Class: Objc2swiftAssistant::Objc2SwiftBlockSignature

Inherits:
Object
  • Object
show all
Defined in:
lib/objc2swift_assistant/objc_2_swift_block_conversion.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(block_converter) ⇒ Objc2SwiftBlockSignature

Returns a new instance of Objc2SwiftBlockSignature.



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 38

def initialize( block_converter )
  @block_converter = block_converter
end

Instance Attribute Details

#arguments ⇒ Object

Returns the value of attribute arguments.



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 36

def arguments
  @arguments
end

#block_converter ⇒ Object

Returns the value of attribute block_converter.



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 34

def block_converter
  @block_converter
end

#return_type ⇒ Object

Returns the value of attribute return_type.



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 35

def return_type
  @return_type
end

Instance Method Details

#arg_for_objc_str(arg_str) ⇒ Object 



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 100

def arg_for_objc_str( arg_str )
  argument = ObjCBlockParameter.new()
  argument.from_declaration( arg_str )
  argument
end

#from_argument_type(arg_type) ⇒ Object 



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 50

def from_argument_type( arg_type )
  if arg_type.count('^') > 1
    failure = "Cannot convert nested Block: #{arg_type}"
    return "String /*#{failure}*/", failure
  else
    m = arg_type.match( /(?<return_type>[^\(]*)\s*\(\s*\^\s*\)\s*\((?<arg_string>.*)\)/ )
    if m.nil?
      failure = "Cannot match block: #{arg_type}"
      return "String /*#{failure}*/", failure
    else
      objc_return_type = m[ 'return_type' ].strip!
      @return_type = @block_converter.type_converter.swift_type_for_objc_type( objc_return_type )

      arg_string = m[ 'arg_string' ]
      arg_strings = arg_string.nil? ? [] : arg_string.split( ',' )

      @arguments = arg_strings.map do |arg_str|
        arg_for_objc_str( arg_str.strip )
      end
    end
  end
end

#from_components(return_type_str, arg_strings) ⇒ Object 



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 42

def from_components( return_type_str, arg_strings )
  @return_type = @block_converter.type_converter.swift_type_for_objc_type( return_type_str )

  @arguments = arg_strings.map do |arg_str|
    arg_for_objc_str( arg_str.strip )
  end
end

#from_property_type(prop_type) ⇒ Object 



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 96

def from_property_type( prop_type )

end

#swift_declaration(full = true) ⇒ Object 



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# File 'lib/objc2swift_assistant/objc_2_swift_block_conversion.rb', line 73

def swift_declaration( full=true )
  swift_args = @arguments.map do |arg|
    if arg.param_name.nil?
      str = "#{arg.param_type}"
    else
      str = "#{arg.param_name}: #{arg.param_type}"
    end
    str
  end

  sig = "(( #{swift_args.join( ', ' )} )"
  if full || !return_type.nil?
    if return_type.nil?
      sig += " -> ())" if return_type.nil?
    else
      sig += " -> #{return_type})"
    end
  else
    sig += " -> #{return_type})" unless return_type.nil?
  end
  sig
end