Struct rustc_resolve::late::DiagnosticMetadata
source · struct DiagnosticMetadata<'ast> {Show 19 fields
current_trait_assoc_items: Option<&'ast [P<AssocItem>]>,
current_self_type: Option<Ty>,
current_self_item: Option<NodeId>,
current_item: Option<&'ast Item>,
currently_processing_generics: bool,
current_function: Option<(FnKind<'ast>, Span)>,
unused_labels: FxHashMap<NodeId, Span>,
current_type_ascription: Vec<Span>,
current_block_could_be_bare_struct_literal: Option<Span>,
current_let_binding: Option<(Span, Option<Span>, Option<Span>)>,
in_if_condition: Option<&'ast Expr>,
in_assignment: Option<&'ast Expr>,
is_assign_rhs: bool,
current_trait_object: Option<&'ast [GenericBound]>,
current_where_predicate: Option<&'ast WherePredicate>,
current_type_path: Option<&'ast Ty>,
current_impl_items: Option<&'ast [P<AssocItem>]>,
currently_processing_impl_trait: Option<(TraitRef, Ty)>,
current_elision_failures: Vec<MissingLifetime>,
}
Fields§
§current_trait_assoc_items: Option<&'ast [P<AssocItem>]>
The current trait’s associated items’ ident, used for diagnostic suggestions.
current_self_type: Option<Ty>
The current self type if inside an impl (used for better errors).
current_self_item: Option<NodeId>
The current self item if inside an ADT (used for better errors).
current_item: Option<&'ast Item>
The current trait (used to suggest).
currently_processing_generics: bool
When processing generics and encountering a type not found, suggest introducing a type param.
current_function: Option<(FnKind<'ast>, Span)>
The current enclosing (non-closure) function (used for better errors).
unused_labels: FxHashMap<NodeId, Span>
A list of labels as of yet unused. Labels will be removed from this map when
they are used (in a break
or continue
statement)
current_type_ascription: Vec<Span>
Only used for better errors on fn(): fn()
.
current_block_could_be_bare_struct_literal: Option<Span>
Only used for better errors on let x = { foo: bar };
.
In the case of a parse error with let x = { foo: bar, };
, this isn’t needed, it’s only
needed for cases where this parses as a correct type ascription.
current_let_binding: Option<(Span, Option<Span>, Option<Span>)>
Only used for better errors on let <pat>: <expr, not type>;
.
in_if_condition: Option<&'ast Expr>
Used to detect possible if let
written without let
and to provide structured suggestion.
in_assignment: Option<&'ast Expr>
Used to detect possible new binding written without let
and to provide structured suggestion.
is_assign_rhs: bool
§current_trait_object: Option<&'ast [GenericBound]>
If we are currently in a trait object definition. Used to point at the bounds when encountering a struct or enum.
current_where_predicate: Option<&'ast WherePredicate>
Given where <T as Bar>::Baz: String
, suggest where T: Bar<Baz = String>
.
current_type_path: Option<&'ast Ty>
§current_impl_items: Option<&'ast [P<AssocItem>]>
The current impl items (used to suggest).
currently_processing_impl_trait: Option<(TraitRef, Ty)>
When processing impl trait
current_elision_failures: Vec<MissingLifetime>
Accumulate the errors due to missed lifetime elision, and report them all at once for each function.
Trait Implementations§
source§impl<'ast> Default for DiagnosticMetadata<'ast>
impl<'ast> Default for DiagnosticMetadata<'ast>
source§fn default() -> DiagnosticMetadata<'ast>
fn default() -> DiagnosticMetadata<'ast>
Auto Trait Implementations§
impl<'ast> !RefUnwindSafe for DiagnosticMetadata<'ast>
impl<'ast> !Send for DiagnosticMetadata<'ast>
impl<'ast> !Sync for DiagnosticMetadata<'ast>
impl<'ast> Unpin for DiagnosticMetadata<'ast>
impl<'ast> !UnwindSafe for DiagnosticMetadata<'ast>
Blanket Implementations§
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: 440 bytes