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429 Commits

Author SHA1 Message Date
Donny/강동윤
a9fe1d2d22
perf(es/ast): Shrink size of Expr (#7041) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/7019.
 2023-03-09 13:34:11 +00:00
Austaras
1318afe2b4
fix(es/minifier): Bailout regex optimization on invalid flags (#7020) 2023-03-07 11:05:04 +09:00
magic-akari
bb2486c459
fix(es/minifier): Don't create invalid property names (#7010) 2023-03-04 17:58:49 +09:00
Austaras
06cbb9002d
feat(es/minifier): Optimize calls to Boolean/Number/String/Symbol (#7006) 2023-03-04 04:14:14 +00:00
Austaras
cfeb088c37
fix(es/minifier): Don't skip expressions with side effects from seq inliner (#7007) 2023-03-04 12:32:15 +09:00
magic-akari
a27ffd2242
feat(es/minifier): Drop unused import bindings (#6967) 2023-02-21 06:22:25 +00:00
magic-akari
1dfadb8790
fix(es/minifier): Fix optimization of expressions in numeric context (#6965) 2023-02-20 05:28:28 +00:00
magic-akari
9382bda786
fix(es/minifier): Fix toFixed, toPrecision, toExponential and toString of Number (#6960) 2023-02-19 23:18:14 +09:00
Donny/강동윤
725d3fb645
fix(es/minifier): Don't skip shorthand properties from sequential inliner (#6918) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6914.
 2023-02-09 03:07:31 +00:00
Donny/강동윤
951dafbc1a
fix(es/minifier): Don't break ternary with assignment in test (#6906) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6903.
 2023-02-08 02:10:44 +00:00
Donny/강동윤
432dca647b
fix(es/minifier): Respect span hygiene from expr simplifier (#6899) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6896.
 2023-02-07 05:14:19 +00:00
Austaras
c0e72ef64a
fix(es/minifier): Track reassign in parent scope (#6865) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6864.
 2023-01-28 17:19:19 +00:00
Donny/강동윤
d1687d8e01
feat(es/minifier): Improve compatibility of arrows with terser (#6862) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6123.
 2023-01-27 14:36:12 +09:00
Austaras
55225cb994
refactor(es/minifier): Merge cond_init with reassigned (#6850) 
**Description:**

And optimize the following situation
```js
export function genElement(el, state) {
    if ('slot' === el.tag) return el1 = el, genChildren(el1);
    if (el.component) {
        var el1
        return 999;
    }
}
```
which rarely happens in hand written JS, but is often generated by swc merge variable pass.
 2023-01-26 10:17:33 +09:00
Donny/강동윤
21e14787c5
fix(es/minifier): Don't inline into await from sequential inliner (#6839) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6837.
 2023-01-20 08:50:51 +00:00
Donny/강동윤
df702614e1
fix(es/codegen): Fix codegen of string literals with \x000 (#6838) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6836.
 2023-01-20 08:08:58 +00:00
Donny/강동윤
ebce18b221
fix(es/renamer): Handle rest params correctly (#6821) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6819.
 2023-01-16 06:57:16 +00:00
Donny/강동윤
8f683e3f77
feat(es/minifier): Remove noop spreads (#6803) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6788.
 2023-01-13 06:55:04 +00:00
Donny/강동윤
a299fd0418
test(es/minifier): Add a test for an invalid issue (#6802) 
**Related issue:**
 
 - https://github.com/vercel/next.js/discussions/30237#discussioncomment-4674405
 2023-01-13 05:39:22 +00:00
Donny/강동윤
631dd7872b
feat(es/renamer): Support safari10 from the name mangler (#6801) 2023-01-13 05:00:13 +00:00
Donny/강동윤
c14540905f
fix(es/transform): Apply hygiene and resolver if minify is specified (#6793) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6791.
 2023-01-12 07:29:28 +00:00
Donny/강동윤
06770cff04
fix(es/minifier): Make AST compressor respect toplevel (#6775) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/4386.
 2023-01-11 07:04:20 +00:00
Donny/강동윤
336b1d8b4d
fix(es/minifier): Don't inline conditionally initialized vars (#6751) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6750.
 - Closes https://github.com/swc-project/swc/issues/6780.
 2023-01-11 06:01:56 +00:00
Donny/강동윤
ec7e913815
fix(es/minifier): Make name mangler respect toplevel (#6774) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6418.
 2023-01-10 06:42:49 +00:00
HeYunfei
8a6a1cbcf1
feat(es/minifier): Handle boolean in Evaluator (#6756) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/5953.
 2023-01-06 08:15:07 +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
Donny/강동윤
88d40e8ab8
fix(es/minifier): Fix usage counter to fix infinite loop (#6744) 
**Description:**

We skip non-computed property names while checking if we can inline an expression.

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6729.
 2023-01-04 04:31:12 +00:00
Donny/강동윤
206c0dbebe
fix(es/compat): Fix syntax context of async-to-generator (#6741) 
**Description:**

Previously, the `async-to-generator` produced invalid AST, in the aspect of span hygiene.

