Creates a new FunctionShape instance.
The shape of the array of arguments.
The return value shape, or null if unconstrained.
The shape of this argument, or null if unconstrained.
Optional options: IssueOptions | MessageThe issue options or the issue message.
Protected _applyThe 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.
Protected _parseParsing options that are used by a wrapper.
Protected _typeReturns issues associated with an invalid input value type.
The dictionary of shape annotations.
Readonly argsThe shape of the array of arguments.
Readonly inputsThe array of unique input types and values that are accepted by the shape.
Readonly istrue 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.
true if input functions are wrapped during parsing to ensure runtime signature type-safety, or false otherwise.
The array of operations that are applied to the shape output.
Readonly returnThe return value shape, or null if unconstrained.
Readonly thisThe shape of this value, or null if unconstrained.
Static Readonly messagesThe mapping from an issue type to a corresponding issue message.
Protected _applySynchronously parses the input.
The shape input to parse.
Parsing options.
The globally unique number that identifies the parsing process.
null if input matches the output, Ok that wraps the output, or an array of captured issues.
Protected _applyAsynchronously parses the input.
The shape input to parse.
Parsing options.
The globally unique number that identifies the parsing process.
null if input matches the output, Ok that wraps the output, or an array of captured issues.
Protected _cloneProtected _getProtected _isAdds an asynchronous operation to the shape.
The callback that asynchronously applies an operation to the shape output value.
Optional options: ParameterizedOperationOptions<Param>The operation options.
The clone of the shape.
Adds an asynchronous operation to the shape.
The callback that asynchronously applies an operation to the shape output value.
Optional options: OperationOptionsThe operation options.
The clone of the shape.
Adds a synchronous operation to the shape.
The callback that synchronously applies an operation to the shape output value.
Optional options: ParameterizedOperationOptions<Param>The operation options.
The clone of the shape.
Adds a synchronous operation to the shape.
The callback that synchronously applies an operation to the shape output value.
Optional options: OperationOptionsThe operation options.
The clone of the shape.
Allows an input value, so it is passed directly to the output.
The allowed value.
The allowed value.
Adds a synchronous operation that alters the output value without changing its type.
If you want to change the base type, consider using Shape.convert.
The callback that alters the shape output. Throw a ValidationError to notify that the alteration cannot be successfully completed.
The operation options.
The clone of the shape.
Adds a synchronous operation that alters the output value without changing its type.
If you want to change the base type, consider using Shape.convert.
The callback that alters the shape output. Throw a ValidationError to notify that the alteration cannot be successfully completed.
Optional options: OperationOptionsThe operation options.
The clone of the shape.
Adds an asynchronous operation that alters the output value without changing its type.
If you want to change the base type, consider using Shape.convertAsync.
The callback that alters the shape output. Throw a ValidationError to notify that the alteration cannot be successfully completed.
The operation options.
The clone of the shape.
Adds an asynchronous operation that alters the output value without changing its type.
If you want to change the base type, consider using Shape.convertAsync.
The callback that alters the shape output. Throw a ValidationError to notify that the alteration cannot be successfully completed.
Optional options: OperationOptionsThe operation options.
The clone of the shape.
Returns a sub-shape that describes a value associated with the given property name, or null if there's no such
sub-shape.
The key for which the sub-shape must be retrieved.
The sub-shape or null if there's no such key in the shape.
Returns a shape that adds a brand to the output type.
A shape with the branded output type.
Returns undefined if parsing fails.
Returns the fallback value if parsing fails.
The fallback value.
The value or a callback that returns a value that is returned if parsing has failed. A callback receives an input value, an array of raised issues, and parsing options.
Adds a synchronous operation that checks that the shape output satisfies a requirement.
The callback must return null or undefined if value is valid, or an issue or an array of issues
if value is invalid. If a callback returns an empty array, it is considered that no issues have occurred.
The callback that checks that a value satisfies a requirement and returns issues if it doesn't.
The operation options.
The clone of the shape.
Adds a synchronous operation that checks that the shape output satisfies a requirement.
The callback must return null or undefined if value is valid, or an issue or an array of issues
if value is invalid. If a callback returns an empty array, it is considered that no issues have occurred.
The callback that checks that a value satisfies a requirement and returns issues if it doesn't.
Optional options: OperationOptionsThe operation options.
The clone of the shape.
Adds an asynchronous operation that checks that the shape output satisfies a requirement.
The callback must return a promise that is resolved with null or undefined if value is valid, or an
issue or an array of issues if value is invalid. If promise resolves with an empty array, it is
considered that no issues have occurred.
The callback that checks that a value satisfies a requirement and returns issues if it doesn't.
The operation options.
The clone of the shape.
Adds an asynchronous operation that checks that the shape output satisfies a requirement.
The callback must return a promise that is resolved with null or undefined if value is valid, or an
issue or an array of issues if value is invalid. If promise resolves with an empty array, it is
considered that no issues have occurred.
The callback that checks that a value satisfies a requirement and returns issues if it doesn't.
Optional options: OperationOptionsThe operation options.
The clone of the shape.
Synchronously converts the output value of the shape.
If you want to don't want to change the base type, consider using Shape.alter.
The callback that converts the input value. Throw a ValidationError to notify that the conversion cannot be successfully completed.
The ConvertShape instance.
Asynchronously converts the output value of the shape.
If you want to don't want to change the base type, consider using Shape.alterAsync.
The callback that converts the input value asynchronously. The returned promise can be rejected with a ValidationError to notify that the conversion cannot be successfully completed.
