Class PipeShape<InputShape, OutputShape>

The shape that parses the output of the input shape with the output shape.

Type Parameters

  • InputShape extends AnyShape

    The input shape.

  • OutputShape extends AnyShape

    The output shape.

Hierarchy (view full)

Implements

Constructors

Properties

_applyOperations: ApplyOperationsCallback

The callback that applies Shape.operations to the shape output value.

This method returns a promise if there are async Shape.operations.

If the shape overrides only Shape._apply and doesn't override Shape._applyAsync then it's only safe to call this method as the last statement in Shape._apply. Otherwise, it may return an unexpected promise.

If the shape overrides both Shape._apply and Shape._applyAsync then this method would always synchronously return a Result inside Shape._apply.

annotations: Dict<any> = {}

The dictionary of shape annotations.

inputShape: InputShape

The input shape.

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.

outputShape: OutputShape

The output shape.

Methods

  • 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<any>

      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

      The key for which the sub-shape must be retrieved.

    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.

    • Optional options: ParseOptions

      Parsing options.

    Returns Promisify<Output<OutputShape>>

    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.

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

    Parameters

    • input: unknown

      The value to parse.

    Returns Promisify<undefined | Output<OutputShape>>

    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.

    • Optional options: ParseOptions

      Parsing options.

    Returns Promisify<Output<OutputShape> | DefaultValue>

    The value that conforms the output type of the shape.