[kisnner26]

fixes #163.

array dimensions currently suppress expression evaluation errors, so a constant containing text becomes a dynamic array size and fails only when reading data. propagate integer conversion failures as parser errors while preserving unresolved field expressions.

adds 12 regression cases covering invalid string/bytes constants, integer constants (including zero), and field-dependent lengths in compiled and interpreted mode. the six invalid-constant cases fail before the change.

validation: 121 parser/expression tests pass; ruff 0.13.1 lint and formatting, python 3.10 compatibility check, and git diff --check pass.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (46b850f) to head (e9b89f6).

Files with missing lines	Patch %	Lines
dissect/cstruct/parser.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #171   +/-   ##
=====================================
  Coverage   0.00%   0.00%           
=====================================
  Files         22      22           
  Lines       2854    2855    +1     
=====================================
- Misses      2854    2855    +1     

Flag	Coverage Δ
unittests	0.00% <0.00%> (ø)

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[codspeed]

Merging this PR will not alter performance

✅ 14 untouched benchmarks

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_{Comparing kisnner26:fix/noninteger-array-dimensions (e9b89f6) with main (46b850f)}

[Miauwkeru]

I'll take a look once the CLA on fox-it/dissect.util#142 is accepted

[Schamper]

Surpassed by #184.