58 lines
1.2 KiB
Ruby
58 lines
1.2 KiB
Ruby
module Mutant
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class Mutator
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class Node
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class Literal < self
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# Mutator for float literals
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class Float < self
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handle(:float)
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private
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# Emit mutants
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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 dispatch
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emit_singletons
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emit_values(values)
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emit_special_cases
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end
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SPECIAL = [
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N_NAN,
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N_NEGATIVE_INFINITY,
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N_INFINITY
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].freeze
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# Emit special cases
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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_special_cases
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SPECIAL.each(&method(:emit))
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end
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# Return values to test against
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#
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# @return [Array]
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#
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# @api private
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#
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def values
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original = children.first
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# Work around a bug in RBX/MRI or JRUBY:
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[0.0, 1.0, -original].delete_if do |value|
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value.eql?(original)
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end
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end
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end # Float
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end # Literal
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end # Node
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end # Mutator
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end # Mutant
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