Austaras
4f67794223
feat(es/minifier): Inline into the arguments of new using seq inliner ( #8127 )
2023-10-18 03:07:14 +00:00
Donny/강동윤
94bb42e294
fix(es/minifier): Don't inline functions if keep_fnames is enabled ( #8093 )
...
**Related issue:**
- https://github.com/vercel/next.js/issues/56550
2023-10-12 00:39:19 +00:00
Austaras
f8ca366cc1
fix(es/minifier): Abort seq inliner if var is not fn_local or reassigned ( #7804 )
...
**Description:**
It turns out that the original implementation of `infect`is incomplete
because it cannot cover function param, and the new implementation
introduced in #7772 is redundant because what
[terser](https://github.com/terser/terser/blob/master/lib/compress/tighten-body.js#L909C18-L909C28 )
do is basically checking `fn_local`
**Related issue:**
- Closes #7784
2023-08-17 05:15:59 +00:00
David Sherret
064bcf4854
fix(es/codegen): Remove extra spaces in AssignPatProp and KeyValuePatProp ( #7488 )
...
Co-authored-by: Donny/강동윤 <kdy1997.dev@gmail.com>
2023-06-07 05:08:35 +00:00
Austaras
0cd2b61b05
feat(es/minifier): Inline for loop variables ( #7445 )
2023-05-25 03:59:02 +00:00
Austaras
5dbbbea2ef
fix(es/minifier): Mark all function params as potential property mutation ( #7409 )
...
**Description:**
This issue is more severe than I originally thought. It raises not in
array indexing, but in function calls and property mutation. We should
treat all function arguments as potentially be property mutated,
otherwise following example
```js
class A {
a = 1
toString() {
return this.a
}
}
const a = new A()
function foo(x) {
x.a++
}
const b = a + 1
foo(a)
console.log(b)
```
would be error(It should log 2, but logs 3 after compress).
As the result, massive regressions is unavoidable, since some of these
optimizations may indeed cause error. Part of them can be mitigated with
following optimization -- allow inline of ident even if its original
value is mutated. Consider
```js
export function foo(x) {
const y = x
x.a = 1
y.b = 2
}
```
If x is a primitive value, all mutations to its properties are ignored;
if x is a object, then y refers to the same object no matter what
mutation is performed.
And there's still room for more, currently following code
```js
export function foo(x) {
const y = Math.floor(x);
g(y);
}
```
But I'd rather do it in a separate PR.
**Related issue:**
- Closes #7402 .
2023-05-18 01:19:17 +00:00
Austaras
06cbb9002d
feat(es/minifier): Optimize calls to Boolean/Number/String/Symbol ( #7006 )
2023-03-04 04:14:14 +00:00
HeYunfei
a1ccc8afdf
feat(es/minifier): Make name mangler understand block scoping ( #6670 )
...
**Related issue:**
- Closes https://github.com/swc-project/swc/issues/5090 .
- Closes https://github.com/swc-project/swc/issues/5766 .
2023-01-06 03:14:10 +00:00
Austaras
1cd7f617f9
feat(es/minifier): Inline a lazily initialized var if it's used once ( #6237 )
2022-10-26 06:02:22 +00:00
Donny/강동윤
9ce3df091f
feat(es/minifier): Distinguish calls in alias analyzer ( #6080 )
...
**Description:**
This PR improves the alias analyzer by distinguishing call and reference, thus reducing the number of identifiers.
---
Co-authored-by: Justin Ridgewell <justin@ridgewell.name>
2022-10-08 03:15:18 +00:00
IWANABETHATGUY
8003dc8563
feat(es/codegen): Remove the trailing comma of binding patterns ( #6078 )
2022-10-07 16:45:20 +09:00
Austaras
c9427f1ec4
fix(es/minifier): Improve infection analysis ( #6044 )
2022-10-06 18:12:09 +09:00
Donny/강동윤
d65fba134d
fix(es/minifier): Fix infection analysis of sequential inliner ( #6053 )
...
**Description:**
This PR fixes the callee issue by fixing the infection analyzer.
**Related issue:**
- Closes https://github.com/swc-project/swc/issues/6047
2022-10-06 02:46:22 +00:00
Austaras
c4850997a2
feat(es/minifier): Inline vars initialized before the declaration ( #6027 )
2022-10-03 08:58:38 +00:00
Austaras
61807abf6e
feat(es/minifier): Inline function calls in more cases ( #6010 )
2022-10-01 18:18:45 +09:00
Donny/강동윤
aeb7f300a8
feat(es/minifier): Invoke sequential inliner for inlined IIFEs ( #5991 )
...
**Description:**
Inlined IIFEs have the exact pattern sequential inliner wants, so it's good to invoke it.
2022-09-29 11:03:06 +00:00
Donny/강동윤
f8358fbe2b
fix(es/minifier): Remove wrong variable joiner pass ( #5992 )
...
**Description:**
We had two passes for joining variables. This PR removes one in the full optimizer, which is wrong.
**Related issue:**
- Closes https://github.com/swc-project/swc/issues/5989 .
2022-09-29 19:11:18 +09:00
Donny/강동윤
8c4873f81e
test(es/minifier): Remove mangle-only snapshots ( #5979 )
...
**Description:**
We don't have to store snapshots of all fixtures.
2022-09-28 21:35:52 +09:00
Donny/강동윤
97647861bf
fix(es/minifier): Track aliasing via assignments ( #5940 )
2022-09-23 14:22:41 +09:00
Donny/강동윤
93964a82ea
test(es/minifier): Remove analysis snapshot ( #5939 )
...
