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323 Commits

Author SHA1 Message Date
Roberto Ierusalimschy 82129b9266 use macro 'hasjumps' to test whether expression has jumps... 2015-10-26 12:27:47 -02:00
Roberto Ierusalimschy a1935b9cba error message ("too complex" -> "too many registers") + MAXREGS 
changed to 255 (no reason not to use maximum allowed)
 2015-04-29 15:24:11 -03:00
Roberto Ierusalimschy e723c75c02 details (avoid 'lint' warnings) 2015-03-28 16:14:47 -03:00
Roberto Ierusalimschy 8e5290d81e all "divisions" (div,idiv,mod) by zero are not folded, to avoid 
problems during compilation + does not fold zero results, as they
can collapse with -0.0 and the ANSI test to distinguish both needs
a division by zero (which we are trying to avoid) + removed macro
'luai_numinvalidop' (as its main use case were divisions by zero)
 2014-12-29 14:49:25 -02:00
Roberto Ierusalimschy 2b83711fba new macro 'nvalue' (to convert an object to a float when we know 
object is a number)
 2014-12-19 11:36:32 -02:00
Roberto Ierusalimschy bf163ea7f0 bug ('#3' causes seg. fault in 5.3-beta) + comments + 'codearith' -> 
'codeexpval' (confusion about what operations function accept was
one of the reasons for the bug)
 2014-11-24 12:59:22 -02:00
Roberto Ierusalimschy 5fbd40dbe5 'x//y' extended to floats 2014-11-21 10:15:57 -02:00
Roberto Ierusalimschy 28fdbcf393 added include for 'lprefix.h', for stuff that must be added before 
any other header file
 2014-11-02 17:19:04 -02:00
Roberto Ierusalimschy 4542fb9f78 comments (a few extra quotes around identifiers) 2014-10-30 16:53:28 -02:00
Roberto Ierusalimschy 4b526045fa comment 2014-10-28 15:27:41 -02:00
Roberto Ierusalimschy 491103708e 'MAXSTACK' -> 'MAXREGS' and moved to 'lcode.c' (there is no reason 
to change that constant...)
 2014-10-27 14:29:58 -02:00
Roberto Ierusalimschy bdf566a8a3 `name' in comments changed to 'name' 2014-10-25 09:50:46 -02:00
Roberto Ierusalimschy 42ff788e53 comments 2014-05-08 15:58:46 -03:00
Roberto Ierusalimschy ffa43df3cd 'setnvalue' -> 'setfltvalue' (for consitency with 'fltvalue') 2014-04-29 15:14:16 -03:00
Roberto Ierusalimschy e98ba351ce n^-m gives float result (instead of error) 2014-04-27 11:41:11 -03:00
Roberto Ierusalimschy f61ceee708 LUAI_FUNC is being used only in header files 2014-04-02 13:44:42 -03:00
Roberto Ierusalimschy 607be77ec8 some details to avoid warnings 2014-04-01 11:39:55 -03:00
Roberto Ierusalimschy da4811238a details (typos in comments) 2014-03-21 10:52:33 -03:00
Roberto Ierusalimschy 2aff75f58e small bug (from revision 2.80): LUA_OP* constants are not from 
enumeration 'Opcode' (they are integers)
 2014-03-09 16:21:34 -03:00
Roberto Ierusalimschy cd12410195 new macro 'cast_void' 2014-03-07 13:19:00 -03:00
Roberto Ierusalimschy 5ff1c18a71 back with 'L' for macros 'luai_num*', but now with a new macro 
'luai_numinvalidop' to protect constant folding
 2014-03-06 13:15:18 -03:00
Roberto Ierusalimschy 99ac4a260f 'constfolding' passes a proper Lua state to 'luaO_arith' 2014-03-06 10:58:28 -03:00
Roberto Ierusalimschy fa7e77fd38 detail ('codearith' uses 'LUA_OP*' constants instead of 'OP_*') 2014-03-06 10:39:05 -03:00
Roberto Ierusalimschy 19ad78d713 C++ needs casts for arithmetic with enums 2014-02-06 17:55:55 -02:00
Roberto Ierusalimschy 86dd8bf3f5 no more 'L' in macros "luai_num*" (several places that use those macros 
cannot throw errors anyway...)
