pub(super) struct InferData {
    type_params: FxHashMap<Id, InferenceInfo>,
    errored: FxHashSet<Id>,
    defaults: FxHashMap<Id, Type>,
    dejavu: Vec<(Type, Type)>,
    skip_generalization: bool,
    priority: InferencePriority,
    contravariant: bool,
}

Fields

type_params: FxHashMap<Id, InferenceInfo>

Inferred type parameters

errored: FxHashSet<Id>defaults: FxHashMap<Id, Type>

For the code below, we can know that T defaults to unknown while inferring type of function parameters. We cannot know the type before it. So we store the default type while it.

declare function one<T>(handler: (t: T) => void): T

var empty = one(() => {
});
dejavu: Vec<(Type, Type)>skip_generalization: boolpriority: InferencePrioritycontravariant: bool

Trait Implementations

Formats the value using the given formatter. Read more
Returns the “default value” for a type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
Instruments this type with the current Span, returning an Instrumented wrapper. Read more

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The alignment of pointer.
The type for initializers.
Initializes a with the given initializer. Read more
Dereferences the given pointer. Read more
Mutably dereferences the given pointer. Read more
Drops the object pointed to by the given pointer. Read more
Should always be Self
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.
Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more