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Versions: 8
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Stored size: 1.27 KB
Contents
module Mutest
class Mutator
class Node
# OpAsgn mutator
class OpAsgn < self
handle(:op_asgn)
children :left, :operation, :right
private
# Emit mutations
#
# @return [undefined]
def dispatch
emit_singletons
emit_left_mutations do |node|
!n_self?(node)
end
emit_right_mutations
emit_compound_assignment_mutations
end
# Mutate compound assignments like `+=` to `+` and `=`
def emit_compound_assignment_mutations
case left.type
when :lvasgn then emit_lvar_mutation
when :ivasgn then emit_ivar_mutation
when :send then emit_send_mutation
end
end
def emit_lvar_mutation
emit(s(:send, s(:send, nil, *left), operation, right))
emit(s(:lvasgn, *left, right))
end
def emit_ivar_mutation
emit(s(:send, s(:ivar, *left), operation, right))
emit(s(:ivasgn, *left, right))
end
def emit_send_mutation
emit(s(:send, left, operation, right))
emit(s(:send, left.children.first, :"#{left.children.last}=", right))
end
end # OpAsgn
end # Node
end # Mutator
end # Mutest
Version data entries
8 entries across 8 versions & 1 rubygems