Class: XfOOrth::NosSpec

Inherits:
AbstractWordSpec show all
Defined in:
lib/fOOrth/compiler/word_specs.rb

Overview

A class used to specify the compile of dyadic operators.

Instance Attribute Summary

Attributes inherited from AbstractWordSpec

#builds, #does, #tags

Instance Method Summary collapse

Methods inherited from AbstractWordSpec

#has_tag?, #initialize

Constructor Details

This class inherits a constructor from XfOOrth::AbstractWordSpec

Instance Method Details

#build_builds_string(_name, symbol) ⇒ Object

Generate the Ruby code for this dyadic operator.
Parameters:

  • _name - The string that maps to the symbol. Unused

  • symbol - The symbol that the name maps to.



89
90
91
 
# File 'lib/fOOrth/compiler/word_specs.rb', line 89

def build_builds_string(_name, symbol)
  @builds = "vm.swap_pop.#{symbol}(vm); "
end

#get_stub_action(name, symbol) ⇒ Object

Get the default action if none is specified.



94
95
96
97
98
99
100
101
102
 
# File 'lib/fOOrth/compiler/word_specs.rb', line 94

def get_stub_action(name, symbol)
  lambda do |vm|
    #NOS methods can leave an extra bit of mess on the stack which must
    #be cleaned up at this time or it will cause further problems.
    vm.data_stack.pop

    error "F20: A #{self.foorth_name} does not understand #{name} (#{symbol.inspect})."
  end
end