diff options
Diffstat (limited to 'lib/LuaJIT/src/lib_table.c')
-rw-r--r-- | lib/LuaJIT/src/lib_table.c | 327 |
1 files changed, 0 insertions, 327 deletions
diff --git a/lib/LuaJIT/src/lib_table.c b/lib/LuaJIT/src/lib_table.c deleted file mode 100644 index 0450f1f..0000000 --- a/lib/LuaJIT/src/lib_table.c +++ /dev/null @@ -1,327 +0,0 @@ -/* -** Table library. -** Copyright (C) 2005-2017 Mike Pall. See Copyright Notice in luajit.h -** -** Major portions taken verbatim or adapted from the Lua interpreter. -** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h -*/ - -#define lib_table_c -#define LUA_LIB - -#include "lua.h" -#include "lauxlib.h" -#include "lualib.h" - -#include "lj_obj.h" -#include "lj_gc.h" -#include "lj_err.h" -#include "lj_buf.h" -#include "lj_tab.h" -#include "lj_ff.h" -#include "lj_lib.h" - -/* ------------------------------------------------------------------------ */ - -#define LJLIB_MODULE_table - -LJLIB_LUA(table_foreachi) /* - function(t, f) - CHECK_tab(t) - CHECK_func(f) - for i=1,#t do - local r = f(i, t[i]) - if r ~= nil then return r end - end - end -*/ - -LJLIB_LUA(table_foreach) /* - function(t, f) - CHECK_tab(t) - CHECK_func(f) - for k, v in PAIRS(t) do - local r = f(k, v) - if r ~= nil then return r end - end - end -*/ - -LJLIB_LUA(table_getn) /* - function(t) - CHECK_tab(t) - return #t - end -*/ - -LJLIB_CF(table_maxn) -{ - GCtab *t = lj_lib_checktab(L, 1); - TValue *array = tvref(t->array); - Node *node; - lua_Number m = 0; - ptrdiff_t i; - for (i = (ptrdiff_t)t->asize - 1; i >= 0; i--) - if (!tvisnil(&array[i])) { - m = (lua_Number)(int32_t)i; - break; - } - node = noderef(t->node); - for (i = (ptrdiff_t)t->hmask; i >= 0; i--) - if (!tvisnil(&node[i].val) && tvisnumber(&node[i].key)) { - lua_Number n = numberVnum(&node[i].key); - if (n > m) m = n; - } - setnumV(L->top-1, m); - return 1; -} - -LJLIB_CF(table_insert) LJLIB_REC(.) -{ - GCtab *t = lj_lib_checktab(L, 1); - int32_t n, i = (int32_t)lj_tab_len(t) + 1; - int nargs = (int)((char *)L->top - (char *)L->base); - if (nargs != 2*sizeof(TValue)) { - if (nargs != 3*sizeof(TValue)) - lj_err_caller(L, LJ_ERR_TABINS); - /* NOBARRIER: This just moves existing elements around. */ - for (n = lj_lib_checkint(L, 2); i > n; i--) { - /* The set may invalidate the get pointer, so need to do it first! */ - TValue *dst = lj_tab_setint(L, t, i); - cTValue *src = lj_tab_getint(t, i-1); - if (src) { - copyTV(L, dst, src); - } else { - setnilV(dst); - } - } - i = n; - } - { - TValue *dst = lj_tab_setint(L, t, i); - copyTV(L, dst, L->top-1); /* Set new value. */ - lj_gc_barriert(L, t, dst); - } - return 0; -} - -LJLIB_LUA(table_remove) /* - function(t, pos) - CHECK_tab(t) - local len = #t - if pos == nil then - if len ~= 0 then - local old = t[len] - t[len] = nil - return old - end - else - CHECK_int(pos) - if pos >= 1 and pos <= len then - local old = t[pos] - for i=pos+1,len do - t[i-1] = t[i] - end - t[len] = nil - return old - end - end - end -*/ - -LJLIB_LUA(table_move) /* - function(a1, f, e, t, a2) - CHECK_tab(a1) - CHECK_int(f) - CHECK_int(e) - CHECK_int(t) - if a2 == nil then a2 = a1 end - CHECK_tab(a2) - if e >= f