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515 Commits

Author SHA1 Message Date
Roberto Ierusalimschy
ab0a851db4 'luaD_tryfuncTM' can ensure it does not change the stack 2018-01-10 17:19:27 -02:00
Roberto Ierusalimschy
28323aeaa6 by-one error when filling missing arguments in a tail call 2017-12-29 13:44:51 -02:00
Roberto Ierusalimschy
8691612f01 when calling a hook, cannot decrease 'ci->top' (to preserve stack 
size if the stack is reallocated)
 2017-12-28 12:17:09 -02:00
Roberto Ierusalimschy
1d5b885437 when running Lua code, there is no need to keep 'L->top' "correct"; 
set it only when needed.
 2017-12-20 12:58:05 -02:00
Roberto Ierusalimschy
4dc0be950a new macro 'isLuacode' (to distinguish regular Lua code from 
hooks, where C code can run inside a Lua function).
 2017-12-19 14:40:17 -02:00
Roberto Ierusalimschy
b3f924bc69 'Proto->numparams' does not include vararg parameter 
(one less subtraction when calling functions...)
 2017-12-15 11:07:10 -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
bfb88e99e9 'luaD_growstack' cannot raise any errors when 'raiseerror' is 
false (+ some comments)
 2017-12-11 10:43:40 -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
e0bece77d6 detail 2017-12-01 13:44:51 -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
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
14c3aa12b5 more direct implementation for tail calls. 2017-11-21 12:18:03 -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
ad0704e40c back to 'CallInfo' (no gains with its removal) 2017-11-07 11:25:26 -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
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
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
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
c25380c28d details (using proper version of 'setobj') 2017-05-23 09:50:11 -03:00
Roberto Ierusalimschy
6d95de83c6 no more field 'base' in CallInfo (base is always equal to 'func + 1', 
with old/new vararg implementation)
 2017-05-13 10:54:47 -03:00
Roberto Ierusalimschy
5c8770f896 back to old-style vararg system (with vararg table collecting extra 
arguments)
 2017-05-13 10:04:33 -03:00
Roberto Ierusalimschy
24f6e236a3 'moveresults' and 'luaD_poscall' moved up in the file 2016-12-13 13:52:21 -02:00
Roberto Ierusalimschy
8edbf57fb8 detail (ANSI C does not accept empty arguments to macros) 2016-09-20 13:37:45 -03:00
Roberto Ierusalimschy
7fe1a4cff3 cleaner and more correct code for 'luaD_shrinkstack' (the old 
test "inuse <= LUAI_MAXSTACK" for stack overflow is not correct,
as the real maximum usable size is "LUAI_MAXSTACK - EXTRA_STACK")
 2016-09-08 13:36:26 -03:00
Roberto Ierusalimschy
aeb4c6fff1 comments + removed unused variable 2016-09-05 15:53:02 -03:00
Roberto Ierusalimschy
e4a9e6fcca do not eliminate varargs from functions that do not use varargs 
(confuses the debug lib and gains very little in performance)
 2016-08-01 16:51:24 -03:00
Roberto Ierusalimschy
9de2bb0d62 bug: When a coroutine tries to resume a non-suspended coroutine, 
it coud do some mess (and break C assertions) before detecting the error.
Now it tests for those errors before anything else.
 2016-07-29 14:12:44 -03:00
Roberto Ierusalimschy
a051b3323e comments (about hooks vs signals) 2015-12-16 14:40:07 -02:00
Roberto Ierusalimschy
d103312661 details (typos in comments) 2015-11-19 17:16:22 -02:00
Roberto Ierusalimschy
9a5d6aedb7 trying to optimize a little 'luaD_poscall' 2015-11-13 11:24:26 -02:00
Roberto Ierusalimschy
e61ee8a036 in 'luaD_call', use two functions instead of one with fixed boolean 
argument + stack error handling in 'luaD_call' moved to a separated
function
 2015-11-02 16:48:49 -02:00
Roberto Ierusalimschy
8c1fb91802 macro 'incr_top' replaced by function 'luaD_inctop'. (It is not used 
in critical time pathes, can save a few bytes without the macro)
 2015-11-02 14:09:30 -02:00
Roberto Ierusalimschy
c5363a1b58 in 'luaD_precall', in vararg functions, complete missing parameters 
only after moving them to final place (avoids checking the stack
again)
 2015-11-02 12:06:01 -02:00
Roberto Ierusalimschy
ffd0d1232d using more "conventional" loops in 'luaD_poscall' (probably a little 
more efficient?)
