[all-commits] [llvm/llvm-project] 55ea36: [Clang][Sema] Make UnresolvedLookupExprs in class ...

[Krystian Stasiowski via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 55ea36002bd364518c20b3ce282640c920697bf7
      https://github.com/llvm/llvm-project/commit/55ea36002bd364518c20b3ce282640c920697bf7
  Author: Krystian Stasiowski <sdkrystian at gmail.com>
  Date:   2024-08-06 (Tue, 06 Aug 2024)

  Changed paths:
    M clang/include/clang/AST/ExprCXX.h
    M clang/lib/AST/ASTImporter.cpp
    M clang/lib/AST/ExprCXX.cpp
    M clang/lib/Sema/SemaCoroutine.cpp
    M clang/lib/Sema/SemaDecl.cpp
    M clang/lib/Sema/SemaDeclCXX.cpp
    M clang/lib/Sema/SemaExpr.cpp
    M clang/lib/Sema/SemaExprMember.cpp
    M clang/lib/Sema/SemaOpenMP.cpp
    M clang/lib/Sema/SemaOverload.cpp
    M clang/lib/Sema/SemaTemplate.cpp
    M clang/lib/Sema/TreeTransform.h
    M clang/test/SemaCXX/decltype.cpp

  Log Message:
  -----------
  [Clang][Sema] Make UnresolvedLookupExprs in class scope explicit specializations instantiation dependent (#100392)

A class member named by an expression in a member function that may instantiate to a static _or_ non-static member is represented by a `UnresolvedLookupExpr` in order to defer the implicit transformation to a class member access expression until instantiation. Since `ASTContext::getDecltypeType` only creates a `DecltypeType` that has a `DependentDecltypeType` as its canonical type when the operand is instantiation dependent, and since we do not transform types unless they are instantiation dependent, we need to mark the `UnresolvedLookupExpr` as instantiation dependent in order to correctly build a `DecltypeType` using the expression as its operand with a `DependentDecltypeType` canonical type. Fixes #99873.



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