Add support for BigDecimal numbers

3 files changed, 27 insertions, 3 deletions

diff --git a/ext/json/ext/parser/parser.c b/ext/json/ext/parser/parser.c
index d1d14c7..4ea663c 100644
--- a/ext/json/ext/parser/parser.c
+++ b/ext/json/ext/parser/parser.c
@@ -1618,9 +1618,6 @@ static VALUE convert_encoding(VALUE source)
  *   defaults to true.
  * * *object_class*: Defaults to Hash
  * * *array_class*: Defaults to Array
- * * *quirks_mode*: Enables quirks_mode for parser, that is for example
- *   parsing single JSON values instead of documents is possible.
- *
  */
 static VALUE cParser_initialize(int argc, VALUE *argv, VALUE self)
 {
diff --git a/lib/json/add/bigdecimal.rb b/lib/json/add/bigdecimal.rb
new file mode 100644
index 0000000..4aafe53
--- /dev/null
+++ b/lib/json/add/bigdecimal.rb
@@ -0,0 +1,21 @@
+unless defined?(::JSON::JSON_LOADED) and ::JSON::JSON_LOADED
+  require 'json'
+end
+defined?(::BigDecimal) or require 'bigdecimal'
+
+class BigDecimal
+  def self.json_create(object)
+    BigDecimal._load object['b']
+  end
+
+  def as_json(*)
+    {
+      JSON.create_id => self.class.name,
+      'b'            => _dump,
+    }
+  end
+
+  def to_json(*)
+    as_json.to_json
+  end
+end
diff --git a/tests/test_json_addition.rb b/tests/test_json_addition.rb
index 9f578a4..b9cc6d1 100755
--- a/tests/test_json_addition.rb
+++ b/tests/test_json_addition.rb
@@ -6,6 +6,7 @@ require File.join(File.dirname(__FILE__), 'setup_variant')
 require 'json/add/core'
 require 'json/add/complex'
 require 'json/add/rational'
+require 'json/add/bigdecimal'
 require 'date'
 
 class TC_JSONAddition < Test::Unit::TestCase
@@ -171,4 +172,9 @@ class TC_JSONAddition < Test::Unit::TestCase
     assert_equal Rational(2, 9), JSON(JSON(Rational(2, 9)))
     assert_equal Complex(2, 9), JSON(JSON(Complex(2, 9)))
   end
+
+  def test_bigdecimal
+    assert_equal BigDecimal('3.141', 23), JSON(JSON(BigDecimal('3.141', 23)))
+    assert_equal BigDecimal('3.141', 666), JSON(JSON(BigDecimal('3.141', 666)))
+  end
 end