update go version to 1.19

.github/workflows/go.yaml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        go: ['1.18', '1.19', '1.20']
+        go: ['1.19', '1.20', '1.21']
       fail-fast: false
     env:
       OS: ${{ matrix.os }}
@@ -64,7 +64,7 @@ jobs:
 
     strategy:
       matrix:
-        go: ['1.18', '1.19', '1.20']
+        go: ['1.19', '1.20', '1.21']
       fail-fast: false
     env:
       OS: windows-latest

_example/limit/limit.go

@@ -10,9 +10,9 @@ import (
 	"github.com/mattn/go-sqlite3"
 )
 
-func createBulkInsertQuery(n int, start int) (query string, args []interface{}) {
+func createBulkInsertQuery(n int, start int) (query string, args []any) {
 	values := make([]string, n)
-	args = make([]interface{}, n*2)
+	args = make([]any, n*2)
 	pos := 0
 	for i := 0; i < n; i++ {
 		values[i] = "(?, ?)"
@@ -27,7 +27,7 @@ func createBulkInsertQuery(n int, start int) (query string, args []interface{})
 	return
 }
 
-func bulkInsert(db *sql.DB, query string, args []interface{}) (err error) {
+func bulkInsert(db *sql.DB, query string, args []any) (err error) {
 	stmt, err := db.Prepare(query)
 	if err != nil {
 		return

_example/vtable/vtable.go

@@ -93,7 +93,7 @@ func (vc *ghRepoCursor) Column(c *sqlite3.SQLiteContext, col int) error {
 	return nil
 }
 
-func (vc *ghRepoCursor) Filter(idxNum int, idxStr string, vals []interface{}) error {
+func (vc *ghRepoCursor) Filter(idxNum int, idxStr string, vals []any) error {
 	vc.index = 0
 	return nil
 }

_example/vtable_eponymous_only/vtable.go

@@ -77,7 +77,7 @@ func (vc *seriesCursor) Column(c *sqlite3.SQLiteContext, col int) error {
 	return nil
 }
 
-func (vc *seriesCursor) Filter(idxNum int, idxStr string, vals []interface{}) error {
+func (vc *seriesCursor) Filter(idxNum int, idxStr string, vals []any) error {
 	switch {
 	case len(vals) < 1:
 		vc.seriesTable.start = 0

backup_test.go

@@ -3,6 +3,7 @@
 // Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
+//go:build cgo
 // +build cgo
 
 package sqlite3

callback.go

@@ -100,13 +100,13 @@ func preUpdateHookTrampoline(handle unsafe.Pointer, dbHandle uintptr, op int, db
 // Use handles to avoid passing Go pointers to C.
 type handleVal struct {
 	db  *SQLiteConn
-	val interface{}
+	val any
 }
 
 var handleLock sync.Mutex
 var handleVals = make(map[unsafe.Pointer]handleVal)
 
-func newHandle(db *SQLiteConn, v interface{}) unsafe.Pointer {
+func newHandle(db *SQLiteConn, v any) unsafe.Pointer {
 	handleLock.Lock()
 	defer handleLock.Unlock()
 	val := handleVal{db: db, val: v}
@@ -124,7 +124,7 @@ func lookupHandleVal(handle unsafe.Pointer) handleVal {
 	return handleVals[handle]
 }
 
-func lookupHandle(handle unsafe.Pointer) interface{} {
+func lookupHandle(handle unsafe.Pointer) any {
 	return lookupHandleVal(handle).val
 }
 
@@ -238,7 +238,7 @@ func callbackArg(typ reflect.Type) (callbackArgConverter, error) {
 	switch typ.Kind() {
 	case reflect.Interface:
 		if typ.NumMethod() != 0 {
-			return nil, errors.New("the only supported interface type is interface{}")
+			return nil, errors.New("the only supported interface type is any")
 		}
 		return callbackArgGeneric, nil
 	case reflect.Slice:
@@ -360,11 +360,11 @@ func callbackRetGeneric(ctx *C.sqlite3_context, v reflect.Value) error {
 	}
 
 	cb, err := callbackRet(v.Elem().Type())
-        if err != nil {
-                return err
-        }
+	if err != nil {
+		return err
+	}
 
