3ae85ea0f9
* Before Symbol#==, Symbol#eql?, and Symbol#equal? where used inconsistently * Lots of redundant foo.type.equal?(:symbol)
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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# Mutator for if nodes
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class If < self
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handle(:if)
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children :condition, :if_branch, :else_branch
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private
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# Emit mutations
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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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mutate_condition
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mutate_if_branch
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mutate_else_branch
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end
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# Emit conditon mutations
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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 mutate_condition
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emit_condition_mutations do |condition|
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!n_self?(condition)
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end
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emit_type(n_not(condition), if_branch, else_branch) unless n_match_current_line?(condition)
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emit_type(N_TRUE, if_branch, else_branch)
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emit_type(N_FALSE, if_branch, else_branch)
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end
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# Emit if branch mutations
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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 mutate_if_branch
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emit_type(condition, else_branch, nil) if else_branch
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return unless if_branch
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emit_if_branch_mutations
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emit_type(condition, if_branch, nil)
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end
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# Emit else branch mutations
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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 mutate_else_branch
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return unless else_branch
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emit_else_branch_mutations
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emit_type(condition, nil, else_branch)
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end
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end # If
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end # Node
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end # Mutator
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end # Mutant
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