From bc498ff65006ccf27db80dcf1f313f60aa22ca36 Mon Sep 17 00:00:00 2001
From: Bertrand Lorentz <bertrand.lorentz@gmail.com>
Date: Thu, 10 Oct 2013 16:18:36 +0200
Subject: [PATCH] generator: Add support for suppressing the Equals(T) method
 in structs

Similarly to what exists for GetHashCode, add a noequals attribute to
indicate we don't want the default Equals implementation.
---
 gapi.xsd                |  1 +
 generator/StructBase.cs | 15 +++++++++------
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/gapi.xsd b/gapi.xsd
index e0316c19e..7eae62f9a 100644
--- a/gapi.xsd
+++ b/gapi.xsd
@@ -77,6 +77,7 @@
         <xs:attribute name="cname" type="xs:string"/>
         <xs:attribute name="opaque" type="xs:boolean" use="optional"/>
         <xs:attribute name="hidden" type="xs:boolean" use="optional"/>
+        <xs:attribute name="noequals" type="xs:boolean" use="optional"/>
         <xs:attribute name="nohash" type="xs:boolean" use="optional"/>
     </xs:complexType>
 
diff --git a/generator/StructBase.cs b/generator/StructBase.cs
index 9288fc3a4..2953d4709 100644
--- a/generator/StructBase.cs
+++ b/generator/StructBase.cs
@@ -123,8 +123,6 @@ namespace GtkSharp.Generation {
 			StringBuilder hashcode = new StringBuilder ();
 			StringBuilder equals = new StringBuilder ();
 
-			sw.WriteLine ("\t\tpublic bool Equals ({0} other)", Name);
-			sw.WriteLine ("\t\t{");
 			hashcode.Append ("this.GetType ().FullName.GetHashCode ()");
 			equals.Append ("true");
 
@@ -156,15 +154,20 @@ namespace GtkSharp.Generation {
 					hashcode.Append (".GetHashCode ()");
 				}
 			}
-			sw.WriteLine ("\t\t\treturn {0};", equals.ToString ());
-			sw.WriteLine ("\t\t}");
-			sw.WriteLine ();
+
+			if (!Elem.GetAttributeAsBoolean ("noequals")) {
+				sw.WriteLine ("\t\tpublic bool Equals ({0} other)", Name);
+				sw.WriteLine ("\t\t{");
+				sw.WriteLine ("\t\t\treturn {0};", equals.ToString ());
+				sw.WriteLine ("\t\t}");
+				sw.WriteLine ();
+			}
 			sw.WriteLine ("\t\tpublic override bool Equals (object other)");
 			sw.WriteLine ("\t\t{");
 			sw.WriteLine ("\t\t\treturn other is {0} && Equals (({0}) other);", Name);
 			sw.WriteLine ("\t\t}");
 			sw.WriteLine ();
-			if (Elem.GetAttribute ("nohash") == "true")
+			if (Elem.GetAttributeAsBoolean ("nohash"))
 				return;
 			sw.WriteLine ("\t\tpublic override int GetHashCode ()");
 			sw.WriteLine ("\t\t{");