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170 Commits

Author SHA1 Message Date
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
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
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
Donny/강동윤
4eab2ed2fc
fix(es/minifier): Don't inline regex for IIFEs (#6283) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6279.

Co-authored-by: Justin Ridgewell <justin@ridgewell.name>
 2022-10-29 00:02:32 +00:00
Donny/강동윤
0376da73c6
test(es/minifier): Add a test for ?? operator (#6282) 
**Related issue:**

 - https://github.com/vercel/next.js/issues/41992.
 2022-10-28 08:00:21 +00:00
Austaras
8c1ac686cb
fix(es/minifier): Don't ignore nullish coalescing (#6272) 2022-10-28 02:00:47 +00:00
Donny/강동윤
743a1aab4f
feat(es/minfiier): Compute more with sequential inliner (#6169) 2022-10-27 00:50:52 +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
86e265a024
feat(es/minifier): Support more statements in seqential inliner (#6248) 
**Description:**

We now inline into the discriminant of a switch statement and into the initializer of for/for-in/for-of statements.
 2022-10-26 13:37:10 +09:00
Donny/강동윤
e9d421bd95
fix(es/minifier): Preserve this in more cases (#6226) 
**Related issue (if exists):**

 - Closes https://github.com/swc-project/swc/issues/6175.
 - Closes https://github.com/swc-project/swc/issues/6137.

Co-authored-by: Justin Ridgewell <justin@ridgewell.name>
 2022-10-21 09:07:00 +00:00
Donny/강동윤
780b5de678
fix(es/minifier): Fix detection of direct eval (#6215) 2022-10-21 12:18:10 +09:00
Donny/강동윤
cc848db80e
feat(es/minifier): Mark more expressions as pure (#6204) 2022-10-20 05:06:32 +00:00
Donny/강동윤
12443db39a
feat(es/minifier): Merge functions using sequential inliner (#6148) 2022-10-20 02:24:09 +00:00
Donny/강동윤
842abd4575
fix(es/minifier): Remove wrong rule (#6201) 
**Related issue:**

 - https://github.com/vercel/next.js/issues/41527.
 2022-10-19 02:14:38 +00:00
Donny/강동윤
f2e8f98d38
feat(es/minifier): Skip function declarations in sequential inliner (#6147) 2022-10-18 02:51:05 +00:00
Donny/강동윤
3f0fcf4fa9
feat(es/minifier): Make sequential inliner self-repeat (#6168) 2022-10-18 02:13:39 +00:00
Donny/강동윤
aec5cdacc6
fix(es/minifier): Preserve this of tagged template literals (#6165) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6146
 2022-10-15 09:11:20 +00:00
Austaras
b40d486253
fix(es/minifier): Consider function body cost while inlining function (#5342) 2022-10-15 05:47:56 +00:00
Donny/강동윤
6d0ca05cb5
fix(es/minifier): Fix ordering issue of analyzer (#6150) 
**Description:**

This is the groundwork for a parallel analyzer. This PR fixes the ordering issue of the analyzer so that the analyzer works identically regardless of the visit order. This patch contains some improvements because previously, we mixed `.and_modify()` and `.or_default()`.
 2022-10-15 04:37:11 +00:00
Donny/강동윤
d334c6e783
feat(es/minifier): Ignore return value if a param of IIFE is not used (#6115) 2022-10-14 02:58:00 +00:00
Donny/강동윤
3d271e82a2
fix(es/minifier): Preserve return values of recursive IIFE (#6142) 
**Description:**

This PR fixes the logic for dropping return values of IIFE.

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6141.
 2022-10-14 09:32:56 +09:00
Donny/강동윤
c37839fc62
feat(es/minifier): Swap more binary expressions (#6134) 2022-10-13 03:45:05 +00:00
Donny/강동윤
5875298377
feat(es/minifier): Merge assignments using sequential inliner (#6103) 2022-10-12 05:31:40 +00:00
Donny/강동윤
66196a65be
feat(es/minifier): Inline pure array literal partially (#6099) 2022-10-12 02:29:40 +00:00
Donny/강동윤
ad960c76c0
feat(es/minifier): Detect type of .length (#6120) 
**Description:**

This PR updates minifier to detect the type of `xxx.length` if possible.
 2022-10-11 23:06:58 +00:00
Austaras
657e5b3111
feat(es/minifier): Inline more lazily initialized vars (#6089) 2022-10-10 09:53:50 +09:00
Donny/강동윤
b0c57458c8
feat(es/minifier): Mark ref to fn as non-call in alias analyzer (#6088) 2022-10-09 09:21:54 +09:00
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
ac150c7ced
feat(es/minifier): Use usage_count in sequential inliner (#6071) 2022-10-06 17:27:34 +00:00
Austaras
c9427f1ec4
fix(es/minifier): Improve infection analysis (#6044) 2022-10-06 18:12:09 +09:00
Donny/강동윤
38df5978c1
fix(es/minifier): Mark delete as a property mutation (#6063) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6004.
 2022-10-06 04:47:58 +00:00
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
Donny/강동윤
c5fb774487
fix(es/minifier): Don't skip unresolved identifiers (#6050) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6049
 2022-10-05 11:44:51 +00:00
Donny/강동윤
197c4e269d
fix(es/minifier): Don't evaluate String.fromCharCode for non-ascii values (#6033) 2022-10-04 16:46:59 +09:00
Austaras
c4850997a2
feat(es/minifier): Inline vars initialized before the declaration (#6027) 2022-10-03 08:58:38 +00:00
Donny/강동윤
877936f626
feat(es/minifier): Clone trivial literals in sequential inliner (#6005) 
**Description:**

As our minifier is two-pass by default, this is enough.

At the first pass, we inline all numeric literals using sequential inliner, and minifier can then inline constants correctly in the second pass.
 2022-10-03 07:20:48 +00:00
Donny/강동윤
2b627524ac
feat(es/minifier): Ignore return values of ignored IIFEs (#6020) 
**Description:**

As we are not using the return value of the function, we can call `ignore_return_value` on the argument of the return statements of IIFE.
 2022-10-02 20:01:56 +09:00