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337 Commits

Author SHA1 Message Date
Roberto Ierusalimschy 0bfc572e51 Bug: GC is not reentrant 
As the GC is not reentrant, finalizers should not be able to invoke it.
 2021-12-13 10:41:17 -03:00
Roberto Ierusalimschy deac067ed3 Avoid overflows when incrementing parameters in C 
Any C function can receive maxinteger as an integer argument, and
therefore cannot increment it without some care (e.g., doing unsigned
arithmetic as the core does).
 2021-09-22 13:10:39 -03:00
Roberto Ierusalimschy bf10593a3a Allow yields inside '__pairs' 2021-03-29 12:57:32 -03:00
Roberto Ierusalimschy 59c88f846d Broadening the use of branch hints 
More uses of macros 'likely'/'unlikely' (renamed to
'l_likely'/'l_unlikely'), both in range (extended to the
libraries) and in scope (extended to hooks, stack growth).
 2021-02-24 11:14:44 -03:00
Roberto Ierusalimschy 1f81baffad Janitorial work 
Comments, code details, identation.
 2021-01-25 10:39:18 -03:00
Roberto Ierusalimschy b96b0b5abb Added macro 'luaL_pushfail' 
The macro 'luaL_pushfail' documents all places in the standard libraries
that return nil to signal some kind of failure. It is defined as
'lua_pushnil'. The manual also got a notation (@fail) to document those
returns. The tests were changed to be agnostic regarding whether 'fail'
is 'nil' or 'false'.
 2019-08-16 14:58:02 -03:00
Roberto Ierusalimschy a1d8eb2743 Added control messages to warnings 
Added the concept of control messages to the warning system, plus the
implementation of the controls "@on"/"@off" to turn warnings on/off.
Moreover, the warning system in the test library adds some other
controls to ease the test of warnings.
 2019-08-15 13:44:36 -03:00
Roberto Ierusalimschy 14edd364c3 Function 'warn' is vararg 
Instead of a 'tocont' flag, the function 'warn' in Lua now receives all
message pieces as multiple arguments in a single call. Besides being
simpler to use, this implementation ensures that Lua code cannot create
unfinished warnings.
 2019-06-04 11:22:21 -03:00
Roberto Ierusalimschy 8ba4523ccc 'print' does not call 'tostring' to format its arguments 2019-04-10 12:58:14 -03:00
Roberto Ierusalimschy b56d4e570a Changes in the warning system 
- The warning functions get an extra parameter that tells whether
message is to be continued (instead of using end-of-lines as a signal).

- The user data for the warning function is a regular value, instead
of a writable slot inside the Lua state.
 2019-03-14 15:30:54 -03:00
Roberto Ierusalimschy 437a5b07d4 Added a warning system to Lua 
The warning system is just a way for Lua to emit warnings, messages
to the programmer that do not interfere with the running program.
 2018-12-28 15:42:34 -02:00
Roberto Ierusalimschy 3b06f983ae Details 
- in 'luaB_tonumber', do not need to "checkany" when argument
is a number.

- in 'lua_resume', the call to 'luaD_rawrunprotected' cannot return
a status equal to -1.
 2018-12-11 11:54:14 -02:00
Roberto Ierusalimschy 46beca5bed Better error messages for some polymorphic functions 
New auxiliary functions/macros 'luaL_argexpected'/'luaL_typeerror'
ease the creation of error messages such as

  bad argument #2 to 'setmetatable' (nil or table expected, got boolean)

