class Ruby::Prism::LambdaNode

Represents using a lambda literal (not the lambda method call).

->(value) { value * 2 }
^^^^^^^^^^^^^^^^^^^^^^^

Explore code sample

Public Class Methods

new (source, node_id, location, flags, locals, operator_loc, opening_loc, closing_loc, parameters, body)

(Source source, Integer node_id, Location location, Integer flags, Array[Symbol] locals, Location operator_loc, Location opening_loc, Location closing_loc, (BlockParametersNode | NumberedParametersNode | ItParametersNode)? parameters, (StatementsNode | BeginNode)? body) → void

Source

# File lib/ruby/prism/node.rb, line 21118
def initialize(source, node_id, location, flags, locals, operator_loc, opening_loc, closing_loc, parameters, body)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @locals = locals
  @operator_loc = operator_loc
  @opening_loc = opening_loc
  @closing_loc = closing_loc
  @parameters = parameters
  @body = body
end

Initialize a new LambdaNode node.

Public Instance Methods

body → StatementsNode | BeginNode | nil

() → (StatementsNode | BeginNode)?

Source

# File lib/ruby/prism/node.rb, line 21323
def body
  @body
end

Returns the body attribute.

locals → Array[Symbol]

() → Array[Symbol]

Source

# File lib/ruby/prism/node.rb, line 21237
def locals
  @locals
end

Returns the locals attribute.

parameters → BlockParametersNode | NumberedParametersNode | ItParametersNode | nil

() → (BlockParametersNode | NumberedParametersNode | ItParametersNode)?

Source

# File lib/ruby/prism/node.rb, line 21313
def parameters
  @parameters
end

Returns the parameters attribute.

Locations

Public Instance Methods

closing_loc → Location

() → Location

Source

# File lib/ruby/prism/node.rb, line 21292
def closing_loc
  location = @closing_loc
  return location if location.is_a?(Location)
  @closing_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

Returns the Location represented by closing_loc.

opening_loc → Location

() → Location

Source

# File lib/ruby/prism/node.rb, line 21270
def opening_loc
  location = @opening_loc
  return location if location.is_a?(Location)
  @opening_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

Returns the Location represented by opening_loc.

operator_loc → Location

() → Location

Source

# File lib/ruby/prism/node.rb, line 21248
def operator_loc
  location = @operator_loc
  return location if location.is_a?(Location)
  @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

Returns the Location represented by operator_loc.

Node Interface

These methods are present on all subclasses of Node. Read the node interface docs for more information.

Public Class Methods

type ()

() → :lambda_node

Source

# File lib/ruby/prism/node.rb, line 21220
def self.type
  :lambda_node
end

See Node.type.

Public Instance Methods

accept (visitor)

(_Visitor visitor) → untyped

Source

# File lib/ruby/prism/node.rb, line 21145
def accept(visitor)
  visitor.visit_lambda_node(self)
end

See Node.accept.

child_nodes ()

() → Array[node?]

Source

# File lib/ruby/prism/node.rb, line 21152
def child_nodes
  [parameters, body]
end

See Node.child_nodes.

Also aliased as: deconstruct

compact_child_nodes ()

() → Array[node]

Source

# File lib/ruby/prism/node.rb, line 21170
def compact_child_nodes
  compact = [] #: Array[Ruby::Prism::node]
  if (parameters = self.parameters); compact << parameters; end
  if (body = self.body); compact << body; end
  compact
end

See Node.compact_child_nodes.

copy(**fields) → LambdaNode

(?node_id: Integer, ?location: Location, ?flags: Integer, ?locals: Array[Symbol], ?operator_loc: Location, ?opening_loc: Location, ?closing_loc: Location, ?parameters: (BlockParametersNode | NumberedParametersNode | ItParametersNode)?, ?body: (StatementsNode | BeginNode)?) → LambdaNode

Source

# File lib/ruby/prism/node.rb, line 21183
def copy(node_id: self.node_id, location: self.location, flags: self.flags, locals: self.locals, operator_loc: self.operator_loc, opening_loc: self.opening_loc, closing_loc: self.closing_loc, parameters: self.parameters, body: self.body)
  LambdaNode.new(source, node_id, location, flags, locals, operator_loc, opening_loc, closing_loc, parameters, body)
end

Creates a copy of self with the given fields, using self as the template.

deconstruct ()

() → Array[node?]

Alias for: child_nodes

each_child_node () { |parameters| ... }

() → Enumerator[node, void]
() { (node) → void } → void

Source

# File lib/ruby/prism/node.rb, line 21160
def each_child_node(&blk)
  return to_enum(:each_child_node) unless block_given?

  if (parameters = self.parameters); yield parameters; end
  if (body = self.body); yield body; end
end

See Node.each_child_node.

type ()

() → :lambda_node

Source

# File lib/ruby/prism/node.rb, line 21213
def type
  :lambda_node
end

See Node#type.

Repository

Methods related to Relocation.

Public Instance Methods

save_closing_loc (repository)

(_Repository repository) → Relocation::Entry

Source

# File lib/ruby/prism/node.rb, line 21303
def save_closing_loc(repository)
  repository.enter(node_id, :closing_loc)
end

Save the closing_loc location using the given saved source so that it can be retrieved later.

save_opening_loc (repository)

(_Repository repository) → Relocation::Entry

Source

# File lib/ruby/prism/node.rb, line 21281
def save_opening_loc(repository)
  repository.enter(node_id, :opening_loc)
end

Save the opening_loc location using the given saved source so that it can be retrieved later.

save_operator_loc (repository)

(_Repository repository) → Relocation::Entry

Source

# File lib/ruby/prism/node.rb, line 21259
def save_operator_loc(repository)
  repository.enter(node_id, :operator_loc)
end

Save the operator_loc location using the given saved source so that it can be retrieved later.

Slicing

Public Instance Methods

closing → String

() → String

Source

# File lib/ruby/prism/node.rb, line 21355
def closing
  closing_loc.slice
end

Slice the location of closing_loc from the source.

opening → String

() → String

Source

# File lib/ruby/prism/node.rb, line 21345
def opening
  opening_loc.slice
end

Slice the location of opening_loc from the source.

operator → String

() → String

Source

# File lib/ruby/prism/node.rb, line 21335
def operator
  operator_loc.slice
end

Slice the location of operator_loc from the source.