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Roberto Ierusalimschy b291008cc2 Manual for 'string.format' lists what it accepts 
Instead of listing what it does not accept, which is always relative.
 2024-06-04 16:51:31 -03:00
Roberto Ierusalimschy 814213b65f utf8.offset returns also final position of character 
'utf8.offset' returns two values: the initial and the final position
of the given character.
 2024-05-27 11:29:39 -03:00
Roberto Ierusalimschy cbdf4969ec Manual: errors in lua_toclose are not memory errors 2024-05-23 09:55:26 -03:00
Roberto Ierusalimschy 262dc5729a Details 
Corrections in comments and manual. Added note in the manual about
local variables in the REPL.
 2024-05-08 17:50:10 -03:00
Roberto Ierusalimschy 9d985db7bb New year (2024) 2024-05-02 12:03:30 -03:00
Roberto Ierusalimschy 0897c0a428 'getmode' renamed to 'getMode' 
The name 'getmode' conficts with a function from BSD, defined
in <unistd.h>. Although 'lbaselib.c' cannot include that header,
'onelua.c' can.
 2024-04-08 14:28:26 -03:00
Roberto Ierusalimschy 5edacafcfa Yet another representation for arrays 
This "linear" representation (see ltable.h for details) has worse
locality than cells, but the simpler access code seems to compensate
that.
 2024-04-05 15:35:11 -03:00
Roberto Ierusalimschy 3507c3380f Small simplification in 'findloader' 
Instead of allways adding a prefix for the next message, and then
removing it if there is no message, add the prefix after each message.
 2024-04-03 16:01:23 -03:00
Roberto Ierusalimschy 88a50ffa71 Fixed dangling 'StkId' in 'luaV_finishget' 
Bug introduced in 05932567.
 2024-03-29 15:10:50 -03:00
Roberto Ierusalimschy 86a8e74824 Details 2024-03-28 17:11:33 -03:00
Roberto Ierusalimschy 9fa63a6268 Some 'unsigned int' changed to 'unsigned' 
'unsigned int' is too long sometimes. (We already write 'long' instead
of 'long int'...)
 2024-03-22 14:06:11 -03:00
Roberto Ierusalimschy 0593256707 'luaH_get' functions return tag of the result 
Undoing previous commit. Returning TValue increases code size without
any visible gains. Returning the tag is a little simpler than returning
a special code (HOK/HNOTFOUND) and the tag is useful by itself in
some cases.
 2024-03-21 11:23:21 -03:00
Roberto Ierusalimschy ce6f5502c9 'luaH_get' functions return 'TValue' 
Instead of receiving a parameter telling them where to put the result
of the query, these functions return the TValue directly. (That is,
they return a structure.)
 2024-03-18 15:56:32 -03:00
Roberto Ierusalimschy ba71060381 Removed "bulk operations" 
Negligible performance gains don't justify extra complexity.
 2024-03-15 11:23:35 -03:00
Roberto Ierusalimschy 3823fc6c81 Added "bulk operations" to arrays 
A few operations on arrays can be performed "in bulk", treating all
tags of a cell as a simple (or a few) word(s).
 2024-03-15 11:01:34 -03:00
Roberto Ierusalimschy 52aa2b5d24 Details 
- 'unsigned int' -> 'unsigned'
- Some explicit casts to avoid warnings
- Test avoids printing the value of 'fail' (which may not be nil)
 2024-03-13 09:20:34 -03:00
Roberto Ierusalimschy cc2b66c856 Removed type 'varint_t' 
size_t should be big enough to count the number of strings in a dump.
(And, by definition, it is big enough to count the length of each
string.)
 2024-03-13 09:16:51 -03:00
Roberto Ierusalimschy 65b07dd53d API asserts for illegal pops of to-be-closed variables 2024-03-11 14:05:06 -03:00
Roberto Ierusalimschy 7237eb3f1c Fixed warnings from different compilers 2024-02-15 11:18:34 -03:00
Roberto Ierusalimschy 165389b27b New interface to function 'luaL_openselectedlibs' 
Instead of preloading all non-loaded libraries, there is another
mask to select which libraries to preload.
