Vendor bundled gems for deployment

1 files changed, 1104 insertions, 0 deletions

diff --git a/vendor/bundle/ruby/3.4.0/gems/json-2.12.2/lib/json/common.rb b/vendor/bundle/ruby/3.4.0/gems/json-2.12.2/lib/json/common.rb
new file mode 100644
index 0000000..6393a6d
--- /dev/null
+++ b/vendor/bundle/ruby/3.4.0/gems/json-2.12.2/lib/json/common.rb
@@ -0,0 +1,1104 @@
+# frozen_string_literal: true
+
+require 'json/version'
+
+module JSON
+  autoload :GenericObject, 'json/generic_object'
+
+  module ParserOptions # :nodoc:
+    class << self
+      def prepare(opts)
+        if opts[:object_class] || opts[:array_class]
+          opts = opts.dup
+          on_load = opts[:on_load]
+
+          on_load = object_class_proc(opts[:object_class], on_load) if opts[:object_class]
+          on_load = array_class_proc(opts[:array_class], on_load) if opts[:array_class]
+          opts[:on_load] = on_load
+        end
+
+        if opts.fetch(:create_additions, false) != false
+          opts = create_additions_proc(opts)
+        end
+
+        opts
+      end
+
+      private
+
+      def object_class_proc(object_class, on_load)
+        ->(obj) do
+          if Hash === obj
+            object = object_class.new
+            obj.each { |k, v| object[k] = v }
+            obj = object
+          end
+          on_load.nil? ? obj : on_load.call(obj)
+        end
+      end
+
+      def array_class_proc(array_class, on_load)
+        ->(obj) do
+          if Array === obj
+            array = array_class.new
+            obj.each { |v| array << v }
+            obj = array
+          end
+          on_load.nil? ? obj : on_load.call(obj)
+        end
+      end
+
+      # TODO: exctract :create_additions support to another gem for version 3.0
+      def create_additions_proc(opts)
+        if opts[:symbolize_names]
+          raise ArgumentError, "options :symbolize_names and :create_additions cannot be  used in conjunction"
+        end
+
+        opts = opts.dup
+        create_additions = opts.fetch(:create_additions, false)
+        on_load = opts[:on_load]
+        object_class = opts[:object_class] || Hash
+
+        opts[:on_load] = ->(object) do
+          case object
+          when String
+            opts[:match_string]&.each do |pattern, klass|
+              if match = pattern.match(object)
+                create_additions_warning if create_additions.nil?
+                object = klass.json_create(object)
+                break
+              end
+            end
+          when object_class
+            if opts[:create_additions] != false
+              if class_name = object[JSON.create_id]
+                klass = JSON.deep_const_get(class_name)
+                if (klass.respond_to?(:json_creatable?) && klass.json_creatable?) || klass.respond_to?(:json_create)
+                  create_additions_warning if create_additions.nil?
+                  object = klass.json_create(object)
+                end
+              end
+            end
+          end
+
+          on_load.nil? ? object : on_load.call(object)
+        end
+
+        opts
+      end
+
+      GEM_ROOT = File.expand_path("../../../", __FILE__) + "/"
+      def create_additions_warning
+        message = "JSON.load implicit support for `create_additions: true` is deprecated " \
+          "and will be removed in 3.0, use JSON.unsafe_load or explicitly " \
+          "pass `create_additions: true`"
+
+        uplevel = 4
+        caller_locations(uplevel, 10).each do |frame|
+          if frame.path.nil? || frame.path.start_with?(GEM_ROOT) || frame.path.end_with?("/truffle/cext_ruby.rb", ".c")
+            uplevel += 1
+          else
+            break
+          end
+        end
+
+        if RUBY_VERSION >= "3.0"
+          warn(message, uplevel: uplevel - 1, category: :deprecated)
+        else
+          warn(message, uplevel: uplevel - 1)
+        end
+      end
+    end
+  end
+
+  class << self
+    # :call-seq:
+    #   JSON[object] -> new_array or new_string
+    #
+    # If +object+ is a \String,
+    # calls JSON.parse with +object+ and +opts+ (see method #parse):
+    #   json = '[0, 1, null]'
+    #   JSON[json]# => [0, 1, nil]
+    #
+    # Otherwise, calls JSON.generate with +object+ and +opts+ (see method #generate):
+    #   ruby = [0, 1, nil]
+    #   JSON[ruby] # => '[0,1,null]'
+    def [](object, opts = nil)
+      if object.is_a?(String)
+        return JSON.parse(object, opts)
+      elsif object.respond_to?(:to_str)
+        str = object.to_str
+        if str.is_a?(String)
+          return JSON.parse(str, opts)
+        end
+      end
+
+      JSON.generate(object, opts)
+    end
+
+    # Returns the JSON parser class that is used by JSON.
+    attr_reader :parser
+
+    # Set the JSON parser class _parser_ to be used by JSON.
