Module: RuboCop::AST::ParameterizedNode

Included in:
SendNode, SuperNode
Defined in:
lib/rubocop/ast/node/mixin/parameterized_node.rb

Overview

Common functionality for nodes that are parameterized: ‘send`, `super`, `zsuper` …

Instance Method Summary collapse

Instance Method Details

#arguments? ⇒ Boolean

Checks whether this method was invoked with arguments.

Returns:

  • (Boolean) —

    whether this method was invoked with arguments



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 38

def arguments?
  !arguments.empty?
end

#block_argument? ⇒ Boolean

Whether the last argument of the method invocation is a block pass, i.e. ‘&block`.

Returns:

  • (Boolean) —

    whether the invoked method is a block pass



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 54

def block_argument?
  arguments? && last_argument.block_pass_type?
end

#block_literal? ⇒ Boolean

Whether this method invocation has an explicit block.

Returns:

  • (Boolean) —

    whether the invoked method has a block



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 61

def block_literal?
  parent && parent.block_type? && eql?(parent.send_node)
end

#block_node ⇒ BlockNode?

The block node associated with this method call, if any.

Returns:

  • (BlockNode, nil) —

    the ‘block` node associated with this method call or `nil`



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 69

def block_node
  parent if block_literal?
end

#first_argument ⇒ Node?

A shorthand for getting the first argument of the method invocation. Equivalent to ‘arguments.first`.

Returns:

  • (Node, nil) —

    the first argument of the method invocation, or ‘nil` if there are no arguments



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 22

def first_argument
  arguments[0]
end

#last_argument ⇒ Node?

A shorthand for getting the last argument of the method invocation. Equivalent to ‘arguments.last`.

Returns:

  • (Node, nil) —

    the last argument of the method invocation, or ‘nil` if there are no arguments



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 31

def last_argument
  arguments[-1]
end

#parenthesized? ⇒ Boolean

Checks whether this super invocation’s arguments are wrapped in parentheses.

Returns:

  • (Boolean) —

    whether this super invocation’s arguments are wrapped in parentheses



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 13

def parenthesized?
  loc.end && loc.end.is?(')')
end

#splat_argument? ⇒ Boolean

Checks whether any argument of the method invocation is a splat argument, i.e. ‘*splat`.

Returns:

  • (Boolean) —

    whether the invoked method is a splat argument



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# File 'lib/rubocop/ast/node/mixin/parameterized_node.rb', line 46

def splat_argument?
  arguments? && arguments.any?(&:splat_type?)
end