From 06d6c9219b6b31db6556d8b39e027b41125881b6 Mon Sep 17 00:00:00 2001
From: zoecarver <z.zoelec2@gmail.com>
Date: Mon, 31 Oct 2022 15:01:28 -0700
Subject: [PATCH] [astgen] Fix two use-after-frees.

---
 lib/AST/CASTBridging.cpp | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/lib/AST/CASTBridging.cpp b/lib/AST/CASTBridging.cpp
index c9f4c14a1790c..0bd565f008521 100644
--- a/lib/AST/CASTBridging.cpp
+++ b/lib/AST/CASTBridging.cpp
@@ -120,17 +120,19 @@ void *SwiftIdentifierExpr_create(void *ctx, BridgedIdentifier base, void *loc) {
 void *SwiftStringLiteralExpr_create(void *ctx, const uint8_t *_Nullable string,
                                     long len, void *TokenLoc) {
   ASTContext &Context = *static_cast<ASTContext *>(ctx);
-  return new (Context) StringLiteralExpr(
-      StringRef{reinterpret_cast<const char *>(string), size_t(len)},
-      getSourceLocFromPointer(TokenLoc));
+  auto stringRef = Context.AllocateCopy(
+      StringRef{reinterpret_cast<const char *>(string), size_t(len)});
+  return new (Context)
+      StringLiteralExpr(stringRef, getSourceLocFromPointer(TokenLoc));
 }
 
 void *SwiftIntegerLiteralExpr_create(void *ctx, const uint8_t *_Nullable string,
                                      long len, void *TokenLoc) {
   ASTContext &Context = *static_cast<ASTContext *>(ctx);
-  return new (Context) IntegerLiteralExpr(
-      StringRef{reinterpret_cast<const char *>(string), size_t(len)},
-      getSourceLocFromPointer(TokenLoc));
+  auto stringRef = Context.AllocateCopy(
+      StringRef{reinterpret_cast<const char *>(string), size_t(len)});
+  return new (Context)
+      IntegerLiteralExpr(stringRef, getSourceLocFromPointer(TokenLoc));
 }
 
 void *SwiftBooleanLiteralExpr_create(void *ctx, bool value, void *TokenLoc) {