50 lines
1.2 KiB
Ruby
50 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED
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require 'json'
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end
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class Exception
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# See #as_json.
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def self.json_create(object)
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result = new(object['m'])
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result.set_backtrace object['b']
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result
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end
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# Methods <tt>Exception#as_json</tt> and +Exception.json_create+ may be used
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# to serialize and deserialize a \Exception object;
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# see Marshal[https://docs.ruby-lang.org/en/master/Marshal.html].
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#
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# \Method <tt>Exception#as_json</tt> serializes +self+,
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# returning a 2-element hash representing +self+:
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#
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# require 'json/add/exception'
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# x = Exception.new('Foo').as_json # => {"json_class"=>"Exception", "m"=>"Foo", "b"=>nil}
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#
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# \Method +JSON.create+ deserializes such a hash, returning a \Exception object:
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#
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# Exception.json_create(x) # => #<Exception: Foo>
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#
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def as_json(*)
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{
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JSON.create_id => self.class.name,
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'm' => message,
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'b' => backtrace,
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}
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end
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# Returns a JSON string representing +self+:
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#
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# require 'json/add/exception'
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# puts Exception.new('Foo').to_json
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#
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# Output:
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#
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# {"json_class":"Exception","m":"Foo","b":null}
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#
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def to_json(*args)
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as_json.to_json(*args)
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end
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end
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