| // Copyright 2016 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 templates |
| |
| import ( |
| "text/template" |
| ) |
| |
| const fieldEncodingTmplText = ` |
| {{- define "FieldEncodingTmpl" -}} |
| {{- $info := . -}} |
| {{- if and (not $info.IsUnion) $info.IsNullable -}} |
| if {{$info.Identifier}} == nil { |
| {{- if $info.IsPointer -}} |
| encoder.WriteNullPointer() |
| {{- else if or $info.IsInterfaceRequest $info.IsHandle -}} |
| encoder.WriteInvalidHandle() |
| {{- else if $info.IsInterface -}} |
| encoder.WriteInvalidInterface() |
| {{- end -}} |
| } else { |
| {{ template "NonNullableFieldEncodingTmpl" $info }} |
| } |
| {{- else -}} |
| {{ template "NonNullableFieldEncodingTmpl" $info }} |
| {{- end -}} |
| {{- end -}} |
| ` |
| |
| const nonNullableFieldEncodingTmplText = ` |
| {{- define "NonNullableFieldEncodingTmpl" -}} |
| {{- $info := . -}} |
| {{- if $info.IsPointer -}} |
| if err := encoder.WritePointer(); err != nil { |
| return err |
| } |
| {{end -}} |
| {{- if $info.IsSimple -}} |
| if err := encoder.{{$info.WriteFunction}}({{$info.Identifier}}); err != nil { |
| return err |
| } |
| {{- else if $info.IsEnum -}} |
| if err := encoder.WriteInt32(int32({{$info.Identifier}})); err != nil { |
| return err |
| } |
| {{- else if $info.IsHandle -}} |
| {{- if $info.IsNullable -}} |
| if err := encoder.WriteHandle(*({{$info.Identifier}})); err != nil { |
| {{- else -}} |
| if err := encoder.WriteHandle({{$info.Identifier}}); err != nil { |
| {{- end -}} |
| return err |
| } |
| {{- else if $info.IsStruct -}} |
| if err := {{$info.Identifier}}.Encode(encoder); err != nil { |
| return err |
| } |
| {{- else if $info.IsUnion -}} |
| {{- if $info.IsPointer -}} |
| encoder.StartNestedUnion() |
| {{end -}} |
| if {{$info.Identifier}} == nil { |
| {{- if $info.IsNullable -}} |
| encoder.WriteNullUnion() |
| {{- else -}} |
| return &bindings.ValidationError{bindings.UnexpectedNullUnion, "unexpected null union"} |
| {{- end -}} |
| } else { |
| if err := {{$info.Identifier}}.Encode(encoder); err != nil { |
| return err |
| } |
| } |
| {{- else if $info.IsInterface -}} |
| if err := encoder.{{$info.WriteFunction}}({{$info.Identifier}}.PassMessagePipe()); err != nil { |
| return err |
| } |
| {{- else if $info.IsArray -}} |
| {{ $elInfo := $info.ElementEncodingInfo -}} |
| encoder.StartArray(uint32(len({{$info.Identifier}})), {{$elInfo.BitSize}}) |
| for _, {{$elInfo.Identifier}} := range {{$info.Identifier}} { |
| {{ template "FieldEncodingTmpl" $elInfo }} |
| } |
| if err := encoder.Finish(); err != nil { |
| return err |
| } |
| {{- else if $info.IsMap -}} |
| {{ $keyInfo := $info.KeyEncodingInfo -}} |
| {{ $keyElId := $info.KeyEncodingInfo.ElementEncodingInfo.Identifier -}} |
| {{ $valueInfo := $info.ValueEncodingInfo -}} |
| {{ $valueElId := $info.ValueEncodingInfo.ElementEncodingInfo.Identifier -}} |
| encoder.StartMap() |
| { |
| var {{$keyInfo.Identifier}} {{$keyInfo.GoType}} |
| var {{$valueInfo.Identifier}} {{$valueInfo.GoType}} |
| for {{$keyElId}} := range {{$info.Identifier}} { |
| {{$keyInfo.Identifier}} = append({{$keyInfo.Identifier}}, {{$keyElId}}) |
| } |
| if encoder.Deterministic() { |
| bindings.SortMapKeys(&{{$keyInfo.Identifier}}) |
| } |
| for {{$keyElId}} := range {{$keyInfo.Identifier}} { |
| {{$valueInfo.Identifier}} = append({{$valueInfo.Identifier}}, {{$info.Identifier}}[{{$keyElId}}]) |
| } |
| {{ template "FieldEncodingTmpl" $keyInfo }} |
| {{ template "FieldEncodingTmpl" $valueInfo }} |
| } |
| if err := encoder.Finish(); err != nil { |
| return err |
| } |
| {{- end -}} |
| {{- end -}} |
| ` |
| |
| func initEncodingTemplates() { |
| template.Must(goFileTmpl.Parse(nonNullableFieldEncodingTmplText)) |
| template.Must(goFileTmpl.Parse(fieldEncodingTmplText)) |
| } |