+    def parser=(parser) # :nodoc:
+      @parser = parser
+      remove_const :Parser if const_defined?(:Parser, false)
+      const_set :Parser, parser
+    end
+
+    # Return the constant located at _path_. The format of _path_ has to be
+    # either ::A::B::C or A::B::C. In any case, A has to be located at the top
+    # level (absolute namespace path?). If there doesn't exist a constant at
+    # the given path, an ArgumentError is raised.
+    def deep_const_get(path) # :nodoc:
+      Object.const_get(path)
+    rescue NameError => e
+      raise ArgumentError, "can't get const #{path}: #{e}"
+    end
+
+    # Set the module _generator_ to be used by JSON.
+    def generator=(generator) # :nodoc:
+      old, $VERBOSE = $VERBOSE, nil
+      @generator = generator
+      generator_methods = generator::GeneratorMethods
+      for const in generator_methods.constants
+        klass = const_get(const)
+        modul = generator_methods.const_get(const)
+        klass.class_eval do
+          instance_methods(false).each do |m|
+            m.to_s == 'to_json' and remove_method m
+          end
+          include modul
+        end
+      end
+      self.state = generator::State
+      const_set :State, state
+    ensure
+      $VERBOSE = old
+    end
+
+    # Returns the JSON generator module that is used by JSON.
+    attr_reader :generator
+
+    # Sets or Returns the JSON generator state class that is used by JSON.
+    attr_accessor :state
+
+    private
+
+    def deprecated_singleton_attr_accessor(*attrs)
+      args = RUBY_VERSION >= "3.0" ? ", category: :deprecated" : ""
+      attrs.each do |attr|
+        singleton_class.class_eval <<~RUBY
+          def #{attr}
+            warn "JSON.#{attr} is deprecated and will be removed in json 3.0.0", uplevel: 1 #{args}
+            @#{attr}
+          end
+
+          def #{attr}=(val)
+            warn "JSON.#{attr}= is deprecated and will be removed in json 3.0.0", uplevel: 1 #{args}
+            @#{attr} = val
+          end
+
+          def _#{attr}
+            @#{attr}
+          end
+        RUBY
+      end
+    end
+  end
+
+  # Sets create identifier, which is used to decide if the _json_create_
+  # hook of a class should be called; initial value is +json_class+:
+  #   JSON.create_id # => 'json_class'
+  def self.create_id=(new_value)
+    Thread.current[:"JSON.create_id"] = new_value.dup.freeze
+  end
+
+  # Returns the current create identifier.
+  # See also JSON.create_id=.
+  def self.create_id
+    Thread.current[:"JSON.create_id"] || 'json_class'
+  end
+
+  NaN           = Float::NAN
+
+  Infinity      = Float::INFINITY
+
+  MinusInfinity = -Infinity
+
+  # The base exception for JSON errors.
+  class JSONError < StandardError; end
+
+  # This exception is raised if a parser error occurs.
+  class ParserError < JSONError
+    attr_reader :line, :column
+  end
+
+  # This exception is raised if the nesting of parsed data structures is too
+  # deep.
+  class NestingError < ParserError; end
+
+  # This exception is raised if a generator or unparser error occurs.
+  class GeneratorError < JSONError
+    attr_reader :invalid_object
+
+    def initialize(message, invalid_object = nil)
+      super(message)
+      @invalid_object = invalid_object
+    end
+
+    def detailed_message(...)
+      # Exception#detailed_message doesn't exist until Ruby 3.2
+      super_message = defined?(super) ? super : message
+
+      if @invalid_object.nil?
+        super_message
+      else
+        "#{super_message}\nInvalid object: #{@invalid_object.inspect}"
+      end
+    end
+  end
+
+  # Fragment of JSON document that is to be included as is:
+  #   fragment = JSON::Fragment.new("[1, 2, 3]")
+  #   JSON.generate({ count: 3, items: fragments })
+  #
+  # This allows to easily assemble multiple JSON fragments that have
+  # been persisted somewhere without having to parse them nor resorting
+  # to string interpolation.
+  #
+  # Note: no validation is performed on the provided string. It is the
+  # responsability of the caller to ensure the string contains valid JSON.
+  Fragment = Struct.new(:json) do
+    def initialize(json)
+      unless string = String.try_convert(json)
+        raise TypeError, " no implicit conversion of #{json.class} into String"
+      end
+
+      super(string)
+    end
+
+    def to_json(state = nil, *)
+      json
+    end
+  end
+
+  module_function
+
+  # :call-seq:
+  #   JSON.parse(source, opts) -> object
+  #
+  # Returns the Ruby objects created by parsing the given +source+.
+  #
+  # Argument +source+ contains the \String to be parsed.
+  #
+  # Argument +opts+, if given, contains a \Hash of options for the parsing.
+  # See {Parsing Options}[#module-JSON-label-Parsing+Options].
