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safe.go
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/
safe.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016-present Datadog, Inc.
package bindings
import (
wafErrors "github.com/DataDog/go-libddwaf/v3/errors"
"fmt"
"reflect"
"runtime"
"github.com/pkg/errors"
)
func newPanicError(in func() error, err error) *wafErrors.PanicError {
return &wafErrors.PanicError{
In: runtime.FuncForPC(reflect.ValueOf(in).Pointer()).Name(),
Err: err,
}
}
// tryCall calls function `f` and recovers from any panic occurring while it
// executes, returning it in a `PanicError` object type.
func tryCall(f func() error) (err error) {
defer func() {
r := recover()
if r == nil {
// Note that panic(nil) matches this case and cannot be really tested for.
return
}
switch actual := r.(type) {
case error:
err = errors.WithStack(actual)
case string:
err = errors.New(actual)
default:
err = fmt.Errorf("%v", r)
}
err = newPanicError(f, err)
}()
return f()
}