errval

package

v0.14.0 Latest Latest Go to latest Published: Sep 20, 2025 License: MIT Imports: 5 Imported by: 0

Details

Package errval provides a way to add values to errors.

Example ¶

err := errbase.New("error")
err = Wrap(err, "foo", "bar")
vals := Get(err)
fmt.Println(vals["foo"])

Output:

bar

This section is empty.

View Source

var VerboseWriter func(io.Writer, any) = prettyWrite

VerboseWriter writes the representation of a value in a verbose message.

It can be changed in order to customize how values are formatted.

By default it uses pretty.Write.

func All(err error) iter.Seq2[string, any]

All returns a iter.Seq2 of values added to an error.

func Get(err error) map[string]any

Get returns the values added to an error.

func Wrap(err error, key string, val any) error

Wrap adds a value to an error.

The verbose message is "value <key> = <val>". The value is written using the VerboseWriter function.

This section is empty.