class TypeProf::Core::AST::StatementsNode

# File typeprof-0.30.1/lib/typeprof/core/ast/misc.rb, line 4
def initialize(raw_node, lenv, use_result)
  super(raw_node, lenv)
  stmts = raw_node.body
  @stmts = stmts.map.with_index do |n, i|
    if n
      AST.create_node(n, lenv, i == stmts.length - 1 ? use_result : false)
    else
      last = code_range.last
      DummyNilNode.new(TypeProf::CodeRange.new(last, last), lenv)
    end
  end
end

# File typeprof-0.30.1/lib/typeprof/core/ast/misc.rb, line 35
def diff(prev_node)
  if prev_node.is_a?(StatementsNode)
    i = 0
    while i < @stmts.size
      @stmts[i].diff(prev_node.stmts[i])
      if !@stmts[i].prev_node
        j1 = @stmts.size - 1
        j2 = prev_node.stmts.size - 1
        while j1 >= i && j2 >= i
          @stmts[j1].diff(prev_node.stmts[j2])
          if !@stmts[j1].prev_node
            return
          end
          j1 -= 1
          j2 -= 1
        end
        return
      end
      i += 1
    end
    @prev_node = prev_node if i == prev_node.stmts.size
  end
end

# File typeprof-0.30.1/lib/typeprof/core/ast/misc.rb, line 21
def install0(genv)
  ret = nil
  @stmts.each do |stmt|
    ret = stmt ? stmt.install(genv) : nil
  end
  if ret
    ret2 = Vertex.new(self)
    @changes.add_edge(genv, ret, ret2)
    ret2
  else
    Source.new(genv.nil_type)
  end
end

# File typeprof-0.30.1/lib/typeprof/core/ast/misc.rb, line 19
  def subnodes = { stmts: }

  def install0(genv)
    ret = nil
    @stmts.each do |stmt|
      ret = stmt ? stmt.install(genv) : nil
    end
    if ret
      ret2 = Vertex.new(self)
      @changes.add_edge(genv, ret, ret2)
      ret2
    else
      Source.new(genv.nil_type)
    end
  end

  def diff(prev_node)
    if prev_node.is_a?(StatementsNode)
      i = 0
      while i < @stmts.size
        @stmts[i].diff(prev_node.stmts[i])
        if !@stmts[i].prev_node
          j1 = @stmts.size - 1
          j2 = prev_node.stmts.size - 1
          while j1 >= i && j2 >= i
            @stmts[j1].diff(prev_node.stmts[j2])
            if !@stmts[j1].prev_node
              return
            end
            j1 -= 1
            j2 -= 1
          end
          return
        end
        i += 1
      end
      @prev_node = prev_node if i == prev_node.stmts.size
    end
  end
end