Author: Erich Keane
Date: 2022-07-22T12:52:26-07:00
New Revision: 70c62f4cadbec132c4ab5f939648d10ca6338b15

URL: 
https://github.com/llvm/llvm-project/commit/70c62f4cadbec132c4ab5f939648d10ca6338b15
DIFF: 
https://github.com/llvm/llvm-project/commit/70c62f4cadbec132c4ab5f939648d10ca6338b15.diff

LOG: [NFC] give getParentFunctionOrMethod a 'Lexical' parameter

Split up from the deferred concepts implementation, this function is
useful for determining the containing function of a different function.
However, in some cases it is valuable to instead get the lexical parent.
This adds a parameter to the existing function to allow a 'Lexical'
parameter to instead select the lexical parent.

Added: 
    

Modified: 
    clang/include/clang/AST/DeclBase.h
    clang/lib/AST/DeclBase.cpp

Removed: 
    


################################################################################
diff  --git a/clang/include/clang/AST/DeclBase.h 
b/clang/include/clang/AST/DeclBase.h
index 52fe8dd6b1e5..d1193161fd75 100644
--- a/clang/include/clang/AST/DeclBase.h
+++ b/clang/include/clang/AST/DeclBase.h
@@ -920,10 +920,12 @@ class alignas(8) Decl {
 
   /// If this decl is defined inside a function/method/block it returns
   /// the corresponding DeclContext, otherwise it returns null.
-  const DeclContext *getParentFunctionOrMethod() const;
-  DeclContext *getParentFunctionOrMethod() {
-    return const_cast<DeclContext*>(
-                    const_cast<const 
Decl*>(this)->getParentFunctionOrMethod());
+  const DeclContext *
+  getParentFunctionOrMethod(bool LexicalParent = false) const;
+  DeclContext *getParentFunctionOrMethod(bool LexicalParent = false) {
+    return const_cast<DeclContext *>(
+        const_cast<const Decl *>(this)->getParentFunctionOrMethod(
+            LexicalParent));
   }
 
   /// Retrieves the "canonical" declaration of the given declaration.

diff  --git a/clang/lib/AST/DeclBase.cpp b/clang/lib/AST/DeclBase.cpp
index 13dd6da3f24f..d12330de1500 100644
--- a/clang/lib/AST/DeclBase.cpp
+++ b/clang/lib/AST/DeclBase.cpp
@@ -283,8 +283,9 @@ unsigned Decl::getTemplateDepth() const {
   return cast<Decl>(DC)->getTemplateDepth();
 }
 
-const DeclContext *Decl::getParentFunctionOrMethod() const {
-  for (const DeclContext *DC = getDeclContext();
+const DeclContext *Decl::getParentFunctionOrMethod(bool LexicalParent) const {
+  for (const DeclContext *DC = LexicalParent ? getLexicalDeclContext()
+                                             : getDeclContext();
        DC && !DC->isTranslationUnit() && !DC->isNamespace();
        DC = DC->getParent())
     if (DC->isFunctionOrMethod())


        
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