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function signature for package function

Asked by Jim Hokanson on 21 Feb 2019
Latest activity Answered by Jim Hokanson on 5 Mar 2019
Well I just hit "cancel" instead of "submit" so here's a short version :/
I can't get functionSignatures.json to work for the function "fileWrite" inside a package "sl.io"
Validation (validateFunctionSignaturesJSON) can't find the function if it is just "fileWrite" and complains when it is "sl.io.fileWrite" => Unable to get metadata for method "fileWrite" of class "sl.io".
I am assuming this is a bug but am I missing something simple? Either version doesn't seem to work in the command window (ignoring validation)
Using 2018b

  2 Comments

That error message from validateFunctionSignaturesJSON is suspicious.
What does:
>> which sl.io.fileWrite
return?
It returns the correct path:
...mat_std_lib\+sl\+io\fileWrite.m % static method or package function
I'm guessing it is a bug ... I'm going to go ahead and file a report.

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Release

R2018b

1 Answer

Answer by Jim Hokanson on 5 Mar 2019
 Accepted Answer

So apparently there were two issues.
First, these json files must be placed in the same folder that gets added to the path. So rather than being in the "+io" folder it needs to be placed in the folder that contains the "+sl" folder. This means that there will be only 1 JSON file for a package and all of its subpackages.
Second, there is currently a bug that prevents the tip window from popping up when typing with these nested functions in the command window. As a workaround they suggested that I could use a live script instead.

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