+  #
+  # ---
+  #
+  # When +source+ is a \JSON array, returns a Ruby \Array:
+  #   source = '["foo", 1.0, true, false, null]'
+  #   ruby = JSON.parse(source)
+  #   ruby # => ["foo", 1.0, true, false, nil]
+  #   ruby.class # => Array
+  #
+  # When +source+ is a \JSON object, returns a Ruby \Hash:
+  #   source = '{"a": "foo", "b": 1.0, "c": true, "d": false, "e": null}'
+  #   ruby = JSON.parse(source)
+  #   ruby # => {"a"=>"foo", "b"=>1.0, "c"=>true, "d"=>false, "e"=>nil}
+  #   ruby.class # => Hash
+  #
+  # For examples of parsing for all \JSON data types, see
+  # {Parsing \JSON}[#module-JSON-label-Parsing+JSON].
+  #
+  # Parses nested JSON objects:
+  #   source = <<~JSON
+  #     {
+  #     "name": "Dave",
+  #       "age" :40,
+  #       "hats": [
+  #         "Cattleman's",
+  #         "Panama",
+  #         "Tophat"
+  #       ]
+  #     }
+  #   JSON
+  #   ruby = JSON.parse(source)
+  #   ruby # => {"name"=>"Dave", "age"=>40, "hats"=>["Cattleman's", "Panama", "Tophat"]}
+  #
+  # ---
+  #
+  # Raises an exception if +source+ is not valid JSON:
+  #   # Raises JSON::ParserError (783: unexpected token at ''):
+  #   JSON.parse('')
+  #
+  def parse(source, opts = nil)
+    opts = ParserOptions.prepare(opts) unless opts.nil?
+    Parser.parse(source, opts)
+  end
+
+  PARSE_L_OPTIONS = {
+    max_nesting: false,
+    allow_nan: true,
+  }.freeze
+  private_constant :PARSE_L_OPTIONS
+
+  # :call-seq:
+  #   JSON.parse!(source, opts) -> object
+  #
+  # Calls
+  #   parse(source, opts)
+  # with +source+ and possibly modified +opts+.
+  #
+  # Differences from JSON.parse:
+  # - Option +max_nesting+, if not provided, defaults to +false+,
+  #   which disables checking for nesting depth.
+  # - Option +allow_nan+, if not provided, defaults to +true+.
+  def parse!(source, opts = nil)
+    if opts.nil?
+      parse(source, PARSE_L_OPTIONS)
+    else
+      parse(source, PARSE_L_OPTIONS.merge(opts))
+    end
+  end
+
+  # :call-seq:
+  #   JSON.load_file(path, opts={}) -> object
+  #
+  # Calls:
+  #   parse(File.read(path), opts)
+  #
+  # See method #parse.
+  def load_file(filespec, opts = nil)
+    parse(File.read(filespec, encoding: Encoding::UTF_8), opts)
+  end
+
+  # :call-seq:
+  #   JSON.load_file!(path, opts = {})
+  #
+  # Calls:
+  #   JSON.parse!(File.read(path, opts))
+  #
+  # See method #parse!
+  def load_file!(filespec, opts = nil)
+    parse!(File.read(filespec, encoding: Encoding::UTF_8), opts)
+  end
+
+  # :call-seq:
+  #   JSON.generate(obj, opts = nil) -> new_string
+  #
+  # Returns a \String containing the generated \JSON data.
+  #
+  # See also JSON.fast_generate, JSON.pretty_generate.
+  #
+  # Argument +obj+ is the Ruby object to be converted to \JSON.
+  #
+  # Argument +opts+, if given, contains a \Hash of options for the generation.
+  # See {Generating Options}[#module-JSON-label-Generating+Options].
+  #
+  # ---
+  #
+  # When +obj+ is an \Array, returns a \String containing a \JSON array:
+  #   obj = ["foo", 1.0, true, false, nil]
+  #   json = JSON.generate(obj)
+  #   json # => '["foo",1.0,true,false,null]'
+  #
+  # When +obj+ is a \Hash, returns a \String containing a \JSON object:
+  #   obj = {foo: 0, bar: 's', baz: :bat}
+  #   json = JSON.generate(obj)
+  #   json # => '{"foo":0,"bar":"s","baz":"bat"}'
+  #
+  # For examples of generating from other Ruby objects, see
+  # {Generating \JSON from Other Objects}[#module-JSON-label-Generating+JSON+from+Other+Objects].
+  #
+  # ---
+  #
+  # Raises an exception if any formatting option is not a \String.
+  #
+  # Raises an exception if +obj+ contains circular references:
+  #   a = []; b = []; a.push(b); b.push(a)
+  #   # Raises JSON::NestingError (nesting of 100 is too deep):
+  #   JSON.generate(a)
+  #
+  def generate(obj, opts = nil)
+    if State === opts
+      opts.generate(obj)
+    else
+      State.generate(obj, opts, nil)
+    end
+  end
+
+  # :call-seq:
+  #   JSON.fast_generate(obj, opts) -> new_string
+  #
+  # Arguments +obj+ and +opts+ here are the same as
+  # arguments +obj+ and +opts+ in JSON.generate.
+  #
+  # By default, generates \JSON data without checking
+  # for circular references in +obj+ (option +max_nesting+ set to +false+, disabled).
