Class: BitClust::Subcommands::ListCommand

Inherits:
BitClust::Subcommand show all
Defined in:
lib/bitclust/subcommands/list_command.rb

Instance Method Summary collapse

Methods inherited from BitClust::Subcommand

#align_progress_bar_title, #error, #help, #needs_database?, #option_error, #srcdir_root

Constructor Details

#initialize ⇒ ListCommand

Returns a new instance of ListCommand.



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# File 'lib/bitclust/subcommands/list_command.rb', line 15

def initialize
  super
  @mode = nil
  @parser.banner = "Usage: #{File.basename($0, '.*')} list (--library|--class|--method|--function)"
  @parser.on('--library', 'List libraries.') {
    @mode = :library
  }
  @parser.on('--class', 'List classes.') {
    @mode = :class
  }
  @parser.on('--method', 'List methods.') {
    @mode = :method
  }
  @parser.on('--function', 'List functions (C API).') {
    @mode = :function
  }
end

Instance Method Details

#exec(argv, options) ⇒ Object 



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# File 'lib/bitclust/subcommands/list_command.rb', line 40

def exec(argv, options)
  super
  case @mode
  when :library
    db = @db
    db.is_a?(MethodDatabase) or raise "invalid database given. Use without --capi option"
    db.libraries.map {|lib| lib.name }.sort.each do |name|
      puts name
    end
  when :class
    db = @db
    db.is_a?(MethodDatabase) or raise "invalid database given. Use without --capi option"
    db.classes.map {|c| c.name }.sort.each do |name|
      puts name
    end
  when :method
    db = @db
    db.is_a?(MethodDatabase) or raise "invalid database given. Use without --capi option"
    db.classes.sort_by {|c| c.name }.each do |c|
      c.entries.sort_by {|m| m.id }.each do |m|
        puts m.label
      end
    end
  when :function
    db = @db
    db.is_a?(FunctionDatabase) or raise "invalid database given. Use with --capi option"
    db.functions.sort_by {|f| f.name }.each do |f|
      puts f.name
    end
  else
    raise "must not happen: @mode=#{@mode.inspect}"
  end
end

#parse(argv) ⇒ Object 



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# File 'lib/bitclust/subcommands/list_command.rb', line 33

def parse(argv)
  super
  unless @mode
    error 'one of (--library|--class|--method|--function) is required'
  end
end