 2014-01-27 11:34:32 -02:00
Roberto Ierusalimschy 1ea2d20f74 first implementation of '<<', '>>', and '~' (bitwise not) 2013-12-30 18:47:58 -02:00
Roberto Ierusalimschy f5133aa1a5 small change in handling of unary operations 2013-12-18 16:44:42 -02:00
Roberto Ierusalimschy c0edab0f6d first implementation of bitwise operators '&' (band), '|' (bor), 
and '~' (bxor)
 2013-12-18 12:12:03 -02:00
Roberto Ierusalimschy a948054a19 new order for binary operations (grouping them by type of result) 2013-12-16 17:06:52 -02:00
Roberto Ierusalimschy a8f8c7fd80 integer exponentiation with negative exponent is invalid 2013-12-16 12:30:22 -02:00
Roberto Ierusalimschy 8ef9e8460e bug (GC can collect long identifier during parser) + change (using 
a single constant table for all functions in a chunk)
 2013-08-30 13:01:37 -03:00
Roberto Ierusalimschy 483c2ccd0f avoid using raw representation of numbers for hashing, as number may 
not use all its space (e.g., long double can have sizeof=12 but
use only 10 bytes)
 2013-06-25 15:57:18 -03:00
Roberto Ierusalimschy f45177f2d3 In the table that hashes constants, use a light userdata as keys 
to integer values to avoid collisions with floats with the same
numerical value
 2013-06-20 14:37:31 -03:00
Roberto Ierusalimschy 1f2b82bf25 correct way to avoid compile-time errors in integer divisions 2013-05-06 14:22:16 -03:00
Roberto Ierusalimschy 67532d5a10 constant folding and API arithmetic with integers 2013-05-02 09:37:24 -03:00
Roberto Ierusalimschy 00744a2729 'luaO_arith' -> 'luaO_numarith' 2013-04-29 13:57:48 -03:00
Roberto Ierusalimschy a2f5c28a80 new operation '//' (integer division) 2013-04-26 10:08:29 -03:00
Roberto Ierusalimschy 5951c79ae1 default increment for 'for' loop is an integer (1, not 1.0) 2013-04-25 16:35:19 -03:00
Roberto Ierusalimschy 1294b09d8e first implementation of literal integers (no constant folding yet) 2013-04-16 15:46:28 -03:00
Roberto Ierusalimschy 7a543cfae6 2013-04-15 12:43:34 -03:00
Roberto Ierusalimschy a3e1c40d6d remove of unecessary luaD_checkstack. (In some cases, C should 
ensure stack space; in others, Lua can use the extra slots for
temporary values.)
 2012-08-16 14:34:28 -03:00
Roberto Ierusalimschy 53480f1163 details (remove of some extra spaces) 2012-08-14 15:12:34 -03:00
Roberto Ierusalimschy ca458f1f52 'luaK_goiffalse' exported 2011-08-30 13:26:41 -03:00
Roberto Ierusalimschy 51471ba748 comments about use of 'luaH_set' 2011-08-15 16:41:58 -03:00
Roberto Ierusalimschy 5ab6d36d99 no more field 'L' in 'FuncState' 2011-07-27 15:07:37 -03:00
Roberto Ierusalimschy 32a12e2f3f detail (cleaned whitespaces at end of lines) 2011-07-15 09:50:29 -03:00
Roberto Ierusalimschy 821bd7025e more uniform names for 'equalobj'-related functions 2011-05-31 15:27:56 -03:00
Roberto Ierusalimschy 9b7dddad7d no need for two different implementations for equality (one raw and 
one with metamethods)
 2011-05-31 15:24:36 -03:00
Roberto Ierusalimschy d120ec29ca bug in OP_SELF when method name goes to a register 2011-04-28 11:00:11 -03:00
Roberto Ierusalimschy 4758113043 change in opcode OP_LOADNIL: B is used as a counter instead of a 
register. (Avoids an assignment to R(B), not present in any other
instruction.)
