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

class SyntaxTree::PinnedBegin - RDoc Documentation

1. SyntaxTree::
2. PinnedBegin

PinnedBegin represents a pinning a nested statement within pattern matching.

case value
in ^(statement)
end

Node

the expression being pinned

def initialize(statement:, location:)
  @statement = statement
  @location = location
  @comments = []
end

def ===(other)
  other.is_a?(PinnedBegin) && statement === other.statement
end

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

def child_nodes
  [statement]
end

def copy(statement: nil, location: nil)
  node =
    PinnedBegin.new(
      statement: statement || self.statement,
      location: location || self.location
    )

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

def deconstruct_keys(_keys)
  { statement: statement, location: location, comments: comments }
end

def format(q)
  q.group do
    q.text("^(")
    q.nest(1) do
      q.indent do
        q.breakable_empty
        q.format(statement)
      end
      q.breakable_empty
      q.text(")")
    end
  end
end

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