[5.9] Bundle macro plugin changes #64793
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When executable plugins crashed or somehow decided to exit, the compiler should relaunch the plugin executable before sending another message. (cherry picked from commit a49ab25)
* Argument to '-load-plugin-library' now must have a filename that's
'{libprefix}{modulename}.{sharedlibraryextension}'
* Load '-load-plugin-library' plugins are now lazily loaded in
'CompilerPluginLoadRequest'
* Remove ASTContext.LoadedSymbols cache because they are cached by
'ExternalMacroDefinitionRequest' anyway
* `-load-plugin-executable` format validation is now in
'ParseSearchPathArgs'
(cherry picked from commit d8c8574)
Set 'SWIFT_DUMP_PLUGIN_MESSAGING' env variable to enable it. (cherry picked from commit bd9af09)
And stop using '-dump-macro-expansions' (cherry picked from commit d5b8c84)
Make a single 'PluginRegistry' and share it between SwiftASTManager, IDEInspectionInstance, and CompileInstance. And inject the plugin registry to ASTContext right after 'CompilerInstance.setup()' That way, all sema-capable ASTContext in SourceKit share a single PluginRegistry. (cherry picked from commit a4d1fc6)
PluginRegistry is now shared between multiple ASTContext. ASTContext should track its loaded plugin library paths separately. (cherry picked from commit 59f744c)
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@swift-ci Please test |
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@swift-ci Please test macOS |
DougGregor
approved these changes
Mar 31, 2023
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Cherry-pick #64407 #64555 #64610 #64655 into
release/5.9Explanation: A bundle of macro plugin related changes (1) Recovery after external plugin crash, (2) Load
-load-plugin-librarylazily (3) Add environment variable to dump external plugin messagagings (4) Use a single PluginRegistry in multiple ASTContexts. All changes are important to improve the compiler stability regarding macro executable plugins.Scope: Macro resolution and expansion
Risk: Mid. Macro executable plugin system is a new feature
Testing: Added regression test cases
Reviewer: Ben Barham (@bnbarham), Alex Hoppen (@ahoppen), Doug Gregor (@DougGregor)