indentation misaligned due to `where` in comment

[nikomatsakis]

This example indents as shown:

/// - there must not exist an edge U->V in the graph where:
#[derive(Clone, PartialEq, Eq)]
    pub struct Region {
    entry: BasicBlockIndex,
    leaves: BTreeMap<BasicBlockIndex, usize>,
}

But I would expect:

/// - there must not exist an edge U->V in the graph where:
#[derive(Clone, PartialEq, Eq)]
pub struct Region { // <-- this should be flush with left margin!
    entry: BasicBlockIndex,
    leaves: BTreeMap<BasicBlockIndex, usize>,
}

Presumably the angle-bracket matching code is going a bit awry here.

cc @MicahChalmer

[nikomatsakis]

Interestingly, removing the #[derive] makes things work.

[MicahChalmer]

It's got nothing to do with the > this time. You can try removing it--the problem doesn't go away. The trigger is actually the word "where" in the comment. The code that looks for where clauses isn't checking that the word isn't part of a string or comment.

[MicahChalmer]

I changed the title of the issue to reflect the actual trigger...(title said it was due to the > but it's actually due to the where)

[mrBliss]

I'll fix this, I think I introduced this in b76e803.

[nikomatsakis]

thanks! 👍