[all-commits] [llvm/llvm-project] f94c48: [clang] Track source deduction guide for alias tem...

[antangelo via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f94c481543bdd3b11a668ad78d46593cf974788f
      https://github.com/llvm/llvm-project/commit/f94c481543bdd3b11a668ad78d46593cf974788f
  Author: antangelo <contact at antangelo.com>
  Date:   2025-01-27 (Mon, 27 Jan 2025)

  Changed paths:
    M clang/include/clang/AST/DeclCXX.h
    M clang/lib/AST/ASTImporter.cpp
    M clang/lib/AST/DeclCXX.cpp
    M clang/lib/Sema/SemaTemplateDeductionGuide.cpp
    M clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
    M clang/lib/Serialization/ASTReaderDecl.cpp
    M clang/lib/Serialization/ASTWriterDecl.cpp
    M clang/unittests/AST/ASTImporterTest.cpp

  Log Message:
  -----------
  [clang] Track source deduction guide for alias template deduction guides (#123875)

For deduction guides generated from alias template CTAD, store the
deduction guide they were originated from. The source kind is also
maintained for future expansion in CTAD from inherited constructors.

This tracking is required to determine whether an alias template already
has a deduction guide corresponding to some deduction guide on the
original template, in order to support deduction guides for the alias
from deduction guides declared after the initial usage.



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