Generate Mojom Types in Go

mojo/public/tools/bindings/generators/go_templates/union.tmpl

 // Copyright 2015 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.
 
 {% import "encoding_macros.tmpl" as encoding_macros %}
+{% import "mojom_type_macros.tmpl" as mojom_type_macros %}
+{% import "mojom_util_macros.tmpl" as util %}
 
-
-{% macro define(union, exported=True) %}
+{% macro define(union, typepkg, package, exported=True) %}
 type {{union|name(exported)}} interface {
         Tag() uint32
         Interface() interface{}
         __Reflect(__{{union|name(exported)}}Reflect)
         Encode(encoder *bindings.Encoder) error
 }
 
 type __{{union|name(exported)}}Reflect struct {
 {%   for field in union.fields %}
         {{field|name(exported)}} {{field.kind|go_type}}
@@ skipping 51 matching lines @@
         return nil
 }
 
 func (u *{{struct_name}}) decodeInternal(decoder *bindings.Decoder) error {
         {{decode_union_field('u.Value', field.kind)|tab_indent()}}
         return nil
 }
 
 {%   endfor %}
 
+// String names and labels used by the MojomUnion types.
+var (
+  unionName_{{union|name}} = "{{union|name}}"
+{% for field in union.fields %}
+  unionFieldName_{{union|name}}_{{field|name}} = "{{field|name}}"
+{% endfor %}
+)
+
+func {{util.typeName(union, typepkg, package)}}() {{typepkg}}MojomUnion {
+        return {{ mojom_type_macros.writeMojomType(typepkg, union, package, exported) }}
+} 
+
 {% endmacro %}
 
 {% macro encode_union_field(value, kind) %}
 {%   if kind|is_union %}
 if err := encoder.WritePointer(); err != nil {
         return err
 }
 
 encoder.StartNestedUnion()
 {{encoding_macros.encode(value, kind)}}
@@ skipping 21 matching lines @@
         return err
 }
 
 {{encoding_macros.decode(value, kind)}}
 
 decoder.Finish()
 {%   else %}
 {{encoding_macros.decode(value, kind)}}
 {%   endif %}
 {% endmacro %}