+  #
+  # Raises an exception if +obj+ contains circular references:
+  #   a = []; b = []; a.push(b); b.push(a)
+  #   # Raises SystemStackError (stack level too deep):
+  #   JSON.fast_generate(a)
+  def fast_generate(obj, opts = nil)
+    if RUBY_VERSION >= "3.0"
+      warn "JSON.fast_generate is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1, category: :deprecated
+    else
+      warn "JSON.fast_generate is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1
+    end
+    generate(obj, opts)
+  end
+
+  PRETTY_GENERATE_OPTIONS = {
+    indent: '  ',
+    space: ' ',
+    object_nl: "\n",
+    array_nl: "\n",
+  }.freeze
+  private_constant :PRETTY_GENERATE_OPTIONS
+
+  # :call-seq:
+  #   JSON.pretty_generate(obj, opts = nil) -> new_string
+  #
+  # Arguments +obj+ and +opts+ here are the same as
+  # arguments +obj+ and +opts+ in JSON.generate.
+  #
+  # Default options are:
+  #   {
+  #     indent: '  ',   # Two spaces
+  #     space: ' ',     # One space
+  #     array_nl: "\n", # Newline
+  #     object_nl: "\n" # Newline
+  #   }
+  #
+  # Example:
+  #   obj = {foo: [:bar, :baz], bat: {bam: 0, bad: 1}}
+  #   json = JSON.pretty_generate(obj)
+  #   puts json
+  # Output:
+  #   {
+  #     "foo": [
+  #       "bar",
+  #       "baz"
+  #     ],
+  #     "bat": {
+  #       "bam": 0,
+  #       "bad": 1
+  #     }
+  #   }
+  #
+  def pretty_generate(obj, opts = nil)
+    return opts.generate(obj) if State === opts
+
+    options = PRETTY_GENERATE_OPTIONS
+
+    if opts
+      unless opts.is_a?(Hash)
+        if opts.respond_to? :to_hash
+          opts = opts.to_hash
+        elsif opts.respond_to? :to_h
+          opts = opts.to_h
+        else
+          raise TypeError, "can't convert #{opts.class} into Hash"
+        end
+      end
+      options = options.merge(opts)
+    end
+
+    State.generate(obj, options, nil)
+  end
+
+  # Sets or returns default options for the JSON.unsafe_load method.
+  # Initially:
+  #   opts = JSON.load_default_options
+  #   opts # => {:max_nesting=>false, :allow_nan=>true, :allow_blank=>true, :create_additions=>true}
+  deprecated_singleton_attr_accessor :unsafe_load_default_options
+
+  @unsafe_load_default_options = {
+    :max_nesting      => false,
+    :allow_nan        => true,
+    :allow_blank      => true,
+    :create_additions => true,
+  }
+
+  # Sets or returns default options for the JSON.load method.
+  # Initially:
+  #   opts = JSON.load_default_options
+  #   opts # => {:max_nesting=>false, :allow_nan=>true, :allow_blank=>true, :create_additions=>true}
+  deprecated_singleton_attr_accessor :load_default_options
+
+  @load_default_options = {
+    :allow_nan        => true,
+    :allow_blank      => true,
+    :create_additions => nil,
+  }
+  # :call-seq:
+  #   JSON.unsafe_load(source, proc = nil, options = {}) -> object
+  #
+  # Returns the Ruby objects created by parsing the given +source+.
+  #
+  # BEWARE: This method is meant to serialise data from trusted user input,
+  # like from your own database server or clients under your control, it could
+  # be dangerous to allow untrusted users to pass JSON sources into it.
+  #
+  # - Argument +source+ must be, or be convertible to, a \String:
+  #   - If +source+ responds to instance method +to_str+,
+  #     <tt>source.to_str</tt> becomes the source.
+  #   - If +source+ responds to instance method +to_io+,
+  #     <tt>source.to_io.read</tt> becomes the source.
+  #   - If +source+ responds to instance method +read+,
+  #     <tt>source.read</tt> becomes the source.
+  #   - If both of the following are true, source becomes the \String <tt>'null'</tt>:
+  #     - Option +allow_blank+ specifies a truthy value.
+  #     - The source, as defined above, is +nil+ or the empty \String <tt>''</tt>.
+  #   - Otherwise, +source+ remains the source.
+  # - Argument +proc+, if given, must be a \Proc that accepts one argument.
+  #   It will be called recursively with each result (depth-first order).
+  #   See details below.
+  # - Argument +opts+, if given, contains a \Hash of options for the parsing.
+  #   See {Parsing Options}[#module-JSON-label-Parsing+Options].
+  #   The default options can be changed via method JSON.unsafe_load_default_options=.
+  #
+  # ---
+  #
+  # When no +proc+ is given, modifies +source+ as above and returns the result of
+  # <tt>parse(source, opts)</tt>;  see #parse.
