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Author SHA1 Message Date
Roberto Ierusalimschy e752d84ed8 bug: memory-allocation error when resizing a table can leave it 
in an inconsistent state.
 2017-12-13 16:35:03 -02:00
Roberto Ierusalimschy 86431a2f1c new opcodes BANDK/BORK/BXORK. (They do not use immediate operands 
because, too often, masks in bitwise operations are integers larger
than one byte.)
 2017-12-13 16:32:09 -02:00
Roberto Ierusalimschy 36cf8f3a3c Code should not change the stack level after the initialization of a 
string buffer.
 2017-12-13 10:51:42 -02:00
Roberto Ierusalimschy 725c15a4ca when shrinking stack, always shrinks the CI list. 
(Stack overflow is not corelated to CI overflow anymore.)
 2017-12-12 09:57:30 -02:00
Roberto Ierusalimschy b077b20206 back to reallocation when resizing the string table. 
(Not a good idea to explicitly allocate new memory when shrinking
something.)
 2017-12-12 09:52:35 -02:00
Roberto Ierusalimschy 3cf340f676 allows memory-allocation errors when shrinking blocks 2017-12-11 16:55:31 -02:00
Roberto Ierusalimschy 7ad20af2cf more freedom in handling memory-allocation errors (not all allocations 
automatically raise an error), which allows fixing a bug when resizing
a table.
 2017-12-11 16:53:53 -02:00
Roberto Ierusalimschy bfb88e99e9 'luaD_growstack' cannot raise any errors when 'raiseerror' is 
false (+ some comments)
 2017-12-11 10:43:40 -02:00
Roberto Ierusalimschy c5ebed7399 'luaM_shrinkvector' raises an error if it cannot shrink the block 
(several parts of Lua use array size in protos as proxies for
number of valid elements)
 2017-12-11 10:27:48 -02:00
Roberto Ierusalimschy e663a24ab0 more freedom in handling memory-allocation errors (not all allocations 
automatically raise an error), which allows fixing a bug when resizing
a table.
 2017-12-08 15:28:25 -02:00
Roberto Ierusalimschy 40f823ec90 new C instruction "rawcheckstack" (to test failing in 'lua_checkstack') 2017-12-08 13:19:13 -02:00
Roberto Ierusalimschy 7622373033 using explicit tests for allocation overflow whenever possible 2017-12-07 16:59:52 -02:00
Roberto Ierusalimschy 46bc7f2bf7 detail (comment) 2017-12-07 16:53:33 -02:00
Roberto Ierusalimschy cc01d46247 new test function 'T.allocount' to restrict number of allocations 
before a memory-allocation error
 2017-12-07 16:51:39 -02:00
Roberto Ierusalimschy 9fa1baf6de opcodes for order and shift can use several metamethods, 
so it is better to use a generic description + metamethod names
in some error messages shown without '__' prefix
 2017-12-07 13:44:10 -02:00
Roberto Ierusalimschy 49dfaf7447 avoid using one function for different tasks (malloc, free, etc.) 2017-12-06 16:36:31 -02:00
Roberto Ierusalimschy 348fa1ca56 bug: 'lua_pushcclosure' should not call the garbage collector when 
'n' is zero.
 2017-12-06 16:20:28 -02:00
Roberto Ierusalimschy ae11e37e53 bug: 'lua_pushcclosure' should not call the GC when 'n' is zero 2017-12-06 16:08:03 -02:00
Roberto Ierusalimschy c7ee7fe026 new opcodes OP_SHLI/OP_SHRI 2017-12-04 15:41:30 -02:00
Roberto Ierusalimschy 421e459684 'luaS_resize' can raise memory errors 2017-12-01 15:38:49 -02:00
Roberto Ierusalimschy 9d28b40152 rehashes string table always allocating a new array instead of 
reallocating old one. (Avoids problems if reallocation to a small
size fails.)
