doesn't have a default implementation
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.note = required by this annotation
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hir_analysis_functions_names_duplicated = functions names are duplicated
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.note = all `#[rustc_must_implement_one_of]` arguments must be unique
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hir_analysis_generic_args_on_overridden_impl = could not resolve generic parameters on overridden impl
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hir_analysis_impl_not_marked_default = `{$ident}` specializes an item from a parent `impl`, but that item is not marked `default`
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.label = cannot specialize default item `{$ident}`
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.ok_label = parent `impl` is here
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.note = to specialize, `{$ident}` in the parent `impl` must be marked `default`
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hir_analysis_impl_not_marked_default_err = `{$ident}` specializes an item from a parent `impl`, but that item is not marked `default`
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.note = parent implementation is in crate `{$cname}`
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hir_analysis_inherent_dyn = cannot define inherent `impl` for a dyn auto trait
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.label = impl requires at least one non-auto trait
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.note = define and implement a new trait or type instead
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hir_analysis_inherent_nominal = no nominal type found for inherent implementation
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.label = impl requires a nominal type
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.note = either implement a trait on it or create a newtype to wrap it instead
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hir_analysis_inherent_primitive_ty = cannot define inherent `impl` for primitive types
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.help = consider using an extension trait instead
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hir_analysis_inherent_primitive_ty_note = you could also try moving the reference to uses of `{$subty}` (such as `self`) within the implementation
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hir_analysis_inherent_ty_outside = cannot define inherent `impl` for a type outside of the crate where the type is defined
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.help = consider moving this inherent impl into the crate defining the type if possible
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.span_help = alternatively add `#[rustc_has_incoherent_inherent_impls]` to the type and `#[rustc_allow_incoherent_impl]` to the relevant impl items
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hir_analysis_inherent_ty_outside_new = cannot define inherent `impl` for a type outside of the crate where the type is defined
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.label = impl for type defined outside of crate
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.note = define and implement a trait or new type instead
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hir_analysis_inherent_ty_outside_primitive = cannot define inherent `impl` for primitive types outside of `core`
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.help = consider moving this inherent impl into `core` if possible
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.span_help = alternatively add `#[rustc_allow_incoherent_impl]` to the relevant impl items
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hir_analysis_inherent_ty_outside_relevant = cannot define inherent `impl` for a type outside of the crate where the type is defined
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.help = consider moving this inherent impl into the crate defining the type if possible
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.span_help = alternatively add `#[rustc_allow_incoherent_impl]` to the relevant impl items
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hir_analysis_invalid_generic_receiver_ty = invalid generic `self` parameter type: `{$receiver_ty}`
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.note = type of `self` must not be a method generic parameter type
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hir_analysis_invalid_generic_receiver_ty_help =
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use a concrete type such as `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)
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hir_analysis_invalid_receiver_ty = invalid `self` parameter type: `{$receiver_ty}`
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.note = type of `self` must be `Self` or a type that dereferences to it
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hir_analysis_invalid_receiver_ty_help =
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consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)
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hir_analysis_invalid_union_field =
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field must implement `Copy` or be wrapped in `ManuallyDrop<...>` to be used in a union
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.note = union fields must not have drop side-effects, which is currently enforced via either `Copy` or `ManuallyDrop<...>`