 2011-04-19 13:22:13 -03:00
Roberto Ierusalimschy 427ee519db new instruction OP_LOADKX (to replace OP_LOADK with extra argument) 2011-04-07 15:14:12 -03:00
Roberto Ierusalimschy dd547c55c8 new scheme to close upvalues in 'break'; jump instructions may 
do the close, avoiding the need for a OP_CLOSE instruction
 2011-02-01 16:03:10 -02:00
Roberto Ierusalimschy 026a7e92be bug in some short-circuit optimizations 2011-01-31 12:28:41 -02:00
Roberto Ierusalimschy 81dd13f4c6 new way to distinguish between indexing tables in registers and 
tables in upvalues (+ fixed small bug when checking conflicts in
multiple assignments)
 2010-07-07 13:27:29 -03:00
Roberto Ierusalimschy 6a02bbe1e2 better organization for fields in struct 'expdesc' 2010-07-02 17:42:40 -03:00
Roberto Ierusalimschy a71c5f6f53 typo in comments 2010-06-30 11:11:17 -03:00
Roberto Ierusalimschy c066ac10a9 better line numbers for function calls and unary/binary operators + 
null statement + no more "ambiguous syntax" restriction
 2010-04-17 09:46:32 -03:00
Roberto Ierusalimschy 25c557ec63 first version of _ENV; no more global variables 2010-03-12 16:14:06 -03:00
Roberto Ierusalimschy 0fe2576a39 new instructions to optimize indexing on upvalues 2010-02-26 17:40:29 -03:00
Roberto Ierusalimschy cef96b73e1 added casts from int to enumerations to follow C++ rules 2010-01-11 15:38:30 -02:00
Roberto Ierusalimschy fcc46467fa limit of constants per function changed to 2^26 using extra arguments 
to opcodes LOADK, GETGLOBAL, and SETGLOBAL
 2009-09-23 17:33:05 -03:00
Roberto Ierusalimschy 1b4480003b "stange numbers" (-0 and NaN) also go to the constant table (as 
strings with their binary representation). Therefore, constant
folding may produce these results.
 2009-08-10 12:31:44 -03:00
Roberto Ierusalimschy d7872dcf91 small optimization (reorder of BinOpr enum to unify some cases 
in switches)
 2009-06-18 13:35:05 -03:00
Roberto Ierusalimschy 96fa34ec32 constant folding uses 'luaO_arith' to perform basic operations 2009-06-17 14:49:09 -03:00
Roberto Ierusalimschy 3db5f60547 BUG: "(((1 or false) and true) or false)" gives wrong result 2009-06-15 10:52:08 -03:00
Roberto Ierusalimschy 2598138ece new function 'luaK_codek' (detail) 2009-06-10 13:52:03 -03:00
Roberto Ierusalimschy 4d7469b610 avoid constant folding for -0 (to avoid it colapsing to 0) 2008-04-07 15:41:47 -03:00
Roberto Ierusalimschy a4d3080fe3 SETLIST extra argument now is an "instruction" (OP_EXTRAARG) 2008-04-02 14:38:54 -03:00
Roberto Ierusalimschy 81fc3c4f45 bug: code generated for "-nil", "-true", and "-false" is wrong 2007-05-04 15:41:49 -03:00
Roberto Ierusalimschy 5f4f0d4a63 no more optimization to avoid LOADNIL at function start 2007-03-27 11:11:38 -03:00
Roberto Ierusalimschy 3b19bd4d57 bug: wrong code when constant is coded after it should be 2007-03-09 15:50:56 -03:00
Roberto Ierusalimschy 742b8be0c1 detail 2006-10-10 14:39:00 -03:00
Roberto Ierusalimschy 3c8865cf66 detail 2006-09-22 17:24:38 -03:00
Roberto Ierusalimschy bd869c7b31 details 2006-09-14 15:42:28 -03:00
Roberto Ierusalimschy d5a23dde90 little better error messages for internal arrays overflows 2006-09-14 09:59:06 -03:00
Roberto Ierusalimschy dfe2f1eeff macros luai_num* take a state L (when available) as argument, to allow 
them to generate errors (and other facilities)
 2006-08-07 16:14:30 -03:00
Roberto Ierusalimschy ee41bc03ab details 2006-06-22 13:12:59 -03:00
Roberto Ierusalimschy 1ae0b6c0bf BUG: should copy the union, not (some of) its fields 2006-03-21 16:28:49 -03:00
Roberto Ierusalimschy c505f341d6 small changes in casts 2005-12-22 14:19:56 -02:00
Roberto Ierusalimschy db724e14e0 new macro luai_numisnan 2005-11-25 11:29:32 -02:00
Roberto Ierusalimschy 521a452f28 'mod' may also raise an error when applied to zero 2005-11-16 09:55:27 -02:00
Roberto Ierusalimschy e43e95553f more privacy 2005-11-08 17:44:31 -02:00
Roberto Ierusalimschy 8e48ebb638 no more L in numer-operator macros (some functions that use those macros 
have no access to L)
 2005-10-24 15:37:52 -02:00
Roberto Ierusalimschy e9b06c506f small optimization 2005-10-13 09:21:51 -03:00
Roberto Ierusalimschy e251e84e0f constant folding optimizations 2005-10-09 17:05:48 -03:00
Roberto Ierusalimschy 5dbb870815 small optimization for local declarations without initializations 2005-09-30 11:23:33 -03:00
Roberto Ierusalimschy 3b19af44b0 new method to handle tests without values (negative values) 2005-08-29 17:49:21 -03:00
Roberto Ierusalimschy 074352911f new coding for while and repeat (with new scoping for repeat) 2005-08-17 15:32:09 -03:00
Roberto Ierusalimschy 746a1d612b small bug (type error) 2005-06-07 15:53:45 -03:00
Roberto Ierusalimschy f21e9c172f details 2005-05-20 12:53:42 -03:00
Roberto Ierusalimschy 04bbd01171 new operation *t (for size of t) (may yet be removed...) 2005-03-16 13:59:21 -03:00
Roberto Ierusalimschy 370d31a559 `luac´ -> `luai' (to avoid confusion with other luac stuff) 2005-03-09 13:28:07 -03:00
Roberto Ierusalimschy f8df21bd20 `luaconf.h´ exports all its definitions always (so all of them 
must have a lua/LUA prefix).
