mirror of
https://github.com/rust-lang/rust
synced 2024-07-21 02:15:40 +00:00
aaef5fe497
Refactor AST trait bound modifiers Instead of having two types to represent trait bound modifiers in the parser / the AST (`parser::ty::BoundModifiers` & `ast::TraitBoundModifier`), only to map one to the other later, just use `parser::ty::BoundModifiers` (moved & renamed to `ast::TraitBoundModifiers`). The struct type is more extensible and easier to deal with (see [here](https://github.com/rust-lang/rust/pull/119099/files#r1430749981) and [here](https://github.com/rust-lang/rust/pull/119099/files#r1430752116) for context) since it more closely models what it represents: A compound of two kinds of modifiers, constness and polarity. Modeling this as an enum (the now removed `ast::TraitBoundModifier`) meant one had to add a new variant per *combination* of modifier kind, which simply isn't scalable and which lead to a lot of explicit non-DRY matches. NB: `hir::TraitBoundModifier` being an enum is fine since HIR doesn't need to worry representing invalid modifier kind combinations as those get rejected during AST validation thereby immensely cutting down the number of possibilities.
263 lines
11 KiB
Plaintext
263 lines
11 KiB
Plaintext
ast_passes_anon_struct_or_union_not_allowed =
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anonymous {$struct_or_union}s are not allowed outside of unnamed struct or union fields
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.label = anonymous {$struct_or_union} declared here
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ast_passes_assoc_const_without_body =
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associated constant in `impl` without body
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.suggestion = provide a definition for the constant
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ast_passes_assoc_fn_without_body =
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associated function in `impl` without body
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.suggestion = provide a definition for the function
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ast_passes_assoc_type_without_body =
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associated type in `impl` without body
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.suggestion = provide a definition for the type
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ast_passes_at_least_one_trait = at least one trait must be specified
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ast_passes_auto_generic = auto traits cannot have generic parameters
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.label = auto trait cannot have generic parameters
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.suggestion = remove the parameters
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ast_passes_auto_items = auto traits cannot have associated items
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.label = {ast_passes_auto_items}
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.suggestion = remove these associated items
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ast_passes_auto_super_lifetime = auto traits cannot have super traits or lifetime bounds
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.label = {ast_passes_auto_super_lifetime}
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.suggestion = remove the super traits or lifetime bounds
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ast_passes_bad_c_variadic = only foreign or `unsafe extern "C"` functions may be C-variadic
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ast_passes_body_in_extern = incorrect `{$kind}` inside `extern` block
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.cannot_have = cannot have a body
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.invalid = the invalid body
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.existing = `extern` blocks define existing foreign {$kind}s and {$kind}s inside of them cannot have a body
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ast_passes_bound_in_context = bounds on `type`s in {$ctx} have no effect
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ast_passes_const_and_async = functions cannot be both `const` and `async`
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.const = `const` because of this
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.async = `async` because of this
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.label = {""}
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ast_passes_const_and_c_variadic = functions cannot be both `const` and C-variadic
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.const = `const` because of this
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.variadic = C-variadic because of this
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ast_passes_const_without_body =
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free constant item without body
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.suggestion = provide a definition for the constant
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ast_passes_constraint_on_negative_bound =
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associated type constraints not allowed on negative bounds
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ast_passes_deprecated_where_clause_location =
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where clause not allowed here
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ast_passes_equality_in_where = equality constraints are not yet supported in `where` clauses
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.label = not supported
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.suggestion = if `{$ident}` is an associated type you're trying to set, use the associated type binding syntax
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.suggestion_path = if `{$trait_segment}::{$potential_assoc}` is an associated type you're trying to set, use the associated type binding syntax
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.note = see issue #20041 <https://github.com/rust-lang/rust/issues/20041> for more information
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ast_passes_extern_block_suggestion = if you meant to declare an externally defined function, use an `extern` block
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ast_passes_extern_fn_qualifiers = functions in `extern` blocks cannot have qualifiers
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.label = in this `extern` block
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.suggestion = remove the qualifiers
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ast_passes_extern_item_ascii = items in `extern` blocks cannot use non-ascii identifiers
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.label = in this `extern` block
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.note = this limitation may be lifted in the future; see issue #83942 <https://github.com/rust-lang/rust/issues/83942> for more information
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ast_passes_extern_keyword_link = for more information, visit https://doc.rust-lang.org/std/keyword.extern.html
