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[cxxmodules] Use the global module index only when no rootmap candidate is found #9592

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Jan 26, 2022
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[cxxmodules] Use the global module index only when no rootmap candidate is found #9592

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13 changes: 6 additions & 7 deletions core/metacling/src/TClingCallbacks.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -359,21 +359,20 @@ bool TClingCallbacks::LookupObject(const DeclContext* DC, DeclarationName Name)
if (fIsAutoParsingSuspended || fIsAutoLoadingRecursively)
return false;

if (findInGlobalModuleIndex(Name, /*loadFirstMatchOnly*/ false))
return true;

if (Name.getNameKind() != DeclarationName::Identifier)
return false;

// Get the 'lookup' decl context.
// We need to cast away the constness because we will lookup items of this
// namespace/DeclContext
NamespaceDecl* NSD = dyn_cast<NamespaceDecl>(const_cast<DeclContext*>(DC));
if (!NSD)
return false;

if ( !TCling__IsAutoLoadNamespaceCandidate(NSD) )
return false;
// When GMI is mixed with rootmaps, we might have a name for two different
// entities provided by the two systems. In that case check if the rootmaps
// registered the enclosing namespace as a rootmap name resolution namespace
// and only if that was not the case use the information in the GMI.
if (!NSD || !TCling__IsAutoLoadNamespaceCandidate(NSD))
return findInGlobalModuleIndex(Name, /*loadFirstMatchOnly*/ false);

const DeclContext* primaryDC = NSD->getPrimaryContext();
if (primaryDC != DC)
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