fixes

Author: wzshiming

chandir.go

@@ -6,7 +6,7 @@ package gotype
 type ChanDir int
 
 const (
-	RecvDir ChanDir             = 1 << iota // <-chan
-	SendDir                                 // chan<-
-	BothDir = RecvDir | SendDir             // chan
+	RecvDir ChanDir = 1 << iota         // chan<-
+	SendDir                             // <-chan
+	BothDir ChanDir = RecvDir | SendDir // chan
 )

chandir_string.go

@@ -201,7 +201,6 @@ loop:
 
 		switch l := len(values); l {
 		case 0:
-			continue loop
 		case 1:
 			val = r.EvalType(values[0])
 			if decl.Tok == token.CONST {
@@ -244,9 +243,6 @@ loop:
 			continue loop
 		}
 
-		if val == nil {
-			continue
-		}
 		for _, v := range s.Names {
 			if v.Name == "" {
 				continue

parser.go

@@ -1,6 +1,8 @@
 package gotype
 
-import "fmt"
+import (
+	"fmt"
+)
 
 func newTypeChan(v Type, dir ChanDir) Type {
 	return &typeChan{
@@ -18,9 +20,9 @@ type typeChan struct {
 func (t *typeChan) String() string {
 	switch t.dir {
 	case RecvDir:
-		return fmt.Sprintf("<-chan %v", t.elem)
-	case SendDir:
 		return fmt.Sprintf("chan<- %v", t.elem)
+	case SendDir:
+		return fmt.Sprintf("<-chan %v", t.elem)
 	case BothDir:
 	}
 	return fmt.Sprintf("chan %v", t.elem)