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ast_passes_extern_types_cannot = `type`s inside `extern` blocks cannot have {$descr}
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.suggestion = remove the {$remove_descr}
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.label = `extern` block begins here
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ast_passes_extern_without_abi = extern declarations without an explicit ABI are deprecated
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ast_passes_feature_on_non_nightly = `#![feature]` may not be used on the {$channel} release channel
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.suggestion = remove the attribute
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.stable_since = the feature `{$name}` has been stable since `{$since}` and no longer requires an attribute to enable
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ast_passes_fieldless_union = unions cannot have zero fields
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ast_passes_fn_body_extern = incorrect function inside `extern` block
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.cannot_have = cannot have a body
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.suggestion = remove the invalid body
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.help = you might have meant to write a function accessible through FFI, which can be done by writing `extern fn` outside of the `extern` block
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.label = `extern` blocks define existing foreign functions and functions inside of them cannot have a body
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ast_passes_fn_param_c_var_args_not_last =
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`...` must be the last argument of a C-variadic function
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ast_passes_fn_param_c_var_args_only =
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C-variadic function must be declared with at least one named argument
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ast_passes_fn_param_doc_comment =
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documentation comments cannot be applied to function parameters
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.label = doc comments are not allowed here
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ast_passes_fn_param_forbidden_attr =
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allow, cfg, cfg_attr, deny, expect, forbid, and warn are the only allowed built-in attributes in function parameters
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ast_passes_fn_param_forbidden_self =
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`self` parameter is only allowed in associated functions
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.label = not semantically valid as function parameter
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.note = associated functions are those in `impl` or `trait` definitions
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ast_passes_fn_param_too_many =
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function can not have more than {$max_num_args} arguments
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ast_passes_fn_without_body =
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free function without a body
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.suggestion = provide a definition for the function
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ast_passes_forbidden_bound =
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bounds cannot be used in this context
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ast_passes_forbidden_default =
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`default` is only allowed on items in trait impls
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.label = `default` because of this
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ast_passes_forbidden_non_lifetime_param =
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only lifetime parameters can be used in this context
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ast_passes_generic_before_constraints = generic arguments must come before the first constraint
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.constraints = {$constraint_len ->
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[one] constraint
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*[other] constraints
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}
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.args = generic {$args_len ->
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[one] argument
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*[other] arguments
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}
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.empty_string = {""},
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.suggestion = move the {$constraint_len ->
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[one] constraint
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*[other] constraints
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} after the generic {$args_len ->
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[one] argument
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*[other] arguments
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}
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ast_passes_generic_default_trailing = generic parameters with a default must be trailing
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ast_passes_impl_trait_path = `impl Trait` is not allowed in path parameters
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ast_passes_incompatible_features = `{$f1}` and `{$f2}` are incompatible, using them at the same time is not allowed
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.help = remove one of these features
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ast_passes_incompatible_trait_bound_modifiers = `{$left}` and `{$right}` are mutually exclusive
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ast_passes_inherent_cannot_be = inherent impls cannot be {$annotation}
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.because = {$annotation} because of this
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.type = inherent impl for this type
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.only_trait = only trait implementations may be annotated with {$annotation}
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ast_passes_invalid_label =
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invalid label name `{$name}`
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ast_passes_invalid_unnamed_field =
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unnamed fields are not allowed outside of structs or unions
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.label = unnamed field declared here
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ast_passes_invalid_unnamed_field_ty =
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unnamed fields can only have struct or union types
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.label = not a struct or union
