Simplify `TokenTree` and fix `macro_rules!` bugs
This PR
- fixes#39390, fixes#39403, and fixes#39404 (each is a [breaking-change], see issues for examples),
- fixes#39889,
- simplifies and optimizes macro invocation parsing,
- cleans up `ext::tt::transcribe`,
- removes `tokenstream::TokenTree::Sequence` and `Token::MatchNt`,
- instead, adds a new type `ext::tt::quoted::TokenTree` for use by `macro_rules!` (`ext::tt`)
- removes `parser.quote_depth` and `parser.parsing_token_tree`, and
- removes `quote_matcher!`.
- Instead, use `quote_tokens!` and `ext::tt::quoted::parse` the result with `expect_matchers=true`.
- I found no outside uses of `quote_matcher!` when searching Rust code on Github.
r? @nrc
Move two large error_reporting fn's to a separate file
Hello!
I tried to make `librustc/infer/error_reporting,rs` more readable by modularizing it and moving its two largest functions to a separate file.
If you have any suggestions, please send it right away! 🚀
Thanks goes to @nikomatsakis for supporting.
added Error and Display impl for std::ffi::FromBytesWithNulError
Fixes#39925.
This is my first PR, so I wasn't quite sure about the stability annotation.
impl RangeArgument for RangeInclusive and add appropriate tests
Now that `RangeArgument` returns a `Bound`, the impl for `RangeInclusive` is natural to implement and all that's required are tests around it.
Simplify `TokenTree` and fix `macro_rules!` bugs
This PR
- fixes#39390, fixes#39403, and fixes#39404 (each is a [breaking-change], see issues for examples),
- fixes#39889,
- simplifies and optimizes macro invocation parsing,
- cleans up `ext::tt::transcribe`,
- removes `tokenstream::TokenTree::Sequence` and `Token::MatchNt`,
- instead, adds a new type `ext::tt::quoted::TokenTree` for use by `macro_rules!` (`ext::tt`)
- removes `parser.quote_depth` and `parser.parsing_token_tree`, and
- removes `quote_matcher!`.
- Instead, use `quote_tokens!` and `ext::tt::quoted::parse` the result with `expect_matchers=true`.
- I found no outside uses of `quote_matcher!` when searching Rust code on Github.
r? @nrc
sort unstable book alphabetically
I made these the same order as they were in the compiler, but for no good reason. Much easier to find out what you need when they're sorted alphabetically
r? @frewsxcv
Structs doc: Change "pointers" to "references"
Let's call them "references" instead of "pointers". That's how they're called in chapter 4.9 "References and Borrowing".
r? @steveklabnik
I made these the same order as they were in the compiler, but for no good reason. Much easier to find out what you need when they're sorted alphabetically
