Class: HeapProfiler::Parser::Ruby

Inherits:
Object
  • Object
show all
Defined in:
lib/heap_profiler/parser.rb

Instance Method Summary collapse

Instance Method Details

#build_index(path) ⇒ Object 



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# File 'lib/heap_profiler/parser.rb', line 13

def build_index(path)
  require 'json'
  classes_index = {}
  classes_index.default_proc = CLASS_DEFAULT_PROC
  strings_index = {}

  File.open(path).each_line do |line|
    object = JSON.parse(line, symbolize_names: true)
    case object[:type]
    when 'MODULE', 'CLASS'
      address = parse_address(object[:address])

      name = object[:name]
      name ||= if object[:file] && object[:line]
        "<Class #{object[:file]}:#{object[:line]}>"
      end

      if name
        classes_index[address] = name
      end
    when 'STRING'
      next if object[:shared]
      if (value = object[:value])
        strings_index[parse_address(object[:address])] = value
      end
    end
  end

  [classes_index, strings_index]
end

#parse_address(address) ⇒ Object 



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# File 'lib/heap_profiler/parser.rb', line 44

def parse_address(address)
  address.to_i(16)
end