+  #
+  # Source for following examples:
+  #   source = <<~JSON
+  #     {
+  #       "name": "Dave",
+  #       "age" :40,
+  #       "hats": [
+  #         "Cattleman's",
+  #         "Panama",
+  #         "Tophat"
+  #       ]
+  #     }
+  #   JSON
+  #
+  # Load a \String:
+  #   ruby = JSON.unsafe_load(source)
+  #   ruby # => {"name"=>"Dave", "age"=>40, "hats"=>["Cattleman's", "Panama", "Tophat"]}
+  #
+  # Load an \IO object:
+  #   require 'stringio'
+  #   object = JSON.unsafe_load(StringIO.new(source))
+  #   object # => {"name"=>"Dave", "age"=>40, "hats"=>["Cattleman's", "Panama", "Tophat"]}
+  #
+  # Load a \File object:
+  #   path = 't.json'
+  #   File.write(path, source)
+  #   File.open(path) do |file|
+  #     JSON.unsafe_load(file)
+  #   end # => {"name"=>"Dave", "age"=>40, "hats"=>["Cattleman's", "Panama", "Tophat"]}
+  #
+  # ---
+  #
+  # When +proc+ is given:
+  # - Modifies +source+ as above.
+  # - Gets the +result+ from calling <tt>parse(source, opts)</tt>.
+  # - Recursively calls <tt>proc(result)</tt>.
+  # - Returns the final result.
+  #
+  # Example:
+  #   require 'json'
+  #
+  #   # Some classes for the example.
+  #   class Base
+  #     def initialize(attributes)
+  #       @attributes = attributes
+  #     end
+  #   end
+  #   class User    < Base; end
+  #   class Account < Base; end
+  #   class Admin   < Base; end
+  #   # The JSON source.
+  #   json = <<-EOF
+  #   {
+  #     "users": [
+  #         {"type": "User", "username": "jane", "email": "jane@example.com"},
+  #         {"type": "User", "username": "john", "email": "john@example.com"}
+  #     ],
+  #     "accounts": [
+  #         {"account": {"type": "Account", "paid": true, "account_id": "1234"}},
+  #         {"account": {"type": "Account", "paid": false, "account_id": "1235"}}
+  #     ],
+  #     "admins": {"type": "Admin", "password": "0wn3d"}
+  #   }
+  #   EOF
+  #   # Deserializer method.
+  #   def deserialize_obj(obj, safe_types = %w(User Account Admin))
+  #     type = obj.is_a?(Hash) && obj["type"]
+  #     safe_types.include?(type) ? Object.const_get(type).new(obj) : obj
+  #   end
+  #   # Call to JSON.unsafe_load
+  #   ruby = JSON.unsafe_load(json, proc {|obj|
+  #     case obj
+  #     when Hash
+  #       obj.each {|k, v| obj[k] = deserialize_obj v }
+  #     when Array
+  #       obj.map! {|v| deserialize_obj v }
+  #     end
+  #   })
+  #   pp ruby
+  # Output:
+  #   {"users"=>
+  #      [#<User:0x00000000064c4c98
+  #        @attributes=
+  #          {"type"=>"User", "username"=>"jane", "email"=>"jane@example.com"}>,
+  #        #<User:0x00000000064c4bd0
+  #        @attributes=
+  #          {"type"=>"User", "username"=>"john", "email"=>"john@example.com"}>],
+  #    "accounts"=>
+  #      [{"account"=>
+  #          #<Account:0x00000000064c4928
+  #          @attributes={"type"=>"Account", "paid"=>true, "account_id"=>"1234"}>},
+  #       {"account"=>
+  #          #<Account:0x00000000064c4680
+  #          @attributes={"type"=>"Account", "paid"=>false, "account_id"=>"1235"}>}],
+  #    "admins"=>
+  #      #<Admin:0x00000000064c41f8
+  #      @attributes={"type"=>"Admin", "password"=>"0wn3d"}>}
+  #
+  def unsafe_load(source, proc = nil, options = nil)
+    opts = if options.nil?
+      _unsafe_load_default_options
+    else
+      _unsafe_load_default_options.merge(options)
+    end
+
+    unless source.is_a?(String)
+      if source.respond_to? :to_str
+        source = source.to_str
+      elsif source.respond_to? :to_io
+        source = source.to_io.read
+      elsif source.respond_to?(:read)
+        source = source.read
+      end
+    end
+
+    if opts[:allow_blank] && (source.nil? || source.empty?)
+      source = 'null'
+    end
+    result = parse(source, opts)
+    recurse_proc(result, &proc) if proc
+    result
+  end
+
+  # :call-seq:
+  #   JSON.load(source, proc = nil, options = {}) -> object
+  #
+  # Returns the Ruby objects created by parsing the given +source+.
+  #
+  # BEWARE: This method is meant to serialise data from trusted user input,
+  # like from your own database server or clients under your control, it could
+  # be dangerous to allow untrusted users to pass JSON sources into it.
+  # If you must use it, use JSON.unsafe_load instead to make it clear.
