1 files changed, 41 insertions, 0 deletions
diff --git a/lib/asn1kit/types/boolean.rb b/lib/asn1kit/types/boolean.rb
new file mode 100644
index 0000000..b8a1c73
--- /dev/null
+++ b/lib/asn1kit/types/boolean.rb
@@ -0,0 +1,41 @@
+# coding: ASCII-8BIT
+
+class ASN1Kit::Boolean < ASN1Kit::Type
+  asn1_tag :IMPLICIT, :UNIVERSAL, 1
+  asn1_alias "BOOLEAN"
+
+  def initialize(value)
+    self.value = value
+  end
+
+  def value
+    @value
+  end
+
+  def value=(value)
+    if value != true && value != false
+      raise TypeError, "illegal value for BOOLEAN: %p" % value
+    end
+    @value = value
+  end
+
+  def to_der
+    der_header(1) << (value ? "\xff" : "\x00")
+  end
+
+  def self.from_ber(ber)
+    content = check_ber_header(ber)
+    if content.bytesize != 1
+      raise EncodingError, "invalid content length for BOOLEAN"
+    end
+    new(content != "\x00")
+  end
+
+  def ==(other)
+    other.class <= ASN1Kit::Boolean && value == other.value
+  end
+
+  private def inspect_inner
+    @value ? "TRUE" : "FALSE"
+  end
+end