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hir_analysis_invalid_union_field_sugg =
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wrap the field type in `ManuallyDrop<...>`
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hir_analysis_late_bound_const_in_apit = `impl Trait` can only mention const parameters from an fn or impl
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.label = const parameter declared here
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hir_analysis_late_bound_lifetime_in_apit = `impl Trait` can only mention lifetimes from an fn or impl
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.label = lifetime declared here
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hir_analysis_late_bound_type_in_apit = `impl Trait` can only mention type parameters from an fn or impl
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.label = type parameter declared here
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hir_analysis_lifetime_implicitly_captured = `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list
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.param_label = all lifetime parameters originating from a trait are captured implicitly
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hir_analysis_lifetime_must_be_first = lifetime parameter `{$name}` must be listed before non-lifetime parameters
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.label = move the lifetime before this parameter
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hir_analysis_lifetime_not_captured = `impl Trait` captures lifetime parameter, but it is not mentioned in `use<...>` precise captures list
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.label = lifetime captured due to being mentioned in the bounds of the `impl Trait`
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.param_label = this lifetime parameter is captured
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hir_analysis_lifetimes_or_bounds_mismatch_on_trait =
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lifetime parameters or bounds on {$item_kind} `{$ident}` do not match the trait declaration
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.label = lifetimes do not match {$item_kind} in trait
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.generics_label = lifetimes in impl do not match this {$item_kind} in trait
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.where_label = this `where` clause might not match the one in the trait
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.bounds_label = this bound might be missing in the impl
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hir_analysis_linkage_type =
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invalid type for variable with `#[linkage]` attribute
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hir_analysis_main_function_async = `main` function is not allowed to be `async`
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.label = `main` function is not allowed to be `async`
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hir_analysis_main_function_generic_parameters = `main` function is not allowed to have generic parameters
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.label = `main` cannot have generic parameters
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hir_analysis_main_function_return_type_generic = `main` function return type is not allowed to have generic parameters
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hir_analysis_manual_implementation =
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manual implementations of `{$trait_name}` are experimental
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.label = manual implementations of `{$trait_name}` are experimental
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.help = add `#![feature(unboxed_closures)]` to the crate attributes to enable
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hir_analysis_method_should_return_future = method should be `async` or return a future, but it is synchronous
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.note = this method is `async` so it expects a future to be returned
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hir_analysis_missing_one_of_trait_item = not all trait items implemented, missing one of: `{$missing_items_msg}`
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.label = missing one of `{$missing_items_msg}` in implementation
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.note = required because of this annotation
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hir_analysis_missing_trait_item = not all trait items implemented, missing: `{$missing_items_msg}`
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.label = missing `{$missing_items_msg}` in implementation
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hir_analysis_missing_trait_item_label = `{$item}` from trait
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hir_analysis_missing_trait_item_suggestion = implement the missing item: `{$snippet}`
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hir_analysis_missing_trait_item_unstable = not all trait items implemented, missing: `{$missing_item_name}`
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.note = default implementation of `{$missing_item_name}` is unstable
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.some_note = use of unstable library feature '{$feature}': {$reason}
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.none_note = use of unstable library feature '{$feature}'
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hir_analysis_missing_type_params =