[Playground](https://play.swc.rs/?version=1.3.24&code=H4sIAAAAAAAAAz1MbQqAIBT77yn2UyG6gNQJuoSZRCAa7xkk4d1TicZgH7C5%2B4yUYGPgBE7ZuyWazREmSIVpxiMAcumi0C3ANZxyvQ6%2Fqa8CehxjaGNpOAcLaWjn%2F6KhKN1dGaoULSpfHPTdxn8AAAA%3D&config=H4sIAAAAAAAAA0WOSwrDMAxE76K1F22hXfgE3fQQxlWCi39ICsQY3z12cMlOjObNTIUfW9AVsiFGGheXKGYHDVIysiWXBRQId2kxnrEpwF2QovFv9BmJQQtt2D2GVpROIj9u92enfEqMk1MQXHRLGR02hUzIfL1MXP3f2XpFSN9tCPWccWa%2BoF0Zk3P8mcYxoR3Kj7IYzwAAAA%3D%3D).
It generate two bindings for `args` so it's invalid.


**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6730.
 2023-01-03 09:45:03 +00:00
HeYunfei
b5d31cc2da
fix(es/utils): Fix detection of hoisting (#6738) 2023-01-03 03:12:01 +00:00
Donny/강동윤
707b1e3cd2
feat(es/minifier): Improve simplification of ?. (#6681) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6492.
 2022-12-20 09:34:50 +00:00
Donny/강동윤
7e6ec8d587
fix(es/minifier): Don't inline invalid LHS into an update argument (#6680) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6641.
 2022-12-20 07:45:29 +00:00
Donny/강동윤
bb9fab8d03
fix(es/minifier): Abort IIFE invoker completely on eval (#6659) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6628.
 2022-12-15 07:49:58 +00:00
Donny/강동윤
7f3e6983e5
test(es/minifier): Enable size tests created from creduce (#6646) 2022-12-14 09:19:51 +00:00
Donny/강동윤
e4e4d6cf6b
fix(es/minifier): Abort sequential inliner on optional chaining (#6637) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6636.
 2022-12-14 04:45:47 +00:00
Donny/강동윤
8b2e1d17e5
fix(es/minifier): Abort IIFE invoker on eval (#6478) 
**Related issue:**

 - https://github.com/vercel/next.js/issues/43052.
 2022-12-13 04:18:57 +00:00
Donny/강동윤
8d8f150792
test(es/minifier): Add tests for preserving top-level directives (#6545) 2022-11-30 05:46:48 +00:00
Yongwook Choi (Leo)
81224b5d67
fix(es/minifier): Don't convert a signed integer literal key to a numeric literal (#6529) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6528.
 2022-11-29 07:01:30 +00:00
Donny/강동윤
9752b43f94
fix(es/minifier): Use unsafe option for arrow => method (#6521) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6504.
 - https://github.com/vercel/next.js/issues/43208.
 2022-11-29 05:23:55 +00:00
Donny/강동윤
27ae59e77b
fix(es/minifier): Make sequential inliner respect resolution order (#6509) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6491.
 2022-11-29 04:50:15 +00:00
Donny/강동윤
b394f9f1d3
fix(es/minifier): Don't drop used variables from sequential inliner (#6520) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6510.
 2022-11-29 04:12:11 +00:00
HeYunfei
8d906b45e5
fix(es/minifier): Preserve classes with side effects in static fields (#6480) 2022-11-24 09:43:00 +00:00
HeYunfei
9154bbc111
fix(es/minifier): Avoid dropping statements which has side-effects (#6476) 2022-11-20 00:26:52 +00:00
Donny/강동윤
15ad2c2568
fix(es/minifier): Abort inliner on fn declarations used multiple time (#6473) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6463.
 2022-11-18 07:53:13 +00:00
HeYunfei
dabea71c44
fix(es/minifier): Preserve unused imported specifiers (#6458) 2022-11-17 00:52:19 +00:00
Donny/강동윤
bb544ba2f5
fix(es/minifier): Fix code for dropping unreachable statements (#6429) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6405.
 2022-11-15 07:00:14 +00:00
Donny/강동윤
99934b09f7
fix(es/minifier): Change the default of mangle.toplevel to false (#6439) 2022-11-15 02:28:38 +00:00
Donny/강동윤
5fd7ab87b6
fix(es/minifier): Preserve op of the op-assignments in seq inliner (#6428) 
**Description:**


**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6407.
 2022-11-15 00:22:06 +00:00
Donny/강동윤
81a4bb304a
fix(es/compat): Fix span hygiene of function naming pass (#6345) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6344.
 2022-11-14 06:03:09 +00:00
Donny/강동윤
dd797f7f15
fix(es/minifier): Don't drop an inlined parameter as a duplicate (#6293) 2022-11-02 01:57:15 +00:00
Donny/강동윤
5d52ae971e
feat(es/minifier): Implement trivial optimizations (#6256) 
**Description:**

1. Evaluate `Number.toString()`.
2. Mark some terser tests as passing where our output is better.
 2022-11-02 01:21:32 +00:00