mirror of
https://github.com/holub/mame
synced 2025-05-12 00:58:53 +03:00
b5475eb38b
Compile Lua as C++. When Lua is compiled as C, it uses setjmp/longjmp for error handling, resulting in failure to unwind intermediate stack frames. Trying to ensure no objects with non-trivial destructors are in scope when raising a Lua error is error-prone. In particular, converting an exception to a Lua error becomes convoluted, and raising a Lua error from a constructor is effectively impossible. Updated Lua to 5.4.4 - this includes a brand-new garbage collector implementation with better performance. The main thing removed is the deprecated bitlib. Updated sol2 to version 3.3.0 - this adds support for Lua 5.4 and fixes a number of issues, including not correctly handling errors when Lua is built as C++. Updated LuaFileSystem to version 1.8.0 - this adds support for symbolic links on Windows, as well as Lua 5.4 compatibility. Updated LuaSQLite3 to version 0.9.5 - this fixes issues in multi-threaded environments, as well as Lua 5.4 compatibility. Fixed double-free after attempting to construct a debugger expression from Lua with an invalid string, and exposed expression error to Lua in a better way. Added warning level print function to Lua. Fixed saving cheats with shift operators in expressions, although this code isn't actually used as there's no cheat editor.
58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
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** $Id: lstring.h $
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** String table (keep all strings handled by Lua)
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** See Copyright Notice in lua.h
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*/
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#ifndef lstring_h
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#define lstring_h
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#include "lgc.h"
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#include "lobject.h"
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#include "lstate.h"
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/*
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** Memory-allocation error message must be preallocated (it cannot
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** be created after memory is exhausted)
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*/
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#define MEMERRMSG "not enough memory"
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/*
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** Size of a TString: Size of the header plus space for the string
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** itself (including final '\0').
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*/
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#define sizelstring(l) (offsetof(TString, contents) + ((l) + 1) * sizeof(char))
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#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \
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(sizeof(s)/sizeof(char))-1))
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/*
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** test whether a string is a reserved word
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*/
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#define isreserved(s) ((s)->tt == LUA_VSHRSTR && (s)->extra > 0)
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/*
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** equality for short strings, which are always internalized
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*/
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#define eqshrstr(a,b) check_exp((a)->tt == LUA_VSHRSTR, (a) == (b))
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LUAI_FUNC unsigned int luaS_hash (const char *str, size_t l, unsigned int seed);
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LUAI_FUNC unsigned int luaS_hashlongstr (TString *ts);
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LUAI_FUNC int luaS_eqlngstr (TString *a, TString *b);
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LUAI_FUNC void luaS_resize (lua_State *L, int newsize);
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LUAI_FUNC void luaS_clearcache (global_State *g);
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LUAI_FUNC void luaS_init (lua_State *L);
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LUAI_FUNC void luaS_remove (lua_State *L, TString *ts);
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LUAI_FUNC Udata *luaS_newudata (lua_State *L, size_t s, int nuvalue);
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LUAI_FUNC TString *luaS_newlstr (lua_State *L, const char *str, size_t l);
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LUAI_FUNC TString *luaS_new (lua_State *L, const char *str);
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LUAI_FUNC TString *luaS_createlngstrobj (lua_State *L, size_t l);
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#endif
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