Squashed 'backend/go-sqlite3/' content from commit 20826e8

git-subtree-dir: backend/go-sqlite3
git-subtree-split: 20826e87d8f061d0a7266562f43950ee06e2e9c0

sqlite3_sql.go

@@ -0,0 +1,53 @@
+// Copyright (C) 2019 Yasuhiro Matsumoto <mattn.jp@gmail.com>.
+//
+// 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
+
+import (
+	"context"
+	"database/sql/driver"
+)
+
+// Ping implement Pinger.
+func (c *SQLiteConn) Ping(ctx context.Context) error {
+	if c.db == nil {
+		// must be ErrBadConn for sql to close the database
+		return driver.ErrBadConn
+	}
+	return nil
+}
+
+// QueryContext implement QueryerContext.
+func (c *SQLiteConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
+	return c.query(ctx, query, args)
+}
+
+// ExecContext implement ExecerContext.
+func (c *SQLiteConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
+	return c.exec(ctx, query, args)
+}
+
+// PrepareContext implement ConnPrepareContext.
+func (c *SQLiteConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
+	return c.prepare(ctx, query)
+}
+
+// BeginTx implement ConnBeginTx.
+func (c *SQLiteConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
+	return c.begin(ctx)
+}
+
+// QueryContext implement QueryerContext.
+func (s *SQLiteStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
+	return s.query(ctx, args)
+}
+
+// ExecContext implement ExecerContext.
+func (s *SQLiteStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
+	return s.exec(ctx, args)
+}