}

    public void mutate(String method, Runnable action) {
        if (!task.getState().isConfigurable()) {
            throw new IllegalStateException(format(method));
        }
        action.run();
    }

    public <T> T mutate(String method, Callable<T> action) {
        if (!task.getState().isConfigurable()) {
            throw new IllegalStateException(format(method));
        }

            if (isConfigurable()) {
                Object value = cachedInvoker.get();
                ((HasConfigurableValueInternal) value).implicitFinalizeValue();
            }
        }

        private boolean isProvider() {
            return Provider.class.isAssignableFrom(declaredType);
        }

        private boolean isConfigurable() {

        } else if (producer != null) {
            TaskInternal producerTask = (TaskInternal) producer.getTaskThatOwnsThisObject();
            if (producerTask != null && producerTask.getState().isConfigurable()) {
                // Currently cannot tell the difference between access from the producing task and access from outside, so assume
                // all access after the task has started execution is ok

    }

    public void setDidWork(boolean didWork) {
        this.didWork = didWork;
    }

    @Override
    public boolean getExecuted() {
        return outcome != null;
    }

    public boolean isConfigurable() {
        return !getExecuted() && !executing;
    }

    @Nullable
    public TaskExecutionOutcome getOutcome() {
        return outcome;
    }

		}
		*ptr = v
	default:
		panic(fmt.Sprintf("unsupported config field type %v", f.field.Type))
	}
	return nil
}

// isConfigurable returns true if name is either the name of a config field, or
// a valid value for a multi-choice config field.
func isConfigurable(name string) bool {
	_, ok := configFieldMap[name]
	return ok
}

// isBoolConfig returns true if name is either name of a boolean config field,

				if len(s) == 2 {
					value = s[1]
					if comment := strings.LastIndex(value, commentStart); comment != -1 {
						value = value[:comment]
					}
					value = strings.TrimSpace(value)
				}
				if isConfigurable(name) {
					// All non-bool options require inputs
					if len(s) == 1 && !isBoolConfig(name) {
						o.UI.PrintErr(fmt.Errorf("please specify a value, e.g. %s=<val>", name))
						continue
					}