migrate go version to 1.17 (#203)

* migrate go version to 1.17

* update contributing

vendor/github.com/gin-gonic/gin/.golangci.yml

@@ -0,0 +1,22 @@
+run:
+  timeout: 5m
+linters:
+  enable:
+  - gofmt
+  - misspell
+  - revive
+issues:
+  exclude-rules:
+  - linters:
+    - structcheck
+    - unused
+    text: "`data` is unused"
+  - linters:
+    - staticcheck
+    text: "SA1019:"
+  - linters:
+    - revive
+    text: "var-naming:"
+  - linters:
+    - revive
+    text: "exported:"

vendor/github.com/gin-gonic/gin/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Gin ChangeLog
 
+## Gin v1.7.3
+
+### BUGFIXES
+
+* fix level 1 router match [#2767](https://github.com/gin-gonic/gin/issues/2767), [#2796](https://github.com/gin-gonic/gin/issues/2796)
+
 ## Gin v1.7.2
 
 ### BUGFIXES

vendor/github.com/gin-gonic/gin/README.md

@@ -256,14 +256,15 @@ func main() {
 
 	// For each matched request Context will hold the route definition
 	router.POST("/user/:name/*action", func(c *gin.Context) {
-		c.FullPath() == "/user/:name/*action" // true
+		b := c.FullPath() == "/user/:name/*action" // true
+		c.String(http.StatusOK, "%t", b)
 	})
 
 	// This handler will add a new router for /user/groups.
 	// Exact routes are resolved before param routes, regardless of the order they were defined.
 	// Routes starting with /user/groups are never interpreted as /user/:name/... routes
 	router.GET("/user/groups", func(c *gin.Context) {
-		c.String(http.StatusOK, "The available groups are [...]", name)
+		c.String(http.StatusOK, "The available groups are [...]")
 	})
 
 	router.Run(":8080")

vendor/github.com/gin-gonic/gin/binding/form_mapping.go

@@ -26,7 +26,7 @@ var (
 	ErrConvertToMapString = errors.New("can not convert to map of strings")
 )
 
-func mapUri(ptr interface{}, m map[string][]string) error {
+func mapURI(ptr interface{}, m map[string][]string) error {
 	return mapFormByTag(ptr, m, "uri")
 }
 
@@ -83,7 +83,7 @@ func mapping(value reflect.Value, field reflect.StructField, setter setter, tag
 		return false, nil
 	}
 
-	var vKind = value.Kind()
+	vKind := value.Kind()
 
 	if vKind == reflect.Ptr {
 		var isNew bool
@@ -210,7 +210,7 @@ func setWithProperType(val string, value reflect.Value, field reflect.StructFiel
 	case reflect.Int64:
 		switch value.Interface().(type) {
 		case time.Duration:
-			return setTimeDuration(val, value, field)
+			return setTimeDuration(val, value)
 		}
 		return setIntField(val, 64, value)
 	case reflect.Uint:
@@ -310,7 +310,6 @@ func setTimeField(val string, structField reflect.StructField, value reflect.Val
 		t := time.Unix(tv/int64(d), tv%int64(d))
 		value.Set(reflect.ValueOf(t))
 		return nil
-
 	}
 
 	if val == "" {
@@ -360,7 +359,7 @@ func setSlice(vals []string, value reflect.Value, field reflect.StructField) err
 	return nil
 }
 
-func setTimeDuration(val string, value reflect.Value, field reflect.StructField) error {
+func setTimeDuration(val string, value reflect.Value) error {
 	d, err := time.ParseDuration(val)
 	if err != nil {
 		return err

vendor/github.com/gin-gonic/gin/binding/protobuf.go

@@ -5,10 +5,11 @@
 package binding
 
 import (
+	"errors"
 	"io/ioutil"
 	"net/http"
 
