0d3248ea79
* This creates an unsuccessful isolation results when the killfork dies * But also allows to record related exceptions in the parent (such as closed pipe when child exits)
54 lines
1.2 KiB
Ruby
54 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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module Mutant
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# Isolation mechanism
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class Isolation
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include AbstractType
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# Isolated computation result
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class Result
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include AbstractType, Adamantium
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abstract_method :error
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abstract_method :next
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abstract_method :value
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# Add error on top of current result
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#
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# @param [Result] error
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#
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# @return [Result]
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def add_error(error)
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ErrorChain.new(error, self)
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end
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# Test for success
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#
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# @return [Boolean]
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def success?
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instance_of?(Success)
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end
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# Succesful result producing value
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class Success < self
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include Concord::Public.new(:value)
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end # Success
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# Unsuccessful result by unexpected exception
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class Exception < self
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include Concord::Public.new(:value)
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end # Error
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# Result when there where many results
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class ErrorChain < Result
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include Concord::Public.new(:value, :next)
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end # ChainError
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end # Result
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# Call block in isolation
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#
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# @return [Result]
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# the blocks result
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abstract_method :call
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end # Isolation
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end # Mutant
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