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Class: Prism::AlternationPatternNode

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, PrismNode
Instance Chain:
self, PrismNode
Inherits: PrismNode
  • ::Object
Defined in: lib/prism/node.rb,
ext/prism/api_node.c

Overview

Represents an alternation pattern in pattern matching.

foo => bar | baz
       ^^^^^^^^^

Class Method Summary

Instance Attribute Summary

  • #left readonly

    attr_reader left: Prism.node

  • #right readonly

    attr_reader right: Prism.node

Instance Method Summary

Constructor Details

.new(source, node_id, location, flags, left, right, operator_loc) ⇒ AlternationPatternNode

Initialize a new AlternationPatternNode node.

[ GitHub ] 

  


# File 'lib/prism/node.rb', line 418



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


  







Class Method Details



  

    .type  
  



  

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

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 488



def self.type
  :alternation_pattern_node
end


  







Instance Attribute Details



  

    #left   (readonly)
  



  

    
attr_reader left: Prism.node

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 462



attr_reader :left


  








  

    #right   (readonly)
  



  

    
attr_reader right: Prism.node

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 464



attr_reader :right


  







Instance Method Details



  

    #===(other)  
  



  

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

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 494



def ===(other)
  other.is_a?(AlternationPatternNode) &&
    (left === other.left) &&
    (right === other.right) &&
    (operator_loc.nil? == other.operator_loc.nil?)
end


  








  

    #accept(visitor)  
  



  

    
def accept: (Visitor visitor) -> void

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 429



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


  








  

    #child_nodes  
    Also known as: #deconstruct
  



  

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

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 434



def child_nodes
  [left, right]
end


  








  

    #comment_targets  
  



  

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

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 444



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


  








  

    #compact_child_nodes  
  



  

    
def compact_child_nodes: () -> Array

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 439



def compact_child_nodes
  [left, right]
end


  








  

    #copy(node_id: self.node_id, location: self.location, flags: self.flags, left: self.left, right: self.right, operator_loc: self.operator_loc)  
  



  

    
def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?left: Prism.node, ?right: Prism.node, ?operator_loc: Location) -> AlternationPatternNode

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 449



def copy(node_id: self.node_id, location: self.location, flags: self.flags, left: self.left, right: self.right, operator_loc: self.operator_loc)
  AlternationPatternNode.new(source, node_id, location, flags, left, right, operator_loc)
end


  








  

    #deconstruct  
  



  

    
Alias for #child_nodes.

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 454



alias deconstruct child_nodes


  








  

    #deconstruct_keys(keys)  
  



  

    
def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, left: Prism.node, right: Prism.node, operator_loc: Location }

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 457



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


  








  

    #inspect  
  



  

    
def inspect -> String

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 478



def inspect
  InspectVisitor.compose(self)
end


  








  

    #operator  
  



  

    
def operator: () -> String

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 473



def operator
  operator_loc.slice
end


  








  

    #operator_loc  
  



  

    
attr_reader operator_loc: Location

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 466



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


  








  

    #type  
  



  

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

  



  [ GitHub ]


  

  


# File 'lib/prism/node.rb', line 483



def type
  :alternation_pattern_node
end