 2024-02-15 11:17:39 -03:00
Roberto Ierusalimschy c8121ce34b Revising code for Varint encoding in dumps 
- Usign lua_Unsigned to count strings.
- Varint uses a type large enough both for size_t and lua_Unsigned.
- Most-Significant Bit 0 means last byte, to conform to common usage.
- (unrelated) Change in macro 'getaddr' so that multiplication is
  by constants.
 2024-02-12 15:16:11 -03:00
Roberto Ierusalimschy 7360f8d0fd Removed deprecated function 'setcstacklimit' 2024-02-07 14:20:43 -03:00
Roberto Ierusalimschy 6063c47031 Field 'lastfree' changed (back) to 'Node *' 
Due to allignment, it is already using the space of a pointer, and
a pointer generates slightly simpler code.
 2024-02-07 13:56:39 -03:00
Roberto Ierusalimschy 0c9bec0d38 Better handling of size limit when resizing a table 
Avoid silent conversions from int to unsigned int when calling
'luaH_resize'; avoid silent conversions from lua_Integer to int in
'table.create'; MAXASIZE corrected for the new implementation of arrays;
'luaH_resize' checks explicitly whether new size respects MAXASIZE.
(Even constructors were bypassing that check.)
 2024-02-07 13:39:54 -03:00
Roberto Ierusalimschy c31d6774ac Details 2024-01-29 14:29:24 -03:00
Roberto Ierusalimschy 108e0bdc84 Merge branch 'master' into nextversion 2024-01-25 13:52:52 -03:00
Roberto Ierusalimschy b34a97a4af Small optimization in 'luaH_psetint' 
It is quite common to write to empty but existing cells in the array
part of a table, so 'luaH_psetint' checks for the common case that
the table doesn't have a newindex metamethod to complete the write.
 2024-01-25 13:44:49 -03:00
Roberto Ierusalimschy 3e9dbe143d New function 'table.create' 
Creates a table preallocating memory. (It just exports to Lua the API
function 'lua_createtable'.)
 2024-01-18 15:16:26 -03:00
Roberto Ierusalimschy 4a8e480864 New mechanism to query GC parameters 2024-01-16 17:02:55 -03:00
Roberto Ierusalimschy 17e0c29d9b Clear interface between references and predefines 
The reference system has a defined way to add initial values to the
table where it operates.
 2024-01-15 11:31:49 -03:00
Roberto Ierusalimschy 8eb0abc9db Removed uses of LUA_NUMTAGS 
That constant was already deprecated (see commit 6aabf4b15e).
 2024-01-13 18:10:50 -03:00
Roberto Ierusalimschy d862da6d04 Optimizations for 'lua_rawgeti' and 'lua_rawseti' 
'lua_rawgeti' now uses "fast track"; 'lua_rawseti' still calls
'luaH_setint', but the latter was recoded to avoid extra overhead
when writing to the array part after 'alimit'.
 2024-01-12 15:50:51 -03:00
Roberto Ierusalimschy e288c5a918 Bug: Yielding in a hook stops in the wrong instruction 
Yielding in a hook must decrease the program counter, because it already
counted an instruction that, in the end, was not executed. However,
that decrement should be done only when about to restart the thread.
Otherwise, inspecting the thread with the debug library shows it one
instruction behind of where it really is.
 2024-01-11 13:44:16 -03:00
Roberto Ierusalimschy 7827c40c49 A few more tweaks in the garbage collector 2024-01-10 14:45:58 -03:00
Roberto Ierusalimschy e7af9cdf0b Fixed buffers reuse absolute line information 2023-12-27 17:42:00 -03:00
Roberto Ierusalimschy 12b6f610b0 Several tweaks in the garbage collector 
- back with step size in collectgarbage("step")
- adjustments in defaults for some GC parameters
- adjustments in 'luaO_codeparam'
 2023-12-27 12:09:11 -03:00
Roberto Ierusalimschy e81f586001 Removed compatibility option LUA_COMPAT_GCPARAMS 
The meaning of different GC parameters changed, so there is point in
supporting old values for them. The new code simply ignores the
parameters when changing the GC mode, so the incompatibility is small.
