}
        }

        fun visitValue(value: DeclarativeDocument.ValueNode) {
            when (value) {
                is ValueFactoryNode -> {
                    valueFactoryResolution[value] = resolveValueFactory(value)
                    value.values.forEach(::visitValue)
                }
                is DeclarativeDocument.ValueNode.LiteralValueNode -> Unit

        public void calculateExecutionTimeValue(Action<? super ExecutionTimeValue<? extends Iterable<? extends T>>> visitor) {
            ExecutionTimeValue<? extends T> value = provider.calculateExecutionTimeValue();
            visitValue(visitor, value);
        }

        @Override
        public ValueProducer getProducer() {
            return provider.getProducer();
        }

        @Override

					if val.Op == OpPhi || !destVisited {
						t.visitValue(val)
					}
				}
				// propagates constants facts through CFG, taking condition test
				// into account
				if !destVisited {
					t.propagate(dest)
				}
			}
			continue
		}
		if len(t.uses) > 0 {
			use := t.uses[0]
			t.uses = t.uses[1:]
			t.visitValue(use)
			continue
		}
		break
	}