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go/src/infra/libs/git/child.go

Index: go/src/infra/libs/git/child.go
diff --git a/go/src/infra/libs/git/child.go b/go/src/infra/libs/git/child.go
new file mode 100644
index 0000000000000000000000000000000000000000..e78560ee63aafa2d964bea347c24829083ca2fe4
--- /dev/null
+++ b/go/src/infra/libs/git/child.go
@@ -0,0 +1,34 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package git
+
+import (
+	"fmt"
+)
+
+// Types ///////////////////////////////////////////////////////////////////////
+
+// Child is an entry in a Tree. It ties a Mode to an Object.
+type Child struct {
+	Object Object
+	Mode   Mode
+}
+
+// Constructors  ///////////////////////////////////////////////////////////////
+
+// NewEmptyChild returns a Child containing an EmptyObject of id.
+func NewEmptyChild(mode Mode, id Identifiable) (*Child, error) {
+	o, err := NewEmptyObjectErr(mode.Type(), id)
+	if err != nil {
+		return nil, err
+	}
+	return &Child{o, mode}, nil
+}
+
+// Member functions ////////////////////////////////////////////////////////////
+
+func (c Child) String() string {
+	return fmt.Sprintf("Child(%s, %s)", c.Object, c.Mode)
+}