AriasCreations/LSL-PyOptimizer
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421 commits

Author SHA1 Message Date
Sei Lisa
cd9bfd426e Update list of pre-allocated keywords. 2015-07-26 00:13:00 +02:00
Sei Lisa
1636e56266 The llGetListLength optimization can be applied to arbitrary expressions. 2015-07-13 07:16:32 +02:00
Sei Lisa
1a67db64dc Get rid of builtins.txt.dat by adding a parameter to the parser ctor. 2015-07-09 20:35:14 +02:00
Sei Lisa
1160fea8cf Fix extendedtypecast problem with negative constants after typecasts. 2015-06-23 06:54:04 +02:00
Sei Lisa
4cc268b574 Fix parenthesizing of expressions having ~ or ! 2015-06-17 18:30:32 +02:00
Sei Lisa
f5d150f7c9 Fix typo in IsBool and add coverage test. Report and fix by Code Violet. 2015-06-17 02:51:46 +02:00
Sei Lisa
52ebe20a67 Refine a comment 2015-06-17 02:31:58 +02:00
Sei Lisa
e35431cecf Forgot to truncate llSqrt to F32. 2015-06-16 04:41:36 +02:00
Sei Lisa
bfabcd16db Fix parser bug where list = anytype was accepted. Fix also the test suite. 2015-06-16 04:16:59 +02:00
Sei Lisa
cdc3a63179 Fix problem due to not copying a node. It still needs more analysis, but this patch is an improvement in that it fixes known problematic cases and doesn't seem to introduce new ones. 2015-06-14 05:11:32 +02:00
Sei Lisa
aaa8d3b7f4 Fix crash when a global was optimized out and another global depended on it. 2015-06-14 03:36:54 +02:00
Sei Lisa
e1d0753fec When a state is removed, remove its global declaration too. 2015-06-13 02:19:15 +02:00
Sei Lisa
d8629f9200 Update behaviour of llListFindList for LSO. 2015-05-24 04:22:31 +02:00
Sei Lisa
faf296fa74 Fix bug with scripts that have UTF-8 characters. 
The parser expects bytes, not unicode.
 2015-05-03 05:19:14 +02:00
Sei Lisa
4302ea846d Don't fall through after optimizing a negable comparison, as it's folded already and the variables were incorrectly set and broke our invariants. 2015-04-21 06:11:25 +02:00
Sei Lisa
d58bc2d350 Implement library function parameter optimization. 
So far only two kinds: angle in llSensor[Repeat] and null keys in functions that take a key parameter.

Closes two TODOs.
 2015-04-21 04:56:09 +02:00
Sei Lisa
17bf0b7a1e Fix recently introduced bug: function renaming failed. 2015-04-17 03:37:24 +02:00
Sei Lisa
be86216124 Do -(b + -c) -> -b+c. Also when a-b is transformed to a+-b, fold -b. 2015-03-29 06:09:26 +02:00
Sei Lisa
a859b3e8e4 Loop over (0, 1) instead of duplicating the code. 2015-03-29 05:43:38 +02:00
Sei Lisa
a19d49d193 Implement optimization of a>=const -> a>const-1 and similar, and fix cases where | -> & or a<0 -> a&0x80000000 is counter-productive. 
The logic becomes quite convoluted.
 2015-03-29 03:47:54 +02:00
Sei Lisa
274b563390 No need to simplify !!! to ! as FoldCond already takes care of that. 2015-03-29 01:27:08 +01:00
Sei Lisa
9aae475125 Implement bool(x < 0) -> bool(x & 0x80000000) w/ function domain check. 
Cleans up three TODOs.
 2015-03-29 00:16:17 +01:00
Sei Lisa
2cb9ad6fe5 Implement a first version of IsBool and use it to optimize && -> & 2015-03-28 23:49:10 +01:00
Sei Lisa
08f48a5c32 Make program flow more consistent, add TODO, refine another TODO. 2015-03-28 23:47:45 +01:00
Sei Lisa
01d8bba3f4 Don't always output a space after the unary minus, only when necessary. 2015-03-28 23:35:08 +01:00
Sei Lisa
4fbbda60a7 Elaborate on the TODO. 2015-03-28 23:34:07 +01:00
Sei Lisa
b8a7e88f1a Add TODO item 2015-03-28 23:31:11 +01:00
Sei Lisa
c154d5eb0d Deal with a number of issues in some expressions. 
- Move TODO of <0 to !=-1 to boolean, as it's counter-productive otherwise.
- All a!=b except list!=list are equivalent to !(a==b).
- Change a>b to b<a to simplify cases to analize.
- Proper fall-through in some spots, or return in some others where it didn't apply.
- Simplify handling of a<-2147483648 as a&0, falling through, instead of coping with it ourselves.
 2015-03-28 20:23:47 +01:00
Sei Lisa
de33c2df01 Simplify operands of bitwise OR expressions as booleans. Deals with a TODO in a more general way. 2015-03-28 20:16:06 +01:00
Sei Lisa
6813bb0458 Make the second pass of FoldScript look a bit more logic. 2015-03-28 20:14:17 +01:00
Sei Lisa
2a617b34d0 Fix bug where a<<1 was not immediately optimized, and other minor changes. 
* Add a TODO.
* Don't make two fold passes if DCR is off.
* Remove comment about parentheses that no longer applies.
 2015-03-28 14:45:53 +01:00
Sei Lisa
edbc240408 Remove 'Local' from symbol table; add note about an unimplemented feature; improve symbol table documentation; rename a helper variable. 2015-03-27 02:12:32 +01:00
Sei Lisa
921955f321 Implement function overriding syntax extension, fixing a bug on the way. 
The funcoverride option allows defining multiple functions with the same name, each overriding the former. That's for compatibility with Firestorm, whose optimizer does that.

