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package raven
type causer interface {
Cause() error
}
type errWrappedWithExtra struct {
err error
extraInfo map[string]interface{}
}
func (ewx *errWrappedWithExtra) Error() string {
if ewx.err == nil {
return ""
}
return ewx.err.Error()
}
func (ewx *errWrappedWithExtra) Cause() error {
return ewx.err
}
func (ewx *errWrappedWithExtra) ExtraInfo() Extra {
return ewx.extraInfo
}
// WrapWithExtra adds extra data to an error before reporting to Sentry
func WrapWithExtra(err error, extraInfo map[string]interface{}) error {
return &errWrappedWithExtra{
err: err,
extraInfo: extraInfo,
}
}
// errWithJustExtra is a regular error with just the user-provided extras added but without a cause
type errWithJustExtra interface {
error
ExtraInfo() Extra
}
// ErrWithExtra links Error with attached user-provided extras that will be reported alongside the Error
type ErrWithExtra interface {
errWithJustExtra
Cause() error
}
// Iteratively fetches all the Extra data added to an error,
// and it's underlying errors. Extra data defined first is
// respected, and is not overridden when extracting.
func extractExtra(err error) Extra {
extra := Extra{}
currentErr := err
for currentErr != nil {
if errWithExtra, ok := currentErr.(errWithJustExtra); ok {
for k, v := range errWithExtra.ExtraInfo() {
extra[k] = v
}
}
if errWithCause, ok := currentErr.(causer); ok {
currentErr = errWithCause.Cause()
} else {
currentErr = nil
}
}
return extra
}
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