Class: MxxRu::Cpp::Analyzer::CppAnalyzer

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/mxx_ru/cpp/analyzer.rb

Constant Summary collapse

@@include_regex = 
Regexp.new(
'^[ \t]*#[ \t]*include[ \t]*(<|")([^>"]+)(>|")' )

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CppAnalyzer

Returns a new instance of CppAnalyzer.



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# File 'lib/mxx_ru/cpp/analyzer.rb', line 69

def initialize
  # Key is a string, value - SourceFile.
  @sources = Hash.new
  # A list of folders to look header files in.
  @include_paths = Array.new
end

Instance Method Details

#add_include_paths(a_paths) ⇒ Object

Add paths to header files.

a_paths

Should be Array of Strings.



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# File 'lib/mxx_ru/cpp/analyzer.rb', line 89

def add_include_paths( a_paths )
  a_paths.each { |p|
      if !@include_paths.include?( p )
        @include_paths << p
      end
    }
end

#add_sources(a_sources) ⇒ Object

Add files to view.

a_sources

Should be Array of Strings.



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# File 'lib/mxx_ru/cpp/analyzer.rb', line 78

def add_sources( a_sources )

  a_sources.each { |s|
      if !@sources.key?( s )
        @sources[ s ] = SourceFile.new
      end
    }
end

#analyze(a_encoding) ⇒ Object

Perform file analisys.



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# File 'lib/mxx_ru/cpp/analyzer.rb', line 98

def analyze ( a_encoding )
  # Current list of keys should be taken to avoid 
  # dynamic growth of file list.
  # Repeat iterations until source file list changes stop      
  old_size = 0
  files = @sources.keys
  while old_size != files.size
    files.each { |file_name|
        current = @sources[ file_name ]
        if !current.is_processed
          process_file( file_name, current, a_encoding )
        end
      }

    old_size = files.size
    files = @sources.keys
  end
end

#get_depends_for(a_file_name) ⇒ Object

Get full dependencies list for a file. Returns Array of Strings.



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# File 'lib/mxx_ru/cpp/analyzer.rb', line 119

def get_depends_for( a_file_name )
  result_hash = Hash.new
  file_obj = @sources[ a_file_name ]
  if nil != file_obj
    to_review = file_obj.depends
    to_review_next = Hash.new

    while to_review.size != to_review_next.size
      to_review.each_key { |f|
          if !result_hash.key?( f )
            result_hash[ f ] = nil
            to_review_next_obj = @sources[ f ]
            to_review_next_obj.depends.each_key { |k|
                to_review_next[ k ] = nil }
          end
        }

      to_review = to_review_next
      to_review_next = Hash.new
    end
  end

  return result_hash.keys
end