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[CodeCompletion] Give up fast-completion if dependent files are modified

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Check if dependencies are modified since the last checking.
Dependencies:

 - Other source files in the current module
 - Dependent files collected by the dependency tracker

When:

 - If the last dependency check was over N (defaults to 5) seconds ago

Invalidate if:

 - The dependency file is missing
 - The modification time of the dependecy is greater than the last check
 - If the modification time is zero, compare the content using the file
   system from the previous completion and the current completion

rdar://problem/62336432
This commit is contained in:
Rintaro Ishizaki
2020-04-28 18:34:44 -07:00
parent d9b1d8f694
commit 05a87e86c4
29 changed files with 527 additions and 18 deletions
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15
tools/SourceKit/lib/SwiftLang/SwiftLangSupport.cpp
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@@ -257,6 +257,13 @@ class InMemoryFileSystemProvider: public SourceKit::FileSystemProvider {
};
}
static void
configureCompletionInstance(std::shared_ptr<CompletionInstance> CompletionInst,
std::shared_ptr<GlobalConfig> GlobalConfig) {
CompletionInst->setDependencyCheckIntervalSecond(
GlobalConfig->getCompletionCheckDependencyInterval());
}
SwiftLangSupport::SwiftLangSupport(SourceKit::Context &SKCtx)
: NotificationCtr(SKCtx.getNotificationCenter()),
CCCache(new SwiftCompletionCache) {
@@ -270,7 +277,8 @@ SwiftLangSupport::SwiftLangSupport(SourceKit::Context &SKCtx)
SKCtx.getGlobalConfiguration(),
Stats, RuntimeResourcePath);
CompletionInst = std::make_unique<CompletionInstance>();
CompletionInst = std::make_shared<CompletionInstance>();
configureCompletionInstance(CompletionInst, SKCtx.getGlobalConfiguration());
// By default, just use the in-memory cache.
CCCache->inMemory = std::make_unique<ide::CodeCompletionCache>();
@@ -282,6 +290,11 @@ SwiftLangSupport::SwiftLangSupport(SourceKit::Context &SKCtx)
SwiftLangSupport::~SwiftLangSupport() {
}
void SwiftLangSupport::globalConfigurationUpdated(
std::shared_ptr<GlobalConfig> Config) {
configureCompletionInstance(CompletionInst, Config);
}
UIdent SwiftLangSupport::getUIDForDecl(const Decl *D, bool IsRef) {
return UIdentVisitor(IsRef).visit(const_cast<Decl*>(D));
}