 2023-12-22 14:57:43 -03:00
Roberto Ierusalimschy e2cc179454 New option "setparms" for 'collectgarbage' 
The generational mode also uses the parameters for the incremental
mode in its major collections, so it should be easy to change those
parameters without having to change the GC mode.
 2023-12-22 14:48:07 -03:00
Roberto Ierusalimschy 5853c37a83 Bug: Buffer overflow in string concatenation 
Even if the string fits in size_t, the whole size of the TString object
can overflow when we add the header.
 2023-12-21 13:37:51 -03:00
Roberto Ierusalimschy ad0ea7813b GC parameters encoded as floating-point bytes 
This encoding brings more precision and a larger range for these
parameters.
 2023-12-20 16:25:20 -03:00
Roberto Ierusalimschy 666e95a66d Option 0 for step multiplier makes GC non-incremental 2023-12-20 11:06:27 -03:00
Roberto Ierusalimschy 4eda1acafa Cleaner protocol between 'lua_dump' and writer function 
'lua_dump' signals to the writer function the end of a dump, so that
is has more freedom when using the stack.
 2023-12-14 11:41:57 -03:00
Roberto Ierusalimschy ad73b33224 Check minor->major made at the end of a minor cycle 
It does not make sense to wait for another cycle to decide when much of
the information about creation of old objects is already available.
 2023-12-07 15:45:41 -03:00
Roberto Ierusalimschy 925fe8a0f2 First criteria for shifts minor<->major 2023-12-07 15:45:11 -03:00
Roberto Ierusalimschy 789e7acdea Major collections done incrementally 
Major collections do not need to "stop the world". Still pending:
criteria for shifts minor-major, shifts generational-incremental.
 2023-12-06 10:49:56 -03:00
Roberto Ierusalimschy 74b4013538 Removed macro 'changeage' 
It is simpler to use always 'setage'. The saving from 'changeage'
is too irrelevant.
 2023-12-01 16:42:01 -03:00
Roberto Ierusalimschy b719ff9399 Removed parameter in 'collectgarbage("step")' 
A call to 'collectgarbage("step")' always performs one GC basic step.
 2023-12-01 16:38:28 -03:00
Roberto Ierusalimschy 35a2fed2d1 Removed deprecated options in 'lua_gc' 
Options 'setpause' and 'setstepmul' were deprecated in Lua 5.4.
 2023-11-30 15:51:02 -03:00
Roberto Ierusalimschy 63d68bd657 Comments detailing the ages for generational GC 
Plus other comments and small details.
 2023-11-29 16:22:09 -03:00
Roberto Ierusalimschy 842a83f09c Panic functions should not raise errors 
The standard panic function was using 'lua_tostring', which may raise
a memory-allocation error if error value is a number.
 2023-11-24 16:08:55 -03:00
Roberto Ierusalimschy 011850a8f8 Details in the manual 2023-11-24 14:44:38 -03:00
Roberto Ierusalimschy 52b899d60d Simpler coding for new representation for arrays 
With the tags comming first in a cell, we can define the whole cell
as a C type and let C do part of the address computations.
 2023-11-24 14:41:07 -03:00
Roberto Ierusalimschy 25cd3d377e Buffer in 'luai_makeseed' measured in bytes 
In the (rare) cases when sizeof(void*) or sizeof(time_t) are not
multiples of sizeof(int), we still can use all their bytes in the seed.
 2023-11-15 10:28:32 -03:00
Roberto Ierusalimschy 1028f296a8 Default paths stored as external strings 2023-11-13 13:41:59 -03:00
Roberto Ierusalimschy 6d042a178f Auxiliary buffer uses external strings 
The buffer system from the auxiliary library reuses its buffer
as external memory when closing long strings.
 2023-11-13 13:12:33 -03:00
Roberto Ierusalimschy eabf425c76 Correct anchoring and GC barriers in 'loadString' 
Call to 'luaH_setint' could call the GC with the string unanchored.
Moreover, previously saved strings were being assigned to the prototype
without a barrier.
