382 lines
8.6 KiB
Go
382 lines
8.6 KiB
Go
package provider
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import (
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"fmt"
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"go/ast"
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"go/parser"
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"go/token"
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"math/rand"
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"path/filepath"
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"strings"
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"git.ipao.vip/rogeecn/atomctl/pkg/utils/gomod"
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"github.com/samber/lo"
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log "github.com/sirupsen/logrus"
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)
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func getTypePkgName(typ string) string {
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if strings.Contains(typ, ".") {
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return strings.Split(typ, ".")[0]
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}
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return ""
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}
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var scalarTypes = []string{
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"float32",
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"float64",
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"int",
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"int8",
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"int16",
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"int32",
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"int64",
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"uint",
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"uint8",
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"uint16",
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"uint32",
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"uint64",
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"bool",
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"uintptr",
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"complex64",
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"complex128",
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}
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type InjectParam struct {
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Star string
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Type string
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Package string
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PackageAlias string
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}
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type Provider struct {
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StructName string
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ReturnType string
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Mode string
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ProviderGroup string
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GrpcRegisterFunc string
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NeedPrepareFunc bool
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InjectParams map[string]InjectParam
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Imports map[string]string
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PkgName string
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ProviderFile string
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}
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func Parse(source string) []Provider {
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if strings.HasSuffix(source, "_test.go") {
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return []Provider{}
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}
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if strings.HasSuffix(source, "/provider.go") {
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return []Provider{}
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}
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providers := []Provider{}
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fset := token.NewFileSet()
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node, err := parser.ParseFile(fset, source, nil, parser.ParseComments)
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if err != nil {
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log.Error("ERR: ", err)
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return nil
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}
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imports := make(map[string]string)
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for _, imp := range node.Imports {
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name := ""
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pkgPath := strings.Trim(imp.Path.Value, "\"")
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if imp.Name != nil {
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// 如果有显式指定包名，直接使用
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name = imp.Name.Name
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} else {
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// 尝试从go.mod中获取真实包名
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name = gomod.GetPackageModuleName(pkgPath)
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}
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// 处理匿名导入的情况
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if name == "_" {
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name = gomod.GetPackageModuleName(pkgPath)
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// 处理重名
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if _, ok := imports[name]; ok {
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name = fmt.Sprintf("%s%d", name, rand.Intn(100))
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}
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}
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imports[name] = pkgPath
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}
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// 再去遍历 struct 的方法去
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for _, decl := range node.Decls {
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provider := Provider{
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InjectParams: make(map[string]InjectParam),
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Imports: make(map[string]string),
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}
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decl, ok := decl.(*ast.GenDecl)
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if !ok {
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continue
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}
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if len(decl.Specs) == 0 {
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continue
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}
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declType, ok := decl.Specs[0].(*ast.TypeSpec)
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if !ok {
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continue
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}
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// 必须包含注释 // @provider:only/except
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if decl.Doc == nil {
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continue
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}
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if len(decl.Doc.List) == 0 {
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continue
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}
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structType, ok := declType.Type.(*ast.StructType)
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if !ok {
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continue
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}
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provider.StructName = declType.Name.Name
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docMark := strings.TrimLeft(decl.Doc.List[len(decl.Doc.List)-1].Text, "/ \t")
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if !strings.HasPrefix(docMark, "@provider") {
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continue
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}
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// mode, returnType, group := parseDoc(docMark)
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// // log.Infof("mode: %s, returnType: %s, group: %s", mode, returnType, group)
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// if returnType == "#" {
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// provider.ReturnType = "*" + provider.StructName
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// } else {
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// provider.ReturnType = returnType
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// }
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// onlyMode := mode == "only"
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// exceptMode := mode == "except"
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// log.Infof("[%s] %s => ONLY: %+v, EXCEPT: %+v, Type: %s, Group: %s", source, declType.Name.Name, onlyMode, exceptMode, provider.ReturnType, provider.ProviderGroup)
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providerDoc := parseProvider(docMark)
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log.Infof("[%s] %s %+v", source, declType.Name.Name, providerDoc)
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provider.ProviderGroup = providerDoc.Group
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provider.ReturnType = providerDoc.ReturnType
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if provider.ReturnType == "" {
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provider.ReturnType = "*" + provider.StructName
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}
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for _, field := range structType.Fields.List {
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if field.Names == nil {
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continue
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}
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if field.Tag != nil {
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provider.NeedPrepareFunc = true
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}
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if providerDoc.IsOnly {
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if field.Tag == nil || !strings.Contains(field.Tag.Value, `inject:"true"`) {
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continue
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}
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} else {
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if field.Tag != nil && strings.Contains(field.Tag.Value, `inject:"false"`) {
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continue
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}
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}
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var star string
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var pkg string
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var pkgAlias string
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var typ string
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switch field.Type.(type) {
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case *ast.Ident:
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typ = field.Type.(*ast.Ident).Name
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case *ast.StarExpr:
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star = "*"
