Class: Rubrowser::Parser::File

Inherits:
Object
  • Object
show all
Defined in:
lib/rubrowser/parser/file.rb,
lib/rubrowser/parser/file/builder.rb

Defined Under Namespace

Classes: Builder

Constant Summary collapse

FILE_SIZE_LIMIT = 
2 * 1024 * 1024

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ File

Returns a new instance of File.



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# File 'lib/rubrowser/parser/file.rb', line 14

def initialize(file)
  @file = ::File.absolute_path(file)
  @definitions = []
  @relations = []
end

Instance Attribute Details

#definitions ⇒ Object (readonly)

Returns the value of attribute definitions.



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# File 'lib/rubrowser/parser/file.rb', line 12

def definitions
  @definitions
end

#file ⇒ Object (readonly)

Returns the value of attribute file.



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# File 'lib/rubrowser/parser/file.rb', line 12

def file
  @file
end

#relations ⇒ Object (readonly)

Returns the value of attribute relations.



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# File 'lib/rubrowser/parser/file.rb', line 12

def relations
  @relations
end

Instance Method Details

#constants_from_file ⇒ Object 



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# File 'lib/rubrowser/parser/file.rb', line 31

def constants_from_file
  contents = ::File.read(file)

  buffer = ::Parser::Source::Buffer.new(file, 1)
  buffer.source = contents.force_encoding(Encoding::UTF_8)

  ast = parser.parse(buffer)
  parse_block(ast)
end

#parse ⇒ Object 



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# File 'lib/rubrowser/parser/file.rb', line 20

def parse
  return unless valid_file?(file)

  constants = constants_from_file

  @definitions = constants[:definitions]
  @relations = constants[:relations]
rescue ::Parser::SyntaxError
  warn "SyntaxError in #{file}"
end

#parser ⇒ Object 



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# File 'lib/rubrowser/parser/file.rb', line 41

def parser
  parser = ::Parser::CurrentRuby.new(Builder.new)
  parser.diagnostics.ignore_warnings = true
  parser.diagnostics.all_errors_are_fatal = false
  parser
end

#valid_file?(file) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rubrowser/parser/file.rb', line 48

def valid_file?(file)
  !::File.symlink?(file) &&
    ::File.file?(file) &&
    ::File.size(file) <= FILE_SIZE_LIMIT
end