NOM — Number of Methods - mehen

NOM (Number of Methods) counts how many functions and closures live inside a unit (file, trait, class, or module).

What mehen emits

Key	Type	Description
`nom`	int	Total methods (named functions + closures).
`nom.functions`	int	Number of named functions.
`nom.closures`	int	Number of closures/lambdas.
`nom.functions_min` / `_max` / `_average`	—	Aggregates across child spaces.
`nom.closures_min` / `_max` / `_average`	—	Aggregates across child spaces.
`nom.average_functions` / `nom.average_closures`	float	Means per child space.
`nom.total_functions` / `nom.total_closures`	int	Aliases of `nom.functions` and `nom.closures`.

How to read it

`nom`	Interpretation
1–10	Small file/class; usually fine.
11–25	Medium; expected in most app-layer code.
26+	Likely a god-class candidate; pair with WMC to confirm.

The split between nom.functions and nom.closures is informative. A file with 5 named functions and 50 closures is usually a callback-heavy piece (e.g., an event-driven module).

References

Chidamber, S. R. & Kemerer, C. F. (1994). A Metrics Suite for Object Oriented Design. IEEE TSE. DOI. (NOM is one of the original CK metrics.)
Sonar: Metrics definitions — functions count.

See also

WMC — weighted methods per class (uses NOM as a divisor in some implementations).
NPM — public methods only.
NPA — public attributes.