v0.0.294 migrate bfcodegen to templates
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@@ -1,6 +1,8 @@
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package bfcodegen
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import (
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"bytes"
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_ "embed"
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"errors"
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"fmt"
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"gogs.mikescher.com/BlackForestBytes/goext"
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@@ -14,6 +16,7 @@ import (
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"path/filepath"
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"regexp"
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"strings"
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"text/template"
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"time"
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)
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@@ -39,6 +42,9 @@ var rexEnumValueDef = rext.W(regexp.MustCompile(`^\s*(?P<name>[A-Za-z0-9_]+)\s+(
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var rexEnumChecksumConst = rext.W(regexp.MustCompile(`const ChecksumEnumGenerator = "(?P<cs>[A-Za-z0-9_]*)"`))
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//go:embed enum-generate.template
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var templateEnumGenerateText string
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func GenerateEnumSpecs(sourceDir string, destFile string) error {
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files, err := os.ReadDir(sourceDir)
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@@ -204,133 +210,32 @@ func processEnumFile(basedir string, fn string) ([]EnumDef, string, error) {
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}
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func fmtEnumOutput(cs string, enums []EnumDef, pkgname string) string {
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str := "// Code generated by enum-generate.go DO NOT EDIT.\n"
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str += "\n"
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str += "package " + pkgname + "\n"
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str += "\n"
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str += "import \"gogs.mikescher.com/BlackForestBytes/goext/langext\"" + "\n"
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str += "import \"gogs.mikescher.com/BlackForestBytes/goext/enums\"" + "\n"
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str += "\n"
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templ := template.New("enum-generate")
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str += "const ChecksumEnumGenerator = \"" + cs + "\" // GoExtVersion: " + goext.GoextVersion + "\n"
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str += "\n"
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templ = templ.Funcs(template.FuncMap{
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"boolToStr": func(b bool) string { return langext.Conditional(b, "true", "false") },
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"deref": func(v *string) string { return *v },
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"trimSpace": func(str string) string { return strings.TrimSpace(str) },
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"hasStr": func(v EnumDef) bool { return v.Type == "string" },
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"hasDescr": func(v EnumDef) bool {
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return langext.ArrAll(v.Values, func(val EnumDefVal) bool { return val.Description != nil })
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},
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})
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for _, enumdef := range enums {
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templ = template.Must(templ.Parse(templateEnumGenerateText))
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hasDescr := langext.ArrAll(enumdef.Values, func(val EnumDefVal) bool { return val.Description != nil })
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hasStr := enumdef.Type == "string"
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str += "// ================================ " + enumdef.EnumTypeName + " ================================" + "\n"
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str += "//" + "\n"
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str += "// File: " + enumdef.FileRelative + "\n"
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str += "// StringEnum: " + langext.Conditional(hasStr, "true", "false") + "\n"
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str += "// DescrEnum: " + langext.Conditional(hasDescr, "true", "false") + "\n"
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str += "//" + "\n"
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str += "" + "\n"
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str += "var __" + enumdef.EnumTypeName + "Values = []" + enumdef.EnumTypeName + "{" + "\n"
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for _, v := range enumdef.Values {
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str += " " + v.VarName + "," + "\n"
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}
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str += "}" + "\n"
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str += "" + "\n"
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if hasDescr {
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str += "var __" + enumdef.EnumTypeName + "Descriptions = map[" + enumdef.EnumTypeName + "]string{" + "\n"
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for _, v := range enumdef.Values {
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str += " " + v.VarName + ": \"" + strings.TrimSpace(*v.Description) + "\"," + "\n"
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}
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str += "}" + "\n"
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str += "" + "\n"
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}
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str += "var __" + enumdef.EnumTypeName + "Varnames = map[" + enumdef.EnumTypeName + "]string{" + "\n"
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for _, v := range enumdef.Values {
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str += " " + v.VarName + ": \"" + v.VarName + "\"," + "\n"
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}
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str += "}" + "\n"
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str += "" + "\n"
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str += "func (e " + enumdef.EnumTypeName + ") Valid() bool {" + "\n"
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str += " return langext.InArray(e, __" + enumdef.EnumTypeName + "Values)" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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str += "func (e " + enumdef.EnumTypeName + ") Values() []" + enumdef.EnumTypeName + " {" + "\n"
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str += " return __" + enumdef.EnumTypeName + "Values" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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str += "func (e " + enumdef.EnumTypeName + ") ValuesAny() []any {" + "\n"
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str += " return langext.ArrCastToAny(__" + enumdef.EnumTypeName + "Values)" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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str += "func (e " + enumdef.EnumTypeName + ") ValuesMeta() []enums.EnumMetaValue {" + "\n"
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str += " return " + enumdef.EnumTypeName + "ValuesMeta()"
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str += "}" + "\n"
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str += "" + "\n"
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if hasStr {
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str += "func (e " + enumdef.EnumTypeName + ") String() string {" + "\n"
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str += " return string(e)" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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}
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if hasDescr {
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str += "func (e " + enumdef.EnumTypeName + ") Description() string {" + "\n"
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str += " if d, ok := __" + enumdef.EnumTypeName + "Descriptions[e]; ok {" + "\n"
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str += " return d" + "\n"
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str += " }" + "\n"
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str += " return \"\"" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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}
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str += "func (e " + enumdef.EnumTypeName + ") VarName() string {" + "\n"
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str += " if d, ok := __" + enumdef.EnumTypeName + "Varnames[e]; ok {" + "\n"
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str += " return d" + "\n"
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str += " }" + "\n"
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str += " return \"\"" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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str += "func (e " + enumdef.EnumTypeName + ") Meta() enums.EnumMetaValue {" + "\n"
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if hasDescr {
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str += " return enums.EnumMetaValue{VarName: e.VarName(), Value: e, Description: langext.Ptr(e.Description())}"
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} else {
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str += " return enums.EnumMetaValue{VarName: e.VarName(), Value: e, Description: nil}"
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}
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str += "}" + "\n"
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str += "" + "\n"
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str += "func Parse" + enumdef.EnumTypeName + "(vv string) (" + enumdef.EnumTypeName + ", bool) {" + "\n"
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str += " for _, ev := range __" + enumdef.EnumTypeName + "Values {" + "\n"
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str += " if string(ev) == vv {" + "\n"
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str += " return ev, true" + "\n"
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str += " }" + "\n"
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str += " }" + "\n"
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str += " return \"\", false" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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str += "func " + enumdef.EnumTypeName + "Values() []" + enumdef.EnumTypeName + " {" + "\n"
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str += " return __" + enumdef.EnumTypeName + "Values" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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str += "func " + enumdef.EnumTypeName + "ValuesMeta() []enums.EnumMetaValue {" + "\n"
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str += " return []enums.EnumMetaValue{" + "\n"
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for _, v := range enumdef.Values {
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str += " " + v.VarName + ".Meta(),\n"
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}
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str += " }" + "\n"
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str += "}" + "\n"
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str += "" + "\n"
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buffer := bytes.Buffer{}
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err := templ.Execute(&buffer, langext.H{
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"PkgName": pkgname,
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"Checksum": cs,
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"GoextVersion": goext.GoextVersion,
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"Enums": enums,
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})
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if err != nil {
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panic(err)
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}
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return str
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return buffer.String()
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}
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