-        return cb(ctx, v.Elem())
+	return cb(ctx, v.Elem())
 }
 
 func callbackRet(typ reflect.Type) (callbackRetConverter, error) {

callback_test.go

@@ -3,6 +3,7 @@
 // Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
+//go:build cgo
 // +build cgo
 
 package sqlite3
@@ -53,7 +54,7 @@ func TestCallbackArgCast(t *testing.T) {
 
 func TestCallbackConverters(t *testing.T) {
 	tests := []struct {
-		v   interface{}
+		v   any
 		err bool
 	}{
 		// Unfortunately, we can't tell which converter was returned,
@@ -104,7 +105,7 @@ func TestCallbackConverters(t *testing.T) {
 }
 
 func TestCallbackReturnAny(t *testing.T) {
-	udf := func() interface{} {
+	udf := func() any {
 		return 1
 	}
 

convert.go

@@ -23,7 +23,7 @@ var errNilPtr = errors.New("destination pointer is nil") // embedded in descript
 // convertAssign copies to dest the value in src, converting it if possible.
 // An error is returned if the copy would result in loss of information.
 // dest should be a pointer type.
-func convertAssign(dest, src interface{}) error {
+func convertAssign(dest, src any) error {
 	// Common cases, without reflect.
 	switch s := src.(type) {
 	case string:
@@ -55,7 +55,7 @@ func convertAssign(dest, src interface{}) error {
 			}
 			*d = string(s)
 			return nil
-		case *interface{}:
+		case *any:
 			if d == nil {
 				return errNilPtr
 			}
@@ -97,7 +97,7 @@ func convertAssign(dest, src interface{}) error {
 		}
 	case nil:
 		switch d := dest.(type) {
-		case *interface{}:
+		case *any:
 			if d == nil {
 				return errNilPtr
 			}
@@ -149,7 +149,7 @@ func convertAssign(dest, src interface{}) error {
 			*d = bv.(bool)
 		}
 		return err
-	case *interface{}:
+	case *any:
 		*d = src
 		return nil
 	}
@@ -256,7 +256,7 @@ func cloneBytes(b []byte) []byte {
 	return c
 }
 
-func asString(src interface{}) string {
+func asString(src any) string {
 	switch v := src.(type) {
 	case string:
 		return v

doc.go

@@ -5,63 +5,63 @@ This works as a driver for database/sql.
 
 Installation
 
-    go get github.com/mattn/go-sqlite3
+	go get github.com/mattn/go-sqlite3
 
-Supported Types
+# Supported Types
 
 Currently, go-sqlite3 supports the following data types.
 
-    +------------------------------+
-    |go        | sqlite3           |
-    |----------|-------------------|
-    |nil       | null              |
-    |int       | integer           |
-    |int64     | integer           |
-    |float64   | float             |
-    |bool      | integer           |
-    |[]byte    | blob              |
-    |string    | text              |
-    |time.Time | timestamp/datetime|
-    +------------------------------+
-
-SQLite3 Extension
+	+------------------------------+
+	|go        | sqlite3           |
+	|----------|-------------------|
+	|nil       | null              |
+	|int       | integer           |
+	|int64     | integer           |
+	|float64   | float             |
+	|bool      | integer           |
+	|[]byte    | blob              |
+	|string    | text              |
+	|time.Time | timestamp/datetime|
+	+------------------------------+
+
+# SQLite3 Extension
 
 You can write your own extension module for sqlite3. For example, below is an
 extension for a Regexp matcher operation.
 
