lua/lvm.c, branch v5.5.1A mirror of https://github.com/lua/lua
https://git.lua4.win/lua/atom?h=v5.5.12026-07-22T16:43:40+00:00Details2026-07-22T16:43:40+00:00Roberto Iroberto@inf.puc-rio.br2026-07-22T16:43:40+00:00urn:sha1:d5bbe955840c5c83e37ed19df4d392d7ba0970ed
- Some api_checknelems changed to the more restrict api_checkpop.
- Added a class to the html for APIs in the manual.
- Comments and manual.
Bug: Issues with write barrier for __newindex2026-07-12T17:57:55+00:00Roberto Iroberto@inf.puc-rio.br2026-07-12T17:57:55+00:00urn:sha1:b996f8fd1be7fb711cc6f754a31a1c87d2c2fd9b
In 'luaV_finishset', there is an update on a table that is a field on
another table. If the first table is the same as the one with the field
(e.g., after 't.__newindex = t'), the update can change the value on
that field (e.g., there may be a collision and the field is moved, or
the field being updated is '__newindex' itself). After that, the
barrier is called with the table stored in that field, which is not
the correct table anymore.
new macro 'setnilvalue2s'2026-04-23T21:00:23+00:00Roberto Iroberto@inf.puc-rio.br2026-04-23T21:00:23+00:00urn:sha1:ae23e726018bd31a25c1279600328d90207ec81cAdjustment in useless parameter L in macros luai_num*2026-03-15T18:14:14+00:00Roberto Iroberto@inf.puc-rio.br2026-03-15T18:14:14+00:00urn:sha1:51269bd783c9371252947b26cc865239dbb0153dNew conceptual model for vararg2025-11-26T14:18:29+00:00Roberto Iroberto@inf.puc-rio.br2025-11-26T14:18:29+00:00urn:sha1:f33cc4ddec886ea499d7d41dd60cac5ddc5687db
Conceptually, all functions get their vararg arguments in a vararg
table. The storing of vararg arguments in the stack is always treated
as an optimization.
External strings are as good as internal ones2025-11-11T17:40:30+00:00Roberto Iroberto@inf.puc-rio.br2025-11-11T17:40:30+00:00urn:sha1:5b7d9987642f72d44223a8e5e79e013bb2b3d579
A '__mode' metafield and an "n" key both can be external strings.
Global initialization checks name conflict2025-11-08T14:43:42+00:00Roberto Iroberto@inf.puc-rio.br2025-11-08T14:43:42+00:00urn:sha1:e44f3a2ffc7ced5e75cca7657aaa60ef27da89aa
Initialization "global a = 10" raises an error if global 'a' is already
defined, that is, it has a non-nil value.
Details2025-10-31T17:48:55+00:00Roberto Iroberto@inf.puc-rio.br2025-10-31T17:48:55+00:00urn:sha1:f791bb69061c15f73395c5a95958ac18af5ef764
- New macro l_strcoll to ease changing 'strcoll' to something else.
- MAXINDEXRK==1 in 'ltests.h' is enough to run test 'code.lua'.
- Removed unused '#include' in 'lutf8lib.c'.
Optimization for vararg tables2025-09-24T21:33:08+00:00Roberto Iroberto@inf.puc-rio.br2025-09-24T21:33:08+00:00urn:sha1:25c54fe60e22d05cdfaa48c64372d354efa59547
A vararg table can be virtual. If the vararg table is used only as
a base in indexing expressions, the code does not need to create an
actual table for it. Instead, it compiles the indexing expressions
into direct accesses to the internal vararg data.
Vararg table2025-09-16T16:26:24+00:00Roberto Iroberto@inf.puc-rio.br2025-09-16T16:26:24+00:00urn:sha1:140b672e2ee2ac842661ece4b48e1a64f0cd11ea
Not yet optimized nor documented.