Report full details of inference errors
When the old suggestion machinery was removed by @brson in https://github.com/rust-lang/rust/pull/37057, it was not completely removed. There was a bit of code that had the job of going through errors and finding those for which suggestions were applicable, and it remained, causing us not to emit the full details of such errors. This PR removes that.
I've also added various lifetime tests to the UI test suite (so you can also see the before/after there). I have some concrete thoughts on how to improve these cases and am planning on writing those up in some mentoring issues (@CengizIO has expressed interest in working on those changes, so I plan to work with him on it, at least to start).
cc @jonathandturner
Previously, mdBook used JavaScript to add header links, so we
skipped checking the book. As of
https://github.com/rust-lang/rust/pull/39966, it no longer does,
so we can start checking again.
There is a twist, though: it uses name instead of id, so let's test
for both. They're both valid links anyway, so it's good to have the
checker check anyway.
Rust Book: Generics: Resolving ambiguities
- Add a small section to generics.md to explain how ambiguities in type inference can be resolved using the `::<>` syntax.
- Add links from syntax-index.md and iterators.md.
- Minor edits to iterators.md and structs.md.
This reverts commit 7f1d1c6d9a.
The original commit was created because mdBook and rustdoc had
different generation algorithms for header links; now with
https://github.com/rust-lang/rust/pull/39966 , the algorithms
are the same. So let's undo this change.
... when I came across this problem, I said "eh, this isn't fun,
but it doesn't take that long." I probably should have just actually
taken the time to fix upstream, given that they were amenable. Oh
well!
Update mdbook version
This version of mdbook includes
https://github.com/azerupi/mdBook/pull/207 , which is needed so that
we can start doing linkchecker on the various books.
- Add a small section to generics.md to explain how ambiguities in type
inference can be resolved using the ::<> syntax.
- Add links from syntax-index.md and iterators.md.
- Minor edits to iterators.md and structs.md.
Docs: Better explanation of return values for min, max functions for the Iterator trait
Added an explanation that `None` is returned if an iterator is empty.
Also added examples for `max` and `min`. I chose not to add examples for other functions like `max_by_key` etc. so that the examples stay concised and focused on the main functionality.
So I just encountered this error for the first time. It's unclear what
it means, why I encountered it, or how to fix it. But worst of all, it
has a random newline and weird indentation! This commit fixes that last
bit.
Fixup String::split_off documentation
1. Clarify that `String::split_off` returns one string and modifies self in-place. The documentation implied that it returns two new strings.
2. Make the documentation mirror `Vec::split_off`.
Correct a typo in procedural macros chapter of the Book.
A simple and short correction for procedural macros chapter of the Rust Programming Language Book.