 2023-11-13 13:11:09 -03:00
Roberto Ierusalimschy 3b57e37e48 Fixed buffers save long strings as external. 2023-11-10 12:35:48 -03:00
Roberto Ierusalimschy 024f9064f1 External strings 
Strings can use external buffers to store their contents.
 2023-11-09 17:05:42 -03:00
Roberto Ierusalimschy 7f4906f565 Towards external strings 
Long strings have a pointer to string contents.
 2023-11-08 13:24:38 -03:00
Roberto Ierusalimschy b8a9d14032 Details 
Comments and parameter name in header file.
 2023-11-08 10:41:24 -03:00
Roberto Ierusalimschy 19afd91687 Solving merge issue with use of tables in dump/undump 
The use of tables in dump/undump to reuse strings did not exist in
the version that changed the representation of arrays, so it was not
corrected for the new API for tables.
 2023-11-08 10:02:06 -03:00
Roberto Ierusalimschy 37c215b43f Merge branch 'newarray' into nextversion 2023-11-07 17:26:15 -03:00
Roberto Ierusalimschy 9e99f3071d Merge branch 'master' into nextversion 2023-11-07 17:25:46 -03:00
Roberto Ierusalimschy fa075b7953 Merge branch 'master' into newarray 2023-11-03 15:39:14 -03:00
Roberto Ierusalimschy 08a077d673 Full implementation of new representation for arrays 2023-11-03 15:26:13 -03:00
Roberto Ierusalimschy 7923dbbf72 Bug: Recursion in 'getobjname' can stack overflow 
'getobjname' now broken in two, a basic version that handles locals,
upvalues, and constants, and a full version, which uses the basic
version to handle table accesses (globals and fields).
 2023-11-01 12:00:54 -03:00
Roberto Ierusalimschy 43c8e5bded Full abstraction for representation of array values 2023-10-30 14:25:59 -03:00
Roberto Ierusalimschy b8b709b6d4 Avoid direct accesses to the array part of a table 2023-10-27 16:32:49 -03:00
Roberto Ierusalimschy 81e4fce530 Simpler test in 'luaH_getint' 
The test whether key is inside the array part of a table uses a bit
trick to avoid computing the real size of the array part.
 2023-10-26 16:12:25 -03:00
Roberto Ierusalimschy 6baee9ef9d Removed test for "corrupted binary dump" 
Test is too non portable. (For instance, it does not work for
different number types.)
 2023-09-08 16:19:21 -03:00
Roberto Ierusalimschy edd8589f47 Avoid casts from unsigned long to floating-point 
Old Microsoft compilers do not support those casts.
 2023-09-08 11:34:39 -03:00
Roberto Ierusalimschy 14e416355f Added suport for Fixed Buffers 
A fixed buffer keeps a binary chunk "forever", so that the program
does not need to copy some of its parts when loading it.
 2023-09-05 15:30:45 -03:00
Roberto Ierusalimschy f33cda8d6e New macro 'getlstr' 
Accesses content and length of a 'TString'.
 2023-08-30 11:26:16 -03:00
Roberto Ierusalimschy 96f7714237 Field 'Proto.is_vararg' uses only one bit 
So that the other bits can be used for other purposes.
 2023-08-30 10:44:28 -03:00
Roberto Ierusalimschy 0554581605 Opcode in dumps is stored properly aligned 2023-08-25 17:40:20 -03:00
Roberto Ierusalimschy 07a9eab23a Cannot use 'getshrstr' before setting 'shrlen' 2023-08-25 15:55:14 -03:00
Roberto Ierusalimschy c815c2f0eb Merge branch 'master' into nextversion 2023-08-23 15:14:03 -03:00
Roberto Ierusalimschy 9363a8b990 Documentation for "LUA_NOENV" 
Registry field "LUA_NOENV" (that signals to libraries that option -E
is on) now part of the "official" API of Lua stand-alone.
 2023-08-23 13:50:38 -03:00
Roberto Ierusalimschy 5ab6a5756b Bug: Wrong line number for function calls 2023-08-23 13:49:27 -03:00
Roberto Ierusalimschy 9b4f39ab14 More disciplined use of 'getstr' and 'tsslen' 
We may want to add other string variants in the future; this change
documents better where the code may need to handle those variants.
