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Optimization for vararg tables

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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.
This commit is contained in:
Roberto I
2025-09-24 18:33:08 -03:00
parent 0cc3c9447c
commit 25c54fe60e
13 changed files with 186 additions and 63 deletions
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6
testes/locals.lua
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@@ -310,8 +310,7 @@ do -- testing presence of second argument
local function foo (howtoclose, obj, n)
local ca -- copy of 'a' visible inside its close metamethod
do
local a <close> = func2close(function (...)
local t = table.pack(...)
local a <close> = func2close(function (... | t)
assert(select("#", ...) == n)
assert(t.n == n and t[1] == ca and (t.n < 2 or t[2] == obj))
ca = 15 -- final value to be returned if howtoclose=="scope"
@@ -911,8 +910,7 @@ do
local extrares -- result from extra yield (if any)
local function check (body, extra, ...)
local t = table.pack(...) -- expected returns
local function check (body, extra, ...|t)
local co = coroutine.wrap(body)
if extra then
extrares = co() -- runs until first (extra) yield