tree 294645bf9a85557026d8c99d74c2eac50a74302e
parent 3699446aaf5c7a07af028b1ae43cf52d2d4dda59
author Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1635525684 -0300
committer Roberto Ierusalimschy <roberto@inf.puc-rio.br> 1635525684 -0300

More uniform implementation for tail calls

'luaD_pretailcall' mimics 'luaD_precall', handling call metamethods
and calling C functions directly. That makes the code in the
interpreter loop simpler.

This commit also goes back to emulating the tail call in 'luaD_precall'
with a goto, as C compilers may not do proper tail calls and the C
stack can overflow much sooner than the Lua stack (which grows as the
metamethod is added to it).