Don't access param unless we know it's there

[pietern]

No description provided.

[pietern]

I didn't test this. Just looks like we shouldn't be accessing anything before the error and nil checks.

[nfx]

can you run make gen to make sure it doesn't break stuff

[codecov-commenter]

Codecov Report

Patch and project coverage have no change.

Comparison is base (d682ad8) 18.24% compared to head (4ba3b0e) 18.25%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main     #582    +/-   ##
========================================
  Coverage   18.24%   18.25%            
========================================
  Files          85       85            
  Lines        9865     9986   +121     
========================================
+ Hits         1800     1823    +23     
- Misses       7910     8004    +94     
- Partials      155      159     +4     

Files Changed	Coverage Δ
openapi/code/package.go	58.00% <0.00%> (ø)

... and 16 files with indirect coverage changes

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[pietern]

@nfx Yep, it works.

[mgyucht]

Better error message that hopefully would have helped @tywin1104 out

[mgyucht]

One small suggestion, otherwise LGTM!