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tmpl_enum.go
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/
tmpl_enum.go
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// Copyright 2015 The Vanadium 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 swift
import (
"bytes"
"log"
"v.io/x/ref/lib/vdl/compile"
)
const enumTmpl = `{{ .Doc }}///
/// Auto-generated from {{.VdlTypeName}}
{{ .AccessModifier }} enum {{ .Name }} : String, VdlEnum {
/// Vdl type for {@link {{ .Name }}}.
{{ .AccessModifier }} static let vdlTypeName = "{{ .VdlTypeName }}"
{{ range $index, $label := .EnumLabels }}
{{ $label.Doc }}
case {{ $label.Name }} = "{{ $label.Name }}"
{{ end }}
{{ .AccessModifier }} var vdlName: String {
return self.rawValue
}
{{ .AccessModifier }} var description: String {
return vdlName
}
{{ .AccessModifier }} var debugDescription: String {
return "{{ .Name }}.\(description)"
}
}`
type enumLabel struct {
Doc string
Name string
}
// genSwiftEnumFile generates the Swift class file for the provided user-defined enum type.
func genSwiftEnumTdef(tdef *compile.TypeDef, ctx *swiftContext) string {
labels := make([]enumLabel, tdef.Type.NumEnumLabel())
for i := 0; i < tdef.Type.NumEnumLabel(); i++ {
labels[i] = enumLabel{
Doc: swiftDoc(tdef.LabelDoc[i], tdef.LabelDocSuffix[i]),
Name: tdef.Type.EnumLabel(i),
}
}
data := struct {
AccessModifier string
Doc string
EnumLabels []enumLabel
Name string
VdlTypeName string
VdlTypeString string
}{
AccessModifier: swiftAccessModifier(tdef),
Doc: swiftDoc(tdef.Doc, tdef.DocSuffix),
EnumLabels: labels,
Name: ctx.swiftTypeName(tdef),
VdlTypeName: tdef.Type.Name(),
VdlTypeString: tdef.Type.String(),
}
var buf bytes.Buffer
err := parseTmpl("swift enum", enumTmpl).Execute(&buf, data)
if err != nil {
log.Fatalf("vdl: couldn't execute enum template: %v", err)
}
return formatSwiftCode(buf.String())
}