UnmarshalText not working?

[fugkco]

I don't think this is a bug, I've a feeling I'm just being a dunce. But I'm struggling to get the code to go into TextUnmarshaler interface. Anyone know what I'm doing wrong?

package main

import (
	"errors"
	"testing"

	"github.com/pelletier/go-toml/v2"
)

type Packages map[string]any

type Config struct {
	Packages Packages `toml:"package"`
}

func (b *Packages) UnmarshalText(text []byte) error {
	return errors.New("never reached")
}

func TestUnmarshal(t *testing.T) {
	doc := []byte(`
[package."mypkg"]
somekey = "somevalue"
`)

	v := Config{}

	err := toml.Unmarshal(doc, &v)
	if err == nil {
		t.Fail()
	}
}

[fugkco]

ping @pelletier

[pelletier]

Sorry I missed this question; thank you for the ping.

The UnmarshalText method in this example is never called because this interface is only used on TOML strings. In this case, the interface is implemented on the table (modeled as a map in this example).

See the TextUnmarshal example. Also maybe this issue of somebody having a similar problem: #865.

[fugkco]

Is there any way to unmarshal the whole table instead of individual primitive types?

[pelletier]

At the moment the two potential features you may be interested in are todos (support toml.RawMessage #796 and toml.Unmarshaler #873).

If you want to describe your use-case maybe I can help find a workaround in the meantime!

[fugkco]

I guess I'm just trying to unmarshal a value that can be different objects. I'll see if I can find a different method to unmarshal it.