I am trying to make using TensorCast: ⊗ work. For the above I get an LoadError: "invalid \"using\" statement: expected identifier". I tried various combinations of : and ()s, what’s the right way? Eg import Base: + just works.

Is ⊗ defined in TensorCast? I try importing some other function that I have seen defined in the package and I do not get any problem. However, it does not seem to find ⊗ . julia> import TensorCast: @cast julia> import TensorCast: ⊗ WARNING: could not import TensorCast.⊗ into Main

I get julia> using TensorCast: ⊗ ERROR: UndefVarError: ⊗ not defined (jl_oVB8Xl) pkg> st Status `/tmp/jl_oVB8Xl/Project.toml` [02d47bb6] TensorCast v0.4.6 julia> versioninfo() Julia Version 1.8.2 Commit 36034abf260 (2022-09-29 15:21 UTC) Platform Info: OS: Linux (x86_64-linux-gnu) CPU: 8 × …

I figured it out: ⊗ is just a placeholder that is parsed by the macro, so it does not need to be imported. The minimal import is using TensorCast: @cast, TensorCast since @cast expands to calls in TensorCast so it needs the module name available (I am not sure if it is possible to implement macro…

[image] Tamas_Papp: ⊗ is just a placeholder that is parsed by the macro That’s exactly right. Like the indices the macro acts on, there is never an object of this name defined. [image] fredrikekre: the package can (should) interpolate it’s own functions This is right too.

⊗ in using

General Usage

fredrikekre November 10, 2022, 4:22pm 5

That sounds like a bug then, the package can (should) interpolate it’s own functions and not rely on whatever names the user have in their namespace.

2 Likes

Topic		Replies	Views
`import <module>` makes all objects available without prefix General Usage question	3	255	February 29, 2024
"using" as a function? General Usage	12	743	October 16, 2020
Using TensorCast with JuliaPy General Usage broadcast , python , arrays , tensors	0	313	August 10, 2022
Using SomePackage: symbol doesn't import SomePackage in v0.7? Internals & Design question	6	664	June 27, 2018
TensorCast & CUDA General Usage question , cuda	2	590	June 16, 2020

⊗ in using

Related topics