test case

[dima117]

Bemhint says that this object is correct, but actually it is invalid ('elem' field expected):

(
    {
        mustDeps: {
            elems: [{ }]
        }
    }
)

[qfox]

Why? All is totally fine with your sample.

In your case using elems is the same as using elem.

There is difference between elem and elems for chunks with block property like:

({
  block: 'another-block',
  [prop]: ['elem1', 'elem2', ...]
})

With 'elem' it will be resolved to:

([
  {block: 'another-block', elem: 'elem1'},
  {block: 'another-block', elem: 'elem2'} 
])

With 'elems' to:

([
  {block: 'another-block'}
  {block: 'another-block', elem: 'elem1'},
  {block: 'another-block', elem: 'elem2'}
])

So the difference in requiring block chunk itself.

[qfox]

Ah, I just get that looks like it should report this one:

[{
  mustDeps: {
    elem: [{ … }] // elem can be only {string|string[]}, not {object[]}
  }
}]

And the initial case is also actual. My bad.