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/* This file is derived from the Lua source code. Please see lua.h for
the copyright statement.
*/
#include "pdep/pdep.h"
#define api_incr_top(L) {api_check(L, L->top < L->ci->top); L->top++;}
void pdep_pushobject (lua_State *L, const TValue *o) {
setobj2s(L, L->top, o);
api_incr_top(L);
}
void *pdep_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, nsize);
lua_assert((nsize == 0) == (block == NULL));
g->totalbytes = (g->totalbytes - osize) + nsize;
return block;
}
void pdep_link (lua_State *L, GCObject *o, lu_byte tt) {
global_State *g = G(L);
o->gch.next = g->rootgc;
g->rootgc = o;
o->gch.marked = luaC_white(g);
o->gch.tt = tt;
}
Proto *pdep_newproto (lua_State *L) {
Proto *f = pdep_new(L, Proto);
pdep_link(L, obj2gco(f), LUA_TPROTO);
f->k = NULL;
f->sizek = 0;
f->p = NULL;
f->sizep = 0;
f->code = NULL;
f->sizecode = 0;
f->sizelineinfo = 0;
f->sizeupvalues = 0;
f->nups = 0;
f->upvalues = NULL;
f->numparams = 0;
f->is_vararg = 0;
f->maxstacksize = 0;
f->lineinfo = NULL;
f->sizelocvars = 0;
f->locvars = NULL;
f->linedefined = 0;
f->lastlinedefined = 0;
f->source = NULL;
return f;
}
Closure *pdep_newLclosure (lua_State *L, int nelems, Table *e) {
Closure *c = cast(Closure *, pdep_malloc(L, sizeLclosure(nelems)));
pdep_link(L, obj2gco(c), LUA_TFUNCTION);
c->l.isC = 0;
c->l.env = e;
c->l.nupvalues = cast_byte(nelems);
while (nelems--) c->l.upvals[nelems] = NULL;
return c;
}
static void correctstack (lua_State *L, TValue *oldstack) {
CallInfo *ci;
GCObject *up;
L->top = (L->top - oldstack) + L->stack;
for (up = L->openupval; up != NULL; up = up->gch.next)
gco2uv(up)->v = (gco2uv(up)->v - oldstack) + L->stack;
for (ci = L->base_ci; ci <= L->ci; ci++) {
ci->top = (ci->top - oldstack) + L->stack;
ci->base = (ci->base - oldstack) + L->stack;
ci->func = (ci->func - oldstack) + L->stack;
}
L->base = (L->base - oldstack) + L->stack;
}
void pdep_reallocstack (lua_State *L, int newsize) {
TValue *oldstack = L->stack;
int realsize = newsize + 1 + EXTRA_STACK;
lua_assert(L->stack_last - L->stack == L->stacksize - EXTRA_STACK - 1);
pdep_reallocvector(L, L->stack, L->stacksize, realsize, TValue);
L->stacksize = realsize;
L->stack_last = L->stack+newsize;
correctstack(L, oldstack);
}
void pdep_growstack (lua_State *L, int n) {
if (n <= L->stacksize) /* double size is enough? */
pdep_reallocstack(L, 2*L->stacksize);
else
pdep_reallocstack(L, L->stacksize + n);
}
void pdep_reallocCI (lua_State *L, int newsize) {
CallInfo *oldci = L->base_ci;
pdep_reallocvector(L, L->base_ci, L->size_ci, newsize, CallInfo);
L->size_ci = newsize;
L->ci = (L->ci - oldci) + L->base_ci;
L->end_ci = L->base_ci + L->size_ci - 1;
}
TString *pdep_newlstr (lua_State *L, const char *str, size_t l) {
TString *res;
lua_pushlstring(L, str, l);
res = rawtsvalue(L->top-1);
lua_pop(L, 1);
return res;
}