38 lines
692 B
Go
38 lines
692 B
Go
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package errchan
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import (
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"fmt"
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"strings"
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)
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type ErrChan struct {
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C chan error
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}
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// New returns an error channel of max length 'n'
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// errors can be sent to the ErrChan.C channel, and will be returned when
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// ErrChan.Error() is called.
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func New(n int) *ErrChan {
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return &ErrChan{
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C: make(chan error, n),
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}
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}
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// Error closes the ErrChan.C channel and returns an error if there are any
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// non-nil errors, otherwise returns nil.
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func (e *ErrChan) Error() error {
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close(e.C)
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var out string
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for err := range e.C {
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if err != nil {
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out += "[" + err.Error() + "], "
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}
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}
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if out != "" {
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return fmt.Errorf("Errors encountered: " + strings.TrimRight(out, ", "))
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}
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return nil
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}
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