Linting and optimizing struct memory signature. (#1184)

* fix cleanPath spell (#969)

* linter and optimize structs

README.md

@@ -540,7 +540,7 @@ import (
 
 	"github.com/gin-gonic/gin"
 	"github.com/gin-gonic/gin/binding"
-	validator "gopkg.in/go-playground/validator.v8"
+	"gopkg.in/go-playground/validator.v8"
 )
 
 type Booking struct {

benchmarks_test.go

@@ -59,8 +59,6 @@ func BenchmarkOneRouteJSON(B *testing.B) {
 	runRequest(B, router, "GET", "/json")
 }
 
-var htmlContentType = []string{"text/html; charset=utf-8"}
-
 func BenchmarkOneRouteHTML(B *testing.B) {
 	router := New()
 	t := template.Must(template.New("index").Parse(`

binding/form_mapping.go

@@ -179,12 +179,3 @@ func setTimeField(val string, structField reflect.StructField, value reflect.Val
 	value.Set(reflect.ValueOf(t))
 	return nil
 }
-
-// Don't pass in pointers to bind to. Can lead to bugs. See:
-// https://github.com/codegangsta/martini-contrib/issues/40
-// https://github.com/codegangsta/martini-contrib/pull/34#issuecomment-29683659
-func ensureNotPointer(obj interface{}) {
-	if reflect.TypeOf(obj).Kind() == reflect.Ptr {
-		panic("Pointers are not accepted as binding models")
-	}
-}

errors.go

@@ -148,7 +148,7 @@ func (a errorMsgs) String() string {
 	}
 	var buffer bytes.Buffer
 	for i, msg := range a {
-		fmt.Fprintf(&buffer, "Error #%02d: %s\n", (i + 1), msg.Err)
+		fmt.Fprintf(&buffer, "Error #%02d: %s\n", i+1, msg.Err)
 		if msg.Meta != nil {
 			fmt.Fprintf(&buffer, "     Meta: %v\n", msg.Meta)
 		}

examples/custom-validation/server.go

@@ -7,7 +7,7 @@ import (
 
 	"github.com/gin-gonic/gin"
 	"github.com/gin-gonic/gin/binding"
-	validator "gopkg.in/go-playground/validator.v8"
+	"gopkg.in/go-playground/validator.v8"
 )
 
 type Booking struct {

examples/realtime-advanced/stats.go

@@ -29,8 +29,8 @@ func statsWorker() {
 			"timestamp":  uint64(time.Now().Unix()),
 			"HeapInuse":  stats.HeapInuse,
 			"StackInuse": stats.StackInuse,
-			"Mallocs":    (stats.Mallocs - lastMallocs),
-			"Frees":      (stats.Frees - lastFrees),
+			"Mallocs":    stats.Mallocs - lastMallocs,
+			"Frees":      stats.Frees - lastFrees,
 			"Inbound":    uint64(messages.Get("inbound")),
 			"Outbound":   uint64(messages.Get("outbound")),
 			"Connected":  connectedUsers(),

gin.go

@@ -49,16 +49,6 @@ type RoutesInfo []RouteInfo
 // Create an instance of Engine, by using New() or Default()
 type Engine struct {
 	RouterGroup
-	delims           render.Delims
-	secureJsonPrefix string
-	HTMLRender       render.HTMLRender
-	FuncMap          template.FuncMap
-	allNoRoute       HandlersChain
-	allNoMethod      HandlersChain
-	noRoute          HandlersChain
-	noMethod         HandlersChain
-	pool             sync.Pool
-	trees            methodTrees
 
 	// Enables automatic redirection if the current route can't be matched but a
 	// handler for the path with (without) the trailing slash exists.
@@ -102,6 +92,17 @@ type Engine struct {
 	// Value of 'maxMemory' param that is given to http.Request's ParseMultipartForm
 	// method call.
 	MaxMultipartMemory int64
+
+	delims           render.Delims
+	secureJsonPrefix string
+	HTMLRender       render.HTMLRender
+	FuncMap          template.FuncMap
+	allNoRoute       HandlersChain
+	allNoMethod      HandlersChain
+	noRoute          HandlersChain
+	noMethod         HandlersChain
+	pool             sync.Pool
+	trees            methodTrees
 }
 
 var _ IRouter = &Engine{}

gin_integration_test.go

@@ -94,7 +94,7 @@ func TestUnixSocket(t *testing.T) {
 	c, err := net.Dial("unix", "/tmp/unix_unit_test")
 	assert.NoError(t, err)
 
-	fmt.Fprintf(c, "GET /example HTTP/1.0\r\n\r\n")
+	fmt.Fprint(c, "GET /example HTTP/1.0\r\n\r\n")
 	scanner := bufio.NewScanner(c)
 	var response string
 	for scanner.Scan() {

mode.go

@@ -14,9 +14,9 @@ import (
 const ENV_GIN_MODE = "GIN_MODE"
 
 const (
-	DebugMode   string = "debug"
-	ReleaseMode string = "release"
-	TestMode    string = "test"
+	DebugMode   = "debug"
+	ReleaseMode = "release"
+	TestMode    = "test"
 )
 const (
 	debugCode = iota

tree.go

@@ -87,13 +87,13 @@ const (
 
 type node struct {
 	path      string
-	wildChild bool
-	nType     nodeType
-	maxParams uint8
 	indices   string
 	children  []*node
 	handlers  HandlersChain
 	priority  uint32
+	nType     nodeType
+	maxParams uint8
+	wildChild bool
 }
 
 // increments priority of the given child and reorders if necessary.
@@ -384,7 +384,7 @@ walk: // Outer loop for walking the tree
 					// Nothing found.
 					// We can recommend to redirect to the same URL without a
 					// trailing slash if a leaf exists for that path.
-					tsr = (path == "/" && n.handlers != nil)
+					tsr = path == "/" && n.handlers != nil
 					return
 				}
 
@@ -424,7 +424,7 @@ walk: // Outer loop for walking the tree
 						}
 
 						// ... but we can't
-						tsr = (len(path) == end+1)
+						tsr = len(path) == end+1
 						return
 					}
 
@@ -435,7 +435,7 @@ walk: // Outer loop for walking the tree
 						// No handle found. Check if a handle for this path + a
 						// trailing slash exists for TSR recommendation
 						n = n.children[0]
-						tsr = (n.path == "/" && n.handlers != nil)
+						tsr = n.path == "/" && n.handlers != nil
 					}
 
 					return
@@ -530,7 +530,7 @@ func (n *node) findCaseInsensitivePath(path string, fixTrailingSlash bool) (ciPa
 
 				// Nothing found. We can recommend to redirect to the same URL
 				// without a trailing slash if a leaf exists for that path
-				found = (fixTrailingSlash && path == "/" && n.handlers != nil)
+				found = fixTrailingSlash && path == "/" && n.handlers != nil
 				return
 			}
 

tree_test.go

@@ -5,22 +5,11 @@
 package gin
 
 import (
-	"fmt"
 	"reflect"
 	"strings"
 	"testing"
 )
 
-func printChildren(n *node, prefix string) {
-	fmt.Printf(" %02d:%02d %s%s[%d] %v %t %d \r\n", n.priority, n.maxParams, prefix, n.path, len(n.children), n.handlers, n.wildChild, n.nType)
-	for l := len(n.path); l > 0; l-- {
-		prefix += " "
-	}
-	for _, child := range n.children {
-		printChildren(child, prefix)
-	}
-}
-
 // Used as a workaround since we can't compare functions or their addressses
 var fakeHandlerValue string