use pointer receiver

Author: mattn

_example/vtable/main.go

@@ -3,14 +3,15 @@ package main
 import (
 	"database/sql"
 	"fmt"
-	"github.com/mattn/go-sqlite3"
 	"log"
+
+	"github.com/mattn/go-sqlite3"
 )
 
 func main() {
 	sql.Register("sqlite3_with_extensions", &sqlite3.SQLiteDriver{
 		ConnectHook: func(conn *sqlite3.SQLiteConn) error {
-			return conn.CreateModule("github", githubModule{})
+			return conn.CreateModule("github", &githubModule{})
 		},
 	})
 	db, err := sql.Open("sqlite3_with_extensions", ":memory:")

_example/vtable/vtable.go

@@ -19,7 +19,7 @@ type GithubRepo struct {
 type githubModule struct {
 }
 
-func (m githubModule) Create(c *sqlite3.SQLiteConn, args []string) (sqlite3.VTab, error) {
+func (m *githubModule) Create(c *sqlite3.SQLiteConn, args []string) (sqlite3.VTab, error) {
 	err := c.DeclareVTab(fmt.Sprintf(`
 		CREATE TABLE %s (
 			id INT,
@@ -33,11 +33,11 @@ func (m githubModule) Create(c *sqlite3.SQLiteConn, args []string) (sqlite3.VTab
 	return &ghRepoTable{}, nil
 }
 
-func (m githubModule) Connect(c *sqlite3.SQLiteConn, args []string) (sqlite3.VTab, error) {
+func (m *githubModule) Connect(c *sqlite3.SQLiteConn, args []string) (sqlite3.VTab, error) {
 	return m.Create(c, args)
 }
 
-func (m githubModule) DestroyModule() {}
+func (m *githubModule) DestroyModule() {}
 
 type ghRepoTable struct {
 	repos []GithubRepo