Added a function to check whether a Decl is in
the list of Decls for a given DeclContext. This
is useful for LLDB's implementation of
FindExternalLexicalDecls.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@181093 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/DeclBase.h b/include/clang/AST/DeclBase.h
index 5d5d452..a4a52e2 100644
--- a/include/clang/AST/DeclBase.h
+++ b/include/clang/AST/DeclBase.h
@@ -1412,6 +1412,9 @@
/// @brief Removes a declaration from this context.
void removeDecl(Decl *D);
+
+ /// @brief Checks whether a declaration is in this context.
+ bool containsDecl(Decl *D) const;
/// lookup_iterator - An iterator that provides access to the results
/// of looking up a name within this context.
diff --git a/lib/AST/DeclBase.cpp b/lib/AST/DeclBase.cpp
index c1fbdb9..7b79006 100644
--- a/lib/AST/DeclBase.cpp
+++ b/lib/AST/DeclBase.cpp
@@ -1064,6 +1064,11 @@
return !FirstDecl;
}
+bool DeclContext::containsDecl(Decl *D) const {
+ return (D->getLexicalDeclContext() == this &&
+ (D->NextInContextAndBits.getPointer() || D == LastDecl));
+}
+
void DeclContext::removeDecl(Decl *D) {
assert(D->getLexicalDeclContext() == this &&
"decl being removed from non-lexical context");
