improve GrammerValue.dataType

[AxiosLeo]

No description provided.

[codecov-commenter]

Codecov Report

Merging #24 into master will decrease coverage by 0.11%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master      #24      +/-   ##
==========================================
- Coverage   94.32%   94.21%   -0.12%     
==========================================
  Files          15       15              
  Lines        2134     2143       +9     
==========================================
+ Hits         2013     2019       +6     
- Misses        121      124       +3     

Impacted Files	Coverage Δ
src/langs/common/items.js	99.18% <ø> (ø)
src/langs/php/combinator.js	88.24% <0.00%> (-0.26%)	⬇️
src/langs/php/config.js	100.00% <ø> (ø)
src/resolver/client.js	98.91% <80.00%> (-0.18%)	⬇️
src/langs/common/combinator.js	100.00% <100.00%> (ø)
src/resolver/base.js	93.38% <100.00%> (+0.09%)	⬆️

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