[5.5] SwiftPM complains about @main in non main.swift file when integrated driver is not enabled #3575
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…driver is not enabled (swiftlang#3546) One of several different code paths in BuildPlan.swift are taken depending on whether the integrated Swift driver is enabled, whether explicit modules are enabled, etc. In the non-integrated-driver case, the code path for adding a `-parse-as-library` when necessary wasn't taken. This moves that code to a more central place, and extends a unit test to test both single and multiple file Swift targets, which seems to trigger the difference in code paths. rdar://78080245 (cherry picked from commit e84fd1c)
abertelrud
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5.5
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@swift-ci please test |
tomerd
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Jun 29, 2021
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This is the 5.5 cherry-pick of #3546. This fix has been in the main branch for 12 days.
One of several different code paths in BuildPlan.swift are taken depending on whether the integrated Swift driver is enabled, whether explicit modules are enabled, whether there is a single source file in the module, etc.
In the non-integrated-driver case, the code path for adding a
-parse-as-librarywhen necessary wasn't taken. This moves that code to a more central place, and extends a unit test to test both single and multiple file Swift targets, which seems to trigger the difference in code paths.Separately, there should be a JIRA to eliminate the code duplication in BuildPlan.swift, because it leads to this kind of bug.
rdar://78080245