Class: Kumi::Core::NAST::Reduce

Inherits:
Node
  • Object
show all
Defined in:
lib/kumi/core/nast.rb

Overview

Semantic reduction over explicit axes, with kernel id (e.g., :“agg.sum”)

Instance Attribute Summary collapse

Attributes inherited from Node

#id, #loc, #meta

Instance Method Summary collapse

Methods inherited from Node

#each_child

Constructor Details

#initialize(fn:, over:, arg:, **k) ⇒ Reduce

Returns a new instance of Reduce.



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# File 'lib/kumi/core/nast.rb', line 213

def initialize(fn:, over:, arg:, **k)
  super(**k)
  @fn = fn.to_sym
  @over  = Array(over).map!(&:to_sym)
  @arg   = arg
end

Instance Attribute Details

#arg ⇒ Object (readonly)

Returns the value of attribute arg.



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# File 'lib/kumi/core/nast.rb', line 211

def arg
  @arg
end

#fn ⇒ Object (readonly)

Returns the value of attribute fn.



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# File 'lib/kumi/core/nast.rb', line 211

def fn
  @fn
end

#over ⇒ Object (readonly)

Returns the value of attribute over.



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# File 'lib/kumi/core/nast.rb', line 211

def over
  @over
end

Instance Method Details

#accept(visitor) ⇒ Object 



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# File 'lib/kumi/core/nast.rb', line 220

def accept(visitor)
  visitor.respond_to?(:visit_reduce) ? visitor.visit_reduce(self) : super
end

#children ⇒ Object 



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# File 'lib/kumi/core/nast.rb', line 224

def children = [arg]