| Age | Commit message (Expand) | Author |
|---|
| 2017-03-27 | `has_side_effects()` should take `AST_Switch.expression` into account (#1699)...fixes #1698 | Alex Lam S.L |
| 2017-03-27 | fix typeof side effects (#1696)...`statement_to_expression()` drops `typeof` even if it operates on undeclared variables.
Since we now have `drop_side_effect_free()`, replace and remove this deprecated functionality. | Alex Lam S.L |
| 2017-03-27 | preserve side effects in switch expression (#1694)...fixes #1690 | Alex Lam S.L |
| 2017-03-27 | fix `cascade` on anonymous function reference (#1693)...Unlike normal variables and even function definitions, these cannot be reassigned, even though assignment expressions would "leak" the assigned value as normal. | Alex Lam S.L |
| 2017-03-27 | handle overlapped variable definitions (#1691)...Process variable definitions with or without assigned values against:
- `arguments`
- named function arguments
- multiple definitions within same scope
Essentially demote variable declarations with no value assignments.
Also fixed invalid use of `AST_VarDef` over `arguments` - should use a member of `AST_SymbolDeclaration` instead. | Alex Lam S.L |
| 2017-03-26 | fix `delete` related issues in `collapse_vars` and `reduce_vars` (#1689) | Alex Lam S.L |
| 2017-03-26 | ufuzz: workaround function name and toString() (#1688)...fixes #1686 | Alex Lam S.L |
| 2017-03-26 | fix `cascade` on `delete` operator (#1687)...Conditions including strict mode would make `delete` return `true` or `false`, and are too complex to be evaluated by the compressor.
Suppress assignment folding into said operator.
fixes #1685 | Alex Lam S.L |
| 2017-03-26 | fallthrough should not execute case expression (#1683)...- de-duplicate trailing cases only, avoid all potential side-effects
- enable switch statement fuzzing
fixes #1680 | Alex Lam S.L |
| 2017-03-26 | optimize conditional when condition symbol matches consequent (#1684) | kzc |
| 2017-03-26 | suppress switch branch de-duplication upon side effects (#1682)...fixes #1679 | Alex Lam S.L |
| 2017-03-26 | fix side-effects detection on switch statements (#1678)...extension of #1675 | Alex Lam S.L |
| 2017-03-26 | Improve fuzzer. :) (#1665)...@qfox Put value constants in a global constant 74c0fb9
@qfox And the other string based values as well a5033c5
@qfox Be more strict about parameters, allow max to be optional 9c7ce70
@qfox Support a `V` (capital) flag to only log out at intervals 2d822c7
@qfox Fewer magic variables a6a9a7c
@qfox Fix decrement such that a function is created when n=1 7e4b017
@qfox Add more values 64e596e
@qfox Make `b` appear more often d33191a
@qfox Add functions that contain (only..) functions 29a86e3
@qfox Allow the block statement to contain multiple statements 7570484
@qfox Make the interval count a constant d587ad8
@qfox Enable mangling, disable post-processing … 4dc8d35
@qfox Add more simple value that may trigger syntactic errors 8496d58
@qfox Add `else` to some `if` statements a4aed65
@qfox Move iife to expr generator, fix missing recursion arg e453159
@qfox Improve output on error where it wasnt printing the last code properly 4565a1a
@qfox Add switch statement to generator ceafa76
@qfox Add var statement, support optional comma for expr generator b83921b
@qfox Expression generator should use a simple value instead of `0` as recu… … 9d1a5c7
@qfox const -> var to keep things es5... 0143099
@qfox Add more simple values that may trigger edge cases 5e124f1
@qfox Add central name generator, take special care for global functions aeb7682
@qfox Add some `return` and function declaration cases to statement generator 6c9c3cc
@qfox Exclude switches from generator for now 91124b2
Put value constants in a global constant
And the other string based values as well
Be more strict about parameters, allow max to be optional
Support a `V` (capital) flag to only log out at intervals
Fewer magic variables
Fix decrement such that a function is created when n=1
Add more values
Make `b` appear more often
Add functions that contain (only..) functions
Allow the block statement to contain multiple statements
Make the interval count a constant
Enable mangling, disable post-processing
Mangling is kind of the whole point...
Similarly, to beautify the minified code afterwards may supress bugs so it's probably best not to beautify the code prematurely. And there's no point anyways since you won't see it most of the time and only care about the main input anyways.
