opensources/lua - lua - Gitea: Git with home nas server

Commit Graph

Author	SHA1	Message	Date
Roberto Ierusalimschy	c6cea857a4	Better documentation for 'multires' expressions Manual has a new section explaining multires expressions, lists of expressions, and adjustments. This commit also corrects some comments in the code.	2 years ago
Roberto Ierusalimschy	439e45a2f6	Bug: luaL_tolstring may get confused with negative index When object has a '__name' metafield, 'luaL_tolstring' used the received index after pushing a string on the stack.	3 years ago
Roberto Ierusalimschy	cf23a93d82	Added assertions for proper use of string buffers	4 years ago
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).	4 years ago
Roberto Ierusalimschy	cc1692515e	New API function 'lua_closeslot' Closing a to-be-closed variable with 'lua_settop' is too restrictive, as it erases all slots above the variable. Moreover, it adds side effects to 'lua_settop', which should be a fairly basic function.	4 years ago
Roberto Ierusalimschy	c36ced53c9	Avoid "bad programming habits" in the reference system References were using both 0 indices and nils as values in arrays. Both do not fit in the concept of a sequence, which is the kind of use that guides all Lua optimizations.	4 years ago
Roberto Ierusalimschy	58216600eb	'luaL_newstate' should not allocate extra memory The allocation of a userdata for the state of the warn system can cause a panic if it fails; 'luaL_ref' also can fail. This commit re-implements the warn system so that it does not need an explicit state. Instead, the system uses different functions to represent the different states.	4 years ago
Roberto Ierusalimschy	b57574d6fb	Keep memory errors as memory errors Allow memory errors to be raised through the API (throwing the error with the memory error message); error in external allocations raises a memory error; memory errors in coroutines are re-raised as memory errors.	4 years ago
Roberto Ierusalimschy	364e569945	Avoid calling 'fprintf' with NULL Avoid undefined behavior in calls like «fprintf("%s", NULL)». ('lua_writestringerror' is implemented as 'fprintf', and 'lua_tostring' can return NULL if object is not a string.)	4 years ago
Roberto Ierusalimschy	aa8d4a782d	Details (more uniformity in error messages)	5 years ago
Roberto Ierusalimschy	efcf24be0c	'luaL_execresult' does not assume -1 status as error ISO C is silent about the return of 'system'. Windows sets 'errno' in case of errors. Linux has several different error cases, with different return values. ISO C allows 'system' to set 'errno' even if there are no errors. Here we assume that a status==0 is success (which is the case on several platforms), otherwise it is an error. If there is an error number, gives the error based on it. (The worst a spurious 'errno' can do is to generate a bad error message.) Otherwise uses the normal results.	5 years ago
Roberto Ierusalimschy	0be57b9b6d	Details in comments	5 years ago
Roberto Ierusalimschy	6eb53b7526	Details Several details in code (e.g., moving a variable to the most inner scope that encloses its uses), comments, parameter names, extra tests.	5 years ago
Roberto Ierusalimschy	be78aeae4c	Default for warnings changed to "off" Warnings are mostly a tool to help developers (e.g., by showing hidden error messages); regular users usually don't need to see them.	5 years ago
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'.	5 years ago
Roberto Ierusalimschy	ca13be9af7	Supressed errors in '__close' generate warnings	5 years ago
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.	5 years ago
Roberto Ierusalimschy	e888976bc6	Details (typos in comments)	5 years ago
Roberto Ierusalimschy	2b8b53864c	Improvements in 'luaL_traceback' 'luaL_traceback' changed to use an aux buffer instead of concats. This should reduce the quantity of garbage it generates (in the form of intermediate strings) while producing a trackback. It also added information about the number of levels skipped when skipping levels in a trace.	6 years ago
Roberto Ierusalimschy	0b63d79b36	Details - 'luaL_setfuncs' avoids creating closures for placeholders. - Fixed some warnings about unused values in comma expressions. - Comments.	6 years ago
Roberto Ierusalimschy	c65605151c	New function 'luaL_addgsub' Added a new function 'luaL_addgsub', similar to 'luaL_gsub' but that adds its result directly to a preexisting buffer, avoiding the creation of one extra intermediate string. Also added two simple macros, 'luaL_bufflen' and 'luaL_buffaddr', to query the current length and the contents address of a buffer.	6 years ago
