58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
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package pathmatch
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import (
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"bytes"
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"fmt"
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)
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const (
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internalErrorMessagePrefix = "Internal Error: "
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)
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type InternalErrorComplainer interface {
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error
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InternalErrorComplainer()
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}
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// internalInternalErrorComplainer is the only underlying implementation that fits the
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// InternalErrorComplainer interface, in this library.
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type internalInternalErrorComplainer struct {
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msg string
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}
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// newInternalErrorComplainer creates a new internalInternalErrorComplainer (struct) and
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// returns it as a InternalErrorComplainer (interface).
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func newInternalErrorComplainer(format string, a ...interface{}) InternalErrorComplainer {
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msg := fmt.Sprintf(format, a...)
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err := internalInternalErrorComplainer{
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msg:msg,
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}
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return &err
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}
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// Error method is necessary to satisfy the 'error' interface (and the InternalErrorComplainer
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// interface).
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func (err *internalInternalErrorComplainer) Error() string {
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var buffer bytes.Buffer
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buffer.WriteString(internalErrorMessagePrefix)
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buffer.WriteString(err.msg)
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return buffer.String()
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}
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// InternalErrorComplainer method is necessary to satisfy the 'InternalErrorComplainer' interface.
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// It exists to make this error type detectable in a Go type-switch.
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func (err *internalInternalErrorComplainer) InternalErrorComplainer() {
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// Nothing here.
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}
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