Doubter - v5.2.0
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    Class LazyShape<ProvidedShape, Pointer>

    Lazily loads a shape using the provider callback.

    Type Parameters

    • ProvidedShape extends AnyShape

      The lazy-loaded shape.

    • Pointer

      The value returned when a cyclic reference is detected.

    Hierarchy

    Implements

    Index

    Constructors

    Properties

    The Standard Schema properties.

    annotations: Dict = {}

    The dictionary of shape annotations.

    inputs: readonly unknown[]

    The array of unique input types and values that are accepted by the shape.

    isAsync: boolean

    true if the shape allows only Shape.parseAsync and throws an error if Shape.parse is called, or false if the shape can be used in both sync and async contexts.

    operations: readonly Operation[] = []

    The array of operations that are applied to the shape output.

    pointerProvider: (value: Input<ProvidedShape>, options: ParseOptions) => Pointer

    The provider callback that returns the value that is used instead of a circular reference.

    shapeProvider: () => ProvidedShape

    The provider callback that returns the shape to which LazyShape delegates input handling.

    Methods

    • Clones the shape.

      Returns this

    • Returns input types and literal values that this shape can accept as an input.

      Returns readonly unknown[]

    • Must return true if the shape must be used in async context only, otherwise the shape can be used in both sync and async contexts. Override this method to implement a custom shape.

      Returns boolean

    • Returns true if the shape accepts given input type or value, or false otherwise.

      Parameters

      • input: unknown

        The type or value that must be checked.

      Returns boolean

    • Adds annotations to the shape.

      Parameters

      • annotations: ReadonlyDict

        Annotations to add.

      Returns this

      The clone of the shape with the updated annotations.

    • Returns a sub-shape that describes a value associated with the given property name, or null if there's no such sub-shape.

      Parameters

      • key: unknown

      Returns null | AnyShape

      The sub-shape or null if there's no such key in the shape.

    • Asynchronously parses the value.

      Parameters

      • input: unknown

        The value to parse.

      • Optionaloptions: ParseOptions

        Parsing options.

      Returns Promisify<Pointer | Output<ProvidedShape>>

      The promise that resolves with the value that conforms the output type of the shape, or rejects with a ValidationError if any issues occur during parsing.

    • Synchronously parses the value and returns undefined if parsing fails.

      Parameters

      • input: unknown

        The value to parse.

      Returns undefined | Pointer | Output<ProvidedShape>

      The value that conforms the output type of the shape.

      Error if the shape doesn't support the sync parsing, see Shape.isAsync.

    • Synchronously parses the value and returns the default value if parsing fails.

      Type Parameters

      • DefaultValue

        The default value that is returned if parsing fails.

      Parameters

      • input: unknown

        The value to parse.

      • defaultValue: DefaultValue

        The default value that is returned if parsing fails.

      • Optionaloptions: ParseOptions

        Parsing options.

      Returns Pointer | Output<ProvidedShape> | DefaultValue

      The value that conforms the output type of the shape.

      Error if the shape doesn't support the sync parsing, see Shape.isAsync.

    • Asynchronously parses the value and returns undefined value if parsing fails.

      Parameters

      • input: unknown

        The value to parse.

      Returns Promisify<undefined | Pointer | Output<ProvidedShape>>

      The value that conforms the output type of the shape.

    • Asynchronously parses the value and returns the default value if parsing fails.

      Type Parameters

      • DefaultValue

        The default value that is returned if parsing fails.

      Parameters

      • input: unknown

        The value to parse.

      • defaultValue: DefaultValue

        The default value that is returned if parsing fails.

      • Optionaloptions: ParseOptions

        Parsing options.

      Returns Promisify<Pointer | Output<ProvidedShape> | DefaultValue>

      The value that conforms the output type of the shape.

    Accessors