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2022-11-23'l_mem' renamed to 'l_obj' to count objectsRoberto Ierusalimschy6-49/+51
2022-11-23First version of GC counting objects for controlRoberto Ierusalimschy9-156/+162
Still needs to review generational mode.
2022-11-23Stop GC while building initial stateRoberto Ierusalimschy1-1/+3
2022-11-08Removed unused field 'UpVal.tbc'Roberto Ierusalimschy2-4/+2
2022-11-03Added a counter of the total number of existing objectsRoberto Ierusalimschy3-0/+5
It may simplify the control of the garbage collector.
2022-11-01Threads are created like other objectsRoberto Ierusalimschy3-12/+16
Using a version of 'luaC_newobj' that allows offsets (extra space before the object itself).
2022-11-01Tables have a 'lastfree' information only when neededRoberto Ierusalimschy7-24/+84
Only tables with some minimum number of entries in their hash part have a 'lastfree' field, kept in a header before the node vector.
2022-10-31Stack reallocation done with a single reallocRoberto Ierusalimschy2-22/+52
To avoid the need of both the old and the new stack addresses valid at the same time, to correct the pointers to the stack, these pointers are changed to offsets before the reallocation and then changed back to pointers after the reallocation.
2022-10-29Stack indices changed to union'sRoberto Ierusalimschy19-370/+384
That will allow to change pointers to offsets while reallocating the stack.
2022-10-26DetailsRoberto Ierusalimschy1-2/+7
Added comments in the makefile about other useful '-fsanitize' options.
2022-10-25Bug: stack overflow with nesting of coroutine.closeRoberto Ierusalimschy6-6/+38
2022-10-21Removed test function 'luaH_isdummy'Roberto Ierusalimschy2-3/+0
It was not being used anywhere.
2022-10-19Option '-l g=mod' added to the manualRoberto Ierusalimschy1-11/+12
Plus some other improvements in the manual.
2022-10-19DetailsRoberto Ierusalimschy2-7/+7
Some cast operations rewritten to use respective macros.
2022-10-19Portability issue in a test for 'string.format'Roberto Ierusalimschy1-2/+7
2022-09-23Negation in constant folding of '>>' may overflowRoberto Ierusalimschy4-4/+19
2022-09-23Small simplification in overflow check in 'getfield'Roberto Ierusalimschy2-3/+10
Subtracting a small non-negative int from a non-negative int cannot overflow, and adding a non-negative int to INT_MIN cannot overflow.
2022-09-23Bug: 'utf8.codes' accepts spurious continuation bytesRoberto Ierusalimschy2-12/+27
2022-09-16New test for table rehashRoberto Ierusalimschy1-9/+29
2022-09-08Note in the manual about using '...' as an expressionRoberto Ierusalimschy1-5/+16
2022-09-07Corrected error message in 'table.remove'Roberto Ierusalimschy1-1/+1
2022-09-06Changed the growth rate of string buffersRoberto Ierusalimschy2-6/+7
The growth rate of string buffers was reduced from 2 to 1.5 (3/2). As string buffers start larger (256~1024 bytes), they don't need to grow that fast. Moreover, a lower rate allows multiplicative growth up to larger sizes (3/2 of the maximum). (After that, the growth becomes linear, which is mostly useless.)
2022-08-24Bug: 'break' may not properly close variable in a 'for' loopRoberto Ierusalimschy2-8/+28
Function 'leaveblock' was generating "break" label before removing variables from the closing block. If 'createlabel' created a 'close' instruction (which it did when matching a goto/break that exited the scope of an upvalue), that instruction would use the wrong level.
2022-08-23Simpler handling of Byte Order Mark (BOM)Roberto Ierusalimschy2-26/+56
2022-08-23Bug: set correct pause when (re)entering gen. collection.Roberto Ierusalimschy1-32/+31
2022-08-19Better documentation for 'multires' expressionsRoberto Ierusalimschy3-75/+120
Manual has a new section explaining multires expressions, lists of expressions, and adjustments. This commit also corrects some comments in the code.