Add more simple value that may trigger syntactic errors
Add `else` to some `if` statements
Move iife to expr generator, fix missing recursion arg
Improve output on error where it wasnt printing the last code properly
Add switch statement to generator
Add var statement, support optional comma for expr generator
Expression generator should use a simple value instead of `0` as recursion default
const -> var to keep things es5...
Add more simple values that may trigger edge cases
Add central name generator, take special care for global functions
Add some `return` and function declaration cases to statement generator
Exclude switches from generator for now
Enable switch generation because #1667 was merged
Add typeof generator
Add some elision tests
Add a new edge case that returns an object explicitly
Add all binary ops to try and cover more paths
Forgot four binops and added `Math` to var name pool
Harden the incremental pre/postfix tests
Improve switch generator, allow `default` to appear at any clause index
Add try/catch/finally generation
Prevent function statements being generated
Add edge case with decremental op and a group
Disable switch generation until #1679 and #1680 are solved
Only allow `default` clause as last clause for now
Tentatively enable `throw`, `break` and `continue` statements when in valid contexts | Peter van der Zee |
| 2017-03-26 | improve switch optimisations (#1677)...- correctly determine reachability of (default) branches
- gracefully handle multiple default branches
- optimise branches with duplicate bodies
fixes #376
fixes #441
fixes #1674 | Alex Lam S.L |
| 2017-03-25 | fix `has_side_effects()` (#1675)...`AST_Try` is an `AST_Block`, so besides try block we also need to inspect catch and finally blocks for possible side effects.
Also extend this functionality to handle `AST_If` and `AST_LabeledStatement` while we are at it.
fixes #1673 | Alex Lam S.L |
| 2017-03-25 | fix `reduce_vars` on `AST_Switch` (#1671)...Take conditional nature of switch branches into account.
fixes #1670 | Alex Lam S.L |
| 2017-03-25 | fix typeof side-effects (#1669)...`has_side_effects()` does not take `typeof`'s magical power of not tripping over undeclared variable into account.
fixes #1668 | Alex Lam S.L |
| 2017-03-25 | fix `dead_code` on `AST_Switch` (#1667)...Need to call `extract_declarations_from_unreachable_code()`.
fixes #1663 | Alex Lam S.L |
| 2017-03-25 | fix invalid `AST_For.init` (#1657)...Turns out the only place in `Compressor` which can generate invalid `AST_For.init` is within `drop_unused()`, so focus the fix-up efforts.
supercedes #1652
fixes #1656 | Alex Lam S.L |
| 2017-03-25 | introduce ufuzz.js (#1655)...closes #1647 | Alex Lam S.L |
| 2017-03-24 | fix cascade of `evaluate` optimisation (#1654)...Operator has changed, so break out from rest of the rules.
fixes #1649 | Alex Lam S.L |
| 2017-03-24 | fix corner case in `AST_For.init` (#1652)...Enforce `null` as value for empty initialisation blocks.
fixes #1648 | Alex Lam S.L |
| 2017-03-24 | fix assignment extraction from conditional (#1651)...fixes #1645
fixes #1646 | Alex Lam S.L |
| 2017-03-24 | fix assignment substitution in sequences (#1643)...take side effects of binary boolean operations into account
fixes #1639 | Alex Lam S.L |
| 2017-03-24 | improve error marker placement (#1644)...For AST_UnaryPrefix, points to the operator rather than end of expression. | Alex Lam S.L |
| 2017-03-24 | fix expect_stdout (#1642)...`compress()` may modify input ASTs
add tests for #1627 & #1640 | Alex Lam S.L |
| 2017-03-24 | improve collapsible value detection (#1638)...- #1634 bars variables with cross-scope references in between to collapse
- but if assigned value is side-effect-free, no states can be modified, so it is safe to move | Alex Lam S.L |
| 2017-03-23 | account for cross-scope modifications in `collapse_vars` (#1634)...mostly done by @kzc
fixes #1631 | Alex Lam S.L |
| 2017-03-23 | introduce compressor.info() (#1633)...report the following only when `options.warnings = "verbose"`
- unused elements due to inlining
- collpased variables | Alex Lam S.L |
| 2017-03-23 | fix a bug in simple_glob (#1632)...- "?" should not match "/"
- other minor clean-ups | Alex Lam S.L |
| 2017-03-23 | metadata cleanup (#1630)...- mention performance anomaly in Node 7 and drop from CI
- remove unused npm "scripts"
- mark browserify dependency as optional
- stop `test/mozilla-ast.js` from spamming console output in later versions of Node.js | Alex Lam S.L |
| 2017-03-21 | throw parse error on invalid assignments (#1627)...fixes #1626 | Alex Lam S.L |
| 2017-03-19 | make `expect_stdout` work on Node.js 0.12 (#1623)...That particular version of Node.js has messed up error messages, so provide a version-specific workaround.
