9e8b451933
* This is in progress code. The plan is to support all literals before beginning to cleanup and dedup the mutation generation. Have to understand the AST and the possible mutations more in depth before making structural decisions here.
85 lines
1.4 KiB
Ruby
85 lines
1.4 KiB
Ruby
module Mutant
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# Represent a mutatable AST and its context
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class Mutatee
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include Veritas::Immutable, Enumerable
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# Return context
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#
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# @return [Context]
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#
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# @api private
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#
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attr_reader :context
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# Return AST node
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#
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# @return [Rubinius::AST::Node]
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#
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# @api private
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#
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attr_reader :node
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# Enumerate possible mutations
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#
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# @return [self]
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# returns self if block given
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#
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# @return [Enumerator]
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# returns eumerator if no block given
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#
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# @api private
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#
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def each(&block)
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return to_enum(__method__) unless block_given?
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Mutator.build(node).each(&block)
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self
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end
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# Reset implementation to original
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#
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# This method inserts the original node again.
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#
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# @return [self]
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#
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# @api private
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#
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def reset
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insert(@node)
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self
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end
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private
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# Initialize a mutatee
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#
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# @param [Context] context
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# the context of mutations
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#
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# @param [Rubinius::AST::Node] node
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# the node to be mutated
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#
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# @return [unkown]
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#
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# @api private
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#
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def initialize(context,node)
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@context,@node = context,node
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end
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# Insert AST node under context
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#
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# @param [Rubinius::AST::Node] node
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#
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# @return [self]
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#
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# @api private
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#
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def insert(node)
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Loader.load(context.root(node))
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self
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end
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end
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end
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