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7daa1083c9
While less nice, this open the door to eluding the State object
allocation when possible.
5c0d428d4c
105 lines
3.2 KiB
Ruby
105 lines
3.2 KiB
Ruby
# frozen_string_literal: true
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module JSON
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module Ext
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module Generator
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class State
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# call-seq: new(opts = {})
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#
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# Instantiates a new State object, configured by _opts_.
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#
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# _opts_ can have the following keys:
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#
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# * *indent*: a string used to indent levels (default: ''),
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# * *space*: a string that is put after, a : or , delimiter (default: ''),
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# * *space_before*: a string that is put before a : pair delimiter (default: ''),
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# * *object_nl*: a string that is put at the end of a JSON object (default: ''),
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# * *array_nl*: a string that is put at the end of a JSON array (default: ''),
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# * *allow_nan*: true if NaN, Infinity, and -Infinity should be
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# generated, otherwise an exception is thrown, if these values are
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# encountered. This options defaults to false.
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# * *ascii_only*: true if only ASCII characters should be generated. This
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# option defaults to false.
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# * *buffer_initial_length*: sets the initial length of the generator's
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# internal buffer.
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def initialize(opts = nil)
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if opts && !opts.empty?
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configure(opts)
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end
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end
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# call-seq: configure(opts)
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#
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# Configure this State instance with the Hash _opts_, and return
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# itself.
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def configure(opts)
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unless opts.is_a?(Hash)
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if opts.respond_to?(:to_hash)
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opts = opts.to_hash
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elsif opts.respond_to?(:to_h)
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opts = opts.to_h
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else
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raise TypeError, "can't convert #{opts.class} into Hash"
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end
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end
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_configure(opts)
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end
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alias_method :merge, :configure
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# call-seq: to_h
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#
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# Returns the configuration instance variables as a hash, that can be
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# passed to the configure method.
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def to_h
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result = {
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indent: indent,
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space: space,
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space_before: space_before,
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object_nl: object_nl,
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array_nl: array_nl,
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allow_nan: allow_nan?,
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ascii_only: ascii_only?,
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max_nesting: max_nesting,
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script_safe: script_safe?,
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strict: strict?,
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depth: depth,
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buffer_initial_length: buffer_initial_length,
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}
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instance_variables.each do |iv|
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iv = iv.to_s[1..-1]
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result[iv.to_sym] = self[iv]
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end
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result
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end
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alias_method :to_hash, :to_h
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# call-seq: [](name)
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#
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# Returns the value returned by method +name+.
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def [](name)
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if respond_to?(name)
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__send__(name)
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else
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instance_variable_get("@#{name}") if
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instance_variables.include?("@#{name}".to_sym) # avoid warning
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end
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end
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# call-seq: []=(name, value)
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#
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# Sets the attribute name to value.
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def []=(name, value)
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if respond_to?(name_writer = "#{name}=")
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__send__ name_writer, value
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else
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instance_variable_set "@#{name}", value
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end
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end
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end
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end
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end
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end
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