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service.go
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service.go
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package ast
import (
"fmt"
"sort"
"github.com/estatie/go-zero/tools/goctl/api/parser/g4/gen/api"
)
// Service describes service for api syntax
type Service struct {
AtServer *AtServer
ServiceApi *ServiceApi
}
// KV defines a slice for KvExpr
type KV []*KvExpr
// AtServer describes server metadata for api syntax
type AtServer struct {
AtServerToken Expr
Lp Expr
Rp Expr
Kv KV
}
// ServiceApi describes service ast for api syntax
type ServiceApi struct {
ServiceToken Expr
Name Expr
Lbrace Expr
Rbrace Expr
ServiceRoute []*ServiceRoute
}
// ServiceRoute describes service route ast for api syntax
type ServiceRoute struct {
AtDoc *AtDoc
AtServer *AtServer
AtHandler *AtHandler
Route *Route
}
// AtDoc describes service comments ast for api syntax
type AtDoc struct {
AtDocToken Expr
Lp Expr
Rp Expr
LineDoc Expr
Kv []*KvExpr
}
// AtHandler describes service handler ast for api syntax
type AtHandler struct {
AtHandlerToken Expr
Name Expr
DocExpr []Expr
CommentExpr Expr
}
// Route describes route ast for api syntax
type Route struct {
Method Expr
Path Expr
Req *Body
ReturnToken Expr
Reply *Body
DocExpr []Expr
CommentExpr Expr
}
// Body describes request,response body ast for api syntax
type Body struct {
ReturnExpr Expr
Lp Expr
Rp Expr
Name DataType
}
// VisitServiceSpec implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitServiceSpec(ctx *api.ServiceSpecContext) any {
var serviceSpec Service
if ctx.AtServer() != nil {
serviceSpec.AtServer = ctx.AtServer().Accept(v).(*AtServer)
}
serviceSpec.ServiceApi = ctx.ServiceApi().Accept(v).(*ServiceApi)
return &serviceSpec
}
// VisitAtServer implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitAtServer(ctx *api.AtServerContext) any {
var atServer AtServer
atServer.AtServerToken = v.newExprWithTerminalNode(ctx.ATSERVER())
atServer.Lp = v.newExprWithToken(ctx.GetLp())
atServer.Rp = v.newExprWithToken(ctx.GetRp())
for _, each := range ctx.AllKvLit() {
atServer.Kv = append(atServer.Kv, each.Accept(v).(*KvExpr))
}
return &atServer
}
// VisitServiceApi implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitServiceApi(ctx *api.ServiceApiContext) any {
var serviceApi ServiceApi
serviceApi.ServiceToken = v.newExprWithToken(ctx.GetServiceToken())
serviceName := ctx.ServiceName()
serviceApi.Name = v.newExprWithText(serviceName.GetText(), serviceName.GetStart().GetLine(), serviceName.GetStart().GetColumn(), serviceName.GetStart().GetStart(), serviceName.GetStop().GetStop())
serviceApi.Lbrace = v.newExprWithToken(ctx.GetLbrace())
serviceApi.Rbrace = v.newExprWithToken(ctx.GetRbrace())
for _, each := range ctx.AllServiceRoute() {
serviceApi.ServiceRoute = append(serviceApi.ServiceRoute, each.Accept(v).(*ServiceRoute))
}
return &serviceApi
}
// VisitServiceRoute implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitServiceRoute(ctx *api.ServiceRouteContext) any {
var serviceRoute ServiceRoute
if ctx.AtDoc() != nil {
serviceRoute.AtDoc = ctx.AtDoc().Accept(v).(*AtDoc)
}
if ctx.AtServer() != nil {
serviceRoute.AtServer = ctx.AtServer().Accept(v).(*AtServer)
} else if ctx.AtHandler() != nil {
