LCOM4go
LCOM4go is a tool to compute LCOM4, Lack of Cohesion of Methods metrics ver.4, for golang projects.
Usage
$ ./lcom4go ./...
...
$ ./lcom4go net/http
...
LCOM4 definition
https://objectscriptquality.com/docs/metrics/lack-cohesion-methods-lcom4
Examples
The lcom4 of s0 is 1 because both method1 and method2 use s0.m.
type s0 struct {
m int
}
func (a s0) method1() int {
return a.m
}
func (a s0) method2() int {
return -a.m
}
The lcom4 of s1 is 2 because method3 uses a.n which is not used by method1 and method2.
type s1 struct {
m int
n int
}
func (a s1) method1() int {
return a.m
}
func (a s1) method2() int {
return -a.m
}
func (a s1) method3() int {
return -a.n
}
Running the tests
go test ./...
License
This software is released under the MIT License, see the license file.
References
- https://www.aivosto.com/project/help/pm-oo-cohesion.html#LCOM4
- https://kenchon.github.io/cohesive-code
- https://objectscriptquality.com/docs/metrics/lack-cohesion-methods-lcom4
- https://github.com/FujiHaruka/eslint-plugin-lcom
- https://metacpan.org/release/JOENIO/Analizo-1.20.3/source/lib/Analizo/Metric/LackOfCohesionOfMethods.pm
- https://github.com/potfur/lcom
- http://www.isys.uni-klu.ac.at/PDF/1995-0043-MHBM.pdf
- https://github.com/cleuton/jqana