+  #
+  # Since JSON version 2.8.0, `load` emits a deprecation warning when a
+  # non native type is deserialized, without `create_additions` being explicitly
+  # enabled, and in JSON version 3.0, `load` will have `create_additions` disabled
+  # by default.
+  #
+  # - Argument +source+ must be, or be convertible to, a \String:
+  #   - If +source+ responds to instance method +to_str+,
+  #     <tt>source.to_str</tt> becomes the source.
+  #   - If +source+ responds to instance method +to_io+,
+  #     <tt>source.to_io.read</tt> becomes the source.
+  #   - If +source+ responds to instance method +read+,
+  #     <tt>source.read</tt> becomes the source.
+  #   - If both of the following are true, source becomes the \String <tt>'null'</tt>:
+  #     - Option +allow_blank+ specifies a truthy value.
+  #     - The source, as defined above, is +nil+ or the empty \String <tt>''</tt>.
+  #   - Otherwise, +source+ remains the source.
+  # - Argument +proc+, if given, must be a \Proc that accepts one argument.
+  #   It will be called recursively with each result (depth-first order).
+  #   See details below.
+  # - Argument +opts+, if given, contains a \Hash of options for the parsing.
+  #   See {Parsing Options}[#module-JSON-label-Parsing+Options].
+  #   The default options can be changed via method JSON.load_default_options=.
+  #
+  # ---
+  #
+  # When no +proc+ is given, modifies +source+ as above and returns the result of
+  # <tt>parse(source, opts)</tt>;  see #parse.
+  #
+  # Source for following examples:
+  #   source = <<~JSON
+  #     {
+  #       "name": "Dave",
+  #       "age" :40,
+  #       "hats": [
+  #         "Cattleman's",
+  #         "Panama",
+  #         "Tophat"
+  #       ]
+  #     }
+  #   JSON
+  #
+  # Load a \String:
+  #   ruby = JSON.load(source)
+  #   ruby # => {"name"=>"Dave", "age"=>40, "hats"=>["Cattleman's", "Panama", "Tophat"]}
+  #
+  # Load an \IO object:
+  #   require 'stringio'
+  #   object = JSON.load(StringIO.new(source))
+  #   object # => {"name"=>"Dave", "age"=>40, "hats"=>["Cattleman's", "Panama", "Tophat"]}
+  #
+  # Load a \File object:
+  #   path = 't.json'
+  #   File.write(path, source)
+  #   File.open(path) do |file|
+  #     JSON.load(file)
+  #   end # => {"name"=>"Dave", "age"=>40, "hats"=>["Cattleman's", "Panama", "Tophat"]}
+  #
+  # ---
+  #
+  # When +proc+ is given:
+  # - Modifies +source+ as above.
+  # - Gets the +result+ from calling <tt>parse(source, opts)</tt>.
+  # - Recursively calls <tt>proc(result)</tt>.
+  # - Returns the final result.
+  #
+  # Example:
+  #   require 'json'
+  #
+  #   # Some classes for the example.
+  #   class Base
+  #     def initialize(attributes)
+  #       @attributes = attributes
+  #     end
+  #   end
+  #   class User    < Base; end
+  #   class Account < Base; end
+  #   class Admin   < Base; end
+  #   # The JSON source.
+  #   json = <<-EOF
+  #   {
+  #     "users": [
+  #         {"type": "User", "username": "jane", "email": "jane@example.com"},
+  #         {"type": "User", "username": "john", "email": "john@example.com"}
+  #     ],
+  #     "accounts": [
+  #         {"account": {"type": "Account", "paid": true, "account_id": "1234"}},
+  #         {"account": {"type": "Account", "paid": false, "account_id": "1235"}}
+  #     ],
+  #     "admins": {"type": "Admin", "password": "0wn3d"}
+  #   }
+  #   EOF
+  #   # Deserializer method.
+  #   def deserialize_obj(obj, safe_types = %w(User Account Admin))
+  #     type = obj.is_a?(Hash) && obj["type"]
+  #     safe_types.include?(type) ? Object.const_get(type).new(obj) : obj
+  #   end
+  #   # Call to JSON.load
+  #   ruby = JSON.load(json, proc {|obj|
+  #     case obj
+  #     when Hash
+  #       obj.each {|k, v| obj[k] = deserialize_obj v }
+  #     when Array
+  #       obj.map! {|v| deserialize_obj v }
+  #     end
+  #   })
+  #   pp ruby
+  # Output:
+  #   {"users"=>
+  #      [#<User:0x00000000064c4c98
+  #        @attributes=
+  #          {"type"=>"User", "username"=>"jane", "email"=>"jane@example.com"}>,
+  #        #<User:0x00000000064c4bd0
+  #        @attributes=
+  #          {"type"=>"User", "username"=>"john", "email"=>"john@example.com"}>],
+  #    "accounts"=>
+  #      [{"account"=>
+  #          #<Account:0x00000000064c4928
+  #          @attributes={"type"=>"Account", "paid"=>true, "account_id"=>"1234"}>},
+  #       {"account"=>
+  #          #<Account:0x00000000064c4680
+  #          @attributes={"type"=>"Account", "paid"=>false, "account_id"=>"1235"}>}],
+  #    "admins"=>
+  #      #<Admin:0x00000000064c41f8
+  #      @attributes={"type"=>"Admin", "password"=>"0wn3d"}>}
+  #
+  def load(source, proc = nil, options = nil)
+    opts = if options.nil?
