Class: Lab42::Curry::ArgCompiler::Positionals

Inherits:
Object
  • Object
show all
Defined in:
lib/lab42/curry/arg_compiler/positionals.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#ct_pos ⇒ Object (readonly)

Returns the value of attribute ct_pos.



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 15

def ct_pos
  @ct_pos
end

#rt_pos ⇒ Object (readonly)

Returns the value of attribute rt_pos.



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 15

def rt_pos
  @rt_pos
end

Instance Method Details

#computations ⇒ Object 



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 17

def computations
  @computations.each { |idx, comp| yield idx, comp }
end

#computed(idx) ⇒ Object 



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 21

def computed idx
  @computations[idx]
end

#export_args ⇒ Object 



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 25

def export_args
  (0...(@args.keys.max&.succ||0))
    .inject [] do |result, idx|
      if @args.has_key?(idx)
        result << @args[idx]
      else
        result << RuntimeArg
      end
      result
    end
end

#set_computation(comp_arg) ⇒ Object 



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 37

def set_computation comp_arg
  @args[comp_arg.position || ct_pos]         = comp_arg.class
  @computations[comp_arg.position || rt_pos] = comp_arg
end

#set_runtime_arg(rt_arg) ⇒ Object

An rt_arg placeholder



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 43

def set_runtime_arg rt_arg 
  @args[ct_pos] = rt_arg.class
  @translations[rt_arg.position || rt_pos] = ct_pos
  _update_positions
end

#set_value!(value, ct_pos = nil) ⇒ Object

A curried value or computation, occurs from ‘ct_args` or literal values in which case `ct_pos` is `nil`

Raises:



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 50

def set_value! value, ct_pos=nil
  ct_pos ||= @ct_pos
  raise Lab42::Curry::DuplicatePositionSpecification,
    "There is already a curried value #{@args[ct_pos].inspect} at index #{ct_pos}" if _occupied?(ct_pos)
  @args[ct_pos] = value

  (@ct_pos..ct_pos.pred).each(&method(:_occupy))
  # TODO: Need to check if we have to fill the holes with RuntimeArg
  # and allow @ct_pos to point to present RuntimeArg values?

  _update_positions
end

#translation(idx) ⇒ Object 



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# File 'lib/lab42/curry/arg_compiler/positionals.rb', line 63

def translation idx
  @translations[idx]
end