-	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 )
 
 type protobufBinding struct{}
@@ -26,7 +27,11 @@ func (b protobufBinding) Bind(req *http.Request, obj interface{}) error {
 }
 
 func (protobufBinding) BindBody(body []byte, obj interface{}) error {
-	if err := proto.Unmarshal(body, obj.(proto.Message)); err != nil {
+	msg, ok := obj.(proto.Message)
+	if !ok {
+		return errors.New("obj is not ProtoMessage")
+	}
+	if err := proto.Unmarshal(body, msg); err != nil {
 		return err
 	}
 	// Here it's same to return validate(obj), but util now we can't add

vendor/github.com/gin-gonic/gin/binding/uri.go

@@ -11,7 +11,7 @@ func (uriBinding) Name() string {
 }
 
 func (uriBinding) BindUri(m map[string][]string, obj interface{}) error {
-	if err := mapUri(obj, m); err != nil {
+	if err := mapURI(obj, m); err != nil {
 		return err
 	}
 	return validate(obj)

vendor/github.com/gin-gonic/gin/context.go

@@ -383,6 +383,15 @@ func (c *Context) Param(key string) string {
 	return c.Params.ByName(key)
 }
 
+// AddParam adds param to context and
+// replaces path param key with given value for e2e testing purposes
+// Example Route: "/user/:id"
+// AddParam("id", 1)
+// Result: "/user/1"
+func (c *Context) AddParam(key, value string) {
+	c.Params = append(c.Params, Param{Key: key, Value: value})
+}
+
 // Query returns the keyed url query value if it exists,
 // otherwise it returns an empty string `("")`.
 // It is shortcut for `c.Request.URL.Query().Get(key)`
@@ -391,9 +400,9 @@ func (c *Context) Param(key string) string {
 // 	   c.Query("name") == "Manu"
 // 	   c.Query("value") == ""
 // 	   c.Query("wtf") == ""
-func (c *Context) Query(key string) string {
-	value, _ := c.GetQuery(key)
-	return value
+func (c *Context) Query(key string) (value string) {
+	value, _ = c.GetQuery(key)
+	return
 }
 
 // DefaultQuery returns the keyed url query value if it exists,
@@ -427,9 +436,9 @@ func (c *Context) GetQuery(key string) (string, bool) {
 
 // QueryArray returns a slice of strings for a given query key.
 // The length of the slice depends on the number of params with the given key.
-func (c *Context) QueryArray(key string) []string {
-	values, _ := c.GetQueryArray(key)
-	return values
+func (c *Context) QueryArray(key string) (values []string) {
+	values, _ = c.GetQueryArray(key)
+	return
 }
 
 func (c *Context) initQueryCache() {
@@ -444,18 +453,16 @@ func (c *Context) initQueryCache() {
 
 // GetQueryArray returns a slice of strings for a given query key, plus
 // a boolean value whether at least one value exists for the given key.
-func (c *Context) GetQueryArray(key string) ([]string, bool) {
+func (c *Context) GetQueryArray(key string) (values []string, ok bool) {
 	c.initQueryCache()
-	if values, ok := c.queryCache[key]; ok && len(values) > 0 {
-		return values, true
-	}
-	return []string{}, false
+	values, ok = c.queryCache[key]
+	return
 }
 
 // QueryMap returns a map for a given query key.
-func (c *Context) QueryMap(key string) map[string]string {
-	dicts, _ := c.GetQueryMap(key)
-	return dicts
+func (c *Context) QueryMap(key string) (dicts map[string]string) {
+	dicts, _ = c.GetQueryMap(key)
+	return
 }
 
 // GetQueryMap returns a map for a given query key, plus a boolean value
@@ -467,9 +474,9 @@ func (c *Context) GetQueryMap(key string) (map[string]string, bool) {
 
 // PostForm returns the specified key from a POST urlencoded form or multipart form
 // when it exists, otherwise it returns an empty string `("")`.
-func (c *Context) PostForm(key string) string {
-	value, _ := c.GetPostForm(key)
-	return value
+func (c *Context) PostForm(key string) (value string) {
+	value, _ = c.GetPostForm(key)
+	return
 }
 
 // DefaultPostForm returns the specified key from a POST urlencoded form or multipart form
@@ -498,9 +505,9 @@ func (c *Context) GetPostForm(key string) (string, bool) {
 
 // PostFormArray returns a slice of strings for a given form key.
 // The length of the slice depends on the number of params with the given key.
-func (c *Context) PostFormArray(key string) []string {
-	values, _ := c.GetPostFormArray(key)
-	return values
+func (c *Context) PostFormArray(key string) (values []string) {
+	values, _ = c.GetPostFormArray(key)
+	return
 }
 
 func (c *Context) initFormCache() {
@@ -518,18 +525,16 @@ func (c *Context) initFormCache() {
 
