Class: FunctionGraph

Inherits:
Graph
  • Object
show all
Defined in:
lib/codegraph.rb

Direct Known Subclasses

EightFunctionGraph, SingleFunctionGraph

Constant Summary collapse

@@workDir =

internal database for former scans

ENV['HOME'] + '/.codegraph'
@@funxDBfile = 
@@workDir+'/funxDB.json'
@@funxDB = 
File.exist?(@@funxDBfile) ? JSON.parse(File.open(@@funxDBfile).read) : Hash.new
@@lock = 
Mutex.new

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Graph

#empty?

Constructor Details

#initialize(config) ⇒ FunctionGraph

Returns a new instance of FunctionGraph.



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# File 'lib/codegraph.rb', line 131

def initialize(config)
  super(self.class.to_s)
  @config  = config 

  @debug   = @config[:debug]

  @@matchBeforFuncName = @config[:matchBefor].nil? ? '[^A-z0-9_]\s*': @config[:matchBefor]
  @@matchAfterFuncName = @config[:matchAfter].nil? ? '( *\(| |$)'   : @config[:matchAfter]

  @adds     = @config[:adds] || []
  @excludes = @config[:excludes] || []

  @parser   = CodeParser.new
  @parser.read(*@config[:filelist])
  @funx     = @parser.funx
end

Instance Attribute Details

#adds ⇒ Object

Returns the value of attribute adds.



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# File 'lib/codegraph.rb', line 123

def adds
  @adds
end

#debug ⇒ Object

Returns the value of attribute debug.



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# File 'lib/codegraph.rb', line 123

def debug
  @debug
end

#excludes ⇒ Object

Returns the value of attribute excludes.



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# File 'lib/codegraph.rb', line 123

def excludes
  @excludes
end

#funx ⇒ Object

Returns the value of attribute funx.



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# File 'lib/codegraph.rb', line 123

def funx
  @funx
end

Instance Method Details

#scan ⇒ Object 



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# File 'lib/codegraph.rb', line 148

def scan
  jobqueue = JobQueue.new
  # scan functions fo all other function names
  names = @parser.funx.keys + @adds - @excludes
  @parser.funx.each_pair {|name,body|
    next unless names.include?(name)
    jobqueue.push {
      puts "Add func: #{name}" if @debug
      # Check if this body is in the funx DB
      bodyCk = Digest::SHA256.hexdigest(body)
      if @@funxDB.has_key?(bodyCk) and @@funxDB[name] == body
        edges = @@funxDB[bodyCk]
        edges.each {|edge| self.edge(*edge)}
      else
        edges = []
        self.node(name)
        (names - [name]).each { |func|
          if/#@@matchBeforFuncName#{Regexp.escape(func)}#@@matchAfterFuncName/.match(body)
            edge = ["#{name}","#{func}"]
            self.edge(*edge)
            edges << edge
          end
        }
        @@lock.synchronize {
          @@funxDB[bodyCk] = edges
          @@funxDB[name]   = body
        }
      end
    }
  }
  jobqueue.run

  updateFunxDB
end

#showBody(name) ⇒ Object 



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# File 'lib/codegraph.rb', line 183

def showBody(name)
  @funx[name]
end