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
diff --git a/clang/lib/AST/StmtPrinter.cpp b/clang/lib/AST/StmtPrinter.cpp
index 2c0b74a..65e9f82 100644
--- a/clang/lib/AST/StmtPrinter.cpp
+++ b/clang/lib/AST/StmtPrinter.cpp
@@ -1705,6 +1705,18 @@
OS << "}";
}
+void StmtPrinter::VisitArrayInitLoopExpr(ArrayInitLoopExpr *Node) {
+ // There's no way to express this expression in any of our supported
+ // languages, so just emit something terse and (hopefully) clear.
+ OS << "{";
+ PrintExpr(Node->getSubExpr());
+ OS << "}";
+}
+
+void StmtPrinter::VisitArrayInitIndexExpr(ArrayInitIndexExpr *Node) {
+ OS << "*";
+}
+
void StmtPrinter::VisitParenListExpr(ParenListExpr* Node) {
OS << "(";
for (unsigned i = 0, e = Node->getNumExprs(); i != e; ++i) {