lobject.h /* ** Upvalues */ typedef struct UpVal { CommonHeader; TValue *v; /* points to stack or to its own value */ union { TValue value; /* the value (when closed) */ struct { /* double linked list (when open) */ struct UpVal *prev; str…

lobject.h /* ** Function Prototypes */ typedef struct Proto { CommonHeader; TValue *k; /* constants used by the function */ Instruction *code; struct Proto **p; /* functions defined inside the function */ int *lineinfo; /* map from opcodes…

lobject.h /* ** Closures */ #define ClosureHeader \ CommonHeader; lu_byte isC; lu_byte nupvalues; GCObject *gclist; \ struct Table *env typedef struct CClosure { ClosureHeader; lua_CFunction f; TValue upvalue[1]; } CClosure; typedef struct…

lgc.h #define luaC_checkGC(L) { \ condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1)); \ if (G(L)->totalbytes >= G(L)->GCthreshold) \ luaC_step(L); } 総アロケート量が閾値を超えているときにGCステップの呼び出し。超えてな…

lmem.c /* ** generic allocation routine. */ void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) { global_State *g = G(L); lua_assert((osize == 0) == (block == NULL)); block = (*g->frealloc)(g->ud, block, osize, nsiz…