While on it, fix a bug where defining a function whose name matches a library function was not reporting an error, and rename self.functions to self.funclibrary for clarity. It also brings consistency with other parts of the code and with the code documentation.
 2015-03-27 00:35:37 +01:00
Sei Lisa
3839863a21 EInternal is no longer reused. 2015-03-26 23:26:36 +01:00
Sei Lisa
e21173170e Simplify the builtins.txt parser REs by checking the types in the code. 
Gives us more granularity reporting errors.
 2015-03-26 23:08:54 +01:00
Sei Lisa
c8bec32242 Add a comment to prevent mistakes. 2015-03-15 19:49:52 +01:00
Sei Lisa
56f40a9c76 Ensure the script is Unicode before parsing. 2015-03-15 19:19:57 +01:00
Sei Lisa
b8f73bb5e1 Don't open the script in binary mode, open it in text mode. 
Not too sure about this change, but it eliminates CRs before LFs.
 2015-03-15 02:18:01 +01:00
Sei Lisa
9e0ed0521b Reorganize main to use getopt. Implement -o for output file and -O help. 
Also --version and -h/--help.
 2015-03-14 23:17:15 +01:00
Sei Lisa
9bd66dd6fa Optimize out function calls to SEF functions with non-SEF arguments. 
The function call is removed, and the arguments transformed to a block of expression statements.
 2015-03-13 23:48:24 +01:00
Sei Lisa
df31a69465 In functions that end in 'return;', remove the 'return;'. 
This allows better side-effect analysis, because 'return' is not side-effect free unless it's the last statement. But that's better handled in the dead code removal module, as the comment specifies.
 2015-03-13 23:46:23 +01:00
Sei Lisa
9cb02839bc Remove extra code. 2015-03-13 23:45:56 +01:00
Sei Lisa
f6b472133a Optimize [elem] -> (list)elem on output. Saves us headaches. 2015-03-13 22:42:00 +01:00
Sei Lisa
2948399bf8 Revert 3b7e461d82, as it introduced bugs. 2015-03-13 22:13:00 +01:00
Sei Lisa
f7556e7a66 Remove globals from symbol table when no longer necessary. 2015-03-13 20:11:57 +01:00
Sei Lisa
fc7abc7d99 Fix bug broken by 562154e7aa. 
Referencing a global that was optimized out, caused a crash.

```
integer DEBUG = 1;

default
{
    state_entry()
    {
        if (DEBUG) llOwnerSay("DEBUG");
    }
}
```
 2015-03-13 16:49:31 +01:00
Sei Lisa
3d965f13e0 Fix bug with the scope of function calls. 
Makes this script work, as it should:

`default { timer() { string llSay; llSay(0, llSay); } }`
 2015-03-13 16:43:35 +01:00
Sei Lisa
890e960b57 Implement Lazy List reading. Update docs according to last changes (in FS too). 
Adds a new tree node type, SUBIDX, which hopefully should never appear in actual output. If it does, it's prefixed with the string (MISSING TYPE) as a cue to the programmer.
 2015-03-13 06:38:35 +01:00
Sei Lisa
535dc8434c Allow a code block instead of a ':' as terminator for 'case' and 'default'. 
For Firestorm compatibility.
 2015-03-13 05:16:22 +01:00
Sei Lisa
39b6036671 Remove 'Scope' from functions in symbol table. Function scope is always 0. 2015-03-13 05:12:09 +01:00