-    #include <pcre.h>
-    #include <string.h>
-    #include <stdio.h>
-    #include <sqlite3ext.h>
-
-    SQLITE_EXTENSION_INIT1
-    static void regexp_func(sqlite3_context *context, int argc, sqlite3_value **argv) {
-      if (argc >= 2) {
-        const char *target  = (const char *)sqlite3_value_text(argv[1]);
-        const char *pattern = (const char *)sqlite3_value_text(argv[0]);
-        const char* errstr = NULL;
-        int erroff = 0;
-        int vec[500];
-        int n, rc;
-        pcre* re = pcre_compile(pattern, 0, &errstr, &erroff, NULL);
-        rc = pcre_exec(re, NULL, target, strlen(target), 0, 0, vec, 500);
-        if (rc <= 0) {
-          sqlite3_result_error(context, errstr, 0);
-          return;
-        }
-        sqlite3_result_int(context, 1);
-      }
-    }
-
-    #ifdef _WIN32
-    __declspec(dllexport)
-    #endif
-    int sqlite3_extension_init(sqlite3 *db, char **errmsg,
-          const sqlite3_api_routines *api) {
-      SQLITE_EXTENSION_INIT2(api);
-      return sqlite3_create_function(db, "regexp", 2, SQLITE_UTF8,
-          (void*)db, regexp_func, NULL, NULL);
-    }
+	#include <pcre.h>
+	#include <string.h>
+	#include <stdio.h>
+	#include <sqlite3ext.h>
+
+	SQLITE_EXTENSION_INIT1
+	static void regexp_func(sqlite3_context *context, int argc, sqlite3_value **argv) {
+	  if (argc >= 2) {
+	    const char *target  = (const char *)sqlite3_value_text(argv[1]);
+	    const char *pattern = (const char *)sqlite3_value_text(argv[0]);
+	    const char* errstr = NULL;
+	    int erroff = 0;
+	    int vec[500];
+	    int n, rc;
+	    pcre* re = pcre_compile(pattern, 0, &errstr, &erroff, NULL);
+	    rc = pcre_exec(re, NULL, target, strlen(target), 0, 0, vec, 500);
+	    if (rc <= 0) {
+	      sqlite3_result_error(context, errstr, 0);
+	      return;
+	    }
+	    sqlite3_result_int(context, 1);
+	  }
+	}
+
+	#ifdef _WIN32
+	__declspec(dllexport)
+	#endif
+	int sqlite3_extension_init(sqlite3 *db, char **errmsg,
+	      const sqlite3_api_routines *api) {
+	  SQLITE_EXTENSION_INIT2(api);
+	  return sqlite3_create_function(db, "regexp", 2, SQLITE_UTF8,
+	      (void*)db, regexp_func, NULL, NULL);
+	}
 
 It needs to be built as a so/dll shared library. And you need to register
 the extension module like below.
@@ -77,7 +77,7 @@ Then, you can use this extension.
 
 	rows, err := db.Query("select text from mytable where name regexp '^golang'")
 
-Connection Hook
+# Connection Hook
 
 You can hook and inject your code when the connection is established by setting
 ConnectHook to get the SQLiteConn.
@@ -95,13 +95,13 @@ You can also use database/sql.Conn.Raw (Go >= 1.13):
 	conn, err := db.Conn(context.Background())
 	// if err != nil { ... }
 	defer conn.Close()
-	err = conn.Raw(func (driverConn interface{}) error {
+	err = conn.Raw(func (driverConn any) error {
 		sqliteConn := driverConn.(*sqlite3.SQLiteConn)
 		// ... use sqliteConn
 	})
 	// if err != nil { ... }
 
-Go SQlite3 Extensions
+# Go SQlite3 Extensions
 
 If you want to register Go functions as SQLite extension functions
 you can make a custom driver by calling RegisterFunction from
@@ -130,6 +130,5 @@ You can then use the custom driver by passing its name to sql.Open.
 	}
 
 See the documentation of RegisterFunc for more details.
-
 */
 package sqlite3

error_test.go

@@ -3,6 +3,7 @@
 // Use of this source code is governed by an MIT-style
 // license that can be found in the LICENSE file.
 
+//go:build cgo
 // +build cgo
 
 package sqlite3

go.mod

@@ -1,6 +1,6 @@
 module github.com/mattn/go-sqlite3
 
-go 1.16
+go 1.19
 
 retract (
  [v2.0.0+incompatible, v2.0.6+incompatible] // Accidental; no major changes or features.