 2017-12-01 14:40:29 -02:00
Roberto Ierusalimschy e0bece77d6 detail 2017-12-01 13:44:51 -02:00
Roberto Ierusalimschy d0356d5f15 another value for LUAI_MAXCCALLS (must think more about that) 2017-12-01 13:08:14 -02:00
Roberto Ierusalimschy ac78b914b6 warnings from Visual Studio /W3 2017-11-30 13:37:16 -02:00
Roberto Ierusalimschy 10b8c99bbb small peephole optimizations 2017-11-30 11:29:18 -02:00
Roberto Ierusalimschy bdc751ce23 details (comments) 2017-11-30 11:16:43 -02:00
Roberto Ierusalimschy 19c6b375c3 detail (spacing) 2017-11-30 10:03:00 -02:00
Roberto Ierusalimschy 745eb41993 new opcodes OP_RETURN0/OP_RETURN1 2017-11-29 14:57:36 -02:00
Roberto Ierusalimschy c766e4103d 'luaV_execute' gets call info as extra argument (it is always 
available on call sites)
 2017-11-29 11:02:17 -02:00
Roberto Ierusalimschy 36aecd4548 order opcodes cannot use 'K' operands 2017-11-28 13:26:15 -02:00
Roberto Ierusalimschy 1a5e8c1014 conditional jumps unified in label "condjump' + new variable 'vra' 
to avoid excessive use of macro 's2v'
 2017-11-28 12:51:00 -02:00
Roberto Ierusalimschy ff5fe51044 using register 'k' for conditions in tests (we only need one bit there) 2017-11-28 10:58:18 -02:00
Roberto Ierusalimschy dfd188ba12 detail (identation of switch) 2017-11-28 09:19:07 -02:00
Roberto Ierusalimschy 093c16b67b new opcodes 'OP_LTI' and 'OP_LEI' 2017-11-27 15:44:31 -02:00
Roberto Ierusalimschy 599f1742c6 detail (typo in comments) 2017-11-23 17:29:04 -02:00
Roberto Ierusalimschy 73abfde2ef small simplifications around 'luaT_callorderTM' 2017-11-23 17:18:10 -02:00
Roberto Ierusalimschy 194a4f9710 small simplifications in 'luaD_poscall' 2017-11-23 16:29:41 -02:00
Roberto Ierusalimschy 196c87c9ce no more 'stackless' implementation; 'luaV_execute' calls itself 
recursively to execute function calls. 'unroll' continues all
executions suspended by an yield (through a long jump)
 2017-11-23 14:41:16 -02:00
Roberto Ierusalimschy 39f26b1480 more information from 'T.stacklevel' 2017-11-23 13:38:42 -02:00
Roberto Ierusalimschy 3c230cc825 using 'A' for register instead of 'B' in relational opcodes 
('R(A)' is already created by default for all instructions.)
 2017-11-22 17:15:44 -02:00
Roberto Ierusalimschy 41f2936d8f new opcode 'OP_EQI' for equality with immediate numbers 2017-11-22 16:41:20 -02:00
Roberto Ierusalimschy 14c3aa12b5 more direct implementation for tail calls. 2017-11-21 12:18:03 -02:00
Roberto Ierusalimschy f3ca52bfa9 in order comparison opcodes, fast track for floats too 2017-11-20 10:57:39 -02:00
Roberto Ierusalimschy c47111bd4e 'io.read' accepts multiple formats in a single string argument 2017-11-16 14:28:36 -02:00
Roberto Ierusalimschy e4e5aa85a2 detail ('signal' -> 'sign' in comments) 2017-11-16 11:19:06 -02:00
Roberto Ierusalimschy 4c0e36a46e new instruction 'OP_EQK' (for equality with constants) 2017-11-16 10:59:14 -02:00
Roberto Ierusalimschy 5440b42f43 using 'trap' to stop 'luaV_execute' when necessary (tracing and 
to update its copy of 'base' when the stack is reallocated)
 2017-11-13 13:36:52 -02:00
Roberto Ierusalimschy 7d4828cc9f avoid accessing wrong union field 2017-11-13 10:26:30 -02:00
Roberto Ierusalimschy 62f3b7c472 detail 2017-11-13 10:20:51 -02:00
