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Author SHA1 Message Date
Roberto Ierusalimschy
ded2ad2d86 Slightly faster way to check for "global" 2025-05-16 14:51:07 -03:00
Roberto Ierusalimschy
3fb7a77731 Internalized string "break" kept by the parser 
The parser uses "break" as fake label to compile "break" as "goto
break". To avoid producing this string at each use, it keeps it
available in its state.
 2025-05-15 12:43:37 -03:00
Roberto Ierusalimschy
fded0b4a84 Remove compat code in parser when not needed 2025-05-13 11:50:43 -03:00
Roberto Ierusalimschy
3b9dd52be0 Collective declaration for globals ('global *') 2025-05-13 11:43:10 -03:00
Roberto Ierusalimschy
7dc6aae290 Correct line in error message for constant function 2025-05-12 11:42:45 -03:00
Roberto Ierusalimschy
5b1ab8efdc 'expdesc' doesn't depend on 'actvar' for var. info. 
In preparation for 'global *', the structure 'expdesc' does not point
to 'actvar.arr' for information about global variables.
 2025-05-11 11:51:58 -03:00
Roberto Ierusalimschy
7ade155762 Janitorial work on casts 2025-05-08 15:18:57 -03:00
Roberto Ierusalimschy
d827e96f33 Using 'l_uint32' for unicode codepoints in scanner 
'l_uint32' is enough for unicode codepoints (versus unsigned long),
and the utf-8 library already uses that type.
 2025-05-08 12:49:39 -03:00
Roberto Ierusalimschy
3f0ea90aa8 New syntax 'global function' 2025-05-08 11:08:03 -03:00
Roberto Ierusalimschy
4365a45d68 Checks for read-only globals 2025-05-06 15:54:05 -03:00
Roberto Ierusalimschy
be81209063 First implementation of global declarations 2025-05-05 16:24:59 -03:00
Roberto Ierusalimschy
e055905914 New macro 'pushvfstring' 
Helps to ensure that 'luaO_pushvfstring' is being called correctly,
with an error check after closing the vararg list with 'va_end'.
 2025-04-23 11:55:04 -03:00
Roberto Ierusalimschy
9b014d4bcd Details (typos in comments) 2025-04-23 11:36:09 -03:00
Roberto Ierusalimschy
50fd8d03c3 Function 'luaK_semerror' made vararg 
All calls to 'luaK_semerror' were using 'luaO_pushfstring' to create
the error messages.
 2025-04-17 14:58:55 -03:00
Roberto Ierusalimschy
3dbb1a4b89 In gen. GC, some gray objects stay in gray lists 
In generational collection, objects marked as touched1 stay in gray
lists between collections. This commit fixes a bug introduced in
commit 808976bb59.
 2025-04-15 17:00:30 -03:00
Roberto Ierusalimschy
3dd8ea54da Order change in 'pushfuncname' 
'pushglobalfuncname' can be quite slow (as it traverses all globals and
all loaded modules), so try first to get a name from the code.
 2025-04-03 15:31:22 -03:00
Roberto Ierusalimschy
620f49a7aa Tiny refactoring in io.flush 2025-04-03 12:56:52 -03:00
Roberto Ierusalimschy
3f4f28010a io.write returns number of written bytes on error 2025-04-03 11:32:49 -03:00
Roberto Ierusalimschy
93e347b519 Corrections of stack addresses back to strict mode 
It can be a little slower, but only for quite large stacks and moreover
stack reallocation is not a common operation.  With no strong contrary
reason, it is better to follow the standard.
 2025-04-01 10:41:25 -03:00
Roberto Ierusalimschy
f4123b2fc2 Growth factor of 1.5 for stack and lexical buffer 2025-03-31 13:44:41 -03:00
Roberto Ierusalimschy
37a1b72706 Small optimization in 'project' from math.random 
When computing the Mersenne number, instead of spreading 1's a fixed
number of times (with shifts of 1, 2, 4, 8, 16, and 32), spread only
until the number becomes a Mersenne number.
 2025-03-27 15:22:40 -03:00
Roberto Ierusalimschy
ef5d171cc8 New macro 'l_numbits' 2025-03-27 12:38:29 -03:00
Roberto Ierusalimschy
b0f3df16a4 Addition in math.random can overflow 
To avoid complains from some tools, the addition when computing
math.random(n,m), which is computed as n + random(0, m - n), should
use unsigned integers.
 2025-03-25 11:43:03 -03:00
Roberto Ierusalimschy
cad5a4fdbb Details 
Small changes in test library:
- execute mode added to 'all.lua';
- more information about subtypes (tags) when printing a stack.
 2025-03-24 15:23:55 -03:00
Roberto Ierusalimschy
fdbb4c2341 Detail in the manual 2025-03-17 16:05:47 -03:00
Roberto Ierusalimschy
921832be8d New function 'resetCI' 
New function 'resetCI' resets the CallInfo list of a thread, ensuring
a proper state when creating a new thread, closing a thread, or
closing a state, so that we can run code after that. (When closing a
thread, we need to run its __close metamethods; when closing a
state, we need to run its __close metamethods and its finalizers.)
 2025-03-17 14:32:08 -03:00
Roberto Ierusalimschy
205f9aa67b New function 'printallstack' in test library 2025-03-17 14:30:43 -03:00
Roberto Ierusalimschy
94d38560c3 Wrong error message when using "_ENV" fields 
The string "_ENV" is erroneously identified as a variable _ENV,
so that results from a field is classified as a global.
