- only output one top-level function or statement block
- reduce `rng()` granularity from 2^32 to 65536
- fix overflow in `rng()`
- track `canThrow` during `typeof` creation
- `test/run-tests.js` and `test/ufuzz.js` now shares the same `run_code()` and `same_stdout()`
- re-enable fuzzer to generate top-level `NaN`, `Infinity` & `undefined`
- attempt to show beautified output only when `run_code()` output is preserved
Fix bug where a `throw` was generated without expression
Reenable try/catch/finally and fix them up
Skip serialization errors
Allow function decl in other funcs but not in blocks etc
Rename function to be more appropriate
Fix global functions not getting certain names
Make the canaries more likely to appear as expressions
Add a silly rounding edge case
Add a new canary, `c`, which should only ever be incremented
Refactoring
Fix (another) iife not actually being invoked
When a statement hits recursion max return an expression instead of `;`
When a expression hits recursion max also inc `c`
Generate global code as well as function code
Also fixes some argument juggling related bugs.
No longer reduces the recursion max when generating sub functions.
Generates a function arg.
Add used names to var name pool while in that scope
This is a little wonky, possibly a hack, but since it's synchronous code I think it's alright to do this. The alternative is to slice the varnames array and juggle them through almost all the generator functions and there are various reasons why this patch is a better alternative.
Minify generated code, not beautified code. Prevents beautifier bias.
Prevent unnecessary duplication
Remove serialization protection because I think it got handled elsewhere
Abstract toplevel code generation
Add example line of running test case
Add poor man options parser, and some options
Reindent to 4 spaces
Lower chance of `default` generation
Comment example of testing a case and output improvement
Enable `default` clause appearing at any clause index
Removing some training wheels; dont add parens where we dont absolutely need them
Support `-s1` and `-s2` to force specific statements being generated at that recursion level
Add round number to output when failing. For stats and fun and profit.
Solidify statement depth counting. The argument juggling is real.
Renamed option to something long. -scf was ugly and probably confusing.
Fix missing arguments causing `canThrow` to be truthy, generating crashing code
Generate more binary nested expressions
Add black and white list cli options for statement generation
Allows you to explicitly require or forbid certain statements from/to being made.
```
node test/ufuzz.js --without-stmt switch,try -t 5 -r 5 -V
```
```
node test/ufuzz.js --only-stmt ifelse,expr -t 5 -r 5 -V
```
Similar granularity for expression may be added later.
There can be no comma between names; it just does a split on that arg.
Trim down the binary expression generator
Prevent scoping issues in nodejs by preventing certain names in global space
Oh this list was incomplete?
Allow bin-expr to generate assignments too. More vigilant with storing and reusing vars.
Add more global builtin names
Update wrapper code
Also patch Function valueOf
- `side_effects` will clean up inner statements, so checking for an empty function body should suffice
- drop side effects when dropping `return` from statement
- move these optimisations out from `Compressor` to `OutputStream`
- fixes behaviour inconsistency when running uglified code from global or module levels due to redefinition
When fixing catch-related issue in #1715, it tries to optimise for duplicate definitions but did not take anonymous functions into account.
Remove such optimisation for now and we can cover this as a more general rule later.
`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.
Unlike normal variables and even function definitions, these cannot be reassigned, even though assignment expressions would "leak" the assigned value as normal.
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.
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
@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
`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
