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Refactor: add a private constructor for connector #1115

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Refactor: add a private constructor for connector #1115

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4 changes: 4 additions & 0 deletions connector.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,10 @@ type connector struct {
cfg *Config // immutable private copy.
}

func newConnector(cfg *Config) *connector {
return &connector{cfg: cfg}
}

// Connect implements driver.Connector interface.
// Connect returns a connection to the database.
func (c *connector) Connect(ctx context.Context) (driver.Conn, error) {
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11 changes: 3 additions & 8 deletions driver.go
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Original file line number Diff line number Diff line change
Expand Up @@ -74,10 +74,7 @@ func (d MySQLDriver) Open(dsn string) (driver.Conn, error) {
if err != nil {
return nil, err
}
c := &connector{
cfg: cfg,
}
return c.Connect(context.Background())
return newConnector(cfg).Connect(context.Background())
}

func init() {
Expand All @@ -92,7 +89,7 @@ func NewConnector(cfg *Config) (driver.Connector, error) {
if err := cfg.normalize(); err != nil {
return nil, err
}
return &connector{cfg: cfg}, nil
return newConnector(cfg), nil
}

// OpenConnector implements driver.DriverContext.
Expand All @@ -101,7 +98,5 @@ func (d MySQLDriver) OpenConnector(dsn string) (driver.Connector, error) {
if err != nil {
return nil, err
}
return &connector{
cfg: cfg,
}, nil
return newConnector(cfg), nil
}