- one-use function call => IIFE should take `eval()` & `arguments` into account
- if unused par...

Merging from master for 2.8.10

- similar case as #1578 but against #1450 instead
- fix `this` binding in #1450 as well

clos...

fixes #1574

those were not optimised for `unused` before, which made it necessary for `reduce_vars` to have ...

Function expression can be assigned to a variable and be given a name. Ensure function name is t...

- omitting trailing semi-colon in do-while breaks non-browser parser, e.g. uglify-js 1.x
- trai...

`side-effects` did not account for IIFEs being able to reference itself thus making its return v...

Merging from master for 2.8.8

- report file sizes and overall run time
- exit with non-zero code upon error

`AST_Label.references` get `.initialize()` to `[]` every time after `.clone()`

So walk down t...

- expose function body to call sites for potential optimisations
- suppress substitution of var...

- unless `toplevel` is enabled
- global `const` works as before

- unless both `beautify` & `screw-ie8` are enabled
- deprecate workaround for if-do-while-else
...

Merging from master for 2.8.7

fixes #1537

- `++a` is the one that is foldable
- transform `a++` into `++a` for better optimisation

- consolidate `cascade` optimisations
- support ++/-- postfixes
- remove redundant optimisatio...

accounts for IE8- scoping

`unsafe` turns undefined keyword into a variable of the same name if found, but that interferes ...

- `undefined` etc. can be redefined at top-level for IE8-, so disable related optimisations
- f...

fixes #1332

fixes #746

Bookmarklet for instance implicitedly assumes a "completion value" without using `return`.
The ...

safe operations
- `a === b` => `a == b`
- `a + -b` => `a - b`
- `-a + b` => `b - a`
- `a+ ...

Merging from master for 2.8.5

fixes #1531

When #1450 optimises `a=b=42`, it stops after the first variable even if both are unused.

fix...

fixes #1537

fixes #1533

- fails to handle `break` in body

fixes #1532

- "" + "a" => "a"
- "" + a + "b" => a + "b"
- "a" + "" => "a" (improving on #45)

Merging from master for 2.8.4

Avoid variable substitution in the following cases:
- use of variable before declaration
- dec...

Patched up `make_node()` without `orig`.

There may be other cases where `start` could be miss...

Merging from master for 2.8.2

Modules like webpack and grunt-contrib-uglify still uses `ast.transform(compressor)` before `Com...

... as we investigate #1516

Merging from master for 2.8.0

not sure if `start.pos` is correct, but oh well

update exception messages

fixes #1510

- consolidate `side-effects` optimisations
- improve string `+` optimisation
- enhance literal...

top-level block-variables not within blocks are global variables

properly compute for top-level block-variables

for `AST_Export` in `AST_Toplevel.figure_out_scope()`

commit 32f76f7ff does not take into account `AST_SymbolFunarg` is also `AST_SymbolVar`, so don't ...

- better inheritance of `Error` sub-classes
- mark parse error against source in CLI

closes ...

- convert `[].forEach()` to for-loops

- improve marking efficiency
- apply smarter `const` replacement to `var`

fixes #1501

closes #1362
closes #1399

- limited to one input file (or `stdin`)
- only works with built-in parser

fixes #520

Makes direct usage within web browser easier, even if officially unsupported.

- Use AST_Destructuring for lhf assignment patterns
- Use AST_DefaultAssign for default assignm...

[ES6] Remove duplicated code

2.8.0 staging

- fix corner cases in `const` optimisation
- deprecate `/*@const*/`

fixes #1497
closes #1498

A function call or IIFE with an immediately preceding comment
containing `@__PURE__` or `#__PURE...

fixes #1492
closes #1493

- only drops side-effect-free arguments
- drop side-effect-free parts with discarded value from `...

- update modified flag between compress() passes
- support IIFE arguments
- fix corner case with ...

- utilise in_use_ids instead of unreferenced()
- drop_unused now up-to-date for subsequent passes...

closes #1459

- remove extra tree scanning phase for `negate_iife`
- `negate_iife` now only deals with the narr...