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feat: impl go package to kcl files #333

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merged 1 commit into from
Jun 24, 2024
Merged

feat: impl go package to kcl files #333

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182 changes: 0 additions & 182 deletions pkg/tools/gen/genkcl.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,20 +2,15 @@ package gen

import (
"errors"
"fmt"
"io"
"path/filepath"
"regexp"
"strconv"
"strings"

"kcl-lang.io/kcl-go/pkg/loader"
"kcl-lang.io/kcl-go/pkg/logger"
)

type GenKclOptions struct {
Mode Mode
ParseFromTag bool
CastingOption castingOption
UseIntegersForNumbers bool
}
Expand Down Expand Up @@ -104,180 +99,3 @@ func (k *kclGenerator) GenSchema(w io.Writer, filename string, src interface{})
return errors.New("unknown mode")
}
}

func (k *kclGenerator) genSchemaFromGoStruct(w io.Writer, filename string, src interface{}) error {
fmt.Fprintln(w)
goStructs, err := ParseGoSourceCode(filename, src)
if err != nil {
return err
}
for _, goStruct := range goStructs {
fmt.Fprintf(w, "schema %s:\n", goStruct.Name)
if goStruct.StructComment != "" {
fmt.Fprintf(w, " \"\"\"%s\"\"\"\n", goStruct.StructComment)
}
for _, field := range goStruct.Fields {
kclFieldName, kclFieldType, err := k.GetTypeName(field)
if err != nil {
logger.GetLogger().Warningf("get struct tag key kcl info err: %s, will generate kcl schema from the struct field metadata data, field info %#v", err.Error(), field)
kclFieldName, kclFieldType = k.GetKclTypeFromStructField(field)
}
fmt.Fprintf(w, " %s: %s\n", kclFieldName, kclFieldType)
}
fmt.Fprintf(w, "\n")
}
return nil
}

func (k *kclGenerator) GetTypeName(f *GoStructField) (string, string, error) {
if k.opts.ParseFromTag {
return k.parserGoStructFieldTag(f.FieldTag)
}
fieldName, fieldType := k.GetKclTypeFromStructField(f)
return fieldName, fieldType, nil
}

func (k *kclGenerator) parserGoStructFieldTag(tag string) (string, string, error) {
tagMap := make(map[string]string, 0)
sp := strings.Split(tag, "`")
if len(sp) == 1 {
return "", "", errors.New("this field not found tag string like ``")
}
value, ok := k.Lookup(sp[1], "kcl")
if !ok {
return "", "", errors.New("not found tag key named kcl")
}
reg := "name=.*,type=.*"
match, err := regexp.Match(reg, []byte(value))
if err != nil {
return "", "", err
}
if !match {
return "", "", errors.New("don't match the kcl tag info, the tag info style is name=NAME,type=TYPE")
}
tagInfo := strings.Split(value, ",")
for _, s := range tagInfo {
t := strings.Split(s, "=")
tagMap[t[0]] = t[1]
}
fieldType := tagMap["type"]
if strings.Contains(tagMap["type"], ")|") {
typeUnionList := strings.Split(tagMap["type"], "|")
var ss []string
for _, u := range typeUnionList {
_, _, litValue := k.isLitType(u)
ss = append(ss, litValue)
}
fieldType = strings.Join(ss, "|")
}
return tagMap["name"], fieldType, nil
}

func (k *kclGenerator) GetKclTypeFromStructField(f *GoStructField) (string, string) {
return f.FieldName, k.isLitGoType(f.FieldType)
}

func (k *kclGenerator) isLitType(fieldType string) (ok bool, basicTyp, litValue string) {
if !strings.HasSuffix(fieldType, ")") {
return
}

i := strings.Index(fieldType, "(") + 1
j := strings.LastIndex(fieldType, ")")

switch {
case strings.HasPrefix(fieldType, "bool("):
return true, "bool", fieldType[i:j]
case strings.HasPrefix(fieldType, "int("):
return true, "int", fieldType[i:j]
case strings.HasPrefix(fieldType, "float("):
return true, "float", fieldType[i:j]
case strings.HasPrefix(fieldType, "str("):
return true, "str", strconv.Quote(fieldType[i:j])
}
return
}

func (k *kclGenerator) isLitGoType(fieldType string) string {
switch fieldType {
case "int", "int32", "int64":
return "int"
case "float", "float64":
return "float"
case "string":
return "str"
case "bool":
return "bool"
case "interface{}":
return "any"
default:
if strings.HasPrefix(fieldType, "*") {
i := strings.Index(fieldType, "*") + 1
return k.isLitGoType(fieldType[i:])
}
if strings.HasPrefix(fieldType, "map") {
i := strings.Index(fieldType, "[") + 1
j := strings.Index(fieldType, "]")
return fmt.Sprintf("{%s:%s}", k.isLitGoType(fieldType[i:j]), k.isLitGoType(fieldType[j+1:]))
}
if strings.HasPrefix(fieldType, "[]") {
i := strings.Index(fieldType, "]") + 1
return fmt.Sprintf("[%s]", k.isLitGoType(fieldType[i:]))
}
return fieldType
}
}

func (k *kclGenerator) Lookup(tag, key string) (value string, ok bool) {
// When modifying this code, also update the validateStructTag code
// in cmd/vet/structtag.go.

for tag != "" {
// Skip leading space.
i := 0
for i < len(tag) && tag[i] == ' ' {
i++
}
tag = tag[i:]
if tag == "" {
break
}

// Scan to colon. A space, a quote or a control character is a syntax error.
// Strictly speaking, control chars include the range [0x7f, 0x9f], not just
// [0x00, 0x1f], but in practice, we ignore the multi-byte control characters
// as it is simpler to inspect the tag's bytes than the tag's runes.
i = 0
for i < len(tag) && tag[i] > ' ' && tag[i] != ':' && tag[i] != '"' && tag[i] != 0x7f {
i++
}
if i == 0 || i+1 >= len(tag) || tag[i] != ':' || tag[i+1] != '"' {
break
}
name := string(tag[:i])
tag = tag[i+1:]

// Scan quoted string to find value.
i = 1
for i < len(tag) && tag[i] != '"' {
if tag[i] == '\\' {
i++
}
i++
}
if i >= len(tag) {
break
}
qvalue := string(tag[:i+1])
tag = tag[i+1:]

if key == name {
value, err := strconv.Unquote(qvalue)
if err != nil {
break
}
return value, true
}
}
return "", false
}
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