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the type {$parameterCount ->
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[one] parameter
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*[other] parameters
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} {$parameters} must be explicitly specified
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.label = type {$parameterCount ->
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[one] parameter
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*[other] parameters
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} {$parameters} must be specified for this
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.suggestion = set the type {$parameterCount ->
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[one] parameter
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*[other] parameters
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} to the desired {$parameterCount ->
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[one] type
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*[other] types
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}
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.no_suggestion_label = missing {$parameterCount ->
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[one] reference
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*[other] references
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} to {$parameters}
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.note = because of the default `Self` reference, type parameters must be specified on object types
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hir_analysis_multiple_relaxed_default_bounds =
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type parameter has more than one relaxed default bound, only one is supported
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hir_analysis_must_be_name_of_associated_function = must be a name of an associated function
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hir_analysis_must_implement_not_function = not a function
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hir_analysis_must_implement_not_function_note = all `#[rustc_must_implement_one_of]` arguments must be associated function names
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hir_analysis_must_implement_not_function_span_note = required by this annotation
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hir_analysis_must_implement_one_of_attribute = the `#[rustc_must_implement_one_of]` attribute must be used with at least 2 args
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hir_analysis_not_supported_delegation = {$descr}
|
|
.label = callee defined here
|
|
|
|
hir_analysis_only_current_traits_adt = `{$name}` is not defined in the current crate
|
|
|
|
hir_analysis_only_current_traits_arbitrary = only traits defined in the current crate can be implemented for arbitrary types
|
|
|
|
hir_analysis_only_current_traits_foreign = this is not defined in the current crate because this is a foreign trait
|
|
|
|
hir_analysis_only_current_traits_name = this is not defined in the current crate because {$name} are always foreign
|
|
|
|
hir_analysis_only_current_traits_note = define and implement a trait or new type instead
|
|
|
|
hir_analysis_only_current_traits_note_more_info = for more information see https://doc.rust-lang.org/reference/items/implementations.html#orphan-rules
|
|
|
|
hir_analysis_only_current_traits_note_uncovered = impl doesn't have any local type before any uncovered type parameters
|
|
|
|
hir_analysis_only_current_traits_opaque = type alias impl trait is treated as if it were foreign, because its hidden type could be from a foreign crate
|
|
|
|
hir_analysis_only_current_traits_outside = only traits defined in the current crate can be implemented for types defined outside of the crate
|
|
|
|
hir_analysis_only_current_traits_pointer = `{$pointer}` is not defined in the current crate because raw pointers are always foreign
|
|
|
|
hir_analysis_only_current_traits_pointer_sugg = consider introducing a new wrapper type
|
|
|
|
hir_analysis_only_current_traits_primitive = only traits defined in the current crate can be implemented for primitive types
|
|
|
|
hir_analysis_only_current_traits_ty = `{$ty}` is not defined in the current crate
|
|
|
|
hir_analysis_opaque_captures_higher_ranked_lifetime = `impl Trait` cannot capture {$bad_place}
|
|
.label = `impl Trait` implicitly captures all lifetimes in scope
|
|
.note = lifetime declared here
|
|
|
|
hir_analysis_param_in_ty_of_assoc_const_binding =
|
|
the type of the associated constant `{$assoc_const}` must not depend on {$param_category ->
|
|
[self] `Self`
|
|
[synthetic] `impl Trait`
|
|
*[normal] generic parameters
|
|
}
|
|
.label = its type must not depend on {$param_category ->
|
|
[self] `Self`
|
|
[synthetic] `impl Trait`
|
|
*[normal] the {$param_def_kind} `{$param_name}`
|
|
}
|
|
.param_defined_here_label = {$param_category ->
|
|
[synthetic] the `impl Trait` is specified here
|
|
*[normal] the {$param_def_kind} `{$param_name}` is defined here
|
|
}
|
|
|
|
hir_analysis_param_not_captured = `impl Trait` must mention all {$kind} parameters in scope in `use<...>`
|
|
.label = {$kind} parameter is implicitly captured by this `impl Trait`
|
|
.note = currently, all {$kind} parameters are required to be mentioned in the precise captures list
|
|
|
|
hir_analysis_paren_sugar_attribute = the `#[rustc_paren_sugar]` attribute is a temporary means of controlling which traits can use parenthetical notation
|
|
