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Add error handling for nil DialContextFunc

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Introduce ErrDialContextFuncIsNil to handle cases where the dial context function is not provided. Update WithDialContextFunc to return this error when a nil function is passed.
This commit is contained in:
Winni Neessen 2024-10-23 13:51:31 +02:00
parent 3251d74c36
commit 35f92f2ddc
Signed by: wneessen
GPG key ID: 385AC9889632126E
1 changed files with 6 additions and 0 deletions
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6
client.go
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@ -245,6 +245,9 @@ var (
// ErrSMTPAuthMethodIsNil indicates that the SMTP authentication method provided is nil // ErrSMTPAuthMethodIsNil indicates that the SMTP authentication method provided is nil
ErrSMTPAuthMethodIsNil = errors.New("SMTP auth method is nil") ErrSMTPAuthMethodIsNil = errors.New("SMTP auth method is nil")
// ErrDialContextFuncIsNil indicates that a required dial context function is not provided.
ErrDialContextFuncIsNil = errors.New("dial context function is nil")
) )
// NewClient creates a new Client instance with the provided host and optional configuration Option functions. // NewClient creates a new Client instance with the provided host and optional configuration Option functions.
@ -677,6 +680,9 @@ func WithoutNoop() Option {
// - An Option function that sets the custom DialContextFunc for the Client. // - An Option function that sets the custom DialContextFunc for the Client.
func WithDialContextFunc(dialCtxFunc DialContextFunc) Option { func WithDialContextFunc(dialCtxFunc DialContextFunc) Option {
return func(c *Client) error { return func(c *Client) error {
if dialCtxFunc == nil {
return ErrDialContextFuncIsNil
}
c.dialContextFunc = dialCtxFunc c.dialContextFunc = dialCtxFunc
return nil return nil
} }