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paramsType := field.Type.(*ast.StarExpr)
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switch paramsType.X.(type) {
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case *ast.SelectorExpr:
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X := paramsType.X.(*ast.SelectorExpr)
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pkgAlias = X.X.(*ast.Ident).Name
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p, ok := imports[pkgAlias]
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if !ok {
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continue
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}
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pkg = p
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typ = X.Sel.Name
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default:
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typ = paramsType.X.(*ast.Ident).Name
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}
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case *ast.SelectorExpr:
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pkgAlias = field.Type.(*ast.SelectorExpr).X.(*ast.Ident).Name
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p, ok := imports[pkgAlias]
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if !ok {
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continue
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}
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pkg = p
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typ = field.Type.(*ast.SelectorExpr).Sel.Name
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}
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if lo.Contains(scalarTypes, typ) {
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continue
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}
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for _, name := range field.Names {
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provider.InjectParams[name.Name] = InjectParam{
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Star: star,
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Type: typ,
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Package: pkg,
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PackageAlias: pkgAlias,
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}
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}
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if importPkg, ok := imports[pkgAlias]; ok {
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provider.Imports[importPkg] = pkgAlias
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}
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}
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if pkgAlias := getTypePkgName(provider.ReturnType); pkgAlias != "" {
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if importPkg, ok := imports[pkgAlias]; ok {
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provider.Imports[importPkg] = pkgAlias
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}
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}
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if pkgAlias := getTypePkgName(provider.ProviderGroup); pkgAlias != "" {
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if importPkg, ok := imports[pkgAlias]; ok {
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provider.Imports[importPkg] = pkgAlias
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}
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}
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provider.PkgName = node.Name.Name
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provider.ProviderFile = filepath.Join(filepath.Dir(source), "provider.gen.go")
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if providerDoc.Mode == "grpc" {
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provider.Mode = "grpc"
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modePkg := gomod.GetModuleName() + "/providers/grpc"
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provider.Imports["git.ipao.vip/rogeecn/atom"] = ""
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provider.Imports["git.ipao.vip/rogeecn/atom/contracts"] = ""
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provider.Imports[modePkg] = ""
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provider.ProviderGroup = "atom.GroupInitial"
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provider.GrpcRegisterFunc = provider.ReturnType
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provider.ReturnType = "contracts.Initial"
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provider.InjectParams["__grpc"] = InjectParam{
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Star: "*",
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Type: "Grpc",
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Package: modePkg,
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PackageAlias: "grpc",
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}
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}
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if providerDoc.Mode == "event" {
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provider.Mode = "event"
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modePkg := gomod.GetModuleName() + "/providers/event"
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provider.Imports["git.ipao.vip/rogeecn/atom"] = ""
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provider.Imports["git.ipao.vip/rogeecn/atom/contracts"] = ""
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provider.Imports[modePkg] = ""
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provider.ProviderGroup = "atom.GroupInitial"
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provider.ReturnType = "contracts.Initial"
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provider.InjectParams["__event"] = InjectParam{
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Star: "*",
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Type: "PubSub",
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Package: modePkg,
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PackageAlias: "event",
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}
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}
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if providerDoc.Mode == "job" {
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provider.Mode = "job"
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modePkg := gomod.GetModuleName() + "/providers/job"
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provider.Imports["git.ipao.vip/rogeecn/atom"] = ""
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provider.Imports["git.ipao.vip/rogeecn/atom/contracts"] = ""
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provider.Imports["github.com/riverqueue/river"] = ""
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provider.Imports[modePkg] = ""
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provider.ProviderGroup = "atom.GroupInitial"
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provider.ReturnType = "contracts.Initial"
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provider.InjectParams["__job"] = InjectParam{
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Star: "*",
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Type: "Job",
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Package: modePkg,
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PackageAlias: "job",
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}
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}
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providers = append(providers, provider)
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}
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return providers
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}
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// @provider(mode):[except|only] [returnType] [group]
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type ProviderDescribe struct {
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IsOnly bool
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Mode string // job
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ReturnType string
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Group string
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}
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func (p ProviderDescribe) String() {
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// log.Infof("[%s] %s => ONLY: %+v, EXCEPT: %+v, Type: %s, Group: %s", source, declType.Name.Name, onlyMode, exceptMode, provider.ReturnType, provider.ProviderGroup)
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}
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// @provider
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// @provider(job)
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// @provider(job):except
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// @provider:except
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// @provider:only
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// @provider returnType
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// @provider returnType group
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// @provider(job) returnType group
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func parseProvider(doc string) ProviderDescribe {
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result := ProviderDescribe{IsOnly: false}
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// Remove @provider prefix
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doc = strings.TrimSpace(strings.TrimPrefix(doc, "@provider"))
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// Handle empty case
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if doc == "" {
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return result
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}
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// Handle :except and :only
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if strings.Contains(doc, ":except") {
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result.IsOnly = false
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doc = strings.Replace(doc, ":except", "", 1)
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} else if strings.Contains(doc, ":only") {
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result.IsOnly = true
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doc = strings.Replace(doc, ":only", "", 1)
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}
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// Handle mode in parentheses
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if strings.Contains(doc, "(") && strings.Contains(doc, ")") {
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start := strings.Index(doc, "(")
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end := strings.Index(doc, ")")
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result.Mode = doc[start+1 : end]
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doc = doc[:start] + doc[end+1:]
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}
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// Handle remaining parts (returnType and group)
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parts := strings.Fields(strings.TrimSpace(doc))
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if len(parts) >= 1 {
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result.ReturnType = parts[0]
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}
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if len(parts) >= 2 {
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result.Group = parts[1]
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}
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return result
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}
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