+      _load_default_options
+    else
+      _load_default_options.merge(options)
+    end
+
+    unless source.is_a?(String)
+      if source.respond_to? :to_str
+        source = source.to_str
+      elsif source.respond_to? :to_io
+        source = source.to_io.read
+      elsif source.respond_to?(:read)
+        source = source.read
+      end
+    end
+
+    if opts[:allow_blank] && (source.nil? || source.empty?)
+      source = 'null'
+    end
+
+    if proc
+      opts = opts.dup
+      opts[:on_load] = proc.to_proc
+    end
+
+    parse(source, opts)
+  end
+
+  # Sets or returns the default options for the JSON.dump method.
+  # Initially:
+  #   opts = JSON.dump_default_options
+  #   opts # => {:max_nesting=>false, :allow_nan=>true}
+  deprecated_singleton_attr_accessor :dump_default_options
+  @dump_default_options = {
+    :max_nesting => false,
+    :allow_nan   => true,
+  }
+
+  # :call-seq:
+  #   JSON.dump(obj, io = nil, limit = nil)
+  #
+  # Dumps +obj+ as a \JSON string, i.e. calls generate on the object and returns the result.
+  #
+  # The default options can be changed via method JSON.dump_default_options.
+  #
+  # - Argument +io+, if given, should respond to method +write+;
+  #   the \JSON \String is written to +io+, and +io+ is returned.
+  #   If +io+ is not given, the \JSON \String is returned.
+  # - Argument +limit+, if given, is passed to JSON.generate as option +max_nesting+.
+  #
+  # ---
+  #
+  # When argument +io+ is not given, returns the \JSON \String generated from +obj+:
+  #   obj = {foo: [0, 1], bar: {baz: 2, bat: 3}, bam: :bad}
+  #   json = JSON.dump(obj)
+  #   json # => "{\"foo\":[0,1],\"bar\":{\"baz\":2,\"bat\":3},\"bam\":\"bad\"}"
+  #
+  # When argument +io+ is given, writes the \JSON \String to +io+ and returns +io+:
+  #   path = 't.json'
+  #   File.open(path, 'w') do |file|
+  #     JSON.dump(obj, file)
+  #   end # => #<File:t.json (closed)>
+  #   puts File.read(path)
+  # Output:
+  #   {"foo":[0,1],"bar":{"baz":2,"bat":3},"bam":"bad"}
+  def dump(obj, anIO = nil, limit = nil, kwargs = nil)
+    if kwargs.nil?
+      if limit.nil?
+        if anIO.is_a?(Hash)
+          kwargs = anIO
+          anIO = nil
+        end
+      elsif limit.is_a?(Hash)
+        kwargs = limit
+        limit = nil
+      end
+    end
+
+    unless anIO.nil?
+      if anIO.respond_to?(:to_io)
+        anIO = anIO.to_io
+      elsif limit.nil? && !anIO.respond_to?(:write)
+        anIO, limit = nil, anIO
+      end
+    end
+
+    opts = JSON._dump_default_options
+    opts = opts.merge(:max_nesting => limit) if limit
+    opts = opts.merge(kwargs) if kwargs
+
+    begin
+      State.generate(obj, opts, anIO)
+    rescue JSON::NestingError
+      raise ArgumentError, "exceed depth limit"
+    end
+  end
+
+  # :stopdoc:
+  # All these were meant to be deprecated circa 2009, but were just set as undocumented
+  # so usage still exist in the wild.
+  def unparse(...)
+    if RUBY_VERSION >= "3.0"
+      warn "JSON.unparse is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1, category: :deprecated
+    else
+      warn "JSON.unparse is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1
+    end
+    generate(...)
+  end
+  module_function :unparse
+
+  def fast_unparse(...)
+    if RUBY_VERSION >= "3.0"
+      warn "JSON.fast_unparse is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1, category: :deprecated
+    else
+      warn "JSON.fast_unparse is deprecated and will be removed in json 3.0.0, just use JSON.generate", uplevel: 1
+    end
+    generate(...)
+  end
+  module_function :fast_unparse
+
+  def pretty_unparse(...)
+    if RUBY_VERSION >= "3.0"
+      warn "JSON.pretty_unparse is deprecated and will be removed in json 3.0.0, just use JSON.pretty_generate", uplevel: 1, category: :deprecated
+    else
+      warn "JSON.pretty_unparse is deprecated and will be removed in json 3.0.0, just use JSON.pretty_generate", uplevel: 1
+    end
+    pretty_generate(...)
+  end
+  module_function :fast_unparse
+
+  def restore(...)
