DefaultFormalParameter class

A formal parameter with a default value.

There are two kinds of parameters that are both represented by this class: named formal parameters and positional formal parameters.

defaultFormalParameter ::= name ('=' AstNode)?

defaultNamedParameter ::= name (':' AstNode)?

Implemented types

• FormalParameter

Constructors

DefaultFormalParameter(String? _name, AstRuntimeNode? _defaultValue, bool? _isNamed, bool? _isPositional, bool? _isOptional, bool? _isOptionalNamed, bool? _isOptionalPositional)

Properties

defaultValue → AstRuntimeNode?

no setter

hashCode → int

The hash code for this object.

no setter, inherited

isNamed → bool?

Return true if this parameter is a named parameter.

no setter, override

isOptional → bool?

Return true if this parameter is an optional parameter.

no setter, override

isOptionalNamed → bool?

Return true if this parameter is both an optional and named parameter.

no setter, override

isOptionalPositional → bool?

Return true if this parameter is both an optional and positional parameter.

no setter, override

isPositional → bool?

Return true if this parameter is a positional parameter.

no setter, override

name → String?

Return the name of the parameter being declared.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

fromAst(Map? ast) → DefaultFormalParameter?