 // GetPostFormArray returns a slice of strings for a given form key, plus
 // a boolean value whether at least one value exists for the given key.
-func (c *Context) GetPostFormArray(key string) ([]string, bool) {
+func (c *Context) GetPostFormArray(key string) (values []string, ok bool) {
 	c.initFormCache()
-	if values := c.formCache[key]; len(values) > 0 {
-		return values, true
-	}
-	return []string{}, false
+	values, ok = c.formCache[key]
+	return
 }
 
 // PostFormMap returns a map for a given form key.
-func (c *Context) PostFormMap(key string) map[string]string {
-	dicts, _ := c.GetPostFormMap(key)
-	return dicts
+func (c *Context) PostFormMap(key string) (dicts map[string]string) {
+	dicts, _ = c.GetPostFormMap(key)
+	return
 }
 
 // GetPostFormMap returns a map for a given form key, plus a boolean value
@@ -1161,22 +1166,28 @@ func (c *Context) SetAccepted(formats ...string) {
 /***** GOLANG.ORG/X/NET/CONTEXT *****/
 /************************************/
 
-// Deadline always returns that there is no deadline (ok==false),
-// maybe you want to use Request.Context().Deadline() instead.
+// Deadline returns that there is no deadline (ok==false) when c.Request has no Context.
 func (c *Context) Deadline() (deadline time.Time, ok bool) {
-	return
+	if c.Request == nil || c.Request.Context() == nil {
+		return
+	}
+	return c.Request.Context().Deadline()
 }
 
-// Done always returns nil (chan which will wait forever),
-// if you want to abort your work when the connection was closed
-// you should use Request.Context().Done() instead.
+// Done returns nil (chan which will wait forever) when c.Request has no Context.
 func (c *Context) Done() <-chan struct{} {
-	return nil
+	if c.Request == nil || c.Request.Context() == nil {
+		return nil
+	}
+	return c.Request.Context().Done()
 }
 
-// Err always returns nil, maybe you want to use Request.Context().Err() instead.
+// Err returns nil when c.Request has no Context.
 func (c *Context) Err() error {
-	return nil
+	if c.Request == nil || c.Request.Context() == nil {
+		return nil
+	}
+	return c.Request.Context().Err()
 }
 
 // Value returns the value associated with this context for key, or nil

vendor/github.com/gin-gonic/gin/go.mod

@@ -1,15 +0,0 @@
-module github.com/gin-gonic/gin
-
-go 1.13
-
-require (
-	github.com/gin-contrib/sse v0.1.0
-	github.com/go-playground/validator/v10 v10.6.1
-	github.com/goccy/go-json v0.5.1
-	github.com/golang/protobuf v1.3.3
-	github.com/json-iterator/go v1.1.9
-	github.com/mattn/go-isatty v0.0.12
-	github.com/stretchr/testify v1.4.0
-	github.com/ugorji/go/codec v1.2.6
-	gopkg.in/yaml.v2 v2.2.8
-)

vendor/github.com/gin-gonic/gin/go.sum

@@ -1,55 +0,0 @@
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
-github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
-github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
-github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
-github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
-github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
-github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD876Lmtgy7VtROAbHHXk8no=
-github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
-github.com/go-playground/validator/v10 v10.6.1 h1:W6TRDXt4WcWp4c4nf/G+6BkGdhiIo0k417gfr+V6u4I=
-github.com/go-playground/validator/v10 v10.6.1/go.mod h1:xm76BBt941f7yWdGnI2DVPFFg1UK3YY04qifoXU3lOk=
-github.com/goccy/go-json v0.5.1 h1:R9UYTOUvo7eIY9aeDMZ4L6OVtHaSr1k2No9W6MKjXrA=
-github.com/goccy/go-json v0.5.1/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MGFi0w8I=
-github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
-github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
-github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
-github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGns=
-github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
-github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
-github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
-github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
-github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
-github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
-github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
-github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/ugorji/go v1.2.6 h1:tGiWC9HENWE2tqYycIqFTNorMmFRVhNwCpDOpWqnk8E=
-github.com/ugorji/go v1.2.6/go.mod h1:anCg0y61KIhDlPZmnH+so+RQbysYVyDko0IMgJv0Nn0=
-github.com/ugorji/go/codec v1.2.6 h1:7kbGefxLoDBuYXOms4yD7223OpNMMPNPZxXk5TvFcyQ=
-github.com/ugorji/go/codec v1.2.6/go.mod h1:V6TCNZ4PHqoHGFZuSG1W8nrCzzdgA2DozYxWFFpvxTw=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 h1:psW17arqaxU48Z5kZ0CQnkZWQJsqcURM6tKiBApRjXI=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
-golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.2 h1:tW2bmiBqwgJj/UpqtC8EpXEZVYOwU0yG4iWbprSVAcs=
-golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
-gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