Roberto Ierusalimschy fb9be62f79 includes 'stdio.h' to allow prints when testing 2017-11-13 10:19:35 -02:00
Roberto Ierusalimschy 7c0175bc83 removed unused variable 'islocked' 2017-11-09 11:31:29 -02:00
Roberto Ierusalimschy 32fef60743 detail ('Protect' defined as an expression) 2017-11-08 17:01:02 -02:00
Roberto Ierusalimschy 26679ea35b new function 'luaV_flttointeger' to convert floats to integers (without 
string coercions) + string operands to bitwise operations handled
by string metamethods
 2017-11-08 12:50:23 -02:00
Roberto Ierusalimschy c3e5946fb2 new format for JUMP instructions (to allow larger offsets) 2017-11-07 15:20:42 -02:00
Roberto Ierusalimschy ad0704e40c back to 'CallInfo' (no gains with its removal) 2017-11-07 11:25:26 -02:00
Roberto Ierusalimschy 5a3f26f855 fitting a StackValue structure into 32 bytes (for 64-bit machines) 2017-11-06 15:34:06 -02:00
Roberto Ierusalimschy 93fd67b793 no more 'CallInfo' structure 2017-11-04 10:57:02 -02:00
Roberto Ierusalimschy 6bb3e40a8d 'lua_Debug' not using 'CallInfo' 2017-11-03 18:41:05 -02:00
Roberto Ierusalimschy 7612f7735d removing uses of 'CallInfo' 2017-11-03 17:33:22 -02:00
Roberto Ierusalimschy 472c560705 no more useful fields in CallInfo 2017-11-03 15:22:54 -02:00
Roberto Ierusalimschy 54eb35a8aa more fields moved out of 'CallInfo' 2017-11-03 10:12:30 -02:00
Roberto Ierusalimschy ba36180fd7 new API for 'lua_resume' + cleaning the uses of the 'extra' field in 
'CallInfo'
 2017-11-02 09:28:56 -02:00
Roberto Ierusalimschy b9e76be8a6 using 'L->func' when possible 2017-11-01 16:20:48 -02:00
Roberto Ierusalimschy c5482468fd baby steps to remove 'CallInfo': keeping 'L->func' correct 2017-10-31 15:54:35 -02:00
Roberto Ierusalimschy ad5dcdcf0f detail: in 'isinstack', check against the whole stack instead 
of against the stack frame
 2017-10-31 15:14:02 -02:00
Roberto Ierusalimschy de9128d09d do not mess up the debt when the collector is not running 2017-10-31 13:29:28 -02:00
Roberto Ierusalimschy 1d8920dd7f some cleaning in GC parameters 2017-10-11 09:38:45 -03:00
Roberto Ierusalimschy 911f1e3e7f raw operation should not convert strings to numbers 2017-10-10 17:05:40 -03:00
Roberto Ierusalimschy a1ef58b3a5 eplicit 1-bit opcode operand 'k' 2017-10-04 18:56:32 -03:00
Roberto Ierusalimschy 283e7455ff detail 2017-10-04 18:53:03 -03:00
Roberto Ierusalimschy 8fbe9e3470 new opcodes with immediate integer operand for all arithmetic operations 2017-10-04 12:49:24 -03:00
Roberto Ierusalimschy 9ed9f40f1e avoid warning about 'const' 2017-10-04 12:49:05 -03:00
Roberto Ierusalimschy 940472c75c opcode size increased to 7 bits 2017-10-02 19:51:32 -03:00
Roberto Ierusalimschy f3b3d9b5c2 string constants (Kstr) must fit into 'B' register 2017-10-02 19:50:57 -03:00
Roberto Ierusalimschy 7f9a32ad85 new function 'printcode' 2017-10-01 16:17:51 -03:00
Roberto Ierusalimschy bc1b0733b8 avoid the use of bit 'Bk' ('B' will lose this bit soon) 2017-10-01 16:13:43 -03:00
Roberto Ierusalimschy 722bdbe17d no more 'getBMode'-'getCMode' (imprecise + we will need more space 
for op mode) + better control of op modes
 2017-09-28 13:53:29 -03:00
Roberto Ierusalimschy 1b10033583 new function 'luaT_trybiniTM' 
