[Reflection] Add lightweight error handling to ReflectionContext #82345
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
Reflection metadata lookup failures are notoriously difficult to debug because there is no error handling in TypeLowering outside of compile-time #ifdef'd fprintf(stderr) calls. The nicest thing to do would be to adopt llvm::Expected<> but TypeLowering is also included in the standard library, which only has access to a tiny subset of the LLVM Support library. This patch adds a place to store a pointer to the first encountered error, which can then be converted to an llvm::Error at the API level. (cherry picked from commit 868c991)
|
test with swiftlang/llvm-project#10868 |
|
@swift-ci test macOS |
(cherry picked from commit 45198dc)
|
@swift-ci test |
|
test with swiftlang/llvm-project#10868 |
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Outdated suggestions cannot be applied.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.
Reflection metadata lookup failures are notoriously difficult to debug because there is no error handling in TypeLowering outside of compile-time #ifdef'd fprintf(stderr) calls. The nicest thing to do would be to adopt llvm::Expected<> but TypeLowering is also included in the standard library, which only has access to a tiny subset of the LLVM Support library. This patch adds a place to store a pointer to the first encountered error, which can then be converted to an llvm::Error at the API level.
(cherry picked from commit 868c991)
Explanation: Better error handling for reflection in LLDB.
Scope: LLDB
Original PR: #82244
Risk: Low. NFC
Reviewers: @tbkka