Class: WAB::Impl::Not

Inherits:

Expr

• Object
• Expr
• WAB::Impl::Not

Defined in:

lib/wab/impl/exprs/not.rb

Overview

Negates and expression.

Instance Method Summary

• #eval(data) ⇒ Object
• #initialize(arg) ⇒ Not constructor

  Create an NOT expression with the provided argument which must be an instance of a subclass of the Expr class.

• #native ⇒ Object

Constructor Details

#initialize(arg) ⇒ Not

Create an NOT expression with the provided argument which must be an instance of a subclass of the Expr class.

arg

argument to the NOT expression

# File 'lib/wab/impl/exprs/not.rb', line 12

def initialize(arg)
  super()
  @arg = arg
end

Instance Method Details

#eval(data) ⇒ Object

# File 'lib/wab/impl/exprs/not.rb', line 17

def eval(data)
  !@arg.eval(data)
end

#native ⇒ Object

# File 'lib/wab/impl/exprs/not.rb', line 21

def native()
  ['NOT', @arg.native]
end