From 69ffe616475e0e95c207d55d8fd3a7943ee5da38 Mon Sep 17 00:00:00 2001
From: Issac Trotts <issac.trotts@gmail.com>
Date: Tue, 1 Mar 2016 13:10:49 -0800
Subject: [PATCH 1/3] Add support for default methods

Default methods are included if "*" is in the tag or if there is no
tag.
---
 slicewriter.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/slicewriter.go b/slicewriter.go
index 9b10028..ac3243a 100644
--- a/slicewriter.go
+++ b/slicewriter.go
@@ -41,6 +41,8 @@ func (sw *SliceWriter) Write(w io.Writer, typ typewriter.Type) error {
 		return nil
 	}
 
+	tag.AddDefaultsIfNeeded(typ, templates)
+
 	if includeSortImplementation(tag.Values) {
 		s := `// Sort implementation is a modification of http://golang.org/pkg/sort/#Sort
 // Copyright 2009 The Go Authors. All rights reserved.
@@ -120,6 +122,13 @@ func (sw *SliceWriter) Write(w io.Writer, typ typewriter.Type) error {
 }
 
 func includeSortImplementation(values []typewriter.TagValue) bool {
+	// Don't include it if it's already included.
+	for _, v := range values {
+		if v.Name == "sortImplementation" {
+			return false
+		}
+	}
+
 	for _, v := range values {
 		if strings.HasPrefix(v.Name, "SortBy") {
 			return true
@@ -129,6 +138,13 @@ func includeSortImplementation(values []typewriter.TagValue) bool {
 }
 
 func includeSortInterface(values []typewriter.TagValue) bool {
+	// Don't include it if it's already included.
+	for _, v := range values {
+		if v.Name == "sortInterface" {
+			return false
+		}
+	}
+
 	reg := regexp.MustCompile(`^Sort(Desc)?$`)
 	for _, v := range values {
 		if reg.MatchString(v.Name) {

From 3999aae9dda62db712bc372ff5f29ddf49d6c9e4 Mon Sep 17 00:00:00 2001
From: Issac Trotts <issac.trotts@gmail.com>
Date: Tue, 1 Mar 2016 16:29:27 -0800
Subject: [PATCH 2/3] Add missing Ordered type constraint

---
 sortimplementation.go | 4 +++-
 sortinterface.go      | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/sortimplementation.go b/sortimplementation.go
index 1b2bf77..fffb15e 100644
--- a/sortimplementation.go
+++ b/sortimplementation.go
@@ -177,4 +177,6 @@ func quickSort{{.SliceName}}(rcv {{.SliceName}}, less func({{.Type}}, {{.Type}})
 		insertionSort{{.SliceName}}(rcv, less, a, b)
 	}
 }
-`}
+`,
+	TypeConstraint: typewriter.Constraint{Ordered: true},
+}
diff --git a/sortinterface.go b/sortinterface.go
index a267df4..4f6f089 100644
--- a/sortinterface.go
+++ b/sortinterface.go
@@ -14,4 +14,6 @@ func (rcv {{.SliceName}}) Less(i, j int) bool {
 func (rcv {{.SliceName}}) Swap(i, j int) {
 	rcv[i], rcv[j] = rcv[j], rcv[i]
 }
-`}
+`,
+	TypeConstraint: typewriter.Constraint{Ordered: true},
+}

From 72fb7206c611b1fdb2fe7fd10b10f4b5fe19315d Mon Sep 17 00:00:00 2001
From: Issac Trotts <issac.trotts@gmail.com>
Date: Tue, 1 Mar 2016 17:19:06 -0800
Subject: [PATCH 3/3] Bugfix: Omit slice tmpl when generating defaults

---
 slicewriter.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/slicewriter.go b/slicewriter.go
index ac3243a..95ad63a 100644
--- a/slicewriter.go
+++ b/slicewriter.go
@@ -41,7 +41,7 @@ func (sw *SliceWriter) Write(w io.Writer, typ typewriter.Type) error {
 		return nil
 	}
 
-	tag.AddDefaultsIfNeeded(typ, templates)
+	tag.AddDefaultsIfNeeded(typ, templates[1:])
 
 	if includeSortImplementation(tag.Values) {
 		s := `// Sort implementation is a modification of http://golang.org/pkg/sort/#Sort