Attempt to use Flow's new StringPrefix feature

[necolas]

Fix #71

[github-actions]

compressed-size: runtime library

Size change: 0.00 kB
Total size: 20.35 kB

View unchanged

Filename: gzip (minify)	kB size	kB change	% change
./packages/react-strict-dom/dist/dom/index.js	2.94 (8.79)	0.00 (0.00)	0.0% (0.0%)
./packages/react-strict-dom/dist/dom/runtime.js	0.95 (2.33)	0.00 (0.00)	0.0% (0.0%)
./packages/react-strict-dom/dist/native/index.js	16.45 (53.21)	0.00 (0.00)	0.0% (0.0%)

[github-actions]

workflow: benchmarks (native)

Comparison of benchmark test results, measured in operations per second (higher is faster.)

Suite	Base	Patch	Ratio
css.create
· small	1,147,308	1,152,530	1.00	+
· small with units	449,318	448,615	1.00	-
· small with variables	685,851	673,815	0.98	-
· several small	328,188	330,084	1.01	+
· large	214,801	216,107	1.01	+
· large with polyfills	154,010	152,267	0.99	-
· complex	105,327	104,393	0.99	-
· unsupported	231,619	233,296	1.01	+
css.createTheme
· simple theme	226,291	225,584	1.00	-
· polyfill theme	213,384	213,392	1.00	+
css.props
· small	235,566	237,887	1.01	+
· small with units	186,777	187,395	1.00	+
· small with variables	105,128	105,478	1.00	+
· small with variables of units	75,260	75,083	1.00	-
· large	102,550	102,049	1.00	-
· large with polyfills	25,978	26,162	1.01	+
· complex	18,084	18,224	1.01	+
· unsupported	75,234	75,443	1.00	+
· simple merge	160,836	160,580	1.00	-
· wide merge	13,748	13,875	1.01	+
· deep merge	13,561	13,650	1.01	+
internals
· extractStyleThemes	425,401	424,882	1.00	-
· flattenStyle	654,521	654,518	1.00	-

[nmn]

Did you check if the generated TS types work as expected?

If so, this LGTM.

[nmn]

There seems to be a Flow bug with the StringPrefix type still when being used in an object type as in the PR.

[necolas]

This is not ready to merge, I put it up for the flow team. We've been talking about the issues with the API and it's translation to TS. They're looking into it