Change a few error messages to give code suggestions #24683
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
PR rust-lang#24242 added the ability to the compiler to directly give suggestions about how to modify code to fix an error. The new errors look like this: foobar.rs:5:12: 5:25 error: expected a path on the left-hand side of `+`, not `&'static Copy` [E0178] foobar.rs:5 let x: &'static Copy + 'static; ^~~~~~~~~~~~~ foobar.rs:5:12: 5:35 help: try adding parentheses (per RFC 438): foobar.rs: let x: &'static (Copy + 'static); foobar.rs:2:13: 2:23 error: cast to unsized type: `&_` as `core::marker::Copy` foobar.rs:2 let x = &1 as Copy; ^~~~~~~~~~ foobar.rs:2:19: 2:23 help: try casting to a reference instead: foobar.rs: let x = &1 as &Copy; foobar.rs:7:24: 7:25 error: expected expression, found `;` foobar.rs:7 let x = box (1 + 1); ^ foobar.rs:7:13: 7:16 help: try using `box()` instead: foobar.rs: let x = box() (1 + 1); This also modifies compiletest to give the ability to directly test suggestions given by error messages.
|
r? @nrc (rust_highfive has picked a reviewer for you, use r? to override) |
bors
added a commit
that referenced
this pull request
Apr 23, 2015
This PR uses the inline error suggestions introduced in #24242 to modify a few existing `help` messages. The new errors look like this: foobar.rs:5:12: 5:25 error: expected a path on the left-hand side of `+`, not `&'static Copy` [E0178] foobar.rs:5 let x: &'static Copy + 'static; ^~~~~~~~~~~~~ foobar.rs:5:12: 5:35 help: try adding parentheses (per RFC 438): foobar.rs: let x: &'static (Copy + 'static); foobar.rs:2:13: 2:23 error: cast to unsized type: `&_` as `core::marker::Copy` foobar.rs:2 let x = &1 as Copy; ^~~~~~~~~~ foobar.rs:2:19: 2:23 help: try casting to a reference instead: foobar.rs: let x = &1 as &Copy; foobar.rs:7:24: 7:25 error: expected expression, found `;` foobar.rs:7 let x = box (1 + 1); ^ foobar.rs:7:13: 7:16 help: try using `box()` instead: foobar.rs: let x = box() (1 + 1); This also modifies compiletest to give the ability to directly test suggestions given by error messages.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR uses the inline error suggestions introduced in #24242 to modify a few existing
helpmessages. The new errors look like this:This also modifies compiletest to give the ability to directly test suggestions given by error messages.