Try to plug some memory leaks...
1) Sema::ParseAST now constructs a TranslationUnit object to own the top-level Decls, which releases the top-level Decls upon exiting ParseAST.
2) Bug fix: TranslationUnit::~TranslationUnit handles the case where a Decl is added more than once as a top-level Decl.
3) Decl::Destroy is now a virtual method, obviating the need for a special dispatch based on DeclKind.
3) FunctionDecl::Destroy now releases its Body using its Destroy method.
4) Added Stmt::Destroy and Stmt::DestroyChildren, which recursively delete the child ASTs of a Stmt and call their dstors. We may need to special case dstor/Destroy methods for particular Stmt subclasses that own other dynamically allocated objects besides AST nodes.
5) REGRESSION: We temporarily are not deallocating attributes; a FIXME is provided.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51286 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/ParseAST.cpp b/lib/Sema/ParseAST.cpp
index 364b072..fcdc27b 100644
--- a/lib/Sema/ParseAST.cpp
+++ b/lib/Sema/ParseAST.cpp
@@ -14,6 +14,7 @@
#include "clang/Sema/ParseAST.h"
#include "clang/AST/ASTContext.h"
#include "clang/AST/ASTConsumer.h"
+#include "clang/AST/TranslationUnit.h"
#include "Sema.h"
#include "clang/Parse/Action.h"
#include "clang/Parse/Parser.h"
@@ -36,6 +37,8 @@
ASTContext Context(PP.getSourceManager(), PP.getTargetInfo(),
PP.getIdentifierTable(), PP.getSelectorTable());
+ TranslationUnit TU(Context, PP.getLangOptions());
+
Parser P(PP, *new Sema(PP, Context, *Consumer));
PP.EnterMainSourceFile();
@@ -45,12 +48,16 @@
Consumer->Initialize(Context);
Parser::DeclTy *ADecl;
+
while (!P.ParseTopLevelDecl(ADecl)) { // Not end of file.
// If we got a null return and something *was* parsed, ignore it. This
// is due to a top-level semicolon, an action override, or a parse error
// skipping something.
- if (ADecl)
- Consumer->HandleTopLevelDecl(static_cast<Decl*>(ADecl));
+ if (ADecl) {
+ Decl* D = static_cast<Decl*>(ADecl);
+ TU.AddTopLevelDecl(D); // TranslationUnit now owns the Decl.
+ Consumer->HandleTopLevelDecl(D);
+ }
};
if (PrintStats) {