Value Change Callback

[mb706]

See tests for how exactly this could work. The idea is to have a $callbacks slot of functions that get called whenever $values changes; the functions get called in turn and return a possibly modified version of the values to be set. This would close #231.

[codecov]

Codecov Report

Merging #237 into master will increase coverage by 0.05%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #237      +/-   ##
==========================================
+ Coverage   94.55%   94.61%   +0.05%     
==========================================
  Files          20       20              
  Lines         496      501       +5     
==========================================
+ Hits          469      474       +5     
  Misses         27       27

Impacted Files	Coverage Δ
R/ParamSetCollection.R	95.77% <100%> (ø)	⬆️
R/ParamSet.R	97.24% <100%> (+0.09%)	⬆️

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[codecov]

Codecov Report

Merging #237 into master will increase coverage by 0.82%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #237      +/-   ##
==========================================
+ Coverage   94.55%   95.37%   +0.82%     
==========================================
  Files          20       20              
  Lines         496      584      +88     
==========================================
+ Hits          469      557      +88     
  Misses         27       27

Impacted Files	Coverage Δ
R/ParamSetCollection.R	95.77% <100%> (ø)	⬆️
R/ParamSet.R	98.24% <100%> (+1.1%)	⬆️

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[jakob-r]

Essentially a forced trafo?

[mb706]

It allows for side-effects from changin parameter values. My use-case is changing one ParamSet member of a ParamSetCollection according to a parameter value (see the "callbacks on ParamSetCollection" test at the end of test_ParamSet.R in the PR).

[berndbischl]

lets at least discuss this in toulouse, i am unsure wether this is a good thing