 2015-11-02 09:48:59 -02:00
Roberto Ierusalimschy
6707ce6349 function prepares vararg only if it really uses them (chunks 
are always declared vararg but seldom uses them)
 2015-10-28 15:28:40 -02:00
Roberto Ierusalimschy
ae515a346c comments for luaD_precall/luaD_poscall 2015-10-28 10:25:36 -02:00
Roberto Ierusalimschy
3cdf1d676b details (avoid 'case' inside block + avoid using one variable for 
two roles)
 2015-10-28 10:06:45 -02:00
Roberto Ierusalimschy
5bdee4f810 small changes to allow 'precall' to spend time preserving 'func' 
only when needed (that is, when stack actually changes)
 2015-10-21 16:40:47 -02:00
Roberto Ierusalimschy
41964648ee long strings are created directly in final position when possible 
(instead of using an auxiliar buffer to first create the string
and then allocate the final string and copy result there)
 2015-09-08 12:41:05 -03:00
Roberto Ierusalimschy
dcad08b76d details (use original type when saving variable's value) 2015-06-18 11:19:52 -03:00
Roberto Ierusalimschy
d39bb51faa bug: interpreter cannot pop activation frame before calling return 
hook (as it may want to access local variables active by the end
of the function)
 2015-05-22 14:48:19 -03:00
Roberto Ierusalimschy
484bf14a6b calls to 'luaC_checkGC' in luaD_precall moved near to 'luaD_checkstack' 
(which is what can need memory)
 2015-03-30 13:05:23 -03:00
Roberto Ierusalimschy
a30c66f0fc macro 'luai_apicheck'/'api_check' back with a 'lua_State' parameter 
(some people use it)
 2015-03-06 16:49:50 -03:00
Roberto Ierusalimschy
9a38c08011 no need to ensure any stack space for panic function + some changes 
in 'tryfuncTM' (small simplification)
 2014-11-11 15:13:39 -02:00
Roberto Ierusalimschy
bfa0898312 bug: memory error in panic mode does not push error message on 
the stack + stack check in tryfuncTM + comments
 2014-11-10 15:42:04 -02:00
Roberto Ierusalimschy
e75c0148c3 comments (references to "ANSI C" changed to "ISO C", which is the 
international name
 2014-11-02 17:33:33 -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
bdf566a8a3 `name' in comments changed to 'name' 2014-10-25 09:50:46 -02:00
Roberto Ierusalimschy
f97c64d7bf macros 'LUA_QL'/'LUA_QL' deprecated 2014-10-17 13:28:21 -03:00
Roberto Ierusalimschy
85fc9ecd5f detail ('G(L)' -> 'g') 2014-10-08 09:20:26 -03:00
Roberto Ierusalimschy
2a21f6c894 'lua_Kcontext' -> 'lua_KContext' 2014-10-07 15:29:13 -03:00
Roberto Ierusalimschy
2be88d5084 'lua_Ctx' -> 'lua_Kcontext' 2014-08-01 14:33:08 -03:00
Roberto Ierusalimschy
1aa4f69b51 new type 'lua_Ctx' for continuation-function contexts (to allow type 
to be configurable)
 2014-07-17 10:53:37 -03:00
Roberto Ierusalimschy
5bbb4a06a6 removed unused parameter Ä'L' in macro 'api_check' and company 2014-07-15 18:26:50 -03:00
Roberto Ierusalimschy
b9dcf9974d detail (typos in comments) 2014-06-30 16:48:08 -03:00
Roberto Ierusalimschy
89b56e7d84 more precision between closure types ('LClosure' x 'CClosure') 2014-06-19 15:27:20 -03:00
Roberto Ierusalimschy
fa3113ffbf cleaner way to handle bit CIST_OAH (with auxiliar macros) 2014-06-12 16:07:30 -03:00
Roberto Ierusalimschy
d94bb6c273 janitor work on 'lua_resume' and related code 2014-06-11 13:01:55 -03:00
Roberto Ierusalimschy
88a9e51f34 bit-field CIST_YIELDED removed (it was never consulted) 2014-06-10 16:18:50 -03:00
Roberto Ierusalimschy
542b6cfc02 no need for field 'status' in structure 'CallInfo' (after removal 
of 'lua_getctx') + field 'old_allowhook' can be packed into a single
bit
 2014-06-10 15:51:21 -03:00
Roberto Ierusalimschy
6f6fd96e3b new type lua_KFunction + no more 'lua_getctx' 2014-06-10 14:41:38 -03:00
Roberto Ierusalimschy
