struct AstValidator<'a> {
sess: &'a Session,
features: &'a Features,
extern_mod_span: Option<Span>,
outer_trait_or_trait_impl: Option<TraitOrTraitImpl>,
has_proc_macro_decls: bool,
outer_impl_trait_span: Option<Span>,
disallow_tilde_const: Option<TildeConstReason>,
extern_mod_safety: Option<Safety>,
extern_mod_abi: Option<ExternAbi>,
lint_node_id: NodeId,
is_sdylib_interface: bool,
lint_buffer: &'a mut LintBuffer,
}
Fields§
§sess: &'a Session
§features: &'a Features
§extern_mod_span: Option<Span>
The span of the extern
in an extern { ... }
block, if any.
outer_trait_or_trait_impl: Option<TraitOrTraitImpl>
§has_proc_macro_decls: bool
§outer_impl_trait_span: Option<Span>
Used to ban nested impl Trait
, e.g., impl Into<impl Debug>
.
Nested impl Trait
is allowed in associated type position,
e.g., impl Iterator<Item = impl Debug>
.
disallow_tilde_const: Option<TildeConstReason>
§extern_mod_safety: Option<Safety>
Used to ban explicit safety on foreign items when the extern block is not marked as unsafe.
extern_mod_abi: Option<ExternAbi>
§lint_node_id: NodeId
§is_sdylib_interface: bool
§lint_buffer: &'a mut LintBuffer
Implementations§
Source§impl<'a> AstValidator<'a>
impl<'a> AstValidator<'a>
fn with_in_trait_impl( &mut self, trait_: Option<(Const, ImplPolarity, &'a TraitRef)>, f: impl FnOnce(&mut Self), )
fn with_in_trait( &mut self, span: Span, constness_span: Option<Span>, f: impl FnOnce(&mut Self), )
fn with_in_extern_mod( &mut self, extern_mod_safety: Safety, abi: Option<ExternAbi>, f: impl FnOnce(&mut Self), )
fn with_tilde_const( &mut self, disallowed: Option<TildeConstReason>, f: impl FnOnce(&mut Self), )
fn check_type_alias_where_clause_location( &mut self, ty_alias: &TyAlias, ) -> Result<(), WhereClauseBeforeTypeAlias>
fn with_impl_trait( &mut self, outer_span: Option<Span>, f: impl FnOnce(&mut Self), )
fn walk_ty(&mut self, t: &'a Ty)
fn dcx(&self) -> DiagCtxtHandle<'a>
fn visibility_not_permitted( &self, vis: &Visibility, note: VisibilityNotPermittedNote, )
fn check_decl_no_pat( decl: &FnDecl, report_err: impl FnMut(Span, Option<Ident>, bool), )
fn check_trait_fn_not_const(&self, constness: Const, parent: &TraitOrTraitImpl)
fn check_fn_decl(&self, fn_decl: &FnDecl, self_semantic: SelfSemantic)
Sourcefn check_decl_num_args(&self, fn_decl: &FnDecl)
fn check_decl_num_args(&self, fn_decl: &FnDecl)
Emits fatal error if function declaration has more than u16::MAX
arguments
Error is fatal to prevent errors during typechecking
Sourcefn check_decl_cvariadic_pos(&self, fn_decl: &FnDecl)
fn check_decl_cvariadic_pos(&self, fn_decl: &FnDecl)
Emits an error if a function declaration has a variadic parameter in the
beginning or middle of parameter list.
Example: fn foo(..., x: i32)
will emit an error.
fn check_decl_attrs(&self, fn_decl: &FnDecl)
fn check_decl_self_param(&self, fn_decl: &FnDecl, self_semantic: SelfSemantic)
Sourcefn check_extern_fn_signature(
&self,
abi: ExternAbi,
ctxt: FnCtxt,
ident: &Ident,
sig: &FnSig,
)
fn check_extern_fn_signature( &self, abi: ExternAbi, ctxt: FnCtxt, ident: &Ident, sig: &FnSig, )
Check that the signature of this function does not violate the constraints of its ABI.
fn reject_safe_fn(&self, abi: ExternAbi, ctxt: FnCtxt, sig: &FnSig)
fn reject_coroutine(&self, abi: ExternAbi, sig: &FnSig)
fn reject_params_or_return(&self, abi: ExternAbi, ident: &Ident, sig: &FnSig)
Sourcefn check_item_safety(&self, span: Span, safety: Safety)
fn check_item_safety(&self, span: Span, safety: Safety)
This ensures that items can only be unsafe
(or unmarked) outside of extern
blocks.