.help = add `#![feature(unboxed_closures)]` to the crate attributes to use it
|
|
|
|
hir_analysis_parenthesized_fn_trait_expansion =
|
|
parenthesized trait syntax expands to `{$expanded_type}`
|
|
|
|
hir_analysis_pattern_type_non_const_range = range patterns must have constant range start and end
|
|
hir_analysis_pattern_type_wild_pat = wildcard patterns are not permitted for pattern types
|
|
.label = this type is the same as the inner type without a pattern
|
|
hir_analysis_placeholder_not_allowed_item_signatures = the placeholder `_` is not allowed within types on item signatures for {$kind}
|
|
.label = not allowed in type signatures
|
|
|
|
hir_analysis_precise_capture_self_alias = `Self` can't be captured in `use<...>` precise captures list, since it is an alias
|
|
.label = `Self` is not a generic argument, but an alias to the type of the {$what}
|
|
|
|
hir_analysis_recursive_generic_parameter = {$param_def_kind} `{$param_name}` is only used recursively
|
|
.label = {$param_def_kind} must be used non-recursively in the definition
|
|
.note = all type parameters must be used in a non-recursive way in order to constrain their variance
|
|
|
|
hir_analysis_redundant_lifetime_args = unnecessary lifetime parameter `{$victim}`
|
|
.note = you can use the `{$candidate}` lifetime directly, in place of `{$victim}`
|
|
|
|
hir_analysis_requires_note = the `{$trait_name}` impl for `{$ty}` requires that `{$error_predicate}`
|
|
|
|
hir_analysis_return_type_notation_equality_bound =
|
|
return type notation is not allowed to use type equality
|
|
|
|
hir_analysis_return_type_notation_illegal_param_const =
|
|
return type notation is not allowed for functions that have const parameters
|
|
.label = const parameter declared here
|
|
hir_analysis_return_type_notation_illegal_param_type =
|
|
return type notation is not allowed for functions that have type parameters
|
|
.label = type parameter declared here
|
|
|
|
hir_analysis_return_type_notation_on_non_rpitit =
|
|
return type notation used on function that is not `async` and does not return `impl Trait`
|
|
.note = function returns `{$ty}`, which is not compatible with associated type return bounds
|
|
.label = this function must be `async` or return `impl Trait`
|
|
|
|
hir_analysis_rpitit_refined = impl trait in impl method signature does not match trait method signature
|
|
.suggestion = replace the return type so that it matches the trait
|
|
.label = return type from trait method defined here
|
|
.unmatched_bound_label = this bound is stronger than that defined on the trait
|
|
.note = add `#[allow(refining_impl_trait)]` if it is intended for this to be part of the public API of this crate
|
|
.feedback_note = we are soliciting feedback, see issue #121718 <https://github.com/rust-lang/rust/issues/121718> for more information
|
|
|
|
hir_analysis_self_in_impl_self =
|
|
`Self` is not valid in the self type of an impl block
|
|
.note = replace `Self` with a different type
|
|
|
|
hir_analysis_self_ty_not_captured = `impl Trait` must mention the `Self` type of the trait in `use<...>`
|
|
.label = `Self` type parameter is implicitly captured by this `impl Trait`
|
|
.note = currently, all type parameters are required to be mentioned in the precise captures list
|
|
|
|
hir_analysis_simd_ffi_highly_experimental = use of SIMD type{$snip} in FFI is highly experimental and may result in invalid code
|
|
.help = add `#![feature(simd_ffi)]` to the crate attributes to enable
|
|
|
|
hir_analysis_specialization_trait = implementing `rustc_specialization_trait` traits is unstable
|
|
.help = add `#![feature(min_specialization)]` to the crate attributes to enable
|
|
|
|
hir_analysis_start_function_parameters = `#[start]` function is not allowed to have type parameters
|
|
.label = `#[start]` function cannot have type parameters
|
|
|
|
hir_analysis_start_function_where = `#[start]` function is not allowed to have a `where` clause
|
|
.label = `#[start]` function cannot have a `where` clause
|
|
|
|
hir_analysis_start_not_async = `#[start]` function is not allowed to be `async`
|
|
.label = `#[start]` is not allowed to be `async`
|
|
|
|
hir_analysis_start_not_target_feature = `#[start]` function is not allowed to have `#[target_feature]`
|
|
.label = `#[start]` function is not allowed to have `#[target_feature]`
|
|
|
|
hir_analysis_start_not_track_caller = `#[start]` function is not allowed to be `#[track_caller]`
|
|
.label = `#[start]` function is not allowed to be `#[track_caller]`
|
|
|
|
hir_analysis_static_specialize = cannot specialize on `'static` lifetime
|
|
|
|
hir_analysis_tait_forward_compat = item constrains opaque type that is not in its signature
|
|
.note = this item must mention the opaque type in its signature in order to be able to register hidden types
|
|
|
|
hir_analysis_tait_forward_compat2 = item does not constrain `{$opaque_type}`, but has it in its signature
|
|
.note = consider moving the opaque type's declaration and defining uses into a separate module
|
|
.opaque = this opaque type is in the signature
|
|
|
|
hir_analysis_target_feature_on_main = `main` function is not allowed to have `#[target_feature]`
|
|
|
|
hir_analysis_too_large_static = extern static is too large for the target architecture
|
|
|
|
hir_analysis_track_caller_on_main = `main` function is not allowed to be `#[track_caller]`
|
|
.suggestion = remove this annotation
|
|
|
|
hir_analysis_trait_cannot_impl_for_ty = the trait `{$trait_name}` cannot be implemented for this type
|
|
.label = this field does not implement `{$trait_name}`
|
|
|
|
hir_analysis_trait_object_declared_with_no_traits =
|
|
at least one trait is required for an object type
|
|