serviceRoute.AtHandler = ctx.AtHandler().Accept(v).(*AtHandler)
}
serviceRoute.Route = ctx.Route().Accept(v).(*Route)
return &serviceRoute
}
// VisitAtDoc implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitAtDoc(ctx *api.AtDocContext) any {
var atDoc AtDoc
atDoc.AtDocToken = v.newExprWithTerminalNode(ctx.ATDOC())
if ctx.STRING() != nil {
atDoc.LineDoc = v.newExprWithTerminalNode(ctx.STRING())
} else {
for _, each := range ctx.AllKvLit() {
atDoc.Kv = append(atDoc.Kv, each.Accept(v).(*KvExpr))
}
}
atDoc.Lp = v.newExprWithToken(ctx.GetLp())
atDoc.Rp = v.newExprWithToken(ctx.GetRp())
if ctx.GetLp() != nil {
if ctx.GetRp() == nil {
v.panic(atDoc.Lp, "mismatched ')'")
}
}
if ctx.GetRp() != nil {
if ctx.GetLp() == nil {
v.panic(atDoc.Rp, "mismatched '('")
}
}
return &atDoc
}
// VisitAtHandler implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitAtHandler(ctx *api.AtHandlerContext) any {
var atHandler AtHandler
astHandlerExpr := v.newExprWithTerminalNode(ctx.ATHANDLER())
atHandler.AtHandlerToken = astHandlerExpr
atHandler.Name = v.newExprWithTerminalNode(ctx.ID())
atHandler.DocExpr = v.getDoc(ctx)
atHandler.CommentExpr = v.getComment(ctx)
return &atHandler
}
// VisitRoute implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitRoute(ctx *api.RouteContext) any {
var route Route
path := ctx.Path()
methodExpr := v.newExprWithToken(ctx.GetHttpMethod())
route.Method = methodExpr
route.Path = v.newExprWithText(path.GetText(), path.GetStart().GetLine(), path.GetStart().GetColumn(), path.GetStart().GetStart(), path.GetStop().GetStop())
if ctx.GetRequest() != nil {
req := ctx.GetRequest().Accept(v)
if req != nil {
route.Req = req.(*Body)
}
}
if ctx.GetResponse() != nil {
reply := ctx.GetResponse().Accept(v)
if reply != nil {
resp := reply.(*Body)
route.ReturnToken = resp.ReturnExpr
resp.ReturnExpr = nil
route.Reply = resp
}
}
route.DocExpr = v.getDoc(ctx)
route.CommentExpr = v.getComment(ctx)
return &route
}
// VisitBody implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitBody(ctx *api.BodyContext) any {
if ctx.ID() == nil {
if v.debug {
msg := fmt.Sprintf(
`%s line %d: expr "()" is deprecated, if there has no request body, please omit it`,
v.prefix,
ctx.GetStart().GetLine(),
)
v.log.Warning(msg)
}
return nil
}
idExpr := v.newExprWithTerminalNode(ctx.ID())
if api.IsGolangKeyWord(idExpr.Text()) {
v.panic(idExpr, fmt.Sprintf("expecting 'ID', but found golang keyword '%s'", idExpr.Text()))
}
return &Body{
Lp: v.newExprWithToken(ctx.GetLp()),
Rp: v.newExprWithToken(ctx.GetRp()),
Name: &Literal{Literal: idExpr},
}
}
// VisitReplybody implements from api.BaseApiParserVisitor
func (v *ApiVisitor) VisitReplybody(ctx *api.ReplybodyContext) any {
if ctx.DataType() == nil {
if v.debug {
msg := fmt.Sprintf(
`%s line %d: expr "returns ()" or "()" is deprecated, if there has no response body, please omit it`,
v.prefix,
ctx.GetStart().GetLine(),
)
v.log.Warning(msg)
}
return nil
}
var returnExpr Expr
if ctx.GetReturnToken() != nil {
returnExpr = v.newExprWithToken(ctx.GetReturnToken())
if ctx.GetReturnToken().GetText() != "returns" {
v.panic(returnExpr, fmt.Sprintf("expecting returns, found input '%s'", ctx.GetReturnToken().GetText()))
}
}
dt := ctx.DataType().Accept(v).(DataType)
if dt == nil {
return nil
}
switch dataType := dt.(type) {
case *Array:
