refactor[catesian]: Type hints and code redability improvements

[romanc]

Description

This PR is split off the work for the new GT4Py - DaCe bridge, which should allow to expose control flow statements (if and while) to DaCe to better use DaCe's analytics capabilities. This PR is concerned with adding type hints and generally improving code readability. Main parts are

• daceir_builder.py: early returns and renamed variable
• sdfg_builder.py: type hints and early returns
• tasklet_codegen.py: type hints and early returns

TaskletCodegen was given sdfg_ctx, which wasn't used. That parameter was thus removed.

Parent issue: GEOS-ESM/NDSL#53

Requirements

• All fixes and/or new features come with corresponding tests.
  Assumed to be covered by existing tests.
• Important design decisions have been documented in the approriate ADR inside the docs/development/ADRs/ folder.
  N/A

[romanc]

@twicki, @FlorianDeconinck: The great cleanup continues. Pulling out as much as I can from main...romanc:romanc/dace-bridge-no-sdfgs before switching tasks.

@egparedes would you mind kicking off CSCS CI for us?

[FlorianDeconinck]

LGTM

[havogt]

Are yo aware of the mypy excludes here

gt4py/pyproject.toml

Line 170 in 6873a0e

[[tool.mypy.overrides]]

? You could play with these settings to enable stricter mypy settings in the files that you fixed.

[twicki]

Looks good.

[romanc]

Are yo aware of the mypy excludes here

gt4py/pyproject.toml

Line 170 in 6873a0e

[[tool.mypy.overrides]]

? You could play with these settings to enable stricter mypy settings in the files that you fixed.

Thanks for the pointer @havogt, I wasn't aware. I'll see what we can do there in a follow-up PR if that is okay with you.

Meanwhile, I updated the branch with latest main. If someone from CSCS would kick off the CSCS-CI for me, I'd be grateful 🙏

[tehrengruber]

cscs-ci run default