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template_main.go
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/
template_main.go
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package gen2
import (
"strconv"
"strings"
"text/template"
"github.com/bitwormhole/starter-configen/configen3/data/model"
"github.com/bitwormhole/starter-configen/configen3/mark"
)
type mainTemplate interface {
// CreateTemplate(ctx *gen2Context) (string, error)
Template
}
type mainTemplateData struct {
PackageShortName string
ImportListItems string
ComItemsInConfigFunc string
ComItemsAfterConfigFunc string
}
type mainTemplateImpl struct {
context *gen2Context
templ *template.Template
data mainTemplateData
}
func (inst *mainTemplateImpl) init(ctx *gen2Context) mainTemplate {
fm := make(template.FuncMap)
// fm[ "" ] = func () { }
inst.context = ctx
inst.templ = ctx.loadTemplate("main.template", fm)
return inst
}
func (inst *mainTemplateImpl) buildImportListInner() string {
builder := strings.Builder{}
items := inst.context.importsBuilder.Create()
if items == nil {
return ""
}
for _, item := range items {
if item.Path == "" {
continue
}
builder.WriteString(mark.TAB)
builder.WriteString(item.Alias)
builder.WriteString(mark.SPACE)
builder.WriteString(mark.QUOTE2)
builder.WriteString(item.Path)
builder.WriteString(mark.QUOTE2)
builder.WriteString(mark.NL)
}
return builder.String()
}
func (inst *mainTemplateImpl) checkComInfo(info *ComInfo, index int) error {
id := info.ComID
if id == "" {
id = "com" + strconv.Itoa(index) + "-" + info.InstanceStructName
info.ComID = id
}
return nil
}
func (inst *mainTemplateImpl) buildComItems(source *model.GoSource) (string, string, error) {
ctx := inst.context
tmp1 := ctx.templateFactory.createComItemInConfigFuncTemplate(ctx)
tmp2 := ctx.templateFactory.createComItemAfterConfigFuncTemplate(ctx)
builder1 := &strings.Builder{}
builder2 := &strings.Builder{}
list := source.StructList
for index, item := range list {
info := &ComInfo{}
err := info.init(item)
if err != nil {
return "", "", err
}
err = inst.checkComInfo(info, index)
if err != nil {
return "", "", err
}
str1, err := tmp1.BuildComponent(info)
if err != nil {
return "", "", err
}
builder1.WriteString(str1)
builder1.WriteString(mark.NL)
str2, err := tmp2.BuildComponent(info)
if err != nil {
return "", "", err
}
builder2.WriteString(str2)
builder2.WriteString(mark.NL)
}
return builder1.String(), builder2.String(), nil
}
func (inst *mainTemplateImpl) Build(source *model.GoSource) (string, error) {
comItemsInFn, comItemsAfterFn, err := inst.buildComItems(source)
if err != nil {
return "", err
}
data := &inst.data
data.PackageShortName = source.Package.Alias
data.ImportListItems = inst.buildImportListInner()
data.ComItemsInConfigFunc = comItemsInFn
data.ComItemsAfterConfigFunc = comItemsAfterFn
str, err := executeTemplate(inst.templ, data)
if err != nil {
return "", err
}
str = "// (todo:gen2.template) " + mark.NL + str
return str, nil
}
func executeTemplate(templ *template.Template, params interface{}) (string, error) {
templ, err := templ.Clone()
if err != nil {
return "", err
}
builder := &strings.Builder{}
err = templ.Execute(builder, params)
if err != nil {
return "", err
}
return builder.String(), nil
}