lit := dataType.Literal
switch lit.(type) {
case *Literal, *Pointer:
if api.IsGolangKeyWord(lit.Expr().Text()) {
v.panic(lit.Expr(), fmt.Sprintf("expecting 'ID', but found golang keyword '%s'", lit.Expr().Text()))
}
default:
v.panic(dt.Expr(), fmt.Sprintf("unsupport %s", dt.Expr().Text()))
}
case *Literal:
lit := dataType.Literal.Text()
if api.IsGolangKeyWord(lit) {
v.panic(dataType.Literal, fmt.Sprintf("expecting 'ID', but found golang keyword '%s'", lit))
}
default:
v.panic(dt.Expr(), fmt.Sprintf("unsupport %s", dt.Expr().Text()))
}
return &Body{
ReturnExpr: returnExpr,
Lp: v.newExprWithToken(ctx.GetLp()),
Rp: v.newExprWithToken(ctx.GetRp()),
Name: dt,
}
}
// Format provides a formatter for api command, now nothing to do
func (b *Body) Format() error {
// todo
return nil
}
// Equal compares whether the element literals in two Body are equal
func (b *Body) Equal(v any) bool {
if v == nil {
return false
}
body, ok := v.(*Body)
if !ok {
return false
}
if !b.Lp.Equal(body.Lp) {
return false
}
if !b.Rp.Equal(body.Rp) {
return false
}
return b.Name.Equal(body.Name)
}
// Format provides a formatter for api command, now nothing to do
func (r *Route) Format() error {
// todo
return nil
}
// Doc returns the document of Route, like // some text
func (r *Route) Doc() []Expr {
return r.DocExpr
}
// Comment returns the comment of Route, like // some text
func (r *Route) Comment() Expr {
return r.CommentExpr
}
// Equal compares whether the element literals in two Route are equal
func (r *Route) Equal(v any) bool {
if v == nil {
return false
}
route, ok := v.(*Route)
if !ok {
return false
}
if !r.Method.Equal(route.Method) {
return false
}
if !r.Path.Equal(route.Path) {
return false
}
if r.Req != nil {
if !r.Req.Equal(route.Req) {
return false
}
}
if r.ReturnToken != nil {
if !r.ReturnToken.Equal(route.ReturnToken) {
return false
}
}
if r.Reply != nil {
if !r.Reply.Equal(route.Reply) {
return false
}
}
return EqualDoc(r, route)
}
// Doc returns the document of AtHandler, like // some text
func (a *AtHandler) Doc() []Expr {
return a.DocExpr
}
// Comment returns the comment of AtHandler, like // some text
func (a *AtHandler) Comment() Expr {
return a.CommentExpr
}
// Format provides a formatter for api command, now nothing to do
func (a *AtHandler) Format() error {
// todo
return nil
}
// Equal compares whether the element literals in two AtHandler are equal
func (a *AtHandler) Equal(v any) bool {
if v == nil {
return false
}
atHandler, ok := v.(*AtHandler)
if !ok {
return false
}
if !a.AtHandlerToken.Equal(atHandler.AtHandlerToken) {
return false
}
if !a.Name.Equal(atHandler.Name) {
return false
}
return EqualDoc(a, atHandler)
}
// Format provides a formatter for api command, now nothing to do
func (a *AtDoc) Format() error {
// todo
return nil
}
// Equal compares whether the element literals in two AtDoc are equal
func (a *AtDoc) Equal(v any) bool {
if v == nil {
return false
}
atDoc, ok := v.(*AtDoc)
if !ok {
return false
}
if !a.AtDocToken.Equal(atDoc.AtDocToken) {
return false
}
if a.Lp.IsNotNil() {
if !a.Lp.Equal(atDoc.Lp) {
return false
}
}
if a.Rp.IsNotNil() {
if !a.Rp.Equal(atDoc.Rp) {
return false
}
}
if a.LineDoc != nil {
if !a.LineDoc.Equal(atDoc.LineDoc) {
return false
}
}
var expecting, actual []*KvExpr
expecting = append(expecting, a.Kv...)