+    if RUBY_VERSION >= "3.0"
+      warn "JSON.restore is deprecated and will be removed in json 3.0.0, just use JSON.load", uplevel: 1, category: :deprecated
+    else
+      warn "JSON.restore is deprecated and will be removed in json 3.0.0, just use JSON.load", uplevel: 1
+    end
+    load(...)
+  end
+  module_function :restore
+
+  class << self
+    private
+
+    def const_missing(const_name)
+      case const_name
+      when :PRETTY_STATE_PROTOTYPE
+        if RUBY_VERSION >= "3.0"
+          warn "JSON::PRETTY_STATE_PROTOTYPE is deprecated and will be removed in json 3.0.0, just use JSON.pretty_generate", uplevel: 1, category: :deprecated
+        else
+          warn "JSON::PRETTY_STATE_PROTOTYPE is deprecated and will be removed in json 3.0.0, just use JSON.pretty_generate", uplevel: 1
+        end
+        state.new(PRETTY_GENERATE_OPTIONS)
+      else
+        super
+      end
+    end
+  end
+  # :startdoc:
+
+  # JSON::Coder holds a parser and generator configuration.
+  #
+  #   module MyApp
+  #     JSONC_CODER = JSON::Coder.new(
+  #       allow_trailing_comma: true
+  #     )
+  #   end
+  #
+  #   MyApp::JSONC_CODER.load(document)
+  #
+  class Coder
+    # :call-seq:
+    #   JSON.new(options = nil, &block)
+    #
+    # Argument +options+, if given, contains a \Hash of options for both parsing and generating.
+    # See {Parsing Options}[#module-JSON-label-Parsing+Options], and {Generating Options}[#module-JSON-label-Generating+Options].
+    #
+    # For generation, the <tt>strict: true</tt> option is always set. When a Ruby object with no native \JSON counterpart is
+    # encoutered, the block provided to the initialize method is invoked, and must return a Ruby object that has a native
+    # \JSON counterpart:
+    #
+    #  module MyApp
+    #    API_JSON_CODER = JSON::Coder.new do |object|
+    #      case object
+    #      when Time
+    #        object.iso8601(3)
+    #      else
+    #        object # Unknown type, will raise
+    #      end
+    #    end
+    #  end
+    #
+    #  puts MyApp::API_JSON_CODER.dump(Time.now.utc) # => "2025-01-21T08:41:44.286Z"
+    #
+    def initialize(options = nil, &as_json)
+      if options.nil?
+        options = { strict: true }
+      else
+        options = options.dup
+        options[:strict] = true
+      end
+      options[:as_json] = as_json if as_json
+
+      @state = State.new(options).freeze
+      @parser_config = Ext::Parser::Config.new(ParserOptions.prepare(options))
+    end
+
+    # call-seq:
+    #   dump(object) -> String
+    #   dump(object, io) -> io
+    #
+    # Serialize the given object into a \JSON document.
+    def dump(object, io = nil)
+      @state.generate_new(object, io)
+    end
+    alias_method :generate, :dump
+
+    # call-seq:
+    #   load(string) -> Object
+    #
+    # Parse the given \JSON document and return an equivalent Ruby object.
+    def load(source)
+      @parser_config.parse(source)
+    end
+    alias_method :parse, :load
+
+    # call-seq:
+    #   load(path) -> Object
+    #
+    # Parse the given \JSON document and return an equivalent Ruby object.
+    def load_file(path)
+      load(File.read(path, encoding: Encoding::UTF_8))
+    end
+  end
+end
+
+module ::Kernel
+  private
+
+  # Outputs _objs_ to STDOUT as JSON strings in the shortest form, that is in
+  # one line.
+  def j(*objs)
+    if RUBY_VERSION >= "3.0"
+      warn "Kernel#j is deprecated and will be removed in json 3.0.0", uplevel: 1, category: :deprecated
+    else
+      warn "Kernel#j is deprecated and will be removed in json 3.0.0", uplevel: 1
+    end
+
+    objs.each do |obj|
+      puts JSON.generate(obj, :allow_nan => true, :max_nesting => false)
+    end
+    nil
+  end
+
+  # Outputs _objs_ to STDOUT as JSON strings in a pretty format, with
+  # indentation and over many lines.
+  def jj(*objs)
+    if RUBY_VERSION >= "3.0"
+      warn "Kernel#jj is deprecated and will be removed in json 3.0.0", uplevel: 1, category: :deprecated
+    else
+      warn "Kernel#jj is deprecated and will be removed in json 3.0.0", uplevel: 1
+    end
+
+    objs.each do |obj|
+      puts JSON.pretty_generate(obj, :allow_nan => true, :max_nesting => false)
+    end
+    nil
+  end
+
+  # If _object_ is string-like, parse the string and return the parsed result as
+  # a Ruby data structure. Otherwise, generate a JSON text from the Ruby data
+  # structure object and return it.
+  #
+  # The _opts_ argument is passed through to generate/parse respectively. See
+  # generate and parse for their documentation.
+  def JSON(object, opts = nil)
+    JSON[object, opts]
+  end
+end