FallbackConverter<T> class

A converter that successively tries a list of converters until one succeeds.

Given three converters a, b and c, a FallbackConverter will first try to convert the input using a, then, if a failed, using b, then, if b failed, using c. If all of a, b and c fail, then the FallbackConverter will also fail. If at least one of a, b or c succeed, the FallbackConverter will return the result of that conversion.

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Implemented types

Constructors

FallbackConverter(Iterable<Converter<T>> converters, {Iterable<CommandOptionChoiceBuilder>? choices, CommandOptionType? type, void processOptionCallback(CommandOptionBuilder)?, FutureOr<Iterable<CommandOptionChoiceBuilder>?> autocompleteCallback(AutocompleteContext)?, FutureOr<SelectMenuOptionBuilder> toSelectMenuOption(T)?, FutureOr<ButtonBuilder> toButton(T)?})
Create a new FallbackConverter.
const

Properties

autocompleteCallback → (FutureOr<Iterable<CommandOptionChoiceBuilder>?> Function(AutocompleteContext)?)
A function called to provide autocompletion for arguments of this type.
final
choices → Iterable<CommandOptionChoiceBuilder>?
The choices for this type.
no setteroverride
convert → FutureOr<T?> Function(StringView view, ContextData context)
The function called to perform the conversion.
no setteroverride
converters → Iterable<Converter<T>>
The converters this FallbackConverter will attempt to use.
final
hashCode → int
The hash code for this object.
no setterinherited
output → RuntimeType<T>
The type that this converter parses.
no setteroverride
processOptionCallback → (void Function(CommandOptionBuilder)?)
A callback called with the CommandOptionBuilder created for an option using this converter.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
toButton → (FutureOr<ButtonBuilder> Function(T)?)
A function called to provide ButtonBuilders that can be used to represent an element converted by this converter.
no setteroverride
toSelectMenuOption → (FutureOr<SelectMenuOptionBuilder> Function(T)?)
A function called to provide SelectMenuOptionBuilders that can be used to represent an element converted by this converter.
no setteroverride
type → CommandOptionType
The Discord Slash Command Argument Type of the type that this converter parses.
no setteroverride

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited