Donny/강동윤
a7f0e84bbf
feat(es/minifier): Drop useless assignments ( #3528 )
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testing:
- Allow skipping diff using an environment variable `DIFF`.
swc_ecma_minifier:
- `pure`: Drop useless assignemnts.
2022-02-11 08:43:48 +00:00
Donny/강동윤
292add7d26
fix(es/minifier): Make sequences less aggressive ( #3480 )
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swc_ecma_minifier:
- `sequences`: Abort on RHS contains the left id.
2022-02-08 19:10:22 +09:00
Donny/강동윤
5812c3c10f
fix(es/minifier): Fix codemirror ( #3462 )
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swc_ecma_minifier:
- Mark for in/of loops as executed multiple times.
- Check captured identifiers while invoking IIFE.
2022-02-07 11:11:53 +09:00
Donny/강동윤
68e9017376
fix(es/minifier): Improve minifier ( #3350 )
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swc_ecma_transforms_optimization:
- `expr_simplifier`: Track more changes.
swc_ecma_minifier:
- Analyze after applying the pure optimizer.
- Preserve access to a variable not in scope.
- `compress`: Remove string literal if it was not a directive.
- `pure/collapse_vars`: Merge vars declared in the first statement into one with initializers if `collapse_vars` and `join_vars` are enabled.
- `unused`: Use `usage_count` instead of `ref_count`.
- `unused`: Fix dropping rule for member expressions.
- `unused`: Fix dropping rule for declarations.
- `hoist_props`: Preserve exported items.
2022-01-27 15:36:22 +09:00
Donny/강동윤
d52a1f3899
fix(es/minifier): Don't inline a var if the initializer is reassigned ( #3333 )
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swc_ecma_minifier:
- Consider reassignment to initializer while inlining a variable.
2022-01-21 14:01:20 +09:00
Donny/강동윤
4f23d651d1
fix(es/minifier): Consider capturing while inlining ( #3322 )
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swc_ecma_minifier:
- Don't inline functions if it captures the environment.
2022-01-21 10:24:41 +09:00
Donny/강동윤
57204e39cd
fix(es/minifier): Don't inline functions used as arguments ( #3320 )
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swc_ecma_minifier:
- Preserve a variable initialized with a function expression if it's used as an argument.
2022-01-20 16:06:23 +09:00
Donny/강동윤
1aa494b1c0
fix(es/minifier): Fix logic for checking arguments ( #3313 )
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swc_ecma_minifier:
- Don't mark `arguments` in nested scope as a inline blocker.
2022-01-19 17:39:24 +09:00
Donny/강동윤
8e796cdc0a
fix(es/minifier): Don't emit invalid code ( #3302 )
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swc_ecma_minifier:
- Add lots of debug assertions for invalid codes.
- Remove all invalid AST nodes eagerly.
- `pure`: Normalize `PatOrExpr`.
- `analyzer`: Handle `PatOrExpr` correctly.
2022-01-18 20:52:21 +09:00
Donny/강동윤
210ecf83bb
feat(es/minifier): Drop more expressions from parallel optimizer ( #3303 )
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swc_ecma_minifier:
- `pure`: Implement more rule for dropping useless expressions.
2022-01-18 16:45:47 +09:00
Donny/강동윤
b55ae4b312
fix(es/minifier): Fix analysis of unary expressions ( #3286 )
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swc_ecma_minifier:
- Mark update as usage and assignment. (Closes #3265 )
2022-01-17 14:28:35 +09:00
Donny/강동윤
efd86715c9
fix(es/minifier): Preserve side effects in correct position ( #3263 )
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swc_ecma_minifier:
- Add `fake_block` mark.
- Inject statements for side effects from `visit_mut_stmt` instead of `visit_mut_stmt_likes`. (Closes #2926 )
2022-01-14 16:36:48 +09:00
Donny/강동윤
74fd353053
fix(es/minifier): Fix bugs ( #3238 )
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swc_ecma_minifier:
- `collapse_vars`: Respect `mutated`. (Closes #2679 )
- Add a test for https://github.com/vercel/next.js/issues/31084 .
2022-01-12 16:57:54 +09:00
Austaras
cdb46cfb91
fix(es/hygiene): Visit computed properties in usage analyzer ( #3217 )
2022-01-09 15:42:19 +09:00
Donny/강동윤
69b5f799f3
fix(es/minifier): Disable inlining of expressions from collapse_vars ( #3200 )
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swc_ecma_minifier:
- `collapse_vars`: Disable for member expressions. (Closes #2614 )
- `sequences`: Respect `inline_prevented`.
2022-01-06 20:49:10 +09:00
Donny/강동윤
1c1c9f0eae
fix(es/minifier): Fix bugs ( #2955 )
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swc_ecma_minifier:
- Improve the script for extracting inputs from next.js app.
- Ensure the name is removed on inlining.
- Respect `inline_prevented`.
2022-01-05 05:12:52 +09:00
magic-akari
52961804d1
feat(es/codegen): Make the output for empty objects and empty statements pretty ( #3171 )
2022-01-03 05:54:58 +09:00
Donny/강동윤
a81661c74a
perf(es/hygiene): Fix performance bug ( #3090 )
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swc_ecma_transforms_base:
- `hygiene`: Skip checking a symbol if we are sure that it will be discarded.
swc_ecma_laoder:
- Optimize `NodeModulesResolver` by trying `.js` first.
2021-12-21 23:52:13 +09:00
David Sherret
beb2c73c2c
fix(swc/hygiene): Prefer not renaming top level variables ( #2940 )
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swc_ecma_transforms_base:
- `hygiene`: Use concept of depth to prevent renaming top level nodes.
2021-12-04 01:55:27 +09:00
Donny/강동윤
fa342a0067
fix(es/minifier): Fix bugs ( #2779 )
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swc_ecma_minifier:
- Don't optimize `1 / t == -1 / 0` as `!1`.
- Don't optimize `e === -1 / 0` as false.
- Don't inline string literals in arguments, if it's used multiple time. (https://github.com/vercel/next.js/issues/31291 )
2021-11-20 17:06:18 +09:00
Donny/강동윤
f2c67b8caf
fix(es/minifier): Don't inline string literals if it's used multiple time ( #2748 )
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swc_ecma_minifier:
- Don't inline strings because it's simple.
- Inline short strings.
2021-11-15 14:03:03 +09:00
Donny/강동윤
2b2f6955f2
refactor: Flatten ecmascript ( #2708 )
2021-11-10 19:00:54 +09:00
