Implementation of Embarcadero array type traits

Patch authored by John Wiegley.

These are array type traits used for parsing code that employs certain
features of the Embarcadero C++ compiler: __array_rank(T) and
__array_extent(T, Dim).

llvm-svn: 130351

1 files changed, 13 insertions, 0 deletions

diff --git a/clang/lib/AST/StmtPrinter.cpp b/clang/lib/AST/StmtPrinter.cpp
index b96591b6614..62f06dba165 100644
--- a/clang/lib/AST/StmtPrinter.cpp
+++ b/clang/lib/AST/StmtPrinter.cpp
@@ -1308,6 +1308,14 @@ static const char *getTypeTraitName(BinaryTypeTrait BTT) {
   return "";
 }
 
+static const char *getTypeTraitName(ArrayTypeTrait ATT) {
+  switch (ATT) {
+  case ATT_ArrayRank:        return "__array_rank";
+  case ATT_ArrayExtent:      return "__array_extent";
+  }
+  return "";
+}
+
 static const char *getExpressionTraitName(ExpressionTrait ET) {
   switch (ET) {
   default: llvm_unreachable("Unknown expression trait");
@@ -1328,6 +1336,11 @@ void StmtPrinter::VisitBinaryTypeTraitExpr(BinaryTypeTraitExpr *E) {
      << E->getRhsType().getAsString(Policy) << ")";
 }
 
+void StmtPrinter::VisitArrayTypeTraitExpr(ArrayTypeTraitExpr *E) {
+  OS << getTypeTraitName(E->getTrait()) << "("
+     << E->getQueriedType().getAsString(Policy) << ")";
+}
+
 void StmtPrinter::VisitExpressionTraitExpr(ExpressionTraitExpr *E) {
     OS << getExpressionTraitName(E->getTrait()) << "(";
     PrintExpr(E->getQueriedExpression());