Some minification optimisations break function hoisting

[PaulBlanche]

On my projet, one of the dependencies is url-search-params-polyfill.

When i try to minify my projet, some minify optimisation breaks this dependency : REPL link

I belive swc tries to "flip" this condition : https://github.com/jerrybendy/url-search-params-polyfill/blob/c03102a7971c190284e2503805c4939e830c4ebc/index.js#L32-L34, without hoisting the function declaration URLSearchParamsPolyfill. This function stays in the scope of the "flipped" if block :

...if(!j||!k||!l||!m){function p(a){....

Conditional function declaration hoisting dependends on the agent (chrome and firefox hoist the name, but the function is undefined, ie hoists nothing, safari hoists the whole function MDN)

In the same situation, terser seems to exclude function declaration from the flipped condition (the function is declared after the end of the flipped condition).

[swc-bot]

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