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path: root/test/compress/collapse_vars.js
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2018-02-01account for declaration assignment in `collapse_vars` (#2859)Alex Lam S.L
fixes #2858
2018-01-31relax `collapse_vars` on `AST_Exit` (#2855)Alex Lam S.L
First introduced in #1862 to stop assignments to migrate beyond `return` or `throw`. Since then `collapse_vars` has been improved to handle various side-effect-related corner cases.
2018-01-29compress chained compound assignments (#2850)Alex Lam S.L
2018-01-19improve `unused` on built-in functions (#2817)Alex Lam S.L
2018-01-16general improvements around `AST_ForIn` (#2796)Alex Lam S.L
- compress using `collapse_vars` - remove unused `name` - simplify `loop_body`
2018-01-15enhance `collapse_vars` (#2788)Alex Lam S.L
2018-01-09patch variable declaractions extracted within `catch` (#2753)Alex Lam S.L
fixes #2749
2017-12-26replace single-use recursive functions (#2659)Alex Lam S.L
fixes #2628
2017-12-18improve transversal efficiency in `collapse_vars` (#2611)Alex Lam S.L
fixes #2603
2017-12-15handle `inline` of function arguments (#2590)Alex Lam S.L
fixes #2476
2017-12-14improve `collapse_vars` (#2591)Alex Lam S.L
- handle single-use assignments other than `AST_VarDef` - scan `AST_Call` for candidates
2017-12-14drop local assign-only variable in `return` (#2587)Alex Lam S.L
2017-12-14fold `cascade` functionality into `collapse_vars` (#2586)Alex Lam S.L
2017-12-13recover lost opportunities from #2574 (#2584)Alex Lam S.L
2017-12-13improve `collapse_vars` on side-effect-free replacements (#2583)Alex Lam S.L
2017-12-12fix `AST_VarDef.may_throw()` (#2580)Alex Lam S.L
2017-12-11fix `collapse_vars` on `switch` (#2578)Alex Lam S.L
2017-12-11handle exceptional flow correctly in `collapse_vars` (#2574)Alex Lam S.L
fixes #2571
2017-11-28improve synergy between `collapse_vars` & `unused` (#2521)Alex Lam S.L
2017-11-28drop assignment in `AST_VarDef.value` (#2522)Alex Lam S.L
fixes #2516
2017-11-24fix argument/atom collision by `collapse_vars` (#2507)Alex Lam S.L
fixes #2506
2017-11-24eliminate invalid state caching in `collapse_vars` (#2502)Alex Lam S.L
fixes #2497
2017-11-13fix replacement logic in `collapse_vars` (#2475)Alex Lam S.L
2017-11-12allow symbol replacement on multiple occurrences (#2472)Alex Lam S.L
- all-or-nothing replacement - avoid unmangleable names fixes #2436
2017-11-11implement compress option `reduce_funcs` (#2466)Alex Lam S.L
- inline single-use function declarations as expressions when permissible - depend on `reduce_vars` - enabled by default - disable for speed critical code fixes #2464
2017-11-09fix multiple nested function substitutions (#2458)Alex Lam S.L
fixes #2449
2017-11-06consolidate & enhance `unused` (#2439)Alex Lam S.L
- defer declaration removal in `collapse_vars` - account for `AST_SymbolFunarg` in deduplication - private accounting for `collapse_vars` - avoid issues with identity reference due to deep cloning fixes #2437
2017-11-05maintain call argument order in `collapse_vars` (#2426)Alex Lam S.L
fixes #2425
2017-10-23deduplicate declarations regardless of `toplevel` (#2393)Alex Lam S.L
2017-10-22safer `properties` transform (#2391)Alex Lam S.L
`{ a: x, b: y }.a` => `[ x, y ][0]` - `x` cannot be function containing `this` `[ x, y, z ][1]` => `(x, z, y)` - only if `z` is side-effect-free
2017-10-19enhance `collapse_vars` around lazy operations (#2369)Alex Lam S.L
2017-10-18fix `AST_PropAccess` in `collapse_vars` (take 3) (#2375)Alex Lam S.L
Suppress scanning beyond assignment to `a.b`
2017-10-17fix `AST_PropAccess` in `collapse_vars` (take 2) (#2372)Alex Lam S.L
fixes #2364
2017-10-17fix `AST_PropAccess` in `collapse_vars` (#2370)Alex Lam S.L
fixes #2364
2017-10-17account for side-effects from `AST_This` in `collapse_vars` (#2365)Alex Lam S.L
2017-10-09perform `reduce_vars` on safe literals (#2351)Alex Lam S.L
- constant expression - single reference - same scope - not across loop body
2017-10-08collapse `a.b` whenever safe (#2350)Alex Lam S.L
2017-09-20suppress `collapse_vars` of `this` into "use strict" (#2326)Alex Lam S.L
fixes #2319
2017-09-16handle LHS side-effects on `cascade` & `collapse_vars` (#2314)Alex Lam S.L
fixes #2313
2017-09-04fix `collapse_vars` on default function argument (#2299)Alex Lam S.L
Avoid collision with local variable `undefined` under certain corner cases. fixes #2298
2017-07-14drop `unused` compound assignments (#2230)Alex Lam S.L
fixes #2226
2017-07-08handle duplicate argument names in `collapse_vars` (#2215)Alex Lam S.L
2017-07-06suppress `collapse_vars` of `this` as call argument (#2204)Alex Lam S.L
fixes #2203
2017-07-02drop argument value after `collapse_vars` (#2190)Alex Lam S.L
2017-07-02improve `inline` efficiency (#2188)Alex Lam S.L
... by teaching `collapse_vars` some new tricks. fixes #2187
2017-06-06implement function inlining (#2053)Alex Lam S.L
- empty body - single `AST_Return` - single `AST_SimpleStatement` - avoid `/*#__PURE__*/` Miscellaneous - enhance single-use function substitution fixes #281
2017-05-12remove support for `const` (#1910)Alex Lam S.L
As this is not part of ES5.
2017-05-12fix invalid transform on `const` (#1919)Alex Lam S.L
- preserve (re)assignment to `const` for runtime error - suppress `cascade` on `const`, as runtime behaviour is ill-defined
2017-05-06enhance `collapse_vars` (#1862)Alex Lam S.L
- extend expression types - `a++` - `a=x;` - extend scan range - `for(init;;);` - `switch(expr){case expr:}` - `a = x; a = a || y;` - terminate upon `debugger;` closes #1821 fixes #27 fixes #315 fixes #1858
2017-04-20improve `unused` (#1832)Alex Lam S.L
- extract leading value with side-effects out of `var` statement - reduce scanning of `AST_Definitions` from 3 passes to just once
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