35a6aad0d7 added comments 2014-06-09 13:32:18 -03:00
Roberto Ierusalimschy
1bd70a8e40 new function 'lua_isyieldable' (and 'coroutine.isyieldable') 2014-05-08 10:52:20 -03:00
Roberto Ierusalimschy
da4811238a details (typos in comments) 2014-03-21 10:52:33 -03:00
Roberto Ierusalimschy
c6c41e85b2 more uniformity for defining system-dependent features 2014-02-26 12:27:56 -03:00
Roberto Ierusalimschy
ffa96d988d field 'op' renamed to 'open' 2014-02-15 11:12:01 -02:00
Roberto Ierusalimschy
7a8eb83b4a bug: attempting to resume the running coroutine makes it unyieldable 2013-11-08 16:16:33 -02:00
Roberto Ierusalimschy
4c6dfc342b CallInfo lists shrinks together with their associated stacks 2013-09-17 12:40:06 -03:00
Roberto Ierusalimschy
af35c7f398 upvalues collected by reference count 2013-08-27 15:53:35 -03:00
Roberto Ierusalimschy
fa3b126a23 BUG: stack overflow in vararg functions with many fixed 
parameters called with few arguments
 2013-04-19 18:05:04 -03:00
Roberto Ierusalimschy
b157f3546e BUG: 'pcall' may not restore previous error function when 
inside coroutines
 2012-10-01 11:05:04 -03:00
Roberto Ierusalimschy
2dc91ca5ee checks garbage collector every time it calls a function (as the 
stack can grow and so allocates more memory)
 2012-08-28 15:30:45 -03:00
Roberto Ierusalimschy
b926472312 change in error message 2012-06-29 16:23:33 -03:00
Roberto Ierusalimschy
cc2a60ecb7 bugs in yields inside debug hooks 2012-06-08 12:14:04 -03:00
Roberto Ierusalimschy
3cadc37f47 no more 'Proto' objects on the stack. Protos are anchored on outer 
Protos or on a Closure, which must be created before the Proto.
 2012-05-08 10:53:33 -03:00
Roberto Ierusalimschy
a94ce68e0a bug: wrong handling of 'nCcalls' in coroutines 2012-04-26 17:41:18 -03:00
Roberto Ierusalimschy
3617e04e97 'lua_load' has an extra argument 'mode' 2011-11-29 13:55:08 -02:00
Roberto Ierusalimschy
217e67cb22 new type 'l_noret' for function that do not return 2011-10-07 17:45:19 -03:00
Roberto Ierusalimschy
ec431ce5db comment 2011-09-12 17:33:03 -03:00
Roberto Ierusalimschy
3dc5475e23 'nCcalls' should be local to each thread, as each thread may have its 
own C stack (with LuaThreads or something similar)
 2011-08-23 14:24:34 -03:00
Roberto Ierusalimschy
f180822fa6 back to internal table for 'ctype', no more locale manipulation 2011-06-28 12:42:04 -03:00
Roberto Ierusalimschy
136f8e148d added cast to void to calls to 'setlocale' (to easy redefining it as 
a constant)
 2011-06-20 13:36:03 -03:00
Roberto Ierusalimschy
cb4950a6d8 parser must work with C locale, but external locale must be preserved 2011-06-18 14:08:58 -03:00
Roberto Ierusalimschy
3b44821334 stricter control (using tag variants) over closure kinds (Lua x C) 2011-06-02 16:31:40 -03:00
Roberto Ierusalimschy
3f04a9f2c0 code is simpler without 'goto' here 2011-05-30 13:36:38 -03:00
Roberto Ierusalimschy
7482e8f914 no need of lookahead in Zio 2011-02-23 10:13:10 -03:00
Roberto Ierusalimschy
f079749287 some reorganization of dynamic data structures used by the parser 2011-02-07 15:14:50 -02:00
Roberto Ierusalimschy
7cc0e63d8a first implementation of 'goto' 2011-02-04 15:34:43 -02:00
Roberto Ierusalimschy
4590a89b32 corrected warnings from different compilers (mostly casts and small 
details)
 2010-10-25 17:01:37 -02:00
Roberto Ierusalimschy
ffff9a49da 'nresults' in CallInfo now refers to number of results that the current 
function returns (and not what it expects from a call)
 2010-09-30 14:21:31 -03:00
Roberto Ierusalimschy
545f43065f 'luaF_newLclosure' gets prototype of new closure as argument 2010-06-04 10:06:15 -03:00
Roberto Ierusalimschy