This additionally ensures that within extern blocks, items can only be
safe
/unsafe
inside of a unsafe
-adorned extern block.
fn check_bare_fn_safety(&self, span: Span, safety: Safety)
fn check_defaultness(&self, span: Span, defaultness: Defaultness)
Sourcefn ending_semi_or_hi(&self, sp: Span) -> Span
fn ending_semi_or_hi(&self, sp: Span) -> Span
If sp
ends with a semicolon, returns it as a Span
Otherwise, returns sp.shrink_to_hi()
fn check_type_no_bounds(&self, bounds: &[GenericBound], ctx: &str)
fn check_foreign_ty_genericless( &self, generics: &Generics, where_clauses: &TyAliasWhereClauses, )
fn check_foreign_kind_bodyless( &self, ident: Ident, kind: &str, body_span: Option<Span>, )
Sourcefn check_foreign_fn_bodyless(&self, ident: Ident, body: Option<&Block>)
fn check_foreign_fn_bodyless(&self, ident: Ident, body: Option<&Block>)
An fn
in extern { ... }
cannot have a body { ... }
.
fn current_extern_span(&self) -> Span
Sourcefn check_foreign_fn_headerless(&self, _: FnHeader)
fn check_foreign_fn_headerless(&self, _: FnHeader)
An fn
in extern { ... }
cannot have qualifiers, e.g. async fn
.
Sourcefn check_foreign_item_ascii_only(&self, ident: Ident)
fn check_foreign_item_ascii_only(&self, ident: Ident)
An item in extern { ... }
cannot use non-ascii identifier.
Sourcefn check_c_variadic_type(&self, fk: FnKind<'a>)
fn check_c_variadic_type(&self, fk: FnKind<'a>)
Reject invalid C-variadic types.
C-variadics must be:
- Non-const
- Either foreign, or free and
unsafe extern "C"
semantically
fn check_item_named(&self, ident: Ident, kind: &str)
fn check_nomangle_item_asciionly(&self, ident: Ident, item_span: Span)
fn check_mod_file_item_asciionly(&self, ident: Ident)
fn deny_generic_params(&self, generics: &Generics, ident_span: Span)
fn deny_super_traits(&self, bounds: &GenericBounds, ident_span: Span)
fn deny_where_clause(&self, where_clause: &WhereClause, ident_span: Span)
fn deny_items(&self, trait_items: &[P<AssocItem>], ident_span: Span)
fn correct_generic_order_suggestion(&self, data: &AngleBracketedArgs) -> String
Sourcefn check_generic_args_before_constraints(&self, data: &AngleBracketedArgs)
fn check_generic_args_before_constraints(&self, data: &AngleBracketedArgs)
Enforce generic args coming before constraints in <...>
of a path segment.
fn visit_ty_common(&mut self, ty: &'a Ty)
fn handle_missing_abi(&mut self, span: Span, id: NodeId)
fn visit_attrs_vis(&mut self, attrs: &'a AttrVec, vis: &'a Visibility)
fn visit_attrs_vis_ident( &mut self, attrs: &'a AttrVec, vis: &'a Visibility, ident: &'a Ident, )
Trait Implementations§
Source§impl<'a> Visitor<'a> for AstValidator<'a>
impl<'a> Visitor<'a> for AstValidator<'a>
fn visit_attribute(&mut self, attr: &Attribute)
fn visit_ty(&mut self, ty: &'a Ty)
fn visit_item(&mut self, item: &'a Item)
fn visit_foreign_item(&mut self, fi: &'a ForeignItem)
fn visit_generic_args(&mut self, generic_args: &'a GenericArgs)
fn visit_generics(&mut self, generics: &'a Generics)
fn visit_param_bound(&mut self, bound: &'a GenericBound, ctxt: BoundKind)
fn visit_fn(&mut self, fk: FnKind<'a>, span: Span, id: NodeId)
fn visit_assoc_item(&mut self, item: &'a AssocItem, ctxt: AssocCtxt)
fn visit_ident(&mut self, _: &'a Ident) -> Self::Result
fn visit_foreign_mod(&mut self, nm: &'a ForeignMod) -> Self::Result
fn visit_local(&mut self, l: &'a Local) -> Self::Result
fn visit_block(&mut self, b: &'a Block) -> Self::Result
fn visit_param(&mut self, param: &'a Param) -> Self::Result
fn visit_arm(&mut self, a: &'a Arm) -> Self::Result
fn visit_pat(&mut self, p: &'a Pat) -> Self::Result
fn visit_anon_const(&mut self, c: &'a AnonConst) -> Self::Result
fn visit_expr(&mut self, ex: &'a Expr) -> Self::Result
Source§fn visit_method_receiver_expr(&mut self, ex: &'a Expr) -> Self::Result
fn visit_method_receiver_expr(&mut self, ex: &'a Expr) -> Self::Result
stmt_expr_attributes
.
