A mirror of https://github.com/lua/lua https://git.lua4.win/lua/atom?h=v5.4.9 2022-11-08T13:15:10+00:00 2022-11-08T13:15:10+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2022-11-08T13:15:10+00:00 urn:sha1:be908a7d4d8130264ad67c5789169769f824c5d1 2022-10-29T15:06:37+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2022-10-29T15:06:37+00:00 urn:sha1:413a393e6222482f46599e138bebac162610a572 That will allow to change pointers to offsets while reallocating the stack. 2022-08-19T17:10:18+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2022-08-19T17:10:18+00:00 urn:sha1:c6cea857a4845940c833e39a149d20bb64a9af85 Manual has a new section explaining multires expressions, lists of expressions, and adjustments. This commit also corrects some comments in the code. 2022-05-25T20:41:39+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2022-05-25T20:41:39+00:00 urn:sha1:196bb94d66e727e0aec053a0276c3ad701500762 2021-03-10T13:27:19+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2021-03-10T13:27:19+00:00 urn:sha1:81c6021fb40a254d9a586b0cb53453bba8973d80 - Fixes a bug, by removing dummy nodes together with the node itself. (The previous implementation could leave dummy nodes in frames which otherwise had no tbc variables, and therefore would not close variables; that could leave 'tbclist' pointing higher than 'top', which could dangle if the stack shrank.) - Computes MAXDELTA based on the type of delta, to ease changing its type if needed. - Instead of 'isdummy', uses 'delta==0' to signal dummy nodes. (Dummy nodes always have MAXDELTA for their real delta.) 2021-02-09T17:00:05+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2021-02-09T17:00:05+00:00 urn:sha1:4e47f81188d37e29027158b76271d02a781242e2 To-be-closed variables are linked in their own list, embedded into the stack elements. (Due to alignment, this information does not change the size of the stack elements in most architectures.) This new list does not produce garbage and avoids memory errors when creating tbc variables. 2021-02-05T14:00:28+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2021-02-05T14:00:28+00:00 urn:sha1:2bfa13e520e53210b96ead88f49a9ca20c5a5d18 Long time without using HARDSTACKTESTS... 2021-01-19T13:03:13+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2021-01-19T13:03:13+00:00 urn:sha1:6ccd24eff58340c00db2877c4558a63c6b859442 New field 'lua_State.ptbc' keeps to-be-closed variable until its upvalue is created, so that it can be closed in case of a memory-allocation error. 2021-01-13T16:54:10+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2021-01-13T16:54:10+00:00 urn:sha1:b07fc10e91a5954254b47280aba287220c734a4b Initial implementation to allow yields inside '__close' metamethods. This current version still does not allow a '__close' metamethod to yield when called due to an error. '__close' metamethods from C functions also are not allowed to yield. 2020-12-29T13:23:02+00:00 Roberto Ierusalimschy roberto@inf.puc-rio.br 2020-12-29T13:23:02+00:00 urn:sha1:59e565d9555c07e82808d8c1db8f4f4d159b5e5c A to-be-closed variable is constant and it must have a close metamethod when it is created. A program has to go out of its way (e.g., by changing the variable's metamethod) to invalidate that check. So, it is not worth to test that again. If the program tampers with the metamethod, Lua will raise a regular error when attempting to call it.