actual = append(actual, atDoc.Kv...)
if len(expecting) != len(actual) {
return false
}
for index, each := range expecting {
ac := actual[index]
if !each.Equal(ac) {
return false
}
}
return true
}
// Format provides a formatter for api command, now nothing to do
func (a *AtServer) Format() error {
// todo
return nil
}
// Equal compares whether the element literals in two AtServer are equal
func (a *AtServer) Equal(v any) bool {
if v == nil {
return false
}
atServer, ok := v.(*AtServer)
if !ok {
return false
}
if !a.AtServerToken.Equal(atServer.AtServerToken) {
return false
}
if !a.Lp.Equal(atServer.Lp) {
return false
}
if !a.Rp.Equal(atServer.Rp) {
return false
}
var expecting, actual []*KvExpr
expecting = append(expecting, a.Kv...)
actual = append(actual, atServer.Kv...)
if len(expecting) != len(actual) {
return false
}
sort.Slice(expecting, func(i, j int) bool {
return expecting[i].Key.Text() < expecting[j].Key.Text()
})
sort.Slice(actual, func(i, j int) bool {
return actual[i].Key.Text() < actual[j].Key.Text()
})
for index, each := range expecting {
ac := actual[index]
if !each.Equal(ac) {
return false
}
}
return true
}
// Equal compares whether the element literals in two ServiceRoute are equal
func (s *ServiceRoute) Equal(v any) bool {
if v == nil {
return false
}
sr, ok := v.(*ServiceRoute)
if !ok {
return false
}
if !s.AtDoc.Equal(sr.AtDoc) {
return false
}
if s.AtServer != nil {
if !s.AtServer.Equal(sr.AtServer) {
return false
}
}
if s.AtHandler != nil {
if !s.AtHandler.Equal(sr.AtHandler) {
return false
}
}
return s.Route.Equal(sr.Route)
}
// Format provides a formatter for api command, now nothing to do
func (s *ServiceRoute) Format() error {
// todo
return nil
}
// GetHandler returns handler name of api route
func (s *ServiceRoute) GetHandler() Expr {
if s.AtHandler != nil {
return s.AtHandler.Name
}
return s.AtServer.Kv.Get("handler")
}
// Format provides a formatter for api command, now nothing to do
func (a *ServiceApi) Format() error {
// todo
return nil
}
// Equal compares whether the element literals in two ServiceApi are equal
func (a *ServiceApi) Equal(v any) bool {
if v == nil {
return false
}
api, ok := v.(*ServiceApi)
if !ok {
return false
}
if !a.ServiceToken.Equal(api.ServiceToken) {
return false
}
if !a.Name.Equal(api.Name) {
return false
}
if !a.Lbrace.Equal(api.Lbrace) {
return false
}
if !a.Rbrace.Equal(api.Rbrace) {
return false
}
var expecting, acutal []*ServiceRoute
expecting = append(expecting, a.ServiceRoute...)
acutal = append(acutal, api.ServiceRoute...)
if len(expecting) != len(acutal) {
return false
}
sort.Slice(expecting, func(i, j int) bool {
return expecting[i].Route.Path.Text() < expecting[j].Route.Path.Text()
})
sort.Slice(acutal, func(i, j int) bool {
return acutal[i].Route.Path.Text() < acutal[j].Route.Path.Text()
})
for index, each := range expecting {
ac := acutal[index]
if !each.Equal(ac) {
return false
}
}
return true
}
// Format provides a formatter for api command, now nothing to do
func (s *Service) Format() error {
// todo
return nil
}
// Equal compares whether the element literals in two Service are equal
func (s *Service) Equal(v any) bool {
if v == nil {
return false
}
service, ok := v.(*Service)
if !ok {
return false
}
if s.AtServer != nil {
if !s.AtServer.Equal(service.AtServer) {
return false
}
}
return s.ServiceApi.Equal(service.ServiceApi)
}
// Get returns the target KV by specified key
func (kv KV) Get(key string) Expr {
for _, each := range kv {
if each.Key.Text() == key {
return each.Value
}
}
return nil
}