1package convert
2
3import (
4	"github.com/zclconf/go-cty/cty"
5)
6
7// dynamicFixup deals with just-in-time conversions of values that were
8// input-typed as cty.DynamicPseudoType during analysis, ensuring that
9// we end up with the desired output type once the value is known, or
10// failing with an error if that is not possible.
11//
12// This is in the spirit of the cty philosophy of optimistically assuming that
13// DynamicPseudoType values will become the intended value eventually, and
14// dealing with any inconsistencies during final evaluation.
15func dynamicFixup(wantType cty.Type) conversion {
16	return func(in cty.Value, path cty.Path) (cty.Value, error) {
17		ret, err := Convert(in, wantType)
18		if err != nil {
19			// Re-wrap this error so that the returned path is relative
20			// to the caller's original value, rather than relative to our
21			// conversion value here.
22			return cty.NilVal, path.NewError(err)
23		}
24		return ret, nil
25	}
26}
27
28// dynamicPassthrough is an identity conversion that is used when the
29// target type is DynamicPseudoType, indicating that the caller doesn't care
30// which type is returned.
31func dynamicPassthrough(in cty.Value, path cty.Path) (cty.Value, error) {
32	return in, nil
33}
34