ilya-biryukov added inline comments.
================
Comment at: lib/Tooling/Tooling.cpp:287
+ if (Files->getVirtualFileSystem() != VirtualFileSystem) {
+ Files = new FileManager(Invocation->getFileSystemOpts(),
VirtualFileSystem);
+ }
----------------
vladimir.plyashkun wrote:
> ilya-biryukov wrote:
> > `Files` is a raw pointer, so we're leaking memory here.
> >
> Agree.
> I can try to replace type of this field to `llvm::IntrusiveRefCntPtr<T>`
> instead of raw pointer.
> But if i understand correctly, this class is available during whole
> execution, so memory will be freed on exit.
> I saw some other usages, for example, `createFileManager` method in the
> `CompilerInstance` also just reassign value to raw pointer.
> https://clang.llvm.org/doxygen/classclang_1_1CompilerInstance.html#abeb2bbf46a8de987c227125a84935802
Using `IntrusiveRefCntPtr<FileManager>` locally should do the trick, the
clients can take ownership if they want and `FileManager` will be properly
freed if they don't do that.
`CompilerInstance::createFileManager` stores `IntrusiveRefCntPtr` as a field
before returning a raw pointer, so it seems to properly manage memory there.
Repository:
rC Clang
https://reviews.llvm.org/D41594
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