Module: RplLang::Words::Store

Includes:
Types
Included in:
Rpl
Defined in:
lib/rpl/words/store.rb

Instance Method Summary collapse

Methods included from Types

new_object

Instance Method Details

#populate_dictionary ⇒ Object 



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# File 'lib/rpl/words/store.rb', line 8

def populate_dictionary
  super

  category = 'Store'

  @dictionary.add_word( ['▶', 'sto'],
                        category,
                        '( content name -- ) store to variable',
                        proc do
                          args = stack_extract( [[RplName], :any] )

                          @dictionary.add_var( args[0].value,
                                               args[1] )
                        end )

  @dictionary.add_word( ['rcl'],
                        category,
                        '( name -- … ) push content of variable name onto stack',
                        proc do
                          args = stack_extract( [[RplName]] )

                          content = @dictionary.lookup( args[0].value )

                          @stack << content unless content.nil?
                        end )

  @dictionary.add_word( ['purge'],
                        category,
                        '( name -- ) delete variable',
                        proc do
                          args = stack_extract( [[RplName]] )

                          @dictionary.remove_var( args[0].value )
                        end )

  @dictionary.add_word( ['vars'],
                        category,
                        '( -- […] ) list variables',
                        proc do
                          @stack << Types.new_object( RplList, (@dictionary.vars.keys + @dictionary.local_vars_layers.reduce([]) { |memo, layer| memo + layer.keys })
                                                                 .map { |name| Types.new_object( RplName, name ) } )
                        end )

  @dictionary.add_word( ['clusr'],
                        category,
                        '( -- ) delete all variables',
                        proc do
                          @dictionary.remove_all_vars
                        end )

  @dictionary.add_word( ['sto+'],
                        category,
                        '( a n -- ) add content to variable\'s value',
                        Types.new_object( RplProgram, '« swap over rcl + swap sto »' ) )

  @dictionary.add_word( ['sto-'],
                        category,
                        '( a n -- ) subtract content to variable\'s value',
                        Types.new_object( RplProgram, '« swap over rcl swap - swap sto »' ) )

  @dictionary.add_word( ['sto×', 'sto*'],
                        category,
                        '( a n -- ) multiply content of variable\'s value',
                        Types.new_object( RplProgram, '« swap over rcl * swap sto »' ) )

  @dictionary.add_word( ['sto÷', 'sto/'],
                        category,
                        '( a n -- ) divide content of variable\'s value',
                        Types.new_object( RplProgram, '« swap over rcl swap / swap sto »' ) )

  @dictionary.add_word( ['sneg'],
                        category,
                        '( a n -- ) negate content of variable\'s value',
                        Types.new_object( RplProgram, '« dup rcl chs swap sto »' ) )

  @dictionary.add_word( ['sinv'],
                        category,
                        '( a n -- ) invert content of variable\'s value',
                        Types.new_object( RplProgram, '« dup rcl inv swap sto »' ) )
end