Class: Prism::PinnedVariableNode

Inherits:
PrismNode
  • Object
show all
Defined in:
lib/prism/node.rb,
ext/prism/api_node.c

Overview

Represents the use of the ‘^` operator for pinning a variable in a pattern matching expression.

foo in ^bar
       ^^^^

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, node_id, location, flags, variable, operator_loc) ⇒ PinnedVariableNode

Initialize a new PinnedVariableNode node.



14512
14513
14514
14515
14516
14517
14518
14519
 
# File 'lib/prism/node.rb', line 14512

def initialize(source, node_id, location, flags, variable, operator_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @variable = variable
  @operator_loc = operator_loc
end

Instance Attribute Details

#variable ⇒ Object (readonly)

attr_reader variable: LocalVariableReadNode | InstanceVariableReadNode | ClassVariableReadNode | GlobalVariableReadNode | BackReferenceReadNode | NumberedReferenceReadNode | ItLocalVariableReadNode | MissingNode



14555
14556
14557
 
# File 'lib/prism/node.rb', line 14555

def variable
  @variable
end

Class Method Details

.type ⇒ Object

Return a symbol representation of this node type. See ‘Node::type`.



14586
14587
14588
 
# File 'lib/prism/node.rb', line 14586

def self.type
  :pinned_variable_node
end

Instance Method Details

#===(other) ⇒ Object

Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.



14592
14593
14594
14595
14596
 
# File 'lib/prism/node.rb', line 14592

def ===(other)
  other.is_a?(PinnedVariableNode) &&
    (variable === other.variable) &&
    (operator_loc.nil? == other.operator_loc.nil?)
end

#accept(visitor) ⇒ Object

def accept: (Visitor visitor) -> void



14522
14523
14524
 
# File 'lib/prism/node.rb', line 14522

def accept(visitor)
  visitor.visit_pinned_variable_node(self)
end

#child_nodes ⇒ Object Also known as: deconstruct

def child_nodes: () -> Array[nil | Node]



14527
14528
14529
 
# File 'lib/prism/node.rb', line 14527

def child_nodes
  [variable]
end

#comment_targets ⇒ Object

def comment_targets: () -> Array[Node | Location]



14537
14538
14539
 
# File 'lib/prism/node.rb', line 14537

def comment_targets
  [variable, operator_loc] #: Array[Prism::node | Location]
end

#compact_child_nodes ⇒ Object

def compact_child_nodes: () -> Array



14532
14533
14534
 
# File 'lib/prism/node.rb', line 14532

def compact_child_nodes
  [variable]
end

#copy(node_id: self.node_id, location: self.location, flags: self.flags, variable: self.variable, operator_loc: self.operator_loc) ⇒ Object

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?variable: LocalVariableReadNode | InstanceVariableReadNode | ClassVariableReadNode | GlobalVariableReadNode | BackReferenceReadNode | NumberedReferenceReadNode | ItLocalVariableReadNode | MissingNode, ?operator_loc: Location) -> PinnedVariableNode



14542
14543
14544
 
# File 'lib/prism/node.rb', line 14542

def copy(node_id: self.node_id, location: self.location, flags: self.flags, variable: self.variable, operator_loc: self.operator_loc)
  PinnedVariableNode.new(source, node_id, location, flags, variable, operator_loc)
end

#deconstruct_keys(keys) ⇒ Object

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, variable: LocalVariableReadNode | InstanceVariableReadNode | ClassVariableReadNode | GlobalVariableReadNode | BackReferenceReadNode | NumberedReferenceReadNode | ItLocalVariableReadNode | MissingNode, operator_loc: Location }



14550
14551
14552
 
# File 'lib/prism/node.rb', line 14550

def deconstruct_keys(keys)
  { node_id: node_id, location: location, variable: variable, operator_loc: operator_loc }
end

#inspect ⇒ Object

def inspect -> String



14576
14577
14578
 
# File 'lib/prism/node.rb', line 14576

def inspect
  InspectVisitor.compose(self)
end

#operator ⇒ Object

def operator: () -> String



14571
14572
14573
 
# File 'lib/prism/node.rb', line 14571

def operator
  operator_loc.slice
end

#operator_loc ⇒ Object

attr_reader operator_loc: Location



14558
14559
14560
14561
14562
 
# File 'lib/prism/node.rb', line 14558

def operator_loc
  location = @operator_loc
  return location if location.is_a?(Location)
  @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

#save_operator_loc(repository) ⇒ Object

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



14566
14567
14568
 
# File 'lib/prism/node.rb', line 14566

def save_operator_loc(repository)
  repository.enter(node_id, :operator_loc)
end

#type ⇒ Object

Return a symbol representation of this node type. See ‘Node#type`.



14581
14582
14583
 
# File 'lib/prism/node.rb', line 14581

def type
  :pinned_variable_node
end