[Dependency Scanning] Specify Source Locations For Missing Module Dependencies #73600
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@swift-ci test |
artemcm
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May 13, 2024
| // CHECK-NEXT: 2 | // swift-module-flags: -module-name Z | ||
| // CHECK-NEXT: 3 | import missing_module | ||
| // CHECK-NEXT: | |- error: Unable to find module dependency: 'missing_module' | ||
| // CHECK-NEXT: | |- note: a dependency of Swift module 'Z': '{{.*}}{{/|\\}}Z.swiftinterface' |
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A follow-up change will associate these notes with their corresponding source location of the importer of the given module in the dependency chain.
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owenv
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Waiting on swiftlang/llvm-project#8754 to land and auto-merge before this can land. |
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@swift-ci Please Build Toolchain Ubuntu 22.04 |
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@swift-ci Please Build Toolchain Ubuntu 22.04 (arm64) |
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…endencies This change modifies the dependency scanner to keep track of source locations of each encountered 'import' statement, in order to be able to emit diagnostics with source locations if an import failed to resolve. - Keep track of each 'import' statement's source buffer, line number, and column number when adding it. The dependency scanner utilizes separate compilation instances, and therefore separate Source Managers for scanning `import` statements of user sources and textual interfaces of Swift dependencies. Since import resolution may happen in the main scanner compilation instance while the `import` itself was found by an interface-scanning sub-instance, we cannot simply hold on to the import's `SourceLoc`. - Add libSwiftScan API for diagnostics to carry above source locations to clients.
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This change modifies the dependency scanner to keep track of source locations of each encountered
importstatement, in order to be able to emit diagnostics with source locations if an import failed to resolve.importstatement's source buffer, line number, and column number when adding it. The dependency scanner utilizes separate compilation instances, and therefore separate Source Managers for scanningimportstatements of user sources and textual interfaces of Swift dependencies. Since import resolution may happen in the main scanner compilation instance while theimportitself was found by an interface-scanning sub-instance, we cannot simply hold on to the import'sSourceLoc.Instead of unlocatable:
we will now get rich output: