Method Exec

interpreter/interpretable.go:940–968

Exec implements the InterpretableV2 interface method.

(frame *ExecutionFrame)

// Exec implements the InterpretableV2 interface method.
func (fold *evalFold) Exec(frame *ExecutionFrame) ref.Val {
	// Initialize the folder interface
	f := newFolder(fold, frame)
	defer releaseFolder(f)

	foldRange := fold.iterRange.Exec(frame)
	if types.IsUnknownOrError(foldRange) {
		return foldRange
	}
	if fold.iterVar2 != "" {
		var foldable traits.Foldable
		switch r := foldRange.(type) {
		case traits.Mapper:
			foldable = types.ToFoldableMap(r)
		case traits.Lister:
			foldable = types.ToFoldableList(r)
		default:
			return types.NewErrWithNodeID(fold.ID(), "unsupported comprehension range type: %T", foldRange)
		}
		foldable.Fold(f)
		return f.evalResult()
	}

	if !foldRange.Type().HasTrait(traits.IterableType) {
		return types.ValOrErr(foldRange, "got '%T', expected iterable type", foldRange)
	}
	iterable := foldRange.(traits.Iterable)
	return f.foldIterable(iterable)
}

// Eval implements the Interpretable interface method.
func (fold *evalFold) Eval(ctx Activation) ref.Val {