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Showing content from https://ruby-syntax-tree.github.io/syntax_tree/SyntaxTree/Elsif.html below:

class SyntaxTree::Elsif - RDoc Documentation

1. SyntaxTree::
2. Elsif

Elsif represents another clause in an if or unless chain.

if variable
elsif other_variable
end

nil | Elsif | Else

the next clause in the chain

Node

the expression to be checked

def initialize(predicate:, statements:, consequent:, location:)
  @predicate = predicate
  @statements = statements
  @consequent = consequent
  @location = location
  @comments = []
end

def ===(other)
  other.is_a?(Elsif) && predicate === other.predicate &&
    statements === other.statements && consequent === other.consequent
end

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

def child_nodes
  [predicate, statements, consequent]
end

def copy(predicate: nil, statements: nil, consequent: nil, location: nil)
  node =
    Elsif.new(
      predicate: predicate || self.predicate,
      statements: statements || self.statements,
      consequent: consequent || self.consequent,
      location: location || self.location
    )

  node.comments.concat(comments.map(&:copy))
  node
end

def deconstruct_keys(_keys)
  {
    predicate: predicate,
    statements: statements,
    consequent: consequent,
    location: location,
    comments: comments
  }
end

def format(q)
  q.group do
    q.group do
      q.text("elsif ")
      q.nest("elsif".length - 1) { q.format(predicate) }
    end

    unless statements.empty?
      q.indent do
        q.breakable_force
        q.format(statements)
      end
    end

    if consequent
      q.group do
        q.breakable_force
        q.format(consequent)
      end
    end
  end
end

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