69 lines
1.5 KiB
Ruby
69 lines
1.5 KiB
Ruby
module Mutant
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class Mutator
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class Node
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# Abstract mutator for literal AST nodes
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class Literal < self
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include AbstractType
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private
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# Return new float literal
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#
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# @param [#to_f] value
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#
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# @return [Rubinius::Node::FloatLiteral]
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#
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# @api private
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#
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def new_float(value)
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new(Rubinius::AST::FloatLiteral, value)
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end
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# Emit a new node with wrapping class for each entry in values
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#
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# @param [Array] values
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#
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# @return [undefined]
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#
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# @api private
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#
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def emit_values(values)
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values.each do |value|
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emit_self(value)
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end
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end
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# Return AST representing NaN
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#
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# @return [Rubinius::Node::AST]
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#
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# @api private
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#
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def nan
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zero_float = new_float(0)
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new_send_with_arguments(zero_float, :/, zero_float)
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end
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# Return AST representing negative infinity
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#
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# @return [Rubinius::Node::AST]
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#
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# @api private
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#
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def negative_infinity
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new(Rubinius::AST::Negate, infinity)
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end
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# Return AST representing infinity
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#
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# @return [Rubinius::Node::AST]
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#
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# @api private
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#
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def infinity
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new_send_with_arguments(new_float(1), :/, new_float(0))
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end
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end
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end
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end
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end
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