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Shell: Correct FdRedirection inheriting from two RefCounted bases

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Also add missing calls to `adopt()`.
This commit is contained in:
AnotherTest 2020-08-04 14:23:23 +04:30 • committed by Andreas Kling
parent 12af65c1c9
commit 1d08cab9ab
5 changed files with 32 additions and 22 deletions
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29
Shell/AST.h
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@ -48,10 +48,11 @@ struct Position {
bool contains(size_t offset) const { return start_offset <= offset && offset <= end_offset; }
};
struct FdRedirection;
struct Rewiring : public RefCounted<Rewiring> {
int source_fd { -1 };
int dest_fd { -1 };
Rewiring* other_pipe_end { nullptr };
FdRedirection* other_pipe_end { nullptr };
enum class Close {
None,
Source,
@ -67,7 +68,7 @@ struct Rewiring : public RefCounted<Rewiring> {
{
}
Rewiring(int source, int dest, Rewiring* other_end, Close close)
Rewiring(int source, int dest, FdRedirection* other_end, Close close)
: source_fd(source)
, dest_fd(dest)
, other_pipe_end(other_end)
@ -121,20 +122,30 @@ private:
virtual bool is_path_redirection() const override { return true; }
};
struct FdRedirection : public Redirection
, public Rewiring {
virtual Result<RefPtr<Rewiring>, String> apply() const override { return static_cast<RefPtr<Rewiring>>(this); }
struct FdRedirection : public Redirection {
virtual Result<RefPtr<Rewiring>, String> apply() const override
{
return RefPtr<Rewiring>(adopt(*new Rewiring(source_fd, dest_fd, other_pipe_end, action)));
}
virtual ~FdRedirection();
FdRedirection(int source, int dest, Rewiring::Close close)
: Rewiring(source, dest, close)
: FdRedirection(source, dest, nullptr, close)
{
}
FdRedirection(int source, int dest, Rewiring* pipe_end, Rewiring::Close close)
: Rewiring(source, dest, pipe_end, close)
FdRedirection(int source, int dest, FdRedirection* pipe_end, Rewiring::Close close)
: source_fd(source)
, dest_fd(dest)
, other_pipe_end(pipe_end)
, action(close)
{
}
int source_fd { -1 };
int dest_fd { -1 };
FdRedirection* other_pipe_end { nullptr };
Rewiring::Close action { Rewiring::Close::None };
private:
virtual bool is_fd_redirection() const override { return true; }
};