perf(es/minifier): check whether a function is pure with O(1) cost #6840
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Can we have those list also in swc minifier? (itself) |
Absolute yes. I would do it in another PR. We might need to provide an option(enable by default) to disable it. Because users might do some hacky things to the environment. |
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We have |
Get it. |
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@kdy1 we might need something like |
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I think we can use a hash set of |
Yes. Dealing |
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The wasm test due to net work. |
| Expr::Member(i) => { | ||
| Self(&i.obj).hash(state); | ||
| if let MemberProp::Ident(prop) = &i.prop { | ||
| prop.sym.hash(state); |
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I think there's a bug here that console.log will hash the same as the identifier consolelog. We'd need to hash "." or similar sigil.
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Does it matter? Eq will be used if the hash value matches
| Expr::Member(i) => { | ||
| Self(&i.obj).hash(state); | ||
| if let MemberProp::Ident(prop) = &i.prop { | ||
| prop.sym.hash(state); |
Description:
We might need to pass a giant pure function list to the SWC minifier as esbuild did here.
The current implementation could slow the minifier.
BREAKING CHANGE:
Related issue (if exists):