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ast_passes_item_underscore = `{$kind}` items in this context need a name
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.label = `_` is not a valid name for this `{$kind}` item
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ast_passes_keyword_lifetime =
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lifetimes cannot use keyword names
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ast_passes_match_arm_with_no_body =
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`match` arm with no body
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.suggestion = add a body after the pattern
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ast_passes_module_nonascii = trying to load file for module `{$name}` with non-ascii identifier name
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.help = consider using the `#[path]` attribute to specify filesystem path
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ast_passes_negative_bound_not_supported =
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negative bounds are not supported
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ast_passes_nested_impl_trait = nested `impl Trait` is not allowed
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.outer = outer `impl Trait`
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.inner = nested `impl Trait` here
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ast_passes_nested_lifetimes = nested quantification of lifetimes
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ast_passes_nomangle_ascii = `#[no_mangle]` requires ASCII identifier
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ast_passes_obsolete_auto = `impl Trait for .. {"{}"}` is an obsolete syntax
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.help = use `auto trait Trait {"{}"}` instead
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ast_passes_optional_trait_object = `?Trait` is not permitted in trait object types
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ast_passes_optional_trait_supertrait = `?Trait` is not permitted in supertraits
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.note = traits are `?{$path_str}` by default
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ast_passes_out_of_order_params = {$param_ord} parameters must be declared prior to {$max_param} parameters
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.suggestion = reorder the parameters: lifetimes, then consts and types
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ast_passes_pattern_in_bodiless = patterns aren't allowed in functions without bodies
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.label = pattern not allowed in function without body
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ast_passes_pattern_in_fn_pointer = patterns aren't allowed in function pointer types
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ast_passes_pattern_in_foreign = patterns aren't allowed in foreign function declarations
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.label = pattern not allowed in foreign function
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ast_passes_show_span = {$msg}
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ast_passes_stability_outside_std = stability attributes may not be used outside of the standard library
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ast_passes_static_without_body =
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free static item without body
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.suggestion = provide a definition for the static
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ast_passes_tilde_const_disallowed = `~const` is not allowed here
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.closure = closures cannot have `~const` trait bounds
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.function = this function is not `const`, so it cannot have `~const` trait bounds
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.trait = this trait is not a `#[const_trait]`, so it cannot have `~const` trait bounds
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.trait_impl = this impl is not `const`, so it cannot have `~const` trait bounds
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.impl = inherent impls cannot have `~const` trait bounds
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.object = trait objects cannot have `~const` trait bounds
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.item = this item cannot have `~const` trait bounds
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ast_passes_trait_fn_const =
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functions in traits cannot be declared const
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.label = functions in traits cannot be const
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ast_passes_trait_object_single_bound = only a single explicit lifetime bound is permitted
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ast_passes_ty_alias_without_body =
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free type alias without body
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.suggestion = provide a definition for the type
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ast_passes_unsafe_item = {$kind} cannot be declared unsafe
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ast_passes_unsafe_negative_impl = negative impls cannot be unsafe
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.negative = negative because of this
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.unsafe = unsafe because of this
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ast_passes_visibility_not_permitted =
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visibility qualifiers are not permitted here
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.enum_variant = enum variants and their fields always share the visibility of the enum they are in
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.trait_impl = trait items always share the visibility of their trait
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.individual_impl_items = place qualifiers on individual impl items instead
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.individual_foreign_items = place qualifiers on individual foreign items instead
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ast_passes_where_clause_after_type_alias = where clauses are not allowed after the type for type aliases
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.note = see issue #112792 <https://github.com/rust-lang/rust/issues/112792> for more information
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.help = add `#![feature(lazy_type_alias)]` to the crate attributes to enable
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ast_passes_where_clause_before_type_alias = where clauses are not allowed before the type for type aliases
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.note = see issue #89122 <https://github.com/rust-lang/rust/issues/89122> for more information
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.suggestion = move it to the end of the type declaration
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