Class: Daedalus::DependencyGrapher

Inherits:
Object
  • Object
show all
Defined in:
lib/daedalus/dependency_grapher.rb

Defined Under Namespace

Modules: Conditional, Container Classes: Define, Else, ElseIf, ExpressionEvaluator, FileParser, If, IfDefined, IfNotDefined, IncludedFile, Node, ParseError, SourceFile, Undefine

Constant Summary collapse

DEV_NULL = 
RUBY_PLATFORM =~ /mingw|mswin/ ? 'NUL' : '/dev/null'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(cc, files, directories = [], defines = nil) ⇒ DependencyGrapher

Returns a new instance of DependencyGrapher.



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# File 'lib/daedalus/dependency_grapher.rb', line 406

def initialize(cc, files, directories=[], defines=nil)
  @cc = cc
  @file_names = files
  @directories = directories
  @defines = defines

  @system_defines = {}
  @sources = []
end

Instance Attribute Details

#defines ⇒ Object

Returns the value of attribute defines.



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# File 'lib/daedalus/dependency_grapher.rb', line 403

def defines
  @defines
end

#directories ⇒ Object

Returns the value of attribute directories.



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# File 'lib/daedalus/dependency_grapher.rb', line 403

def directories
  @directories
end

#file_names ⇒ Object

Returns the value of attribute file_names.



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# File 'lib/daedalus/dependency_grapher.rb', line 403

def file_names
  @file_names
end

#sources ⇒ Object (readonly)

Returns the value of attribute sources.



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# File 'lib/daedalus/dependency_grapher.rb', line 404

def sources
  @sources
end

#system_defines ⇒ Object

Returns the value of attribute system_defines.



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# File 'lib/daedalus/dependency_grapher.rb', line 403

def system_defines
  @system_defines
end

Instance Method Details

#get_system_defines ⇒ Object 



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# File 'lib/daedalus/dependency_grapher.rb', line 416

def get_system_defines
  lines = `#{@cc} -dM -E #{@defines} - < #{DEV_NULL}`.split("\n")

  source = SourceFile.new "sytem_defines", self
  parser = FileParser.new source, @directories
  parser.parse lines

  source.execute @system_defines
end

#print_dependencies(out, max = 72) ⇒ Object 



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# File 'lib/daedalus/dependency_grapher.rb', line 441

def print_dependencies(out, max=72)
  @sources.each do |source|
    source.print_dependencies out, max
  end
end

#process ⇒ Object 



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# File 'lib/daedalus/dependency_grapher.rb', line 426

def process
  get_system_defines

  @file_names.each do |name|
    source = SourceFile.new name, self
    parser = FileParser.new source, @directories

    parser.parse_file name
    source.execute @system_defines.dup
    source.collect_dependencies

    @sources << source
  end
end