237f755dca typos in comments 2010-05-05 15:49:56 -03:00
Roberto Ierusalimschy
53f9499f7f "light C function" is a better name than "C-function pointer" 2010-04-18 10:22:48 -03:00
Roberto Ierusalimschy
e7ffb1b501 macro LUA_USE_LONGJMP allows choosing longjmp when compiling Lua as 
C++ code
 2010-04-18 09:41:35 -03:00
Roberto Ierusalimschy
7dfa4cd655 first implementation of light C functions 2010-04-14 12:13:48 -03:00
Roberto Ierusalimschy
055104f5b6 keep memory-error message in the global state, so that its use 
does not depend on Lua internalizing strings to avoid a string
creation on memory errors
 2010-04-08 14:16:46 -03:00
Roberto Ierusalimschy
064e406f67 no more fenvs! 2010-03-26 17:58:11 -03:00
Roberto Ierusalimschy
4c54cd3a10 when yielding, original 'func' value must be kept and restored so 
that 'poscall' puts results in the right slot.
 2010-02-09 09:56:29 -02:00
Roberto Ierusalimschy
0c7de97d47 correct error message when yielding from outside a coroutine 2010-01-13 14:17:32 -02:00
Roberto Ierusalimschy
f84b575cfa no more pseudoindex LUA_GLOBALSINDEX; global table now accessible 
through registry
 2009-12-22 13:32:50 -02:00
Roberto Ierusalimschy
e0f9d1c8f5 removed export of function only for coco 2009-12-17 10:28:57 -02:00
Roberto Ierusalimschy
de6fc75d63 several configuration options that do not change often moved out of 
luaconf.h and into more internal files
 2009-12-17 10:26:09 -02:00
Roberto Ierusalimschy
2bb19ccf08 reordering of some functions + cleaner way to code lua_resume/resume + 
small bug in lua_resume (in case of calling errors lua_resume should
remove only new arguments from the stack and push error message).
 2009-12-10 16:20:07 -02:00
Roberto Ierusalimschy
2643da67c6 error messages from 'lua_resume' must be generated in protected mode, 
to avoid raising memory errors
 2009-12-08 16:59:24 -02:00
Roberto Ierusalimschy
3e41afcec5 extra api checks for number of returns of C functions and for lua_yield 2009-11-27 13:37:59 -02:00
Roberto Ierusalimschy
b0f2b288a6 new scheme for debug info about tail calls: no more 'fake' stack entries, 
but stack entry knows whether it was tail called
 2009-11-25 13:27:51 -02:00
Roberto Ierusalimschy
2d5931ebc8 ensure that reader function cannot yield during parsing 2009-11-17 14:46:44 -02:00
Roberto Ierusalimschy
35fa276099 parser/scanner keep GC running 2009-11-17 14:33:38 -02:00
Roberto Ierusalimschy
5bc91c6405 no more one environment per thread: all threads share a single global 
environment
 2009-10-23 17:12:19 -02:00
Roberto Ierusalimschy
916587508c parser keeps list of active local variables in a single dynamic array, 
therefore saving C stack space
 2009-10-11 17:02:19 -03:00
Roberto Ierusalimschy
5938212748 information about upvalues (where they come from) kept in Proto structure, 
instead of sequence of pseudo-opcodes after OP_CLOSURE
 2009-09-28 13:32:50 -03:00
Roberto Ierusalimschy
0e45ffb8e4 first implementation of 'lua_yieldk' (yield with continuation) 2009-09-14 11:30:39 -03:00
Roberto Ierusalimschy
f76f4cb79d new way to control stack overflow, controling only total size of the stack 2009-07-15 14:26:14 -03:00
Roberto Ierusalimschy
9423e22aa3 no more L->base + ci->base only for Lua functions (C functions may use 
'func')
 2009-06-01 16:09:26 -03:00
Roberto Ierusalimschy
019ebcb85f errors in finalizers are propagated with code LUA_ERRGCMM (ERRor in 
__gc MetaMethod)
 2009-05-21 17:06:11 -03:00
Roberto Ierusalimschy
e091a254df new way to GC stacks: the entire stack must be correct all the times; 
the 'dead' part of a stack (after the top) must have only nil's, so
that 'top' may go up without cleaning the stack.
