7248afc490
The `multi_json` gem dynamically selects a JSON implementation from a list of candidates. Since we cannot control which gems are installed on a user's machine, this patch hardwires `multi_json` to use the included copy of `ok_json`. `ok_json` is a pure-Ruby JSON encoder/decoder that is bundled with `multi_json`. `ok_json` may not be as fast as other choices, but speed is not critical for our application. Closes Homebrew/homebrew#8574. Signed-off-by: Charlie Sharpsteen <source@sharpsteen.net>
63 lines
1.6 KiB
Ruby
63 lines
1.6 KiB
Ruby
module MultiJson
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class DecodeError < StandardError; end
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module_function
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@engine = nil
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# Get the current engine class.
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def engine
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return @engine if @engine
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self.engine = self.default_engine
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@engine
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end
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REQUIREMENT_MAP = [
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["yajl", :yajl],
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["json", :json_gem],
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["json/pure", :json_pure]
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]
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# The default engine based on what you currently
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# have loaded and installed. First checks to see
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# if any engines are already loaded, then checks
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# to see which are installed if none are loaded.
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def default_engine
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:ok_json
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end
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# Set the JSON parser utilizing a symbol, string, or class.
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# Supported by default are:
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#
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# * <tt>:json_gem</tt>
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# * <tt>:json_pure</tt>
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# * <tt>:ok_json</tt>
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# * <tt>:yajl</tt>
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def engine=(new_engine)
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case new_engine
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when String, Symbol
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require "vendor/multi_json/engines/#{new_engine}"
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@engine = MultiJson::Engines.const_get("#{new_engine.to_s.split('_').map{|s| s.capitalize}.join('')}")
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when Class
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@engine = new_engine
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else
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raise "Did not recognize your engine specification. Please specify either a symbol or a class."
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end
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end
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# Decode a JSON string into Ruby.
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#
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# <b>Options</b>
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#
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# <tt>:symbolize_keys</tt> :: If true, will use symbols instead of strings for the keys.
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def decode(string, options = {})
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engine.decode(string, options)
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rescue engine::ParseError => exception
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raise DecodeError, exception.message, exception.backtrace
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end
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# Encodes a Ruby object as JSON.
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def encode(object)
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engine.encode(object)
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end
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end
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