Make the fuchsia mojo/public repo the source of truth.

mojo/public/tools/bindings/generators/go_templates/struct.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 "runtime_type_macros.tmpl" as runtime_type_macros %}
-
-{% macro define(struct, typepkg, package, exported=True) %}
-type {{struct|name(exported)}} struct {
-{% for field in struct.fields %}
-        {{field|name(exported)}} {{field.kind|go_type}}
-{% endfor %}
-}
-
-{%- set type_name = struct|name(exported) %}
-{{runtime_type_macros.maybeWriteStaticMojomTypeAccessor(typepkg, struct)}}
-{{runtime_type_macros.maybeWriteMojomTypeAccessor(typepkg, struct, type_name)}}
-
-func (s *{{struct|name(exported)}}) Encode(encoder *bindings.Encoder) error {
-{% set HEADER_SIZE = 8 %}
-        encoder.StartStruct({{struct.versions[-1].num_bytes - HEADER_SIZE}}, {{struct.versions[-1].version}})
-{% for byte in struct.bytes %}
-{%   for packed_field in byte.packed_fields %}
-        {{encoding_macros.encode('s.'~packed_field.field|name(exported), packed_field.field.kind)|tab_indent()}}
-{%   endfor %}
-{% endfor %}
-        if err := encoder.Finish(); err != nil {
-                return err
-        }
-        return nil
-}
-
-var {{struct|name(False)}}_Versions []bindings.DataHeader = []bindings.DataHeader{
-{% for versionInfo in struct.versions %}
-        bindings.DataHeader{{'{'}}{{versionInfo.num_bytes}}, {{versionInfo.version}}{{'}'}},
-{% endfor %}
-}
-
-func (s *{{struct|name(exported)}}) Decode(decoder *bindings.Decoder) error {
-        header, err := decoder.StartStruct()
-        if err != nil {
-                return err
-        }
-        index := sort.Search(len({{struct|name(False)}}_Versions), func(i int) bool {
-                return {{struct|name(False)}}_Versions[i].ElementsOrVersion >= header.ElementsOrVersion
-        })
-        if index < len({{struct|name(False)}}_Versions) {
-                if {{struct|name(False)}}_Versions[index].ElementsOrVersion > header.ElementsOrVersion {
-                        index--
-                }
-                expectedSize := {{struct|name(False)}}_Versions[index].Size
-                if expectedSize != header.Size {
-                        return &bindings.ValidationError{bindings.UnexpectedStructHeader,
-                                fmt.Sprintf("invalid struct header size: should be %d, but was %d", expectedSize, header.Size),
-                        }
-                }
-        }
-{% for byte in struct.bytes %}
-{%   for packed_field in byte.packed_fields %}
-        if header.ElementsOrVersion >= {{packed_field.min_version}} {
-                {{encoding_macros.decode('s.'~packed_field.field|name(exported), packed_field.field.kind)|tab_indent(2)}}
-        }
-{%   endfor %}
-{% endfor %}
-        if err := decoder.Finish(); err != nil {
-                return err
-        }
-        return nil
-}
-
-{% endmacro %}