vendor/github.com/gin-gonic/gin/mode.go

@@ -41,8 +41,10 @@ var DefaultWriter io.Writer = os.Stdout
 // DefaultErrorWriter is the default io.Writer used by Gin to debug errors
 var DefaultErrorWriter io.Writer = os.Stderr
 
-var ginMode = debugCode
-var modeName = DebugMode
+var (
+	ginMode  = debugCode
+	modeName = DebugMode
+)
 
 func init() {
 	mode := os.Getenv(EnvGinMode)

vendor/github.com/gin-gonic/gin/render/json.go

@@ -49,7 +49,7 @@ type PureJSON struct {
 var (
 	jsonContentType      = []string{"application/json; charset=utf-8"}
 	jsonpContentType     = []string{"application/javascript; charset=utf-8"}
-	jsonAsciiContentType = []string{"application/json"}
+	jsonASCIIContentType = []string{"application/json"}
 )
 
 // Render (JSON) writes data with custom ContentType.
@@ -102,8 +102,7 @@ func (r SecureJSON) Render(w http.ResponseWriter) error {
 	// if the jsonBytes is array values
 	if bytes.HasPrefix(jsonBytes, bytesconv.StringToBytes("[")) && bytes.HasSuffix(jsonBytes,
 		bytesconv.StringToBytes("]")) {
-		_, err = w.Write(bytesconv.StringToBytes(r.Prefix))
-		if err != nil {
+		if _, err = w.Write(bytesconv.StringToBytes(r.Prefix)); err != nil {
 			return err
 		}
 	}
@@ -130,20 +129,19 @@ func (r JsonpJSON) Render(w http.ResponseWriter) (err error) {
 	}
 
 	callback := template.JSEscapeString(r.Callback)
-	_, err = w.Write(bytesconv.StringToBytes(callback))
-	if err != nil {
+	if _, err = w.Write(bytesconv.StringToBytes(callback)); err != nil {
 		return err
 	}
-	_, err = w.Write(bytesconv.StringToBytes("("))
-	if err != nil {
+
+	if _, err = w.Write(bytesconv.StringToBytes("(")); err != nil {
 		return err
 	}
-	_, err = w.Write(ret)
-	if err != nil {
+
+	if _, err = w.Write(ret); err != nil {
 		return err
 	}
-	_, err = w.Write(bytesconv.StringToBytes(");"))
-	if err != nil {
+
+	if _, err = w.Write(bytesconv.StringToBytes(");")); err != nil {
 		return err
 	}
 
@@ -178,7 +176,7 @@ func (r AsciiJSON) Render(w http.ResponseWriter) (err error) {
 
 // WriteContentType (AsciiJSON) writes JSON ContentType.
 func (r AsciiJSON) WriteContentType(w http.ResponseWriter) {
-	writeContentType(w, jsonAsciiContentType)
+	writeContentType(w, jsonASCIIContentType)
 }
 
 // Render (PureJSON) writes custom ContentType and encodes the given interface object.

vendor/github.com/gin-gonic/gin/render/protobuf.go

@@ -7,7 +7,7 @@ package render
 import (
 	"net/http"
 
-	"github.com/golang/protobuf/proto"
+	"google.golang.org/protobuf/proto"
 )
 
 // ProtoBuf contains the given interface object.