 2025-03-14 15:16:09 -03:00
Roberto Ierusalimschy
c2dc6e8e94 Missing GC barrier in 'luaV_finishset' 2025-03-14 12:37:19 -03:00
Roberto Ierusalimschy
22974326ca Use after free in 'luaV_finishset' 
If a metatable is a weak table, its __newindex field could be collected
by an emergency collection while being used in 'luaV_finishset'. (This
bug has similarities with bug 5.3.2-1, fixed in commit a272fa66.)
 2025-03-13 15:30:52 -03:00
Roberto Ierusalimschy
c931d86e98 'luaD_seterrorobj' should not raise errors 
This function can be called unprotected, so it should not raise any
kind of errors. (It could raise a memory-allocation error when creating
a message).
 2025-03-12 15:51:16 -03:00
Roberto Ierusalimschy
d9e0f64a5d Small changes in the manual 2025-03-12 15:45:39 -03:00
Roberto Ierusalimschy
ab66652b32 Removed copyright notice from 'testes/all.lua' 
All test files refer to the main copyright notice in 'lua.h'.
 2025-03-12 14:00:58 -03:00
Roberto Ierusalimschy
4398e488e6 New test file 'memerr.lua' 
Tests for memory-allocation errors moved from 'api.lua' to this new
file, as 'api.lua' was already too big. (Besides, these tests have
nothing to do with the API.)
 2025-03-12 13:52:35 -03:00
Roberto Ierusalimschy
808976bb59 Small correction in 'traverseweakvalue' 
After a weak table is traversed in the atomic phase, if it does not
have white values ('hasclears') it does not need to be retraversed
again. (Comments were correct, but code did not agree with them.)
 2025-03-12 12:35:36 -03:00
Roberto Ierusalimschy
b5b1995f29 Checks for type 'int' added to binary header 
The structure 'AbsLineInfo' is hard-dumped into binary chunks, and
it comprises two 'int' fields.
 2025-03-10 15:21:32 -03:00
Roberto Ierusalimschy
cb88c1cd5d Detail 
Added macro LUA_FAILISFALSE to make easier to change the fail value
from nil to false.
 2025-02-28 15:48:45 -03:00
Roberto Ierusalimschy
ee99452158 Error object cannot be nil 
Lua will change a nil as error object to a string message, so that it
never reports an error with nil as the error object.
 2025-02-28 14:53:58 -03:00
Roberto Ierusalimschy
127a8e80fe '__close' gets no error object if there is no error 
Instead of receiving nil as a second argument, __close metamethods are
called with just one argument when there are no errors.
 2025-02-28 10:10:27 -03:00
Roberto Ierusalimschy
f9e35627ed 'lua_State.nci' must be an integer 
Lua can easily overflow an unsigned short counting nested calls.
(The limit to this value is the maximum stack size, LUAI_MAXSTACK,
which is currently 1e6.)
 2025-02-26 11:31:10 -03:00
Roberto Ierusalimschy
ceac82f78b Details 
Comments, small changes in the manual, an extra test for errors in
error handling, small changes in tests.
 2025-02-26 11:29:54 -03:00
Roberto Ierusalimschy
e5f4927a0b Array sizes in undump changed from unsigned to int 
Array sizes are always int and are dumped as int, so there is no reason
to read them back as unsigned.
 2025-02-20 10:09:04 -03:00
Roberto Ierusalimschy
cd38fe8cf3 Added macro LUAI_STRICT_ADDRESS 
By default, the code assumes it is safe to use a dealocated pointer
as long as the code does not access it.
 2025-02-18 17:02:32 -03:00
Roberto Ierusalimschy
fa1382b5cd Main thread is a regular field of global_State 
They were already allocated as a single block, so there is no need
for the global_State to point to its main thread.
 2025-01-31 13:51:38 -03:00
Roberto Ierusalimschy
d1e677c52b New type 'TStatus' for thread status/error codes 2025-01-30 11:41:39 -03:00
Roberto Ierusalimschy
f7439112a5 Details (in test library) 
- Added support for negative stack indices in the "C interpreter"
- Improved format when printing values
 2025-01-29 14:47:06 -03:00
Roberto Ierusalimschy
39a14ea7d7 CallInfo bit CIST_CLSRET broken in two 
Since commit f407b3c4a, it was being used for two distinct (and
incompatible) meanings:
A: Function has TBC variables (now bit CIST_TBC)
B: Interpreter is closing TBC variables (original bit CIST_CLSRET)

B implies A, but A does not imply B.
 2025-01-28 11:45:45 -03:00
Roberto Ierusalimschy
c4e7cdb541 Renaming two new functions 
'lua_numbertostrbuff' -> 'lua_numbertocstring'
'lua_pushextlstring' -> 'lua_pushexternalstring'
 2025-01-27 16:09:55 -03:00
Roberto Ierusalimschy
7d7ae8781e Parameters for 'lua_createtable' back to int 
Tables don't accept sizes larger than int.
 2025-01-21 13:33:59 -03:00
Roberto Ierusalimschy
724012d3d0 Small change in macro 'isvalid' 
The "faster way" to check whether a value is not 'nilvalue' is not
faster. (Both forms entail one memory access.)
 2025-01-16 16:11:49 -03:00