2022-05-26More checks and documentation for uses of EXTRA_STACKRoberto Ierusalimschy5-13/+47
2022-05-25Bug: 'lua_settop' may use an invalid pointer to stackRoberto Ierusalimschy5-12/+34
2022-05-23'luaV_concat' can use invalidated pointer to stackRoberto Ierusalimschy1-3/+3
Bug introduced in commit 42d40581.
2022-05-23'lua_checkstack' doesn't need to check stack overflowRoberto Ierusalimschy5-26/+17
'luaD_growstack' already checks that. This commit also fixes an internal bug in 'luaD_growstack': a large 'n' could cause an arithmetic overflow when computing 'needed'.
2022-05-20Save stack space while handling errorsRoberto Ierusalimschy2-3/+8
Because error handling (luaG_errormsg) uses slots from EXTRA_STACK, and some errors can recur (e.g., string overflow while creating an error message in 'luaG_runerror', or a C-stack overflow before calling the message handler), the code should use stack slots with parsimony. This commit fixes the bug "Lua-stack overflow when C stack overflows while handling an error".
2022-05-10Details (identation and typos)Roberto Ierusalimschy2-3/+4
2022-05-06Factoring out common parts of 'codearith' and 'codebitwise'Roberto Ierusalimschy1-25/+33
2022-04-25Bug: Wrong code generation in bitwise operationsRoberto Ierusalimschy3-6/+42
2022-04-07New release number (5.4.5)Roberto Ierusalimschy1-2/+2
2022-04-01DetailsRoberto Ierusalimschy4-6/+17
Comments + manual + identation + asserts about stack limits that were not allowing the use of the full stack
2022-02-18Avoid computing invalid addressesRoberto Ierusalimschy1-32/+89
luaV_execute should compute 'ra' only when the instruction uses it. Computing an illegal address is undefined behavior even if the address is never dereferenced.
2022-02-15Bug: Lua can generate wrong code when _ENV is <const>Roberto Ierusalimschy2-0/+11
2022-02-07Bug: lua.c assumes that argv has at least one elementRoberto Ierusalimschy1-12/+23
2022-01-13Explanation of borders in the manualv5.4.4Roberto Ierusalimschy1-10/+12
The explanation includes the limit case of maxinteger being a border. It also avoids the term "natural", which might include large floats with natural values.
2022-01-03DetailRoberto Ierusalimschy3-8/+8
Warnings with clang when using long double for Lua floats.
2022-01-02New year (2022)Roberto Ierusalimschy2-3/+3
2021-12-22Bug: finalizer calling exit can corrupt finalization orderRoberto Ierusalimschy3-5/+34
'os.exit' can call lua_close again, separating new finalizers created after all previous finalizers were already separated.
2021-12-21DetailsRoberto Ierusalimschy2-2/+2
correction in macro for hard tests + type in comment
2021-12-15Bug: finalizers can be called with an invalid stackRoberto Ierusalimschy1-1/+1
The call to 'checkstackGC' can run finalizers, which will find an inconsistent CallInfo, as 'ci' is half updated at the point of call.
2021-12-14Fix debug information about finalizersRoberto Ierusalimschy5-27/+35
The flag CIST_FIN does not mark a finalizer, but the function that was running when the finalizer was called. (So, the function did not call the finalizer, but it looks that way in the stack.)
2021-12-13Bug: GC is not reentrantRoberto Ierusalimschy9-27/+57
As the GC is not reentrant, finalizers should not be able to invoke it.
2021-12-10Bug: Lua stack still active when closing a stateRoberto Ierusalimschy1-0/+1
2021-11-25Main 'mainposition' replaced by 'mainpositionTV'Roberto Ierusalimschy1-19/+16
Handle values in table keys as the special cases they are, and not the other way around.
2021-11-25Wrong assert in 'collectvalidlines'Roberto Ierusalimschy2-2/+2
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