Module: Generator::Function

Defined in:
lib/rubysol/generator.rb

Class Method Summary collapse

Class Method Details

.params(method, inputs, *args_unsafe, **kwargs_unsafe) ⇒ Object 



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# File 'lib/rubysol/generator.rb', line 46

def self.params( method, inputs, *args_unsafe, **kwargs_unsafe )
    m = method
    params = m.parameters
    ## puts "params for #{m} - #{m.owner}:"
    ## pp params
    
    ## e.g.
    ## [[:keyreq, :name], 
    ##  [:keyreq, :symbol], 
    ##  [:keyreq, :decimals], 
    ##  [:keyreq, :totalSupply]]
    ## get keys
    keys = params.map { |param| param[1] }
    ## puts "keys:"
    ## pp keys
 
    kwargs =  if !args_unsafe.empty? 
                 values = inputs.zip( args_unsafe ).map do |type, value|
                              typecheck( type, value )
                          end
                 ## puts "args:"
                 ## puts values.pretty_print_inspect

                 keys.zip( values ).map do |key,value|
                                         [key,value]
                 end.to_h
              elsif !kwargs_unsafe.empty?
                 types = keys.zip( inputs ).map do |key,type|
                                         [key,type]
                         end.to_h
                 ## puts "types:"
                 ## pp types
                 kwargs_unsafe.map do |key,value|
                    type = types[key]
                    raise ArgumentError, "unknown kwarg #{key}; sorry"   if type.nil?
                    [key, typecheck( type, value)]
                end.to_h
              else
                ## assume no args - e.g. construct - double check for empty input spec/def!!!
                if inputs.empty?
                  {}   
                else
                  raise ArgumentError, "Array (args) or Hash (kwargs) required for func call; sorry"
                end
              end

    unless kwargs.empty?          
      puts "#{kwargs.size} kwarg(s):"
      pp kwargs
    end
    
    kwargs
end

.typecheck(type, value) ⇒ Object 



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# File 'lib/rubysol/generator.rb', line 33

def self.typecheck( type, value )
    ##   check if value is already typed?
    if value.is_a?( Types::Typed )
       ## type check
       raise TypeError, "type #{type} expected; got #{value.pretty_print_inspect}"  unless type == value.type
       value
    else
        ## assume "literal" value
        type.new( value )
    end
end