================
@@ -740,6 +740,24 @@ bool hasDeclaredDeductionGuides(DeclarationName Name,
DeclContext *DC) {
return false;
}
+// Returns all source deduction guides associated with the declared
+// deduction guides that have the specified deduction guide name.
+llvm::DenseSet<const NamedDecl *> getSourceDeductionGuides(DeclarationName
Name,
+ DeclContext *DC) {
+ assert(Name.getNameKind() ==
+ DeclarationName::NameKind::CXXDeductionGuideName &&
+ "name must be a deduction guide name");
+ llvm::DenseSet<const NamedDecl *> Result;
+ for (auto *D : DC->lookup(Name)) {
+ if (const auto *FTD = dyn_cast<FunctionTemplateDecl>(D))
+ D = FTD->getTemplatedDecl();
+
+ if (const auto *GD = dyn_cast<CXXDeductionGuideDecl>(D))
+ Result.insert(GD->getSourceDeductionGuide());
----------------
hokein wrote:
Added an assertion -- this cannot be nullptr in theory. The function is only
called for the alias templates, if a deduction guide exists for a type alias,
then it must be generated from a source deduction guide by definition.
https://github.com/llvm/llvm-project/pull/125478
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