Class: RuboCop::ProcessedSource

Inherits:
Object
  • Object
show all
Defined in:
lib/rubocop/processed_source.rb

Overview

ProcessedSource contains objects which are generated by Parser and other information such as disabled lines for cops. It also provides a convenient way to access source lines.

Constant Summary collapse

STRING_SOURCE_NAME = 
'(string)'.freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, ruby_version, path = nil) ⇒ ProcessedSource

Returns a new instance of ProcessedSource.



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# File 'lib/rubocop/processed_source.rb', line 23

def initialize(source, ruby_version, path = nil)
  # In Ruby 2, source code encoding defaults to UTF-8. We follow the same
  # principle regardless of which Ruby version we're running under.
  # Encoding comments will override this setting.
  unless source.encoding == Encoding::UTF_8
    source.force_encoding(Encoding::UTF_8)
  end

  @raw_source = source
  @path = path
  @diagnostics = []
  @ruby_version = ruby_version

  parse(source, ruby_version)
end

Instance Attribute Details

#ast ⇒ Object (readonly)

Returns the value of attribute ast.



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# File 'lib/rubocop/processed_source.rb', line 13

def ast
  @ast
end

#buffer ⇒ Object (readonly)

Returns the value of attribute buffer.



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# File 'lib/rubocop/processed_source.rb', line 13

def buffer
  @buffer
end

#comments ⇒ Object (readonly)

Returns the value of attribute comments.



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# File 'lib/rubocop/processed_source.rb', line 13

def comments
  @comments
end

#diagnostics ⇒ Object (readonly)

Returns the value of attribute diagnostics.



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# File 'lib/rubocop/processed_source.rb', line 13

def diagnostics
  @diagnostics
end

#parser_error ⇒ Object (readonly)

Returns the value of attribute parser_error.



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# File 'lib/rubocop/processed_source.rb', line 13

def parser_error
  @parser_error
end

#path ⇒ Object (readonly)

Returns the value of attribute path.



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# File 'lib/rubocop/processed_source.rb', line 13

def path
  @path
end

#raw_source ⇒ Object (readonly)

Returns the value of attribute raw_source.



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# File 'lib/rubocop/processed_source.rb', line 13

def raw_source
  @raw_source
end

#ruby_version ⇒ Object (readonly)

Returns the value of attribute ruby_version.



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# File 'lib/rubocop/processed_source.rb', line 13

def ruby_version
  @ruby_version
end

#tokens ⇒ Object (readonly)

Returns the value of attribute tokens.



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# File 'lib/rubocop/processed_source.rb', line 13

def tokens
  @tokens
end

Class Method Details

.from_file(path, ruby_version) ⇒ Object 



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# File 'lib/rubocop/processed_source.rb', line 16

def self.from_file(path, ruby_version)
  file = File.read(path)
  new(file, ruby_version, path)
rescue Errno::ENOENT
  raise RuboCop::Error, "No such file or directory: #{path}"
end

Instance Method Details

#[](*args) ⇒ Object 



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# File 'lib/rubocop/processed_source.rb', line 67

def [](*args)
  lines[*args]
end

#ast_with_comments ⇒ Object 



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# File 'lib/rubocop/processed_source.rb', line 47

def ast_with_comments
  return if !ast || !comments
  @ast_with_comments ||= Parser::Source::Comment.associate(ast, comments)
end

#checksum ⇒ Object

Raw source checksum for tracking infinite loops.



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# File 'lib/rubocop/processed_source.rb', line 77

def checksum
  Digest::MD5.hexdigest(@raw_source)
end

#comment_config ⇒ Object 



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# File 'lib/rubocop/processed_source.rb', line 39

def comment_config
  @comment_config ||= CommentConfig.new(self)
end

#disabled_line_ranges ⇒ Object 



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# File 'lib/rubocop/processed_source.rb', line 43

def disabled_line_ranges
  comment_config.cop_disabled_line_ranges
end

#lines ⇒ Object

Returns the source lines, line break characters removed, excluding a possible __END__ and everything that comes after.



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# File 'lib/rubocop/processed_source.rb', line 54

def lines
  @lines ||= begin
    all_lines = @buffer.source_lines
    last_token_line = tokens.any? ? tokens.last.pos.line : all_lines.size
    result = []
    all_lines.each_with_index do |line, ix|
      break if ix >= last_token_line && line == '__END__'
      result << line
    end
    result
  end
end

#valid_syntax? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubocop/processed_source.rb', line 71

def valid_syntax?
  return false if @parser_error
  @diagnostics.none? { |d| [:error, :fatal].include?(d.level) }
end