Class: Prism::ElseNode

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

Overview

Represents an else clause in a case, if, or unless statement.

if a then b else c end
            ^^^^^^^^^^

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, node_id, location, flags, else_keyword_loc, statements, end_keyword_loc) ⇒ ElseNode

Initialize a new ElseNode node.



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# File 'lib/prism/node.rb', line 6719

def initialize(source, node_id, location, flags, else_keyword_loc, statements, end_keyword_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @else_keyword_loc = else_keyword_loc
  @statements = statements
  @end_keyword_loc = end_keyword_loc
end

Instance Attribute Details

#statements ⇒ Object (readonly)

attr_reader statements: StatementsNode?



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# File 'lib/prism/node.rb', line 6785

def statements
  @statements
end

Class Method Details

.type ⇒ Object

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



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# File 'lib/prism/node.rb', line 6827

def self.type
  :else_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.



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# File 'lib/prism/node.rb', line 6833

def ===(other)
  other.is_a?(ElseNode) &&
    (else_keyword_loc.nil? == other.else_keyword_loc.nil?) &&
    (statements === other.statements) &&
    (end_keyword_loc.nil? == other.end_keyword_loc.nil?)
end

#accept(visitor) ⇒ Object

def accept: (Visitor visitor) -> void



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# File 'lib/prism/node.rb', line 6730

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

#child_nodes ⇒ Object Also known as: deconstruct

def child_nodes: () -> Array



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# File 'lib/prism/node.rb', line 6735

def child_nodes
  [statements]
end

#comment_targets ⇒ Object

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



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# File 'lib/prism/node.rb', line 6754

def comment_targets
  [else_keyword_loc, *statements, *end_keyword_loc] #: Array[Prism::node | Location]
end

#compact_child_nodes ⇒ Object

def compact_child_nodes: () -> Array



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# File 'lib/prism/node.rb', line 6747

def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << statements if statements
  compact
end

#copy(node_id: self.node_id, location: self.location, flags: self.flags, else_keyword_loc: self.else_keyword_loc, statements: self.statements, end_keyword_loc: self.end_keyword_loc) ⇒ Object

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?else_keyword_loc: Location, ?statements: StatementsNode?, ?end_keyword_loc: Location?) -> ElseNode



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# File 'lib/prism/node.rb', line 6759

def copy(node_id: self.node_id, location: self.location, flags: self.flags, else_keyword_loc: self.else_keyword_loc, statements: self.statements, end_keyword_loc: self.end_keyword_loc)
  ElseNode.new(source, node_id, location, flags, else_keyword_loc, statements, end_keyword_loc)
end

#deconstruct_keys(keys) ⇒ Object

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, else_keyword_loc: Location, statements: StatementsNode?, end_keyword_loc: Location? }



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# File 'lib/prism/node.rb', line 6767

def deconstruct_keys(keys)
  { node_id: node_id, location: location, else_keyword_loc: else_keyword_loc, statements: statements, end_keyword_loc: end_keyword_loc }
end

#each_child_node {|statements| ... } ⇒ Object

def each_child_node: () { (Prism::node) -> void } -> void | () -> Enumerator

Yields:



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# File 'lib/prism/node.rb', line 6740

def each_child_node
  return to_enum(:each_child_node) unless block_given?

  yield statements if statements
end

#else_keyword ⇒ Object

def else_keyword: () -> String



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# File 'lib/prism/node.rb', line 6807

def else_keyword
  else_keyword_loc.slice
end

#else_keyword_loc ⇒ Object

attr_reader else_keyword_loc: Location



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# File 'lib/prism/node.rb', line 6772

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

#end_keyword ⇒ Object

def end_keyword: () -> String?



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# File 'lib/prism/node.rb', line 6812

def end_keyword
  end_keyword_loc&.slice
end

#end_keyword_loc ⇒ Object

attr_reader end_keyword_loc: Location?



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# File 'lib/prism/node.rb', line 6788

def end_keyword_loc
  location = @end_keyword_loc
  case location
  when nil
    nil
  when Location
    location
  else
    @end_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
  end
end

#inspect ⇒ Object

def inspect -> String



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# File 'lib/prism/node.rb', line 6817

def inspect
  InspectVisitor.compose(self)
end

#save_else_keyword_loc(repository) ⇒ Object

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



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# File 'lib/prism/node.rb', line 6780

def save_else_keyword_loc(repository)
  repository.enter(node_id, :else_keyword_loc)
end

#save_end_keyword_loc(repository) ⇒ Object

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



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# File 'lib/prism/node.rb', line 6802

def save_end_keyword_loc(repository)
  repository.enter(node_id, :end_keyword_loc) unless @end_keyword_loc.nil?
end

#type ⇒ Object

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



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# File 'lib/prism/node.rb', line 6822

def type
  :else_node
end