**Description:**
This PR removes analysis snapshots as it disturbs code review process
2022-09-23 13:14:42 +09:00
Donny/강동윤
7bcaaef4f7
feat(es/minifier): Mangle labels ( #5934 )
...
**Description:**
This PR adds code to mangle labels.
2022-09-22 23:24:05 +09:00
Donny/강동윤
e9c704182b
feat(es/minifier): Improve analysis of reassignments ( #5931 )
2022-09-22 10:22:18 +00:00
Donny/강동윤
e303f7e853
fix(es/minifier): Fix analysis of assignments ( #5924 )
...
**Related issue:**
- Closes https://github.com/swc-project/swc/issues/5910
2022-09-21 11:33:25 +00:00
Donny/강동윤
a9873e505d
perf(es/minifier): Optimize analyzer ( #5908 )
2022-09-20 08:21:39 +00:00
Austaras
83c7887600
fix(es/minifier): Remove more pure calls ( #5900 )
2022-09-19 12:21:15 +00:00
IWANABETHATGUY
7d6d04b421
fix(es/codegen): Drop the last comma in an array literal ( #5877 )
...
**Description:**
Drop the last comma in an array literal.
**Related issue:**
- Closes https://github.com/swc-project/swc/issues/5692 .
2022-09-16 15:48:28 +09:00
Alexander Akait
7f62fa6227
perf(html): Reduce memory usage ( #5867 )
2022-09-15 04:17:05 +00:00
Austaras
63fb0c4ad3
feat(es/minifier): Move assign with seq init into seq ( #5847 )
2022-09-14 12:57:18 +00:00
Alexander Akait
ccd618ce54
perf(html/minifier): Improve performance ( #5838 )
2022-09-13 14:01:41 +09:00
Austaras
8567a38c4a
feat(es/minifier): Extend inlining of identifiers to multi-usage ( #5832 )
2022-09-13 03:52:47 +00:00
Donny/강동윤
7391cc99b1
perf(css/minifier): Use JsWord instead of &str ( #5806 )
2022-09-10 07:20:51 +00:00
Austaras
ee26337a25
feat(es/minifier): Inline lazily initialized variables ( #5737 )
...
Safety:
For a function-local variable, an expression with side-effects would be a call, including an indirect one with a member expression.
- If the call is function-local, it will be analyzed by the analyzer and inliner will not work.
- If the call is not a function-local one, it cannot modify the local variable.
2022-09-08 08:07:43 +00:00
Donny/강동윤
24b60d2b64
feat(es/minifier): Change order of renaming to align with terser ( #5780 )
...
**Description:**
- Change the order of renaming to match one of `terser`.
2022-09-08 05:23:23 +00:00
Donny/강동윤
32a73fbf22
fix(es/minifier): Fix calculation of character frequency ( #5772 )
2022-09-07 04:46:21 +00:00
Austaras
90852f5aa6
fix(es/minifier): Fix analysis of assignments and classes ( #5770 )
2022-09-07 03:51:42 +00:00
Donny/강동윤
60ce462215
feat(es/minifier): Align name mangler with terser ( #5763 )
2022-09-06 21:37:58 +09:00
Austaras
5b2d024788
feat(es/minifier): Relax requirement for IIFE invokation ( #5721 )
2022-09-03 07:33:31 +00:00
Donny/강동윤
8827c38faf
feat(es/minifier): Make DCE single-pass ( #5699 )
2022-09-01 16:30:21 +00:00
Austaras
4ef99f346b
feat(es/minifier): Relax function inline requirement ( #5607 )
2022-09-01 19:36:16 +09:00
Donny/강동윤
217f519940
feat(es/minifier): Ignore closure in initializer from sequential inliner ( #5702 )
2022-08-31 10:33:22 +00:00
Donny/강동윤
d43334eb92
feat(es/minifier): Remove redundant check ( #5664 )
2022-08-30 12:22:18 +09:00
Donny/강동윤
a06e6e9ce5
fix(es/minifier): Fix alias analyzer ( #5639 )
2022-08-26 10:06:25 +00:00
Donny/강동윤
d44bbffa02
fix(es/minifier): Revert alias analyzer work ( #5634 )
2022-08-26 08:45:49 +00:00
Donny/강동윤
00e635b9ea
fix(es/minifier): Improve alias analyzer ( #5500 )
2022-08-26 07:56:40 +00:00
Donny/강동윤
d81fe67e4b
feat(es/minifier): Improve gzipped size ( #5631 )
2022-08-26 05:23:01 +00:00
Austaras
d2f3e29bb0
feat(es/minifier): Ignore recursive usage for function calls and pure calls ( #5526 )
2022-08-17 23:24:10 +00:00
Austaras
ca21fd0c4d
fix(es/minifier): Inline vars declared in conditional paths ( #5392 )
2022-08-05 13:25:28 +00:00
Donny/강동윤
3943eb24d1
feat(es/minifier): Consider char frequencies ( #5375 )
2022-08-03 10:20:17 +00:00
Austaras
77497e4fbe
fix(es/fixer): Don't insert extra paren when left of BinExpr is UpdateExpr ( #5376 )
2022-08-03 08:41:40 +00:00
Donny/강동윤
0e4a03ccc6
fix(es/minifier): Don't inline a callable expression if it's used as a reference ( #5118 )
2022-07-06 03:53:11 +00:00
