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

class SyntaxTree::BodyStmt - RDoc Documentation

1. SyntaxTree::
2. BodyStmt

bodystmt can’t actually determine its bounds appropriately because it doesn’t necessarily know where it started. So the parent node needs to report back down into this one where it goes.

nil | Statements

the optional set of statements inside the else clause

nil | Kw

the optional else keyword

nil | Ensure

the optional ensure clause

nil | Rescue

the optional rescue chain attached to the begin clause

Statements

the list of statements inside the begin clause

def initialize(
  statements:,
  rescue_clause:,
  else_keyword:,
  else_clause:,
  ensure_clause:,
  location:
)
  @statements = statements
  @rescue_clause = rescue_clause
  @else_keyword = else_keyword
  @else_clause = else_clause
  @ensure_clause = ensure_clause
  @location = location
  @comments = []
end

def ===(other)
  other.is_a?(BodyStmt) && statements === other.statements &&
    rescue_clause === other.rescue_clause &&
    else_keyword === other.else_keyword &&
    else_clause === other.else_clause &&
    ensure_clause === other.ensure_clause
end

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

def bind(parser, start_char, start_column, end_char, end_column)
  rescue_clause = self.rescue_clause

  @location =
    Location.new(
      start_line: location.start_line,
      start_char: start_char,
      start_column: start_column,
      end_line: location.end_line,
      end_char: end_char,
      end_column: end_column
    )

  
  consequent = rescue_clause || else_clause || ensure_clause
  statements.bind(
    parser,
    start_char,
    start_column,
    consequent ? consequent.location.start_char : end_char,
    consequent ? consequent.location.start_column : end_column
  )

  
  if rescue_clause
    consequent = else_clause || ensure_clause

    rescue_clause.bind_end(
      consequent ? consequent.location.start_char : end_char,
      consequent ? consequent.location.start_column : end_column
    )
  end
end

def child_nodes
  [statements, rescue_clause, else_keyword, else_clause, ensure_clause]
end

def copy(
  statements: nil,
  rescue_clause: nil,
  else_keyword: nil,
  else_clause: nil,
  ensure_clause: nil,
  location: nil
)
  node =
    BodyStmt.new(
      statements: statements || self.statements,
      rescue_clause: rescue_clause || self.rescue_clause,
      else_keyword: else_keyword || self.else_keyword,
      else_clause: else_clause || self.else_clause,
      ensure_clause: ensure_clause || self.ensure_clause,
      location: location || self.location
    )

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

def deconstruct_keys(_keys)
  {
    statements: statements,
    rescue_clause: rescue_clause,
    else_keyword: else_keyword,
    else_clause: else_clause,
    ensure_clause: ensure_clause,
    location: location,
    comments: comments
  }
end

def empty?
  statements.empty? && !rescue_clause && !else_clause && !ensure_clause
end

def format(q)
  q.group do
    q.format(statements) unless statements.empty?

    if rescue_clause
      q.nest(-2) do
        q.breakable_force
        q.format(rescue_clause)
      end
    end

    if else_clause
      q.nest(-2) do
        q.breakable_force
        q.format(else_keyword)
      end

      unless else_clause.empty?
        q.breakable_force
        q.format(else_clause)
      end
    end

    if ensure_clause
      q.nest(-2) do
        q.breakable_force
        q.format(ensure_clause)
      end
    end
  end
end

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