 2005-03-08 17:10:05 -03:00
Roberto Ierusalimschy 8ddfe3df29 macros for all arithmetic operations over lua_Numbers 2005-01-10 16:17:39 -02:00
Roberto Ierusalimschy c78940f21a static names do not need `luaX_' prefix 2004-12-03 18:50:25 -02:00
Roberto Ierusalimschy 5ee87acd6b small optimization for boolean constants + new format for SETLIST opcode 2004-10-04 16:01:53 -03:00
Roberto Ierusalimschy 4b12eff801 small correction (less conservative write barrier for tables) 2004-08-24 17:09:11 -03:00
Roberto Ierusalimschy 31e48f26ed small bug 2004-07-16 10:30:53 -03:00
Roberto Ierusalimschy 02a2c01ccd new way to code RK values 2004-06-29 15:49:02 -03:00
Roberto Ierusalimschy 616438fe9a new way to use `vararg' parameters (with `...') 2004-05-31 15:51:50 -03:00
Roberto Ierusalimschy b4cd38ba6c new scheme for configuration through `luaconf.h' 2004-04-30 17:13:38 -03:00
Roberto Ierusalimschy 47fc57a252 `TObject' renamed to `TValue' + other name changes and better assertions 
for incremental garbage collection
 2003-12-10 10:13:36 -02:00
Roberto Ierusalimschy df429f163a First version of incremental GC 2003-12-09 14:56:11 -02:00
Roberto Ierusalimschy 8bc6c68021 details 2003-11-19 17:59:18 -02:00
Roberto Ierusalimschy 8332d5c8a5 parser fully reentrant(!) 2003-08-27 18:01:44 -03:00
Roberto Ierusalimschy c116dcb92b better information about instruction behavior (use of arguments) 2003-05-14 09:09:12 -03:00
Roberto Ierusalimschy 0d88545b82 warnings from several compilers (mainly typecasts when lua_Number is float) 2003-04-03 10:35:34 -03:00
Roberto Ierusalimschy e1a424e8a3 avoid the identifier `index' (clashes with BSD `index' function) 2003-02-27 09:33:07 -03:00
Roberto Ierusalimschy 73517e86b0 OP_TFORLOOP uses extra stack space 2002-12-11 10:34:22 -02:00
Roberto Ierusalimschy 27c6b4d422 each .c file defines its own name 2002-12-04 15:38:31 -02:00
Roberto Ierusalimschy 41fd639cab documentation for write barriers 2002-11-14 14:15:53 -02:00
Roberto Ierusalimschy c196348717 in case of memory allocation errors, sizecode and sizelineinfo can 
be different
 2002-10-16 17:40:58 -03:00
Roberto Ierusalimschy fbc23d0245 details 2002-08-21 15:56:33 -03:00
Roberto Ierusalimschy 6c283b2f4f new simetric format for ABC instructions, to avoid exchanging operands 
for `commutative' operators
 2002-08-20 17:03:05 -03:00
Roberto Ierusalimschy 5037196f6f new macros `ttis*' 2002-08-05 11:50:39 -03:00
Roberto Ierusalimschy 864c96f36c new fallback for equality `__eq' 2002-06-13 10:39:55 -03:00
Roberto Ierusalimschy eeab473fc8 new fallback __le (less equal), for partial order 2002-06-12 11:56:22 -03:00
Roberto Ierusalimschy cfff013586 detail 2002-06-03 14:47:18 -03:00
Roberto Ierusalimschy 46c471d7e9 new `__newindex' eventfield 2002-05-27 17:35:40 -03:00
Roberto Ierusalimschy 1c328a191a no more `global' declarations 2002-05-14 14:52:22 -03:00
Roberto Ierusalimschy b55fded18c details about jump optimization 2002-05-13 10:07:48 -03:00
