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indexer: disable warnings and skip processed function bodies

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This commit is contained in:
Fangrui Song 2019-08-21 18:59:41 -07:00
parent 646aca5b7f
commit d417597a11
1 changed files with 25 additions and 1 deletions
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26
src/indexer.cc
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@ -23,6 +23,7 @@ limitations under the License.
#include <clang/AST/AST.h> #include <clang/AST/AST.h>
#include <clang/Frontend/FrontendAction.h> #include <clang/Frontend/FrontendAction.h>
#include <clang/Frontend/MultiplexConsumer.h>
#include <clang/Index/IndexDataConsumer.h> #include <clang/Index/IndexDataConsumer.h>
#include <clang/Index/IndexingAction.h> #include <clang/Index/IndexingAction.h>
#include <clang/Index/USRGeneration.h> #include <clang/Index/USRGeneration.h>
@ -1159,10 +1160,28 @@ public:
IndexFrontendAction(IndexParam &param) : param(param) {} IndexFrontendAction(IndexParam &param) : param(param) {}
std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI, std::unique_ptr<ASTConsumer> CreateASTConsumer(CompilerInstance &CI,
StringRef InFile) override { StringRef InFile) override {
class SkipProcessed : public ASTConsumer {
IndexParam &param;
const ASTContext *ctx = nullptr;
public:
SkipProcessed(IndexParam &param) : param(param) {}
void Initialize(ASTContext &ctx) override { this->ctx = &ctx; }
bool shouldSkipFunctionBody(Decl *d) override {
const SourceManager &sm = ctx->getSourceManager();
FileID fid = sm.getFileID(sm.getExpansionLoc(d->getLocation()));
return !(g_config->index.multiVersion && param.useMultiVersion(fid)) &&
!param.consumeFile(fid);
}
};
Preprocessor &PP = CI.getPreprocessor(); Preprocessor &PP = CI.getPreprocessor();
PP.addPPCallbacks( PP.addPPCallbacks(
std::make_unique<IndexPPCallbacks>(PP.getSourceManager(), param)); std::make_unique<IndexPPCallbacks>(PP.getSourceManager(), param));
return std::make_unique<ASTConsumer>(); std::vector<std::unique_ptr<ASTConsumer>> Consumers;
Consumers.push_back(std::make_unique<SkipProcessed>(param));
Consumers.push_back(std::make_unique<ASTConsumer>());
return std::make_unique<MultiplexConsumer>(std::move(Consumers));
} }
}; };
} // namespace } // namespace
@ -1229,6 +1248,10 @@ Index(SemaManager *manager, WorkingFiles *wfiles, VFS *vfs,
if (!CI) if (!CI)
return {}; return {};
ok = false; ok = false;
// Disable computing warnings which will be discarded anyway.
CI->getDiagnosticOpts().IgnoreWarnings = true;
// Enable IndexFrontendAction::shouldSkipFunctionBody.
CI->getFrontendOpts().SkipFunctionBodies = true;
// -fparse-all-comments enables documentation in the indexer and in // -fparse-all-comments enables documentation in the indexer and in
// code completion. // code completion.
CI->getLangOpts()->CommentOpts.ParseAllComments = g_config->index.comments > 1; CI->getLangOpts()->CommentOpts.ParseAllComments = g_config->index.comments > 1;
@ -1245,6 +1268,7 @@ Index(SemaManager *manager, WorkingFiles *wfiles, VFS *vfs,
auto Clang = std::make_unique<CompilerInstance>(PCH); auto Clang = std::make_unique<CompilerInstance>(PCH);
Clang->setInvocation(std::move(CI)); Clang->setInvocation(std::move(CI));
Clang->createDiagnostics(&DC, false); Clang->createDiagnostics(&DC, false);
Clang->getDiagnostics().setIgnoreAllWarnings(true);
Clang->setTarget(TargetInfo::CreateTargetInfo( Clang->setTarget(TargetInfo::CreateTargetInfo(
Clang->getDiagnostics(), Clang->getInvocation().TargetOpts)); Clang->getDiagnostics(), Clang->getInvocation().TargetOpts));
if (!Clang->hasTarget()) if (!Clang->hasTarget())