It can be removed once that feature is stabilized.fn visit_ty_pat(&mut self, t: &'a TyPat) -> Self::Result
fn visit_generic_param(&mut self, param: &'a GenericParam) -> Self::Result
fn visit_closure_binder(&mut self, b: &'a ClosureBinder) -> Self::Result
fn visit_contract(&mut self, c: &'a FnContract) -> Self::Result
fn visit_where_predicate(&mut self, p: &'a WherePredicate) -> Self::Result
fn visit_where_predicate_kind( &mut self, k: &'a WherePredicateKind, ) -> Self::Result
fn visit_trait_ref(&mut self, t: &'a TraitRef) -> Self::Result
fn visit_precise_capturing_arg( &mut self, arg: &'a PreciseCapturingArg, ) -> Self::Result
fn visit_poly_trait_ref(&mut self, t: &'a PolyTraitRef) -> Self::Result
fn visit_variant_data(&mut self, s: &'a VariantData) -> Self::Result
fn visit_field_def(&mut self, s: &'a FieldDef) -> Self::Result
fn visit_variant(&mut self, v: &'a Variant) -> Self::Result
fn visit_label(&mut self, label: &'a Label) -> Self::Result
fn visit_lifetime( &mut self, lifetime: &'a Lifetime, _: LifetimeCtxt, ) -> Self::Result
fn visit_mac_call(&mut self, mac: &'a MacCall) -> Self::Result
fn visit_id(&mut self, _id: NodeId) -> Self::Result
fn visit_macro_def(&mut self, macro_def: &'a MacroDef) -> Self::Result
fn visit_path(&mut self, path: &'a Path) -> Self::Result
fn visit_use_tree(&mut self, use_tree: &'a UseTree) -> Self::Result
fn visit_path_segment(&mut self, path_segment: &'a PathSegment) -> Self::Result
fn visit_generic_arg(&mut self, generic_arg: &'a GenericArg) -> Self::Result
fn visit_assoc_item_constraint( &mut self, constraint: &'a AssocItemConstraint, ) -> Self::Result
fn visit_vis(&mut self, vis: &'a Visibility) -> Self::Result
fn visit_fn_ret_ty(&mut self, ret_ty: &'a FnRetTy) -> Self::Result
fn visit_fn_header(&mut self, header: &'a FnHeader) -> Self::Result
fn visit_expr_field(&mut self, f: &'a ExprField) -> Self::Result
fn visit_pat_field(&mut self, fp: &'a PatField) -> Self::Result
fn visit_crate(&mut self, krate: &'a Crate) -> Self::Result
fn visit_inline_asm(&mut self, asm: &'a InlineAsm) -> Self::Result
fn visit_format_args(&mut self, fmt: &'a FormatArgs) -> Self::Result
fn visit_inline_asm_sym(&mut self, sym: &'a InlineAsmSym) -> Self::Result
fn visit_capture_by(&mut self, capture_by: &'a CaptureBy) -> Self::Result
fn visit_coroutine_kind( &mut self, coroutine_kind: &'a CoroutineKind, ) -> Self::Result
fn visit_fn_decl(&mut self, fn_decl: &'a FnDecl) -> Self::Result
fn visit_qself(&mut self, qs: &'a Option<Box<QSelf>>) -> Self::Result
fn visit_stmt(&mut self, s: &'a Stmt) -> Self::Result
fn visit_nested_use_tree( &mut self, use_tree: &'a UseTree, id: NodeId, ) -> Self::Result
Auto Trait Implementations§
impl<'a> DynSend for AstValidator<'a>
impl<'a> DynSync for AstValidator<'a>
impl<'a> Freeze for AstValidator<'a>
impl<'a> !RefUnwindSafe for AstValidator<'a>
impl<'a> !Send for AstValidator<'a>
impl<'a> !Sync for AstValidator<'a>
impl<'a> Unpin for AstValidator<'a>
impl<'a> !UnwindSafe for AstValidator<'a>
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Source§impl<T, R> CollectAndApply<T, R> for T
impl<T, R> CollectAndApply<T, R> for T
Source§impl<T> Filterable for T
impl<T> Filterable for T
Source§fn filterable(
self,
filter_name: &'static str,
) -> RequestFilterDataProvider<T, fn(DataRequest<'_>) -> bool>
fn filterable( self, filter_name: &'static str, ) -> RequestFilterDataProvider<T, fn(DataRequest<'_>) -> bool>
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left
is true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
self
into a Left
variant of Either<Self, Self>
if into_left(&self)
returns true
.
Converts self
into a Right
variant of Either<Self, Self>
otherwise. Read moreSource§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
impl<I, T, U> Upcast<I, U> for Twhere
U: UpcastFrom<I, T>,
Source§impl<I, T> UpcastFrom<I, T> for T
impl<I, T> UpcastFrom<I, T> for T
fn upcast_from(from: T, _tcx: I) -> T
Source§impl<T> WithSubscriber for T
impl<T> WithSubscriber for T
Source§fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
Source§fn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
impl<T> ErasedDestructor for Twhere
T: 'static,
Layout§
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...)
attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.
Size: 112 bytes