Class: Opal::Rewriters::Arguments

Inherits:
Object
  • Object
show all
Defined in:
opal/lib/opal/rewriters/arguments.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Arguments

Returns a new instance of Arguments.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 10

def initialize(args)
  @args = []
  @optargs = []
  @restarg = nil
  @postargs = []
  @kwargs = []
  @kwoptargs = []
  @kwrestarg = nil
  @kwnilarg = false
  @shadowargs = []
  @blockarg = nil

  args.each do |arg|
    case arg.type
    when :arg, :mlhs
      (@restarg || @optargs.any? ? @postargs : @args) << arg
    when :optarg
      @optargs << arg
    when :restarg
      @restarg = arg
    when :kwarg
      @kwargs << arg
    when :kwoptarg
      @kwoptargs << arg
    when :kwnilarg
      @kwnilarg = true
    when :kwrestarg
      @kwrestarg = arg
    when :shadowarg
      @shadowargs << arg
    when :blockarg
      @blockarg = arg
    else
      raise "Unsupported arg type #{arg.type}"
    end
  end
end

Instance Attribute Details

#argsObject (readonly)

Returns the value of attribute args.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def args
  @args
end

#blockargObject (readonly)

Returns the value of attribute blockarg.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def blockarg
  @blockarg
end

#kwargsObject (readonly)

Returns the value of attribute kwargs.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def kwargs
  @kwargs
end

#kwnilargObject (readonly)

Returns the value of attribute kwnilarg.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def kwnilarg
  @kwnilarg
end

#kwoptargsObject (readonly)

Returns the value of attribute kwoptargs.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def kwoptargs
  @kwoptargs
end

#kwrestargObject (readonly)

Returns the value of attribute kwrestarg.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def kwrestarg
  @kwrestarg
end

#optargsObject (readonly)

Returns the value of attribute optargs.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def optargs
  @optargs
end

#postargsObject (readonly)

Returns the value of attribute postargs.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def postargs
  @postargs
end

#restargObject (readonly)

Returns the value of attribute restarg.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def restarg
  @restarg
end

#shadowargsObject (readonly)

Returns the value of attribute shadowargs.


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# File 'opal/lib/opal/rewriters/arguments.rb', line 6

def shadowargs
  @shadowargs
end

Instance Method Details

#can_inline_kwargs?Boolean

Returns:

  • (Boolean)

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# File 'opal/lib/opal/rewriters/arguments.rb', line 56

def can_inline_kwargs?
  @optargs.empty? && @restarg.nil? && @postargs.empty?
end

#has_any_kwargs?Boolean

Returns:

  • (Boolean)

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# File 'opal/lib/opal/rewriters/arguments.rb', line 52

def has_any_kwargs?
  @kwargs.any? || @kwoptargs.any? || !@kwrestarg.nil?
end

#has_post_args?Boolean

Returns:

  • (Boolean)

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# File 'opal/lib/opal/rewriters/arguments.rb', line 48

def has_post_args?
  !@restarg.nil? || @postargs.any? || (has_any_kwargs? && !can_inline_kwargs?)
end