Attribute Types

[cueckoo]

Originally opened by @rawkode in cuelang/cue#898

I'm looking to add a @template(1) or @template("David") attribute to some Cue schemata.

The plan is to add a blox new Definition command to our CLI, that will consume these attributes.

A cue.Value is built up and rendered to JSON. However, everything within an attribute is considered a string, from what I can tell.

I've noticed that if I fmt.Println on the cue.Value returned from fieldIterator.Value() it prints string or int, but .Kind() returns bottom.

I've also tried getting the ast.Node from the fieldsIterator.Value().Source(), but it seems this returns the source for the label and the field.

I was assuming I could maybe switch on .Kind() to cast the string myself, but I've gotten a little lost now.

.Source() approach:

		fmt.Println(fieldValue)
		node := fieldsIterator.Value().Source()

		switch v := node.(type) {
		case *ast.Ident:
			fmt.Println("IDENT", v.Name)
		default:
			fmt.Println("NODE", v) # Always get this, with label and value; only expecting value
		}

.Kind() approach always returns _|_

		switch fieldsIterator.Value().Kind() {
		case cue.StringKind:
			fmt.Println("STRING BITCHES")
		case cue.IntKind:
			fmt.Println("INT")
		default:
			fmt.Println(fieldValue.Kind())
		}

Am I using these incorrectly?

[cueckoo]

Original reply by @verdverm in cuelang/cue#898 (comment)

Try IncompleteKind() instead, this will return the underlying type for fields which are still incomplete.

[cueckoo]

Original reply by @rawkode in cuelang/cue#898 (comment)

Thanks