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[ModuleInterface] Update wording of the "failed to build module" error

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The error shown when the compiler fails to build a module from its
textual interface has been creating some confusion. This is a proposal
to make it more useful to the programmer not working in the SDK, insist
on looking at the previous errors first, put less emphasis on possible
compiler bugs, and always show alternatives to the incompatible
compilers issue as this is the most common case now.
This commit is contained in:
Alexis Laferrière
2021-01-25 12:18:39 -08:00
parent f668c5953c
commit b79c7b627b
6 changed files with 15 additions and 16 deletions
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8
test/ModuleInterface/unbuildable.swift
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@@ -26,11 +26,11 @@
#if CURRENT
import UnbuildableCurrent
// CURRENT: unbuildable.swift:[[@LINE-1]]:8: error: failed to build module 'UnbuildableCurrent' from its module interface; it may have been damaged or it may have triggered a bug in the Swift compiler when it was produced
// CURRENT: unbuildable.swift:[[@LINE-1]]:8: error: failed to build module 'UnbuildableCurrent' for importation due to the errors above; the textual interface may be broken by project issues or a compiler bug
#else
import UnbuildableFuture
// FUTURE: unbuildable.swift:[[@LINE-1]]:8: error: failed to build module 'UnbuildableFuture' from its module interface; the compiler that produced it, 'NeoTokyoSwift 2000.42', may have used features that aren't supported by this compiler, '{{.*Swift version.*}}'
// FUTURE: unbuildable.swift:[[@LINE-1]]:8: error: failed to build module 'UnbuildableFuture' for importation due to the errors above; the textual interface may be broken by project issues, differences between compilers (the producer 'NeoTokyoSwift 2000.42' and this compiler '{{.*Swift version.*}}') or a compiler bug
#endif
// CURRENT-VERIFY: UnbuildableCurrent.swiftinterface:1:1: error: failed to verify module interface of 'UnbuildableCurrent'; it may have been damaged or it may have triggered a bug in the Swift compiler when it was produced
// FUTURE-VERIFY: UnbuildableFuture.swiftinterface:1:1: error: failed to verify module interface of 'UnbuildableFuture'; the compiler that produced it, 'NeoTokyoSwift 2000.42', may have used features that aren't supported by this compiler, '{{.*Swift version.*}}'
// CURRENT-VERIFY: UnbuildableCurrent.swiftinterface:1:1: error: failed to verify module interface of 'UnbuildableCurrent' due to the errors above; the textual interface may be broken by project issues or a compiler bug
// FUTURE-VERIFY: UnbuildableFuture.swiftinterface:1:1: error: failed to verify module interface of 'UnbuildableFuture' due to the errors above; the textual interface may be broken by project issues, differences between compilers (the producer 'NeoTokyoSwift 2000.42' and this compiler '{{.*Swift version.*}}') or a compiler bug