Roberto Ierusalimschy 2dadc81822 cleaner implementation of code generation for jumps 2002-05-10 16:22:11 -03:00
Roberto Ierusalimschy b487975344 optimization for `while' (first version) 2002-05-10 14:02:32 -03:00
Roberto Ierusalimschy 78b40bf57d `skip' instructions must be followed by a jump 2002-05-09 11:14:34 -03:00
Roberto Ierusalimschy dea6b6da94 new function `lua_vpushstr' to replace uses of `sprintf' 2002-05-07 14:36:56 -03:00
Roberto Ierusalimschy 0dbf0c5953 new format for test intructions (handle NaN correctly) 2002-05-06 12:51:41 -03:00
Roberto Ierusalimschy 9b38a696d5 avoid names that differ only in capitalization 2002-04-24 17:07:46 -03:00
Roberto Ierusalimschy 3ee1efa7b2 some simplifications 2002-04-22 11:37:09 -03:00
Roberto Ierusalimschy f1f271ae76 details 2002-04-10 15:05:08 -03:00
Roberto Ierusalimschy 13ab5a6bb1 details 2002-04-02 17:43:08 -03:00
Roberto Ierusalimschy 801aaf37b1 simpler implementation for line information 2002-03-25 14:47:14 -03:00
Roberto Ierusalimschy 2626708b72 details 2002-03-21 17:31:43 -03:00
Roberto Ierusalimschy bd8b9c94b3 generic for (with any number of control variables) 2002-03-08 16:10:32 -03:00
Roberto Ierusalimschy 8a1a512c64 lu_byte is enough for those fields (maxstack < 256) 2002-03-05 09:42:47 -03:00
Roberto Ierusalimschy 38b0e6128d simpler implementation for `for' loops 2002-02-05 20:39:12 -02:00
Roberto Ierusalimschy 74907fb71e OP_LOADINT can be done by OP_LOADK 2002-01-25 19:50:39 -02:00
Roberto Ierusalimschy b38e594ed7 small improvements 2002-01-18 15:39:40 -02:00
Roberto Ierusalimschy 7ab7703b53 cleaner semantics for test instructions (skips) 2002-01-16 20:03:57 -02:00
Roberto Ierusalimschy f083812c02 first implementation of coroutines 2002-01-09 20:02:47 -02:00
Roberto Ierusalimschy 9aff171f3b new type `boolean' 2001-12-11 20:48:44 -02:00
Roberto Ierusalimschy 72659a0605 no more explicit support for wide-chars; too much troble... 2001-11-28 18:13:13 -02:00
Roberto Ierusalimschy abdbe883a8 first implementation of unrestricted static scoping 2001-09-07 14:39:10 -03:00
Roberto Ierusalimschy e1d072571e better syntax for type casts 2001-08-31 16:46:07 -03:00
Roberto Ierusalimschy 8c8ad5f3ff better locality of assignment of table values 2001-08-30 17:56:43 -03:00
Roberto Ierusalimschy c3d72096c4 use a table to find (and reuse) constants when parsing 2001-08-27 12:16:28 -03:00
Roberto Ierusalimschy 95988676d8 small bug when creating AsBc instructions in 16-bit machines 2001-07-24 14:19:07 -03:00
Roberto Ierusalimschy a598804a04 small bug in luaK_self (side effects) 2001-07-17 11:30:44 -03:00
Roberto Ierusalimschy 8e586c13fc cleaner way to ensure alignment for strings and userdata 2001-06-15 17:36:57 -03:00
Roberto Ierusalimschy 89c301d180 `(exp)' adjusts exp to 1 result 2001-06-12 11:36:48 -03:00
Roberto Ierusalimschy 0a1b1acdd3 details about opcode parameters 2001-06-11 11:56:42 -03:00