vendor/github.com/gin-gonic/gin/tree.go

@@ -101,8 +101,7 @@ func countParams(path string) uint16 {
 type nodeType uint8
 
 const (
-	static nodeType = iota // default
-	root
+	root nodeType = iota + 1
 	param
 	catchAll
 )
@@ -400,23 +399,10 @@ type nodeValue struct {
 // made if a handle exists with an extra (without the) trailing slash for the
 // given path.
 func (n *node) getValue(path string, params *Params, unescape bool) (value nodeValue) {
-	// path: /abc/123/def
-	// level 1 router:abc
-	// level 2 router:123
-	// level 3 router:def
 	var (
 		skippedPath string
-		latestNode  = n // not found `level 2 router` use latestNode
-
-		// match '/' count
-		// matchNum < 1: `level 2 router` not found,the current node needs to be equal to latestNode
-		// matchNum >= 1: `level (2 or 3 or 4 or ...) router`: Normal handling
-		matchNum int // each match will accumulate
+		latestNode  = n // Caching the latest node
 	)
-	//if path == "/", no need to look for tree node
-	if len(path) == 1 {
-		matchNum = 1
-	}
 
 walk: // Outer loop for walking the tree
 	for {
@@ -444,17 +430,13 @@ walk: // Outer loop for walking the tree
 						}
 
 						n = n.children[i]
-
-						// match '/', If this condition is matched, the next route is found
-						if (len(n.fullPath) != 0 && n.wildChild) || path[len(path)-1] == '/' {
-							matchNum++
-						}
 						continue walk
 					}
 				}
-
-				// level 2 router not found,the current node needs to be equal to latestNode
-				if matchNum < 1 {
+				// If the path at the end of the loop is not equal to '/' and the current node has no child nodes
+				// the current node needs to be equal to the latest matching node
+				matched := path != "/" && !n.wildChild
+				if matched {
 					n = latestNode
 				}
 
@@ -472,6 +454,16 @@ walk: // Outer loop for walking the tree
 
 				switch n.nType {
 				case param:
+					// fix truncate the parameter
+					// tree_test.go  line: 204
+					if matched {
+						path = prefix + path
+						// The saved path is used after the prefix route is intercepted by matching
+						if n.indices == "/" {
+							path = skippedPath[1:]
+						}
+					}
+
 					// Find param end (either '/' or path end)
 					end := 0
 					for end < len(path) && path[end] != '/' {
@@ -503,18 +495,6 @@ walk: // Outer loop for walking the tree
 						if len(n.children) > 0 {
 							path = path[end:]
 							n = n.children[0]
-							// next node,the latestNode needs to be equal to currentNode and handle next router
-							latestNode = n
-							// not found router in (level 1 router and handle next node),skippedPath cannot execute
-							// example:
-							// * /:cc/cc
-							// call /a/cc 	     expectations:match/200      Actual:match/200
-							// call /a/dd 	     expectations:unmatch/404    Actual: panic
-							// call /addr/dd/aa  expectations:unmatch/404    Actual: panic
-							// skippedPath: It can only be executed if the secondary route is not found
-							// matchNum: Go to the next level of routing tree node search,need add matchNum
-							skippedPath = ""
-							matchNum++
 							continue walk
 						}
 
@@ -567,8 +547,9 @@ walk: // Outer loop for walking the tree
 		}
 
 		if path == prefix {
-			// level 2 router not found and latestNode.wildChild is true
-			if matchNum < 1 && latestNode.wildChild {
+			// If the current path does not equal '/' and the node does not have a registered handle and the most recently matched node has a child node
+			// the current node needs to be equal to the latest matching node
+			if latestNode.wildChild && n.handlers == nil && path != "/" {
 				n = latestNode.children[len(latestNode.children)-1]
 			}
 			// We should have reached the node containing the handle.
@@ -600,10 +581,17 @@ walk: // Outer loop for walking the tree
 			return
 		}
 
-		// path != "/" && skippedPath != ""
-		if len(path) != 1 && len(skippedPath) > 0 && strings.HasSuffix(skippedPath, path) {
+		if path != "/" && len(skippedPath) > 0 && strings.HasSuffix(skippedPath, path) {
 			path = skippedPath
-			n = latestNode
+			// Reduce the number of cycles
+			n, latestNode = latestNode, n
+			// skippedPath cannot execute
+			// example:
+			// * /:cc/cc
+			// call /a/cc 	     expectations:match/200      Actual:match/200
+			// call /a/dd 	     expectations:unmatch/404    Actual: panic
+			// call /addr/dd/aa  expectations:unmatch/404    Actual: panic
+			// skippedPath: It can only be executed if the secondary route is not found
 			skippedPath = ""
 			continue walk
 		}

vendor/github.com/gin-gonic/gin/version.go

@@ -5,4 +5,4 @@
 package gin
 
 // Version is the current gin framework's version.
-const Version = "v1.7.2"
+const Version = "v1.7.3"