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641 commits

Author SHA1 Message Date
Sei Lisa
c555a01a48 It's possible to enter Infinity as a float constant, so do that rather than the (float)"inf" kludge. It remains for NaN though. 2016-01-06 01:21:04 +01:00
Sei Lisa
881a33a427 Remove unnecessary line 2016-01-03 01:30:22 +01:00
Sei Lisa
cfb9dee941 Parse_unary_postfix_expression shouldn't accept the token (i.e. advance to the next) if it's not processed. This caused a mismatch between the reported syntax error and the position where it should have been detected. Fixed. 
Added corresponding regression test.
 2016-01-03 01:29:57 +01:00
Sei Lisa
ceb442e931 Improve error reporting, by printing the errored line and a caret (^), taking care to display the beginning of the token the error is at. 2016-01-02 03:39:47 +01:00
Sei Lisa
9469855769 Document the internal behaviour of run_time_permissions under LSO 2015-12-11 02:28:51 +01:00
Sei Lisa
91201f1e30 Remove old TODO and add new one. 
Identifiers can be equal if they belong to different syntactic scopes. That will allow better reuse and less creation of new identifiers, most notably as function and event parameter names.

The implementation would require a stack of counters where the current value is pushed when entering a new scope, and popped when exiting, rather than using a single counter for the whole program.
 2015-12-09 05:11:53 +01:00
Sei Lisa
025f0f8440 str() doesn't return a fully-expanded float. repr() does. 2015-12-09 03:37:01 +01:00
Sei Lisa
6ec2667bf3 Refine comments 2015-09-24 22:02:46 +02:00
Sei Lisa
57cacf29bb Return a float when typecasting returns zero (fixes inconsistent type) 2015-09-22 14:14:26 +02:00
Sei Lisa
aee638e900 Return denormals as 0 in (float)"number". Found by Pedro Oval. 2015-09-21 21:15:48 +02:00
Sei Lisa
2d72b8e198 Fix llList2CSV with -nan in vector and quaternion (with test case). 2015-09-09 18:14:27 +02:00
Sei Lisa
2044f888d4 Fix bug where (typecast)[single_expr] was output as (typecast)(list)single_expr, producing a syntax error in the output for lack of extra parentheses. 2015-09-09 04:14:55 +02:00
Sei Lisa
6b7b366f63 Fix llRot2Euler exception 2015-09-08 03:47:00 +02:00
Sei Lisa
bc4f574b33 Managed to deal with the '-nan' case in llList2CSV. Add test cases. 2015-09-07 02:56:44 +02:00
Sei Lisa
0122d6ed70 On second thought, disable explicitcast for list+nonlist and nonlist+list entirely, as they are not the same as list+(list)nonlist and (list)nonlist+list anyway. 2015-09-05 03:09:46 +02:00
Sei Lisa
d8649deebd nonlist + list was returning the type of the nonlist element. Fixed and added a 
regression test.

Funnily enough, it was correct if explicit cast was active. Removed from explicit cast now that it's active for all.
 2015-09-04 05:56:05 +02:00
Sei Lisa
aa74e6ed64 Sadly, Python can't represent -nan, even though llList2CSV can display it. Add a note to that effect. 2015-09-04 05:46:18 +02:00
Sei Lisa
15f1a07a72 There were more translated events. After an exhaustive analysis this is the definitive list. 2015-08-21 03:35:20 +02:00
Sei Lisa
e264260477 Two events produce different internal names than the event name itself. This was causing the reused names for these events to increase memory usage instead of reducing it. Fixed. 2015-08-21 01:20:28 +02:00
Sei Lisa
f8a6d3d86c Reorganize so that warningPass is always set at least once when constfold is set. 2015-08-19 05:41:21 +02:00
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