57 lines
1017 B
Go
57 lines
1017 B
Go
package exception
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import (
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"bytes"
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"fmt"
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"os"
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"strings"
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)
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type Custom interface {
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error
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With(innerErr ...error) Custom
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IsSameAs(err error) bool
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}
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func NewCustom(message string, innerErr ...error) Custom {
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return &custom{
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message: message,
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innerErrors: innerErr,
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}
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}
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type custom struct {
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message string
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innerErrors []error
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}
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func (ex *custom) With(innerErr ...error) Custom {
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ex.innerErrors = append(ex.innerErrors, innerErr...)
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return ex
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}
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func (ex *custom) IsSameAs(err error) bool {
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if err == nil {
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return false
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}
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return strings.HasPrefix(err.Error(), fmt.Sprintf("[%s]:", ex.message))
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}
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func (ex *custom) Error() string {
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buf := bytes.NewBufferString("")
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if len(ex.innerErrors) > 0 {
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for _, innerE := range ex.innerErrors {
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buf.WriteString(getOsNewLine())
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buf.WriteString(innerE.Error())
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}
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}
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return fmt.Sprintf("[%s]:%s", ex.message, buf.String())
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}
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func getOsNewLine() string {
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if fmt.Sprintf("%v", os.PathSeparator) != "/" {
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return "\n"
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}
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return "\r\n"
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}
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