Fix some weird code in core/coreunix/add.go #5354
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| @@ -201,7 +201,8 @@ func (adder *Adder) Finalize() (ipld.Node, error) { | |||
| return nil, err | |||
| } | |||
| var root mfs.FSNode | |||
| root = mr.GetDirectory() | |||
| rootdir := mr.GetDirectory() | |||
| root = rootdir | |||
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Let's leave only one of these definitions, and we can drop the mfs.FSNode definition (it will only be an mfs.Directory), something like:
root := mr.GetDirectory()or rootDir if you want to emphasize that we're dealing with a directory here.
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@schomatis the only way to drop rootdir is to perform type assertions on an the FSNode root. I think unchecked type assertions are places for potential future bugs. Otherwise I have to check the assertions, which is way worse than having a variable with the right type from the beginning.
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root cannot stay as *mfs.Directory type because it gets re-assigned an FSNode which may not be a directory.
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You need to check that the child of the root is a directory, otherwise more potentially harder-to-find bugs could follow if you allow the root to be an mfs.File.
Otherwise I have to check the assertions, which is way worse than having a variable with the right type from the beginning.
I'm failing to see the problem, you could have both, making root here explicitly as a directory and check that the child of this directory is also a directory in the posterior assignment.
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The child of the root does not need to be a directory. It's ok if it's an FSNode. The code is fine. I think this discussion is just about personal preferences.
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@schomatis actually the weirdness was there before your changes |
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| dir := mr.GetDirectory() | ||
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| root, err = dir.Child(name) |
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We should assert for a directory type here then.
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No, it does not need to be a directory
| @@ -201,7 +201,8 @@ func (adder *Adder) Finalize() (ipld.Node, error) { | |||
| return nil, err | |||
| } | |||
| var root mfs.FSNode | |||
| root = mr.GetDirectory() | |||
| rootdir := mr.GetDirectory() | |||
| root = rootdir | |||
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You need to check that the child of the root is a directory, otherwise more potentially harder-to-find bugs could follow if you allow the root to be an mfs.File.
Otherwise I have to check the assertions, which is way worse than having a variable with the right type from the beginning.
I'm failing to see the problem, you could have both, making root here explicitly as a directory and check that the child of this directory is also a directory in the posterior assignment.
Code was just weird. I think it looks better now. License: MIT Signed-off-by: Hector Sanjuan <[email protected]>
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@Stebalien this should be RFM |
Code was just weird. I think it looks better now.
License: MIT
Signed-off-by: Hector Sanjuan [email protected]