fix bug with node length of conflicting map entries

bugfix_test.go

@@ -0,0 +1,24 @@
+package notation
+
+import "testing"
+
+func TestMapWrapping(t *testing.T) {
+	const expect = `map[*interface{}]interface{}{
+	*interface{}(string("foo")): interface{}(bool(true)),
+	*interface{}(string("foo")): interface{}(bool(true)),
+}`
+
+	ifpointer := func(v interface{}) *interface{} {
+		return &v
+	}
+
+	m := map[*interface{}]interface{}{
+		ifpointer("foo"): true,
+		ifpointer("foo"): true,
+	}
+
+	s := Sprintwv(m)
+	if s != expect {
+		t.Fatalf("expected: %s, got: %s", expect, s)
+	}
+}

notation.go

@@ -24,6 +24,7 @@ const (
 	skipTypes
 	allTypes
 	randomMaps
+	pointerValues
 )
 
 type wrapLen struct {

reflect.go

@@ -144,9 +144,10 @@ func reflectMap(o opts, p *pending, r reflect.Value) node {
 	sn := make(map[string]node)
 	for _, key := range r.MapKeys() {
 		kn := reflectValue(itemOpts, p, key)
+		knExt := reflectValue(allTypes|pointerValues, p, key)
 		var b bytes.Buffer
 		wr := writer{w: &b}
-		fprint(&wr, 0, kn)
+		fprint(&wr, 0, knExt)
 		skey := b.String()
 		skeys = append(skeys, skey)
 		sv[skey] = key
@@ -183,9 +184,13 @@ func reflectPointer(o opts, p *pending, r reflect.Value) node {
 		return e
 	}
 
+	if o&pointerValues == 0 {
 		return nodeOf("*", e)
 	}
 
+	return nodeOf("*(", r.Pointer(), ")", e)
+}
+
 func reflectList(o opts, p *pending, r reflect.Value) node {
 	if r.IsNil() {
 		return reflectNil(o, true, r)