Add two new AST nodes to represent initialization of an array in terms of

initialization of each array element:

 * ArrayInitLoopExpr is a prvalue of array type with two subexpressions:
   a common expression (an OpaqueValueExpr) that represents the up-front
   computation of the source of the initialization, and a subexpression
   representing a per-element initializer
 * ArrayInitIndexExpr is a prvalue of type size_t representing the current
   position in the loop

This will be used to replace the creation of explicit index variables in lambda
capture of arrays and copy/move construction of classes with array elements,
and also C++17 structured bindings of arrays by value (which inexplicably allow
copying an array by value, unlike all of C++'s other array declarations).

No uses of these nodes are introduced by this change, however.

llvm-svn: 289413

1 files changed, 2 insertions, 0 deletions

diff --git a/clang/tools/libclang/CXCursor.cpp b/clang/tools/libclang/CXCursor.cpp
index e68d7939754..7f0a297fdad 100644
--- a/clang/tools/libclang/CXCursor.cpp
+++ b/clang/tools/libclang/CXCursor.cpp
@@ -243,6 +243,8 @@ CXCursor cxcursor::MakeCXCursor(const Stmt *S, const Decl *Parent,
   case Stmt::ChooseExprClass:
   case Stmt::DesignatedInitExprClass:
   case Stmt::DesignatedInitUpdateExprClass:
+  case Stmt::ArrayInitLoopExprClass:
+  case Stmt::ArrayInitIndexExprClass:
   case Stmt::ExprWithCleanupsClass:
   case Stmt::ExpressionTraitExprClass:
   case Stmt::ExtVectorElementExprClass: