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// Package maybedoer contains a pipeline of actions that might fail. If any action
// in the chain fails, no further actions take place and the error becomes the pipeline
// error.
package maybedoer
// Impl sequences a set of actions to be performed via calls to
// `Maybe` such that any previous error prevents new actions from being
// performed.
//
// This is, conceptually, just a go-ification of the Maybe monad.
type Impl struct {
err error
}
// Maybe performs `f` if no previous call to a Maybe'd action resulted
// in an error
func (c *Impl) Maybe(f func() error) {
if c.err == nil {
c.err = f()
}
}
// Error returns the first error encountered in the Error chain.
func (c *Impl) Error() error {
return c.err
}
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