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120 Commits

Author SHA1 Message Date
Donny/강동윤
6d9763e8c0
fix(es/renamer): Don't use symbols used by declarations if eval exists (#7116) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6971.
 - Closes https://github.com/swc-project/swc/issues/7094.
 2023-03-22 06:31:43 +00:00
Anders Kaseorg
493a4f7042
fix(es/minifier): Remove wrong optimization of new RegExp(…) (#7091) 2023-03-17 03:22:02 +00:00
Donny/강동윤
86295ba8f2
fix(es/minifier): Preserve delete of unresolved variables (#7072) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/7045.
 2023-03-15 02:31:08 +00:00
Austaras
06cbb9002d
feat(es/minifier): Optimize calls to Boolean/Number/String/Symbol (#7006) 2023-03-04 04:14:14 +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
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
7f3e6983e5
test(es/minifier): Enable size tests created from creduce (#6646) 2022-12-14 09:19:51 +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
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
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
48bb0cc51d
fix(es/minifier): Fix collapse_vars (#6235) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/6217
 2022-10-23 13:43:10 +09:00
Austaras
b40d486253
fix(es/minifier): Consider function body cost while inlining function (#5342) 2022-10-15 05:47:56 +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
c37839fc62
feat(es/minifier): Swap more binary expressions (#6134) 2022-10-13 03:45:05 +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
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
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
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
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
bc2c0f4133
fix(es/codegen): Fix codegen of a negative number (#5980) 
**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/5912.
 2022-09-28 13:40:07 +00:00
Donny/강동윤
9d1974248d
fix(es/minifier): Fix skipping logic of sequential inliner (#5956) 
**Description:**

This PR implements `is_skippable_for_seq` fully.

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/5935.
 2022-09-26 15:05:52 +00:00
Donny/강동윤
97647861bf
fix(es/minifier): Track aliasing via assignments (#5940) 2022-09-23 14:22:41 +09:00
Donny/강동윤
e9c704182b
feat(es/minifier): Improve analysis of reassignments (#5931) 2022-09-22 10:22:18 +00:00
Donny/강동윤
19ce2737b1
feat(es/minifier): Collapse let without init (#5909) 
**Description:**

This patch applies the variable collapsing logic for the variables declared with `var` to the variables declared with `let`. This requires some patch about the behavior of visitors about `BlockStmt`, so this patch includes relevant changes.

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/5696.
 2022-09-21 15:04:29 +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
aacf7aaf80
feat(es/minifier): Drop function identifier in a single pass (#5901) 
**Description:**

We only inline function declarations if `ref_count` is 1, so we don't need to preserve the name of the function.

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/5682.
 2022-09-19 15:07:56 +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
Austaras
63fb0c4ad3
feat(es/minifier): Move assign with seq init into seq (#5847) 2022-09-14 12:57:18 +00:00
magic-akari
2b2464271a
fix(es/codegen): Remove redundant ; after export default decl (#5851) 2022-09-14 06:07:15 +00:00
Austaras
8567a38c4a
feat(es/minifier): Extend inlining of identifiers to multi-usage (#5832) 2022-09-13 03:52:47 +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
5e2b6d5551
feat(es/minifier): Remove useless ES version check (#5703) 2022-08-31 11:11:54 +00:00
Donny/강동윤
d43334eb92
feat(es/minifier): Remove redundant check (#5664) 2022-08-30 12:22:18 +09:00
Donny/강동윤
537449e53b
fix(es/codegen): Emit trailing semicolon (#5659) 2022-08-29 10:10:55 +00:00
Donny/강동윤
a06e6e9ce5
fix(es/minifier): Fix alias analyzer (#5639) 2022-08-26 10:06:25 +00:00