Class: Mgmg::IR::Multi

Inherits:
Object
  • Object
show all
Defined in:
lib/mgmg/ir.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(body) ⇒ Multi

Returns a new instance of Multi.



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# File 'lib/mgmg/ir.rb', line 78

def initialize(body)
	@body = body
end

Instance Attribute Details

#body ⇒ Object

Returns the value of attribute body.



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# File 'lib/mgmg/ir.rb', line 81

def body
  @body
end

Class Method Details

.sum(a, b) ⇒ Object 



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# File 'lib/mgmg/ir.rb', line 99

def sum(a, b)
	unconsts, const = [], Const.new(0)
	case a
	when Multi
		if a.body[0].kind_of?(Const)
			const.value += a.body[0].value
			unconsts = a.body[1..(-1)]
		else
			unconsts = a.body.dup
		end
	when Const
		const.value += a.value
	else
		unconsts << a
	end
	case b
	when Multi
		if b.body[0].kind_of?(Const)
			const.value += b.body[0].value
			unconsts.concat(b.body[1..(-1)])
		else
			unconsts.concat(b.body)
		end
	when Const
		const.value += b.value
	else
		unconsts << b
	end
	body = ( const.value == 0 ? unconsts : [const, *unconsts] )
	case body.size
	when 0
		const
	when 1
		body[0]
	else
		new(body)
	end
end

Instance Method Details

#evaluate(s, c) ⇒ Object 



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# File 'lib/mgmg/ir.rb', line 85

def evaluate(s, c)
	@body.sum do |e|
		e.evaluate(s, c)
	end
end

#evaluate3(s, a, c) ⇒ Object 



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# File 'lib/mgmg/ir.rb', line 90

def evaluate3(s, a, c)
	@body.sum do |e|
		e.evaluate3(s, a, c)
	end
end

#initialize_copy(other) ⇒ Object 



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# File 'lib/mgmg/ir.rb', line 82

def initialize_copy(other)
	@body = other.body.dup
end

#to_s ⇒ Object 



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# File 'lib/mgmg/ir.rb', line 95

def to_s
	@body.map(&:to_s).join('+')
end