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.	6 years ago
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.	6 years ago
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...)	6 years ago
Roberto Ierusalimschy	7696c6474f	Auxiliary buffer cannot close box with 'lua_remove' To remove a to-be-closed variable from the stack in the C API a function must use 'lua_settop' or 'lua_pop'. Previous implementation of 'luaL_pushresult' was not closing the box. (This commit also added tests to check that box is being closed "as soon as possible".)	6 years ago
Roberto Ierusalimschy	8cb84210ab	String buffer using to-be-closed variable The string buffers in the C API now mark their boxes as to-be-closed variables, to release their buffers in case of errors.	6 years ago
Roberto Ierusalimschy	9eafe9c053	New implementation for 'luaL_addvalue' The function 'luaL_addvalue' (from the buffer system) was rewritten so that it does not change the position of the box (if present) in the stack.	6 years ago
Roberto Ierusalimschy	2fc6b55dae	Removed resource-related "emergency collections" New to-be-closed variables is a better way to ensure the proper release of resources.	6 years ago
Roberto Ierusalimschy	3d838f635c	Added "emergency collection" to 'io.tmpfile' and 'os.tmpname' These operations also can give errors for lack of resources, so they also will try "emergency collections" in case of resource errors. Because there are now two libraries with that kind of handling, 'resourcetryagain' was moved to the auxiliary library to be shared by the libraries.	6 years ago
Roberto Ierusalimschy	af70905246	no need to check whether libraries and host use the same kernel; Lua should work correctly with several copies of the kernel	6 years ago
Roberto Ierusalimschy	34b00c16e2	removed compatibility code with older versions	7 years ago
Roberto Ierusalimschy	c67603fafb	using new 'lua_newuserdatauv' instead of 'lua_newuserdata'	7 years ago
Roberto Ierusalimschy	90569630d6	detail (uses a reserved-format name for an internal type in the registry)	7 years ago
Roberto Ierusalimschy	5a1c8d8ef3	new constant 'LUA_GNAME' for the name of the global table "_G"	7 years ago
Roberto Ierusalimschy	2caecf1b3e	type 'L_Umaxalign' replaced by macro 'LUAI_MAXALIGN', which is also added to the auxlib buffer	8 years ago
Roberto Ierusalimschy	9903dd52a3	Using LUAI_UAC* types more consistently on vararg calls	8 years ago
Roberto Ierusalimschy	b2aa2ba046	using constants for "_LOADED" and "PRELOAD"	8 years ago
Roberto Ierusalimschy	beec5af201	'luaL_tolstring' uses metatable's "__name" when available	8 years ago
Roberto Ierusalimschy	62f6652d53	no more extra space in 'luaL_checkstack'. (It was already useless for the first call, and function works ok without that space anyway (just error message misses the 'msg' component)	9 years ago
Roberto Ierusalimschy	bda090b961	comments + small code changes around stack usage when 'luaL_checkstack' raises an error (and needs the stack to create the error message...)	9 years ago
Roberto Ierusalimschy	d103312661	details (typos in comments)	9 years ago
Roberto Ierusalimschy	8949904783	allow NULL string when length is zero in 'lua_pushlstring' and 'luaL_addlstring'	9 years ago
Roberto Ierusalimschy	e290bd6760	in 'luaL_traceback', print correct number of levels even when initial level is not 1.	9 years ago
Roberto Ierusalimschy	e7f34ad395	better implementation for buffers (reallocated memory directly with allocation function; generates much less garbage)	10 years ago
Roberto Ierusalimschy	90d016980f	detail ('luaL_getmetatable' does not return a boolean, but a tag)	10 years ago
Roberto Ierusalimschy	151dc5cc5f	traverse loaded modules (instead of globals) for a name for a function + removes prefix '_G.' from names (if present)	10 years ago
Roberto Ierusalimschy	c8da3fbc35	in traceback names, give preference to 'name' over '_G.name'	10 years ago
Roberto Ierusalimschy	6f54b07663	give preference to global names in tracebacks	10 years ago
Roberto Ierusalimschy	ab4a890d04	use 'namewhat' when building a traceback	10 years ago
Roberto Ierusalimschy	db5ac2fa0d	detail (buffer in 'LoadF' is related to files)	10 years ago

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324 Commits (a1f77a234a053da46b06d5d4be00ffb30d3eb45b)