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Improve the FileSystemObjectSink interface

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More invariants are enforced in the type, and less state needs to be
stored in the main sink itself. The method here is roughly that known as
"session types".

Co-authored-by: Robert Hensing <roberth@users.noreply.github.com>
This commit is contained in:
John Ericson 2023-12-20 14:47:05 -05:00
parent 966d6fcd01
commit 6365bbfa81
9 changed files with 357 additions and 219 deletions
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12
src/libutil/memory-source-accessor.hh
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@ -83,17 +83,11 @@ struct MemorySink : FileSystemObjectSink
void createDirectory(const Path & path) override;
void createRegularFile(const Path & path) override;
void receiveContents(std::string_view data) override;
void isExecutable() override;
void closeRegularFile() override;
void createRegularFile(
const Path & path,
std::function<void(CreateRegularFileSink &)>) override;
void createSymlink(const Path & path, const std::string & target) override;
void preallocateContents(uint64_t size) override;
private:
MemorySourceAccessor::File::Regular * r;
};
}