.alias_span = this alias does not contain a trait
|
|
|
|
hir_analysis_traits_with_defualt_impl = traits with a default impl, like `{$traits}`, cannot be implemented for {$problematic_kind} `{$self_ty}`
|
|
.note = a trait object implements `{$traits}` if and only if `{$traits}` is one of the trait object's trait bounds
|
|
|
|
hir_analysis_transparent_enum_variant = transparent enum needs exactly one variant, but has {$number}
|
|
.label = needs exactly one variant, but has {$number}
|
|
.many_label = too many variants in `{$path}`
|
|
.multi_label = variant here
|
|
|
|
hir_analysis_transparent_non_zero_sized = transparent {$desc} needs at most one field with non-trivial size or alignment, but has {$field_count}
|
|
.label = needs at most one field with non-trivial size or alignment, but has {$field_count}
|
|
.labels = this field has non-zero size or requires alignment
|
|
|
|
hir_analysis_transparent_non_zero_sized_enum = the variant of a transparent {$desc} needs at most one field with non-trivial size or alignment, but has {$field_count}
|
|
.label = needs at most one field with non-trivial size or alignment, but has {$field_count}
|
|
.labels = this field has non-zero size or requires alignment
|
|
|
|
hir_analysis_ty_of_assoc_const_binding_note = `{$assoc_const}` has type `{$ty}`
|
|
|
|
hir_analysis_ty_param_first_local = type parameter `{$param}` must be covered by another type when it appears before the first local type (`{$local_type}`)
|
|
.label = type parameter `{$param}` must be covered by another type when it appears before the first local type (`{$local_type}`)
|
|
.note = implementing a foreign trait is only possible if at least one of the types for which it is implemented is local, and no uncovered type parameters appear before that first local type
|
|
.case_note = in this case, 'before' refers to the following order: `impl<..> ForeignTrait<T1, ..., Tn> for T0`, where `T0` is the first and `Tn` is the last
|
|
|
|
hir_analysis_ty_param_some = type parameter `{$param}` must be used as the type parameter for some local type (e.g., `MyStruct<{$param}>`)
|
|
.label = type parameter `{$param}` must be used as the type parameter for some local type
|
|
.note = implementing a foreign trait is only possible if at least one of the types for which it is implemented is local
|
|
.only_note = only traits defined in the current crate can be implemented for a type parameter
|
|
|
|
hir_analysis_type_of = {$ty}
|
|
|
|
hir_analysis_typeof_reserved_keyword_used =
|
|
`typeof` is a reserved keyword but unimplemented
|
|
.suggestion = consider replacing `typeof(...)` with an actual type
|
|
.label = reserved keyword
|
|
|
|
hir_analysis_unconstrained_generic_parameter = the {$param_def_kind} `{$param_name}` is not constrained by the impl trait, self type, or predicates
|
|
.label = unconstrained {$param_def_kind}
|
|
.const_param_note = expressions using a const parameter must map each value to a distinct output value
|
|
.const_param_note2 = proving the result of expressions other than the parameter are unique is not supported
|
|
|
|
hir_analysis_unconstrained_opaque_type = unconstrained opaque type
|
|
.note = `{$name}` must be used in combination with a concrete type within the same {$what}
|
|
|
|
hir_analysis_unrecognized_atomic_operation =
|
|
unrecognized atomic operation function: `{$op}`
|
|
.label = unrecognized atomic operation
|
|
|
|
hir_analysis_unrecognized_intrinsic_function =
|
|
unrecognized intrinsic function: `{$name}`
|
|
.label = unrecognized intrinsic
|
|
.help = if you're adding an intrinsic, be sure to update `check_intrinsic_type`
|
|
|
|
hir_analysis_unused_associated_type_bounds =
|
|
unnecessary associated type bound for dyn-incompatible associated type
|
|
.note = this associated type has a `where Self: Sized` bound, and while the associated type can be specified, it cannot be used because trait objects are never `Sized`
|
|
.suggestion = remove this bound
|
|
|
|
hir_analysis_unused_generic_parameter =
|
|
{$param_def_kind} `{$param_name}` is never used
|
|
.label = unused {$param_def_kind}
|
|
.const_param_help = if you intended `{$param_name}` to be a const parameter, use `const {$param_name}: /* Type */` instead
|
|
.usage_spans = `{$param_name}` is named here, but is likely unused in the containing type
|
|
|
|
hir_analysis_unused_generic_parameter_adt_help =
|
|
consider removing `{$param_name}`, referring to it in a field, or using a marker such as `{$phantom_data}`
|
|
hir_analysis_unused_generic_parameter_adt_no_phantom_data_help =
|
|
consider removing `{$param_name}` or referring to it in a field
|
|
hir_analysis_unused_generic_parameter_ty_alias_help =
|
|
consider removing `{$param_name}` or referring to it in the body of the type alias
|
|
|
|
hir_analysis_value_of_associated_struct_already_specified =
|
|
the value of the associated type `{$item_name}` in trait `{$def_path}` is already specified
|
|
.label = re-bound here
|
|
.previous_bound_label = `{$item_name}` bound here first
|
|
|
|
hir_analysis_variadic_function_compatible_convention = C-variadic function must have a compatible calling convention, like {$conventions}
|
|
.label = C-variadic function must have a compatible calling convention
|
|
|
|
hir_analysis_variances_of = {$variances}
|
|
|
|
hir_analysis_where_clause_on_main = `main` function is not allowed to have a `where` clause
|
|
.label = `main` cannot have a `where` clause
|
|
|
|
hir_analysis_wrong_number_of_generic_arguments_to_intrinsic =
|
|
intrinsic has wrong number of {$descr} parameters: found {$found}, expected {$expected}
|
|
.label = expected {$expected} {$descr} {$expected ->
|
|
[one] parameter
|
|
*[other] parameters
|
|
}
|