The ConvertShape instance.
Excludes value from both input and output.
The denied value.
The excluded value.
Optional options: IssueOptions | MessageThe issue options or the issue message.
Creates a function that ensures that fn receives arguments and this value that conform the
FunctionShape.argsShape and the FunctionShape.thisShape respectively, and synchronously
returns the value that conforms the FunctionShape.returnShape.
The function to which signature must be ensured.
The underlying function.
Optional options: ParseOptionsParsing options. By default, options provided to FunctionShape.strict are used.
The wrapper function.
Creates a function that ensures that fn receives arguments and this value that conform the
FunctionShape.argsShape and the FunctionShape.thisShape respectively, and asynchronously
returns the value that conforms the FunctionShape.returnShape.
Use this method if some shapes that describe the function signature are async.
The function to which signature must be ensured.
The underlying function.
Optional options: ParseOptionsParsing options. By default, options provided to FunctionShape.strict are used.
The wrapper function.
Checks that the input doesn't match the shape.
The shape to which the output must not conform.
The shape to which the output must not conform.
Optional options: IssueOptions | MessageThe issue options or the issue message.
Prevents an input and output from being undefined.
Optional options: IssueOptions | MessageThe issue options or the issue message.
Checks that the input doesn't match the shape.
This method works exactly as Shape.exclude at runtime, but it doesn't perform the exclusion on the type level.
The shape to which the output must not conform.
The shape to which the output must not conform.
Optional options: IssueOptions | MessageThe issue options or the issue message.
Replaces null input value with an null output value.
Replaces null input value with a default output value.
The value that is used as the replacement for null.
The value that should be used if an input value is null.
Passes null and undefined input values directly to the output without parsing.
Replaces null and undefined input value with a default output value.
The value that is used as the replacement for undefined and null.
Optional defaultValue: DefaultValueThe value that should be used if an input value is undefined or null.
Replaces undefined input value with an undefined output value.
Replaces undefined input value with a default output value.
The value that is used as the replacement for undefined.
The value that should be used if an input value is undefined.
Synchronously parses the value.
The value to parse.
Optional options: ParseOptionsParsing options.
The value that conforms the output type of the shape.
Error if the shape doesn't support the sync parsing, see Shape.isAsync.
ValidationError if any issues occur during parsing.
Asynchronously parses the value.
The value to parse.
Optional options: ParseOptionsParsing options.
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.
The value to parse.
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.
The value to parse.
The default value that is returned if parsing fails.
Optional options: ApplyOptionsParsing options.
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.
The value to parse.
The value that conforms the output type of the shape.
Asynchronously parses the value and returns the default value if parsing fails.
The value to parse.
The default value that is returned if parsing fails.
Optional options: ApplyOptionsParsing options.
The value that conforms the output type of the shape.
Adds a synchronous operation that refines the shape output type with the narrowing predicate.
The narrowed output value.
The param that is passed to the operation when it is applied.
The predicate that returns true if the value conforms the required type, or false otherwise.
The operation options or the issue message.
The shape with the narrowed output.
Adds a synchronous operation that refines the shape output type with the narrowing predicate.
The narrowed output value.
The predicate that returns true if the value conforms the required type, or false otherwise.
Optional options: Message | RefineOptionsThe operation options or the issue message.
The shape with the narrowed output.
Adds a synchronous operation that checks that the output value conforms the predicate.
The predicate that returns truthy result if the value is valid, or returns falsy result otherwise.
Optional options: Message | ParameterizedRefineOptions<Param>The operation options or the issue message.
The clone of the shape.
Adds a synchronous operation that checks that the output value conforms the predicate.
The predicate that returns truthy result if the value is valid, or returns falsy result otherwise.
Optional options: Message | RefineOptionsThe operation options or the issue message.
The clone of the shape.
Adds an asynchronous operation that checks that the output value conforms the predicate.
The predicate that returns a promise that resolves with a truthy result if the value is valid, or a falsy result otherwise.
Optional options: Message | ParameterizedRefineOptions<Param>The operation options or the issue message.
The clone of the shape.
Adds an asynchronous operation that checks that the output value conforms the predicate.
The predicate that returns a promise that resolves with a truthy result if the value is valid, or a falsy result otherwise.
Optional options: Message | RefineOptionsThe operation options or the issue message.
The clone of the shape.
Replaces an input value with an output value.
The input value to replace.
The output value that is returned if an inputValue is received.
Constrains the function return value with the given shape.
The return value shape.
The return value shape, or null if unconstrained.
The new function shape.
Enables input function wrapping during parsing to ensure runtime signature type-safety. Wrapper ensures that input
function receives arguments and this values that conform FunctionShape.argsShape and
FunctionShape.thisShape respectively, and returns the value that conforms
FunctionShape.returnShape.
Optional options: ParseOptionsOptions that are used by the wrapper. If omitted then default options are applied: no early-return, no type coercion.
The new function shape.
Constrains the type of this inside the function.
The shape of this argument.
The shape of this argument, or null if unconstrained.
The new function shape.
Pipes the output of this shape to the input of another shape.
The output value.
The shape that validates the output if this shape.
The value to parse.
Optional options: ApplyOptionsParsing options.
The Ok instance if parsing has succeeded or Err if parsing has failed.
Error if the shape doesn't support the sync parsing, see Shape.isAsync.
The value to parse.
Optional options: ApplyOptionsParsing options.
The Ok instance if parsing has succeeded or Err if parsing has failed.
true if some shapes that describe the function signature are async, or false otherwise.
The shape of a function.