allow nameCache to be a concurrenthashmap

[masx200]

Bug report or Feature request?

feature request
Version (complete output of terser -V or specific git commit)
5.15.0
Complete CLI command or minify() options used

minify() api
terser input

terser output or error

Expected result

https://github.com/mmomtchev/SharedMap

https://www.npmjs.com/package/terser-webpack-plugin

https://www.npmjs.com/package/rollup-plugin-terser

Today's popular bundler uses terser, and you can use worker to compress many output files in parallel, but when using mangle.properties, you need to read and write simultaneously.

allow nameCache to be a concurrenthashmap

[masx200]

webpack-contrib/terser-webpack-plugin#256

TrySound/rollup-plugin-terser#117

[masx200]

https://terser.org/docs/api-reference

[masx200]

evanw/esbuild#2493 (comment)

https://github.com/orcaman/concurrent-map

The current concurrenthashmap in JavaScript may not be mature, but there is already a mature concurrenthashmap in golang, which is a concurrency security version.