1 files changed, 29 insertions, 34 deletions

diff --git a/ext/json/lib/json/common.rb b/ext/json/lib/json/common.rb
index ea46896fcc..95098d3bb4 100644
--- a/ext/json/lib/json/common.rb
+++ b/ext/json/lib/json/common.rb
@@ -1,8 +1,12 @@
 #frozen_string_literal: false
 require 'json/version'
-require 'json/generic_object'
 
 module JSON
+  autoload :GenericObject, 'json/generic_object'
+
+  NOT_SET = Object.new.freeze
+  private_constant :NOT_SET
+
   class << self
     # :call-seq:
     #   JSON[object] -> new_array or new_string
@@ -295,19 +299,9 @@ module JSON
   #
   def generate(obj, opts = nil)
     if State === opts
-      state, opts = opts, nil
+      state = opts
     else
-      state = State.new
-    end
-    if opts
-      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
-      state = state.configure(opts)
+      state = State.new(opts)
     end
     state.generate(obj)
   end
@@ -334,19 +328,9 @@ module JSON
   #   JSON.fast_generate(a)
   def fast_generate(obj, opts = nil)
     if State === opts
-      state, opts = opts, nil
+      state = opts
     else
-      state = JSON.create_fast_state
-    end
-    if opts
-      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
-      state.configure(opts)
+      state = JSON.create_fast_state.configure(opts)
     end
     state.generate(obj)
   end
@@ -592,13 +576,13 @@ module JSON
     # Sets or returns the default options for the JSON.dump method.
     # Initially:
     #   opts = JSON.dump_default_options
-    #   opts # => {:max_nesting=>false, :allow_nan=>true, :escape_slash=>false}
+    #   opts # => {:max_nesting=>false, :allow_nan=>true, :script_safe=>false}
     attr_accessor :dump_default_options
   end
   self.dump_default_options = {
     :max_nesting => false,
     :allow_nan   => true,
-    :escape_slash => false,
+    :script_safe => false,
   }
 
   # :call-seq:
@@ -628,16 +612,18 @@ module JSON
   #   puts File.read(path)
   # Output:
   #   {"foo":[0,1],"bar":{"baz":2,"bat":3},"bam":"bad"}
-  def dump(obj, anIO = nil, limit = nil)
-    if anIO and limit.nil?
-      anIO = anIO.to_io if anIO.respond_to?(:to_io)
-      unless anIO.respond_to?(:write)
-        limit = anIO
-        anIO = nil
-      end
+  def dump(obj, anIO = nil, limit = nil, kwargs = nil)
+    io_limit_opt = [anIO, limit, kwargs].compact
+    kwargs = io_limit_opt.pop if io_limit_opt.last.is_a?(Hash)
+    anIO, limit = io_limit_opt
+    if anIO.respond_to?(:to_io)
+      anIO = anIO.to_io
+    elsif limit.nil? && !anIO.respond_to?(:write)
+      anIO, limit = nil, anIO
     end
     opts = JSON.dump_default_options
     opts = opts.merge(:max_nesting => limit) if limit
+    opts = merge_dump_options(opts, **kwargs) if kwargs
     result = generate(obj, opts)
     if anIO
       anIO.write result
@@ -653,6 +639,15 @@ module JSON
   def self.iconv(to, from, string)
     string.encode(to, from)
   end
+
+  def merge_dump_options(opts, strict: NOT_SET)
+    opts = opts.merge(strict: strict) if NOT_SET != strict
+    opts
+  end
+
+  class << self
+    private :merge_dump_options
+  end
 end
 
 module ::Kernel