Class: Gandiva::ExpressionBuilder::Literal

Inherits:
Object
  • Object
show all
Defined in:
lib/gandiva/expression-builder/literal.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(node_class, value) ⇒ Literal

Returns a new instance of Literal.



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# File 'lib/gandiva/expression-builder/literal.rb', line 55

def initialize(node_class, value)
  @node_class = node_class
  @value = value
end

Instance Attribute Details

#value ⇒ Object (readonly)

Returns the value of attribute value.



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# File 'lib/gandiva/expression-builder/literal.rb', line 54

def value
  @value
end

Class Method Details

.resolve(value) ⇒ Object 



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# File 'lib/gandiva/expression-builder/literal.rb', line 22

def resolve(value)
  case value
  when true, false
    new(BooleanLiteralNode, value)
  when Integer
    if value < -(2 ** 31)
      new(Int64LiteralNode, value)
    elsif value < -(2 ** 15)
      new(Int32LiteralNode, value)
    elsif value < -(2 ** 7)
      new(Int16LiteralNode, value)
    elsif value < 0
      new(Int8LiteralNode, value)
    elsif value < (2 ** 8 - 1)
      new(UInt8LiteralNode, value)
    elsif value < (2 ** 16 - 1)
      new(UInt16LiteralNode, value)
    elsif value < (2 ** 32 - 1)
      new(UInt32LiteralNode, value)
    else
      new(UInt64LiteralNode, value)
    end
  when Float
    new(DoubleLiteralNode, value)
  when String
    new(StringLiteralNode, value)
  else
    nil
  end
end

Instance Method Details

#build ⇒ Object 



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# File 'lib/gandiva/expression-builder/literal.rb', line 60

def build
  @node_class.new(value)
end