Sei Lisa
c68a1f4ad6
Add copyright notices to all files, to prepare the program for release.
2015-03-05 23:18:41 +01:00
Sei Lisa
f730843762
More TODO tweaking.
2015-03-05 06:20:11 +01:00
Sei Lisa
b73805e0ce
Add "lazy lists" assignment support (mylist[index] = value).
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Add support for LAMBDA (empty) tree nodes while on it, that allow us to define private stuff at the top without caring about Loc.
2015-03-03 17:59:51 +01:00
Sei Lisa
7e521780d6
Two more optimizations TODO
2015-03-03 17:49:57 +01:00
Sei Lisa
0b55f6e64d
Oops, the operator is !, not -
2015-03-03 02:20:31 +01:00
Sei Lisa
05d46e9ac3
Optimize comparisons of the form int>2147483647 or int<-2147483648 and expand (>=, <=, !=) to !(<, >, ==) respectively.
2015-03-03 02:16:00 +01:00
Sei Lisa
493aed6c39
Optimize (-a)*b or a*(-b) to -(a*b), revisiting the expression.
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This obviates the need for (-a)*(-b) because it will be simplified automatically. It also enables (a+1)*b-1 to be simplified to just ~(~a*b). Still missing simplifying a*b+b to (a+1)*b, but that's more complicated.
2015-03-03 01:46:53 +01:00
Sei Lisa
01f2bba2f4
Make *-2 and *2 only work for local variables. Needed an adition to the parser.
2015-03-03 00:49:14 +01:00
Sei Lisa
d8f42a5071
Remove obsolete comment about parentheses (they are now implicit).
2015-03-03 00:47:15 +01:00
Sei Lisa
c650ad26f8
Comment changes only.
2015-03-02 23:28:14 +01:00
Sei Lisa
3b7e461d82
Convert [x] -> (list)x except in globals.
2015-02-28 22:48:11 +01:00
Sei Lisa
831296eddc
Minor shortening of name to fit in line
2015-02-28 21:46:19 +01:00
Sei Lisa
762bf1f27b
Add some FIXMEs and TODOs, remove comment that no longer makes sense.
2015-02-28 20:39:23 +01:00
Sei Lisa
e30a4ea25d
Fix addstrings option (oops).
2015-02-28 20:37:18 +01:00
Sei Lisa
8f83e2f1ab
Add "addstrings" option (disabled by default) to select whether to automatically concatenate strings during constant folding.
2015-02-28 20:01:51 +01:00
Sei Lisa
6ea01c4242
Added optimizations for most operators, and 'cornermath' option.
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Only remaining operators are < <= > >= &.
2015-02-28 18:30:04 +01:00
Sei Lisa
42ac090f03
Big bunch of expressions optimized, boolean/bitwise, and some new ideas.
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a != -1 is now optimized to ~a in conditions. a == 1, a != 1, etc. are all optimized. a||b -> a|b is done. a^0, a^-1 are optimized. a&&b is transformed to !(!a|!b), but not yet into a&b when possible.
2015-02-28 05:14:52 +01:00
Sei Lisa
1dea1bd12c
Make parentheses no longer explicit in the AST (Beta).
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The output module adds parentheses where necessary, depending on the evaluation order in the tree. Or that's the idea. Prone to bugs, let's see how it bodes.
2015-02-28 00:43:26 +01:00
Sei Lisa
59451b90e5
On second thought, parentheses are only needed for ~ because it binds tighter.
2015-02-27 20:12:17 +01:00
Sei Lisa
25cbb91b6e
Fix bug where n*3+1 was optimized as -~n*3 rather than as -~(n*3). Also merge -2 with -1 and +2 with +1.
2015-02-27 20:05:14 +01:00
Sei Lisa
2047a128fb
Add two TODO items about parameters to common functions.
2015-02-27 19:20:31 +01:00
Sei Lisa
536b1ed2f9
Fix comments that mentioned the wrong property.
2015-02-27 19:18:28 +01:00
Sei Lisa
07590ea850
Fix bug where (a * 5) + 4 was converted to a + 5 + 4.
2015-02-27 19:12:22 +01:00
Sei Lisa
6fb947fbc9
(Limitedly) apply distributive law for string and integer addition.
2015-02-12 07:47:35 +01:00
Sei Lisa
db862bb4a6
Multi-commit:
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- Fix a bunch of bugs found during the debut of the LSL calculator.
- Add infrastructure for functions to be able to produce a result or not depending on arguments. Fixes the llBase64ToInteger/llXorBase64/llXorBase64StringsCorrect cases where they are not deterministic, and allows for the addition of some extra functions whose value can be determined in some cases (e.g. llDetectedType(-1) is always 0). Added several such functions in a new module.
- Add the constant folding option to the help and the default options.
2015-02-11 05:43:13 +01:00
Sei Lisa
716be215f2
Fix double negation and constant nodes; add optimization of -~-~ chains. Fix a case of addition. Add a case of parentheses.
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(Changes were pending since Aug 19)
2014-12-13 14:16:28 +01:00
Sei Lisa
c2a30fb9ee
Simplify const + nonconst + const and nonconst + const + const.
2014-08-19 19:45:47 +02:00
Sei Lisa
c2437b33e7
Optimize [] + nonlist as (list)nonlist.
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And minor comment changes.
2014-08-17 16:31:46 +02:00
Sei Lisa
8e5166bb2e
Move the constant folding code to lslfoldconst.py.
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lsloptimizer remains as the "conductor" and option handler.
As a result, new options have been added to enable DCR and constant folding.
2014-08-13 14:19:58 +02:00
Sei Lisa
beea757a0a
Fork (add a copy of) lsloptimizer.py as lslfoldconst.py.
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This commit is just a copy, to hopefully help git track it. The changes come in the next commit.
2014-08-13 14:02:05 +02:00
