while (lua_next(L, -2)) { // stack now contains: -1 => value; -2 => key; -3 => table // copy the key so that lua_tostring does not modify the original lua_pushvalue(L, -2); // stack now contains: -1 => key; -2 =
Original List 1 2 3 4 5 lua: main.lua:19: attempt to update a read-only table stack traceback: [C]: in function 'error' main.lua:49: in metamethod 'newindex' main.lua:19: in method 'push' main.lua:66: in main chunk [C]: in ?
table.foreachi( args, LuaUnit.runTestClassByName ) else if argv and #argv > 0 then table.foreachi(argv, LuaUnit.runTestClassByName ) else -- create the list before. If you do not do it now, you -- get undefined result because you modify _G while iterating ...
lua_pushnil(L); // stack now contains: -1 => nil; -2 => table while(lua_next(L,-2)) { // stack now contains: -1 => value; -2 => key; -3 => table // copy the key so that lua_tostring does not modify the original lua_pushvalue(L,-2); // stack now contains: -1 ...
Lua supports Object Oriented Programming by the concept of Table and first class functions. An object is having a state and functions to modify the state. In similar fashion, table can have state and function. But two tables with same values are different objects. Using metatables, we can ...
When iterating over all keys of the global table, Lanes has no guarantee that it will hit "string" before or after "string2". However, the values associated to string.match and string2.match are the same C function. Lanes doesn't expect a C function value to be encountered more than ...
However, any attempt to -- modify the table by that method (e.g., __newindex = rawset) will lead to an -- error being thrown. -- -- Finally, tables with 'protected' metatables, i.e., a '__metatable' field, -- cannot be frozen. t = table.freeze(t) -- Return true if ...
When we say “all code paths”, we actually mean it from a statistical perspective instead of literally iterating through every single code path in a program. Obviously the latter would be prohibitively expensive to do in reality due to combinatorial explosions. We just make sure all code paths...
Table constructor Tables are references Arrays Array constructor Arrays are one-based Sparse arrays The size of an array Multidimensional arrays Iterating Understanding pairs Understanding ipairs Closures Iterator functions Meta tables setmetatable getmetatable __index __newindex rawget and rawset __call Op...
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