-
Notifications
You must be signed in to change notification settings - Fork 12.7k
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Improve safety of LateContext::qpath_res
#81176
Conversation
Prevents LateContext::maybe_typeck_results() from returning data in a nested item without a body. Consequently, LateContext::qpath_res is less likely to ICE when called in a nested item. Would have prevented rust-lang/rust-clippy#4545, presumably.
Actually fulfills the documented guarantees.
(rust-highfive has picked a reviewer for you, use r? to override) |
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Clippy changes LGTM
r? @oli-obk perhaps? I'm not really familiar enough with this code to be certain about what the effects of this are so can't really review. |
@bors r+ |
📌 Commit eaba3da has been approved by |
⌛ Testing commit eaba3da with merge 1ef843b92ce45161f65092db403d4d22536ddd71... |
The job Click to see the possible cause of the failure (guessed by this bot)
|
💔 Test failed - checks-actions |
@bors retry |
Improve safety of `LateContext::qpath_res` This is my first rustc code change, inspired by hacking on clippy! The first change is to clear cached `TypeckResults` from `LateContext` when visiting a nested item. I took a hint from [here](https://github.com/rust-lang/rust/blob/5e91c4ecc09312d8b63d250a432b0f3ef83f1df7/compiler/rustc_privacy/src/lib.rs#L1300). Clippy has a `qpath_res` util function to avoid a possible ICE in `LateContext::qpath_res`. But the docs of `LateContext::qpath_res` promise no ICE. So this updates the `LateContext` method to keep its promises, and removes the util function. Related: rust-lang/rust-clippy#4545 CC ````@eddyb```` since you've done related work CC ````@flip1995```` FYI
Improve safety of `LateContext::qpath_res` This is my first rustc code change, inspired by hacking on clippy! The first change is to clear cached `TypeckResults` from `LateContext` when visiting a nested item. I took a hint from [here](https://github.com/rust-lang/rust/blob/5e91c4ecc09312d8b63d250a432b0f3ef83f1df7/compiler/rustc_privacy/src/lib.rs#L1300). Clippy has a `qpath_res` util function to avoid a possible ICE in `LateContext::qpath_res`. But the docs of `LateContext::qpath_res` promise no ICE. So this updates the `LateContext` method to keep its promises, and removes the util function. Related: rust-lang/rust-clippy#4545 CC `````@eddyb````` since you've done related work CC `````@flip1995````` FYI
Improve safety of `LateContext::qpath_res` This is my first rustc code change, inspired by hacking on clippy! The first change is to clear cached `TypeckResults` from `LateContext` when visiting a nested item. I took a hint from [here](https://github.com/rust-lang/rust/blob/5e91c4ecc09312d8b63d250a432b0f3ef83f1df7/compiler/rustc_privacy/src/lib.rs#L1300). Clippy has a `qpath_res` util function to avoid a possible ICE in `LateContext::qpath_res`. But the docs of `LateContext::qpath_res` promise no ICE. So this updates the `LateContext` method to keep its promises, and removes the util function. Related: rust-lang/rust-clippy#4545 CC ``````@eddyb`````` since you've done related work CC ``````@flip1995`````` FYI
Improve safety of `LateContext::qpath_res` This is my first rustc code change, inspired by hacking on clippy! The first change is to clear cached `TypeckResults` from `LateContext` when visiting a nested item. I took a hint from [here](https://github.com/rust-lang/rust/blob/5e91c4ecc09312d8b63d250a432b0f3ef83f1df7/compiler/rustc_privacy/src/lib.rs#L1300). Clippy has a `qpath_res` util function to avoid a possible ICE in `LateContext::qpath_res`. But the docs of `LateContext::qpath_res` promise no ICE. So this updates the `LateContext` method to keep its promises, and removes the util function. Related: rust-lang/rust-clippy#4545 CC ```````````@eddyb``````````` since you've done related work CC ```````````@flip1995``````````` FYI
Rollup of 10 pull requests Successful merges: - rust-lang#79570 (rustc: Stabilize `-Zrun-dsymutil` as `-Csplit-debuginfo`) - rust-lang#79819 (Add `SEMICOLON_IN_EXPRESSIONS_FROM_MACROS` lint) - rust-lang#79991 (rustdoc: Render HRTB correctly for bare functions) - rust-lang#80215 (Use -target when linking binaries for Mac Catalyst) - rust-lang#81158 (Point to span of upvar making closure FnMut) - rust-lang#81176 (Improve safety of `LateContext::qpath_res`) - rust-lang#81287 (Split rustdoc JSON types into separately versioned crate) - rust-lang#81306 (Fuse inner iterator in FlattenCompat and improve related tests) - rust-lang#81333 (clean up some const error reporting around promoteds) - rust-lang#81459 (Fix rustdoc text selection for page titles) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
Improve safety of `LateContext::qpath_res` This is my first rustc code change, inspired by hacking on clippy! The first change is to clear cached `TypeckResults` from `LateContext` when visiting a nested item. I took a hint from [here](https://github.com/rust-lang/rust/blob/5e91c4ecc09312d8b63d250a432b0f3ef83f1df7/compiler/rustc_privacy/src/lib.rs#L1300). Clippy has a `qpath_res` util function to avoid a possible ICE in `LateContext::qpath_res`. But the docs of `LateContext::qpath_res` promise no ICE. So this updates the `LateContext` method to keep its promises, and removes the util function. Related: rust-lang/rust-clippy#4545 CC ````````````@eddyb```````````` since you've done related work CC ````````````@flip1995```````````` FYI
This is my first rustc code change, inspired by hacking on clippy!
The first change is to clear cached
TypeckResults
fromLateContext
when visiting a nested item. I took a hint from here.Clippy has a
qpath_res
util function to avoid a possible ICE inLateContext::qpath_res
. But the docs ofLateContext::qpath_res
promise no ICE. So this updates theLateContext
method to keep its promises, and removes the util function.Related: rust-lang/rust-clippy#4545
CC @eddyb since you've done related work
CC @flip1995 FYI