FormalParameter class abstract

A node representing a parameter to a function.

formalParameter ::= NormalFormalParameter | DefaultFormalParameter

Clients may not extend, implement or mix-in this class.

Implemented types
Implementers

Constructors

FormalParameter()

Properties

beginToken → Token
Return the first token included in this node's source range.
no setterinherited
childEntities → Iterable<SyntacticEntity>
Return an iterator that can be used to iterate through all the entities (either AST nodes or tokens) that make up the contents of this node, including doc comments but excluding other comments.
no setterinherited
covariantKeyword → Token?
The 'covariant' keyword, or null if the keyword was not used.
no setter
declaredElement → ParameterElement?
Return the element representing this parameter, or null if this parameter has not been resolved.
no setter
end → int
Return the offset of the character immediately following the last character of this node's source range.
no setterinherited
endToken → Token
Return the last token included in this node's source range.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
identifier → SimpleIdentifier?
Return the name of the parameter being declared, or null if the parameter doesn't have a name, such as when it's part of a generic function type.
no setter
isConst → bool
Return true if this parameter was declared with the 'const' modifier.
no setter
isFinal → bool
Return true if this parameter was declared with the 'final' modifier.
no setter
isNamed → bool
Return true if this parameter is a named parameter.
no setter
isOptional → bool
Return true if this parameter is an optional parameter.
no setter
isOptionalNamed → bool
Return true if this parameter is both an optional and named parameter.
no setter
isOptionalPositional → bool
Return true if this parameter is both an optional and positional parameter.
no setter
isPositional → bool
Return true if this parameter is a positional parameter.
no setter
isRequired → bool
Return true if this parameter is a required parameter.
no setter
isRequiredNamed → bool
Return true if this parameter is both a required and named parameter.
no setter
isRequiredPositional → bool
Return true if this parameter is both a required and positional parameter.
no setter
isSynthetic → bool
Return true if this node is a synthetic node.
no setterinherited
length → int
Return the number of characters in the syntactic entity's source range.
no setterinherited
metadata → NodeList<Annotation>
Return the annotations associated with this parameter.
no setter
offset → int
Return the offset from the beginning of the file to the first character in the syntactic entity.
no setterinherited
parent → AstNode?
Return this node's parent node, or null if this node is the root of an AST structure.
no setterinherited
requiredKeyword → Token?
The 'required' keyword, or null if the keyword was not used.
no setter
root → AstNode
Return the node at the root of this node's AST structure.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

accept<E>(AstVisitor<E> visitor) → E?
Use the given visitor to visit this node.
inherited
findPrevious(Token target) → Token?
Return the token before target or null if it cannot be found.
inherited
getProperty<E>(String name) → E?
Return the value of the property with the given name, or null if this node does not have a property with the given name.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
setProperty(String name, Object? value) → void
Set the value of the property with the given name to the given value. If the value is null, the property will effectively be removed.
inherited
thisOrAncestorMatching<E extends AstNode>(Predicate<AstNode> predicate) → E?
Return either this node or the most immediate ancestor of this node for which the predicate returns true, or null if there is no such node.
inherited
thisOrAncestorOfType<E extends AstNode>() → E?
Return either this node or the most immediate ancestor of this node that has the given type, or null if there is no such node.
inherited
toSource() → String
Return a textual description of this node in a form approximating valid source.
inherited
toString() → String
A string representation of this object.
inherited
visitChildren(AstVisitor visitor) → void
Use the given visitor to visit all of the children of this node.
inherited

Operators

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