return nil when last error is SQLITE_OK

mattn · mattn · commit 53900fb4f0eb · 2017-03-20T23:23:24.000+09:00
diff --git a/sqlite3.go b/sqlite3.go
@@ -400,8 +400,12 @@ func (c *SQLiteConn) AutoCommit() bool {
 }
 
 func (c *SQLiteConn) lastError() Error {
+	rv := C.sqlite3_errcode(c.db)
+	if rv == C.SQLITE_OK {
+		return nil
+	}
 	return Error{
-		Code:         ErrNo(C.sqlite3_errcode(c.db)),
+		Code:         ErrNo(rv),
 		ExtendedCode: ErrNoExtended(C.sqlite3_extended_errcode(c.db)),
 		err:          C.GoString(C.sqlite3_errmsg(c.db)),
 	}

Original file line number	Diff line number	Diff line change
`@@ -400,8 +400,12 @@ func (c *SQLiteConn) AutoCommit() bool {`
`400`	`400`	`}`
`401`	`401`
`402`	`402`	`func (c *SQLiteConn) lastError() Error {`
	`403`	`+ rv := C.sqlite3_errcode(c.db)`
	`404`	`+ if rv == C.SQLITE_OK {`
	`405`	`+ return nil`
	`406`	`+ }`
`403`	`407`	`return Error{`
`404`		`- Code: ErrNo(C.sqlite3_errcode(c.db)),`
	`408`	`+ Code: ErrNo(rv),`
`405`	`409`	`ExtendedCode: ErrNoExtended(C.sqlite3_extended_errcode(c.db)),`
`406`	`410`	`err: C.GoString(C.sqlite3_errmsg(c.db)),`
`407`	`411`	`}`