 2009-04-28 16:04:36 -03:00
Roberto Ierusalimschy
e5249b9fb5 'exit' changed to 'abort' in case of panic (+ some extra comments) 
'abort' seems more in line with panic ("abnormal termination")
 2009-04-26 18:55:35 -03:00
Roberto Ierusalimschy
d3037d97ec several small improvements based on 'ci' being fixed now (including 
erasing savedpc from lua_State)
 2009-04-17 19:00:01 -03:00
Roberto Ierusalimschy
4f88418170 'CallInfo' stack implemented as double-linked list instead of an array 2009-04-17 11:28:06 -03:00
Roberto Ierusalimschy
311e9f3ceb 'nresults' is saved in CallInfo from the caller, not the called 2009-04-15 13:53:39 -03:00
Roberto Ierusalimschy
70a63fa5ad first implementation of yieldable 'pcall' 2009-04-08 15:04:33 -03:00
Roberto Ierusalimschy
3dbf305408 no more support for old-style varargs 2009-03-26 09:57:01 -03:00
Roberto Ierusalimschy
6d0ae11c57 'context' added to suspendable calls 2009-03-23 11:26:12 -03:00
Roberto Ierusalimschy
ba484b9eb1 yielding across lua_call (first version) 2009-03-10 14:14:37 -03:00
Roberto Ierusalimschy
1817dfc301 initial separation, in CallInfo, of what is relevant only to Lua 
functions or only to C functions
 2009-03-04 10:32:29 -03:00
Roberto Ierusalimschy
910310d3ba if thread has no error handling, try main thread handler before panicking 2009-03-03 15:51:24 -03:00
Roberto Ierusalimschy
2b579b4b83 panic mode does not reset stack (so that panic function can gather 
debug information from it)
 2009-02-18 11:52:03 -03:00
Roberto Ierusalimschy
b472098493 concat TM can yield 2008-11-06 10:43:51 -02:00
Roberto Ierusalimschy
84b3daebbd generic for coded as two dedicated instructions to simplify resumption 2008-10-30 13:39:30 -02:00
Roberto Ierusalimschy
f6978173e0 yields accross metamethods and for iterators (except for __concat) 2008-10-28 14:53:16 -02:00
Roberto Ierusalimschy
f94cd2201c better control of call status through CallInfo 2008-08-26 10:27:42 -03:00
Roberto Ierusalimschy
fdbb243ff9 first steps towards yielding through longjump 2008-08-13 14:02:42 -03:00
Roberto Ierusalimschy
e7c989baf1 avoid calling "tail return" hooks if the hook itself turns off the event 2008-01-18 20:36:50 -02:00
Roberto Ierusalimschy
5f4f0d4a63 no more optimization to avoid LOADNIL at function start 2007-03-27 11:11:38 -03:00
Roberto Ierusalimschy
afa0d0ac0d new constant LUA_OK 2006-10-10 14:40:17 -03:00
Roberto Ierusalimschy
d1ef7e0ec6 avoid local "pc" in interpreter loop (tricky optimization with no real gain) 2006-09-19 10:57:50 -03:00
Roberto Ierusalimschy
a7c9e45c64 avoid trailing white spaces 2006-09-11 11:07:24 -03:00
Roberto Ierusalimschy
c473818017 avoid "too complex" conditional expression (some compilers get confused...) 2006-09-11 09:44:56 -03:00
Roberto Ierusalimschy
93bf618504 BUG: there is only one C stack, so nCcalls must be global 2006-08-15 16:59:20 -03:00
Roberto Ierusalimschy
3ca9af51a4 emergency garbage collector (core forces a GC when allocation fails) 2006-07-11 12:53:29 -03:00
Roberto Ierusalimschy
a62fca1ebb BUG: debug hooks may get wrong when mixed with coroutines 2006-06-05 16:36:45 -03:00
Roberto Ierusalimschy
c505f341d6 small changes in casts 2005-12-22 14:19:56 -02:00