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Also make the titles and one line summaries a little more consistent (at least for diagnsotic groups and upcoming language features, haven't gone through the educational notes).
20 lines
632 B
Markdown
20 lines
632 B
Markdown
# Imported Clang declaration warnings (ClangDeclarationImport)
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Covers all warnings related to malformed APIs that are imported into Swift from C, C++, and Obj-C headers.
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## Overview
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As one example of a potential malformed API diagnostic, suppose a Clang module dependency contained the following declaration:
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```
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typedef int NotificationIdentifier
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__attribute__((swift_name("Notification.Identifier")))
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```
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The Swift compiler would emit the following warning if no type named `Notification` could be found:
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```
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warning: imported declaration 'NotificationIdentifier' could not be mapped to 'Notification.Identifier’
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```
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