 2023-08-17 15:59:28 -03:00
Roberto Ierusalimschy f4211a5ea4 More control over encoding of test files 
The few UTF-8 test files are commented as such, and there is only one
non UTF-8 test file (to test non UTF-8 sources).
 2023-08-17 10:42:56 -03:00
Roberto Ierusalimschy 1b3f507f62 Bug: Call hook may be called twice when count hook yields 
Took the opportunity and moved the code that controls call hooks
in 'luaV_execute' into a function.
 2023-07-25 16:50:44 -03:00
Roberto Ierusalimschy 6b51133a98 Thread stacks resized in the atomic phase 
Although stack resize can be a little expensive, it seems unusual to
have too many threads needing resize during one GC cycle. On the other
hand, the change allows full collections to skip the propagate phase,
going straight from a pause to the atomic phase.
 2023-07-13 14:55:46 -03:00
Roberto Ierusalimschy cbae016202 Details 2023-07-03 14:12:54 -03:00
Roberto Ierusalimschy ab6a949522 Merge branch 'master' into nextversion 2023-06-22 11:41:48 -03:00
Roberto Ierusalimschy ea39042e13 Removed redundancy in definitions of version/release 
String rendering now derived from the numeric original definitions.
 2023-06-21 15:04:24 -03:00
Roberto Ierusalimschy 05ec55f16b Avoid inclusion loop in 'ltm.h' 2023-06-16 11:52:14 -03:00
Roberto Ierusalimschy f623b96932 Bug: read overflow in 'l_strcmp' 
Equality according to 'strcoll' does not imply that strings have
the same length.
 2023-06-14 14:38:07 -03:00
Roberto Ierusalimschy 9be74ccc21 Several functions turned 'static' 
Several functions that were already being used only inside their
own file have been declared as 'static'.
 2023-05-22 14:47:54 -03:00
Roberto Ierusalimschy 819bd51d87 Some cleaning in the new table API 2023-05-16 16:53:29 -03:00
Roberto Ierusalimschy f8d30826dd New table API for 'set' functions 2023-05-16 14:55:49 -03:00
Roberto Ierusalimschy 351ccd7332 Towards a new implementation of arrays 
The array part of a table wastes too much space, due to padding.
To avoid that, we need to store values in the array as something
different from a TValue. Therefore, the API for table access
should not assume that any value in a table lives in a *TValue.
This commit is the first step to remove that assumption: functions
luaH_get*, instead of returning a *TValue where the value lives,
receive a *TValue where to put the value being accessed.
(We still have to change the luaH_set* functions.)
 2023-05-15 17:56:25 -03:00
Roberto Ierusalimschy 09f3c2372f Option '-l' discards version sufix from file name 
Like 'require', the command-line option '-l' discards an optional
version suffix (everything after an hyphen) from a file name when
creating the module name.
 2023-05-15 13:46:38 -03:00
Roberto Ierusalimschy c197885cb0 Small improvements in tests 2023-05-15 10:20:13 -03:00
Roberto Ierusalimschy 934e77a286 Details 
- Better comments about short strings in opcodes.
- luaH_newkey made static.
 2023-05-15 10:07:25 -03:00
Roberto Ierusalimschy 6443185167 "Emergency" new version 5.4.6 
'lua_resetthread' is back to its original signature, to avoid
incompatibilities in the ABI between releases of the same version.
New function 'lua_closethread' added with the "correct" signature.
 2023-05-02 16:41:43 -03:00
Roberto Ierusalimschy e15f1f2bb7 Details 
Typos in comments and details in the manual.
 2023-04-18 09:44:10 -03:00
Roberto Ierusalimschy b5c65705ca New year (2023) 
Also, small tweak in makefile. (-Wsign-compare is already enabled by
-Wextra.)
 2023-03-31 11:47:31 -03:00
Roberto Ierusalimschy 7ca8105a2e More orderliness in casts of enumerations 2023-03-27 16:29:39 -03:00
Roberto Ierusalimschy 94689ac3ad More regularity in uses of enums in 'lcode.c' 2023-03-24 15:52:03 -03:00