package go/ast
A CommentGroup represents a sequence of comments with no other tokens and no empty lines between.
Golang go/ast.CommentGroup type usage examples
Example 1:
func NodeDescription(n ast.Node) string {
switch n := n.(type) {
case *ast.ArrayType:
return "array type"
case *ast.AssignStmt:
return "assignment"
case *ast.CommentGroup:
return "comment group"
...
}
Example 2:
func parserComments(comments *ast.CommentGroup, funcName, controllerName, pkgpath string) error {
if comments != nil && comments.List != nil { // <-- here
for _, c := range comments.List {
t := strings.TrimSpace(strings.TrimLeft(c.Text, "//"))
if strings.HasPrefix(t, "@badrouting") {
.....
Reference :
http://golang.org/pkg/go/ast/#CommentGroup
