TOML Integer cannot be unmarshalled as a float32

[jkongie]

Describe the bug
Marshalling a struct with a Float value as an integer returns output which when Unmarshalled back into the struct, returns an error toml: cannot store TOML integer into a Go float32.

To Reproduce

package main
import (
	"fmt"
	"github.com/pelletier/go-toml/v2"
)
type Foo struct {
	Float float32
}
func main() {
	foo := Foo{
		Float: 1,
	}
	b, err := toml.Marshal(foo)
	if err != nil {
		fmt.Println(err)
	}
	fmt.Println(string(b))
	// Output: Float = 1
	foo2 := Foo{}
	err = toml.Unmarshal(b, &foo2)
	if err != nil {
		fmt.Println(err)
		// Output: toml: cannot store TOML integer into a Go float32
	}
	fmt.Println(foo2)
}

Output

Float = 1

toml: cannot store TOML integer into a Go float32
{0}

ExpectedOutput

Float = 1.0

{1}

Expected behavior

It should be able to marshal an struct with a integer as a float, and unmarshal it back into the struct.

Versions

• go-toml: v2.0.0-beta.3
• go: version 1.16
• operating system: macOS

Additional context
Add any other context about the problem here that you think may help to diagnose.

[pelletier]

Thanks for the report! I wonder if some other conversions are missing.

[pelletier]

This should be fixed in 4984dcb. Feel free to re-open if not!