Property with no value doesn't imply true, using decorator without type.

[bychung]

Describe the bug
For the Vue components property, no-value property imply true.
(https://vuejs.org/v2/guide/components-props.html#Passing-a-Boolean)
But without type definition of Prop Decorator, it can't be worked.
Below is the example.

Template :

<my-template editable>

Component (maybe bug) :

@Prop() editable!: boolean;

=> editable is false.

Component (works well) :

@Prop(Boolean) editable!: boolean;

=> editable is true!

Of course, included 'reflect-metadata' and set emitDecoratorMetadata to true.

[azollai]

I also would consider it as a bug
@Prop(Boolean) editable!: boolean;
is redundant and doesn't really fit to the whole purpose of the decorators.

I will try to create a fix for it. Is there anyone who has a suggestion for the solution?

[CostaIsNotAvailable]

https://github.com/kaorun343/vue-property-decorator#if-youd-like-to-set-type-property-of-each-prop-value-from-its-type-definition-you-can-use-reflect-metadata