(The novelty being the "got boolean" part...)
 2018-12-10 13:46:03 -02:00
Roberto Ierusalimschy f99509581e Removed extra information from RCS keyword strings 
Version numbers and dates (mostly wrong) from RCS keyword strings
removed from all source files; only the file name are kept.
 2018-08-23 14:26:12 -03:00
Roberto Ierusalimschy 4a1612ff9b new experimental syntax using reserved word 'undef' 2018-03-07 12:55:38 -03:00
Roberto Ierusalimschy 34b00c16e2 removed compatibility code with older versions 2018-02-27 15:47:32 -03:00
Roberto Ierusalimschy b7edf5d2d8 metamethods for 'removekey'/'keyin' 2018-02-27 14:48:28 -03:00
Roberto Ierusalimschy d766e2ae17 first (parcial) implementation of 'keyin'/'removekey' 
(still no metamethods, no raw verssions)
 2018-02-25 09:48:16 -03:00
Roberto Ierusalimschy 56e50e8bc5 'collectgarbage' returns old mode when changing mode 2018-02-05 15:10:52 -02:00
Roberto Ierusalimschy e4e5aa85a2 detail ('signal' -> 'sign' in comments) 2017-11-16 11:19:06 -02:00
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 72d82a296c revamping the incremental collector 
Some simplifications (not counting bytes, couting only slots visited;
no more 'gcfinnum'); more GC parameters; using vararg in 'lua_gc' to
set parameters in different GC modes
 2017-05-26 16:14:29 -03:00
Roberto Ierusalimschy f5f3df3bd1 generational collection: new attempt (still incomplete) 2017-02-23 18:07:34 -03:00
Roberto Ierusalimschy dbb6f11e8e bug (with compat on): 'ipairs' can work with any type that provides 
an __index; so, 'pairsmeta' should not check for tables. ('pairs'
already checks for tables through 'next'.)
 2016-09-05 16:06:34 -03:00
Roberto Ierusalimschy 82a8e06524 details ('error' does not coerce numbers to strings + comments) 2016-04-11 16:18:40 -03:00
Roberto Ierusalimschy c874abac98 with 'fast tracks', there is no need to do raw accesses in 'ipairs' 2015-10-29 13:21:04 -02:00
Roberto Ierusalimschy 2b1fc1b38c with string cache, it is not that important for 'type' to avoid 
'lua_pushstring'
 2015-06-26 16:25:45 -03:00
Roberto Ierusalimschy e723c75c02 details (avoid 'lint' warnings) 2015-03-28 16:14:47 -03:00
Roberto Ierusalimschy 27ab59bc16 'ipairs' needs an argument 2014-12-10 10:26:42 -02:00
Roberto Ierusalimschy 594d7266af 'assert' checks that it has (at least) one parameter + 'assert' ensures 
it passes only one value to 'error'
 2014-12-08 13:26:55 -02:00
Roberto Ierusalimschy b58602d93d removed unneeded test (result of b_str2int is already checked 
against length)
 2014-11-10 12:25:52 -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 05afee0f50 definitions for 'luai_writestring'/'luai_writeline'/'luai_writestringerror' 
moved to 'lauxlib.h' (they do not need to be stable or configurable) +
prefixes changed from 'luai_' to 'lua_' (they are not part of the core)
 2014-10-29 14:12:30 -02:00
Roberto Ierusalimschy bdf566a8a3 `name' in comments changed to 'name' 2014-10-25 09:50:46 -02:00
Roberto Ierusalimschy 0d31efb365 'lua_stringtonum' -> 'lua_stringtonumber' 2014-10-17 16:17:55 -03:00
Roberto Ierusalimschy f97c64d7bf macros 'LUA_QL'/'LUA_QL' deprecated 2014-10-17 13:28:21 -03:00
Roberto Ierusalimschy 89602bf747 'lua_strtonum' -> 'lua_stringtonum' 2014-10-15 11:27:40 -03:00
Roberto Ierusalimschy 2a21f6c894 'lua_Kcontext' -> 'lua_KContext' 2014-10-07 15:29:13 -03:00
Roberto Ierusalimschy 798660c9cd deprecated "cast macros" ('luaL_checkint', 'luaL_optint', etc.) 2014-10-01 08:54:56 -03:00
Roberto Ierusalimschy d35fff16d5 'ipairs' always stops at first nil element 2014-09-30 10:53:26 -03:00
Roberto Ierusalimschy 6384475ec4 'luaL_getmetafield' returns type of metafield (instead of a boolean) 2014-09-22 03:42:15 -03:00
Roberto Ierusalimschy 7f1a2ad699 new functions 'lua_geti/lua_seti' (non raw) 2014-08-21 17:07:56 -03:00
Roberto Ierusalimschy 2be88d5084 'lua_Ctx' -> 'lua_Kcontext' 2014-08-01 14:33:08 -03:00
Roberto Ierusalimschy 61fa462535 added cast to avoid warning 2014-08-01 14:22:57 -03:00
Roberto Ierusalimschy f9037ae8c1 'ipairs' respects metamethods 2014-07-24 16:33:29 -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 16b4110521 function 'type' keeps type names as upvalues to avoid creating strings 
everytime it is called
 2014-07-16 10:56:59 -03:00
Roberto Ierusalimschy b9dcf9974d detail (typos in comments) 2014-06-30 16:48:08 -03:00
Roberto Ierusalimschy 6f6fd96e3b new type lua_KFunction + no more 'lua_getctx' 2014-06-10 14:41:38 -03:00
Roberto Ierusalimschy 9e68c047ae 'assert' does not assume that the error object is a string 2014-06-02 00:06:26 -03:00