to handle tag methods for instructions with immediate integer arguments
 2017-09-27 15:59:08 -03:00
Roberto Ierusalimschy 00e728af88 binary operators use R instead of RK 
faster + nobody uses RK(B), so B can be smaller (freeing one bit
for more opcodes, soon)
 2017-09-26 15:14:45 -03:00
Roberto Ierusalimschy 13256a4173 detail 
put explicit all cases for a switch of an enumeration
 2017-09-26 14:10:49 -03:00
Roberto Ierusalimschy abb17cf19b new opcode OP_LOADF (load immediate float) 2017-09-19 15:38:14 -03:00
Roberto Ierusalimschy e0c0e2ee14 comments (documentation about instruction formats) 2017-09-18 13:07:54 -03:00
Roberto Ierusalimschy 022e4427cf detail (keep OP_LOADK and OP_LOADKX together) 2017-09-15 11:19:06 -03:00
Roberto Ierusalimschy 80d9b09f35 jumps do not close upvalues (to be faster and simpler); 
explicit instruction to close upvalues; command 'break' not
handled like a 'goto' (to optimize removal of uneeded 'close'
instructions)
 2017-09-13 16:50:08 -03:00
Roberto Ierusalimschy 029d269f4d bug: dead keys with nil values can stay in weak tables 2017-08-31 13:14:41 -03:00
Roberto Ierusalimschy ac65bab25f jumps in 'for' loops don't need to be signed 2017-08-14 15:33:14 -03:00
Roberto Ierusalimschy f185c0132e comment in code fragment 2017-08-12 10:12:42 -03:00
Roberto Ierusalimschy b77f792b23 comment 2017-08-12 10:12:21 -03:00
Roberto Ierusalimschy 4053eae9eb bug: Lua does not check GC when creating error messages 2017-07-27 10:55:38 -03:00
Roberto Ierusalimschy 6d998055c8 no more reference 'memerrmsg' + new reference to "n" 
(both can be retrieved by 'luaS_newliteral' without creating anything,
because they are fixed, but "n" deserves fast access while 'memerrmsg'
does not)
 2017-07-27 10:50:16 -03:00
Roberto Ierusalimschy 11769b203f new version (5.4) 2017-07-27 10:36:54 -03:00
Roberto Ierusalimschy b1daa069ba bug: Lua does not check GC when creating error messages 2017-07-10 14:35:12 -03:00
Roberto Ierusalimschy 4dff277255 coercion string->number in arithmetic operations moved to string 
library
 2017-07-07 13:34:32 -03:00
Roberto Ierusalimschy 07db10813c 'OP_VARARG' has the vararg parameter as an operand 2017-06-29 12:38:41 -03:00
Roberto Ierusalimschy f96497397a new type 'StackValue' for stack elements 
(we may want to put extra info there in the future)
 2017-06-29 12:06:44 -03:00
Roberto Ierusalimschy 5a1c8d8ef3 new constant 'LUA_GNAME' for the name of the global table "_G" 2017-06-27 15:32:49 -03:00
Roberto Ierusalimschy 124bfd2081 dumping ints and size_ts compacted 2017-06-27 11:21:12 -03:00
Roberto Ierusalimschy b42430fd3a 'lineinfo' in prototypes saved as differences instead of absolute 
values, so that the array can use bytes instead of ints, reducing
its size. (A new array 'abslineinfo' is used when line differences
do not fit in a byte.)
 2017-06-27 08:35:31 -03:00
Roberto Ierusalimschy 60a7492d24 new type 'ls_byte' for signed bytes 2017-06-27 08:35:01 -03:00
Roberto Ierusalimschy 73ec04fcf3 no more 'DEADKEY'. Table traversals do not need to consider dead keys; 
if the key is dead, it cannot be given to 'next'. Instead, we now
use a 'table' tag without the collectable bit, which makes it
a unique tag good enough to reserve space.
 2017-06-12 11:21:44 -03:00