Also fixed an formatting issue which would cause `expect_stdout` to fail if error message contains excerpts of input.
Apply `expect_stdout` to more applicable tests. | Alex Lam S.L |
| 2017-03-19 | fix commit 88fb83a (#1622)...The following is wrong:
`a == (b ? a : c)` => `b`
Because:
- `b` may not be boolean
- `a` might have side effects
- `a == a` is not always `true` (think `NaN`)
- `a == c` is not always `false` | Alex Lam S.L |
| 2017-03-19 | fix AST_Binary.lift_sequences() (#1621)...Commit eab99a1c fails to account for side effects from compound assignments. | Alex Lam S.L |
| 2017-03-19 | transform String.charAt() to index access (#1620)...Guarded by `unsafe` as `charAt()` can be overridden. | Alex Lam S.L |
| 2017-03-18 | handle runtime errors in `expect_stdout` (#1618)...allow test to pass if both `input` and `expect` throws the same kind of error | Alex Lam S.L |
| 2017-03-18 | fix top-level directives in compress tests (#1615)...`input` and `expect` are parsed as `AST_BlockStatement` which does not support `AST_Directive` by default.
Emulate that by transforming preceding `AST_SimpleStatement`s of `AST_String` into `AST_Directive`. | Alex Lam S.L |
| 2017-03-17 | fix chained evaluation (#1610)...`reduce_vars` enables substitution of variables but did not clone the value's `AST_Node`.
This confuses `collapse_vars` and result in invalid AST and subsequent crash.
fixes #1609 | Alex Lam S.L |
| 2017-03-16 | extend `test/run-tests.js` to optionally execute uglified output (#1604)...fixes #1588 | Alex Lam S.L |
| 2017-03-16 | make `collapse_vars` consistent with `toplevel` (#1608)...fixes #1605 | Alex Lam S.L |
| 2017-03-16 | fix `hoist_vars` on `reduce_vars` (#1607)...`hoist_vars` converts variable declarations into plain assignments, which then confuses `reduce_vars`
fixes #1606 | Alex Lam S.L |
| 2017-03-15 | fix `AST_Node.optimize()` (#1602)...Liberal use of `Compressor.transform()` and `AST_Node.optimize()` presents an issue for look-up operations like `TreeWalker.in_boolean_context()` and `TreeWalker.parent()`.
This is an incremental fix such that `AST_Node.optimize()` would now contain the correct stack information when called correctly. | Alex Lam S.L |
| 2017-03-11 | disallow parameter substitution for named IIFEs (#1596)...Self-referenced function has non-fixed values assigned to its parameters.
Let `unused` & `!keep_fnames` do the scanning, then apply `reduce_vars` only to unnamed functions.
fixes #1595 | Alex Lam S.L |
| 2017-03-10 | support multi-line string in tests (#1590)...`expect_exact` sometimes have multiple lines and `\n` are hard to read.
Use array of strings to emulate line breaks and improve readability. | Alex Lam S.L |
| 2017-03-10 | fixup for #1585 (#1589)...As patched on `harmony`, `statement()` is the only user of `embed_tokens()` with a missing error branch.
Updated test case and match up with `harmony` to facilitate future merging. | Alex Lam S.L |
| 2017-03-10 | fix catch variable reference in IE8 (#1587)...`AST_Scope.def_variable()` will overwrite `AST_Symbol.thedef`, so save a copy before calling.
fixes #1586 | Alex Lam S.L |
| 2017-03-10 | Correctly raise a parse exception with a missing loop body (#1585) | Michael Mior |
| 2017-03-09 | fix & improve function argument compression (#1584)...- one-use function call => IIFE should take `eval()` & `arguments` into account
- if unused parameter cannot be eliminated, replace it with `0`
fixes #1583 | Alex Lam S.L |
| 2017-03-09 | scan RHS of dropped assignments (#1581)...- similar case as #1578 but against #1450 instead
- fix `this` binding in #1450 as well
closes #1580 | Alex Lam S.L |
