Jonathan Brouwer 6e3c17424d Rollup merge of #153702 - SpriteOvO:guard-matcher, r=davidtwco ...

Add macro matcher for `guard` fragment specifier

Tracking issue #153104

This PR implements a new `guard` macro matcher to match `if-let` guards (specifically [`MatchArmGuard`](https://github.com/rust-lang/reference/blob/50a1075e879be75aeec436252c84eef0fad489f4/src/expressions/match-expr.md#match-guards)). In the upcoming PR, we can use this new matcher in the `matches!` and `assert_matches!` macros to support their use with `if-let` guards. (see #152313)

The original `Expr` used to represent a guard has been wrapped in a new `Guard` type, allowing us to carry the span information of the leading `if` keyword. However, it might be even better to include the `if` keyword in the `Guard` type as well? I've left a FIXME comment in the code.

2026-03-25 19:52:50 +01:00

..

src

Rollup merge of #153702 - SpriteOvO:guard-matcher, r=davidtwco

2026-03-25 19:52:50 +01:00

Cargo.toml

Convert to inline diagnostics in rustc_parse

2026-02-07 10:30:40 +01:00