then - local d = t - f - if t > e or t <= f or a2 ~= a1 then - for i=f,e do a2[i+d] = a1[i] end - else - for i=e,f,-1 do a2[i+d] = a1[i] end - end - end - return a2 - end -*/ - -LJLIB_CF(table_concat) LJLIB_REC(.) -{ - GCtab *t = lj_lib_checktab(L, 1); - GCstr *sep = lj_lib_optstr(L, 2); - int32_t i = lj_lib_optint(L, 3, 1); - int32_t e = (L->base+3 < L->top && !tvisnil(L->base+3)) ? - lj_lib_checkint(L, 4) : (int32_t)lj_tab_len(t); - SBuf *sb = lj_buf_tmp_(L); - SBuf *sbx = lj_buf_puttab(sb, t, sep, i, e); - if (LJ_UNLIKELY(!sbx)) { /* Error: bad element type. */ - int32_t idx = (int32_t)(intptr_t)sbufP(sb); - cTValue *o = lj_tab_getint(t, idx); - lj_err_callerv(L, LJ_ERR_TABCAT, - lj_obj_itypename[o ? itypemap(o) : ~LJ_TNIL], idx); - } - setstrV(L, L->top-1, lj_buf_str(L, sbx)); - lj_gc_check(L); - return 1; -} - -/* ------------------------------------------------------------------------ */ - -static void set2(lua_State *L, int i, int j) -{ - lua_rawseti(L, 1, i); - lua_rawseti(L, 1, j); -} - -static int sort_comp(lua_State *L, int a, int b) -{ - if (!lua_isnil(L, 2)) { /* function? */ - int res; - lua_pushvalue(L, 2); - lua_pushvalue(L, a-1); /* -1 to compensate function */ - lua_pushvalue(L, b-2); /* -2 to compensate function and `a' */ - lua_call(L, 2, 1); - res = lua_toboolean(L, -1); - lua_pop(L, 1); - return res; - } else { /* a < b? */ - return lua_lessthan(L, a, b); - } -} - -static void auxsort(lua_State *L, int l, int u) -{ - while (l < u) { /* for tail recursion */ - int i, j; - /* sort elements a[l], a[(l+u)/2] and a[u] */ - lua_rawgeti(L, 1, l); - lua_rawgeti(L, 1, u); - if (sort_comp(L, -1, -2)) /* a[u] < a[l]? */ - set2(L, l, u); /* swap a[l] - a[u] */ - else - lua_pop(L, 2); - if (u-l == 1) break; /* only 2 elements */ - i = (l+u)/2; - lua_rawgeti(L, 1, i); - lua_rawgeti(L, 1, l); - if (sort_comp(L, -2, -1)) { /* a[i]<a[l]? */ - set2(L, i, l); - } else { - lua_pop(L, 1); /* remove a[l] */ - lua_rawgeti(L, 1, u); - if (sort_comp(L, -1, -2)) /* a[u]<a[i]? */ - set2(L, i, u); - else - lua_pop(L, 2); - } - if (u-l == 2) break; /* only 3 elements */ - lua_rawgeti(L, 1, i); /* Pivot */ - lua_pushvalue(L, -1); - lua_rawgeti(L, 1, u-1); - set2(L, i, u-1); - /* a[l] <= P == a[u-1] <= a[u], only need to sort from l+1 to u-2 */ - i = l; j = u-1; - for (;;) { /* invariant: a[l..i] <= P <= a[j..u] */ - /* repeat ++i until a[i] >= P */ - while (lua_rawgeti(L, 1, ++i), sort_comp(L, -1, -2)) { - if (i>=u) lj_err_caller(L, LJ_ERR_TABSORT); - lua_pop(L, 1); /* remove a[i] */ - } - /* repeat --j until a[j] <= P */ - while (lua_rawgeti(L, 1, --j), sort_comp(L, -3, -1)) { - if (j<=l) lj_err_caller(L, LJ_ERR_TABSORT); - lua_pop(L, 1); /* remove a[j] */ - } - if (j<i) { - lua_pop(L, 3); /* pop pivot, a[i], a[j] */ - break; - } - set2(L, i, j); - } - lua_rawgeti(L, 1, u-1); - lua_rawgeti(L, 1, i); - set2(L, u-1, i); /* swap pivot (a[u-1]) with a[i] */ - /* a[l..i-1] <= a[i] == P <= a[i+1..u] */ - /* adjust so that smaller half is in [j..i] and larger one in [l..u] */ - if (i-l < u-i) { - j=l; i=i-1; l=i+2; - } else { - j=i+1; i=u; u=j-2; - } - auxsort(L, j, i); /* call recursively the smaller one */ - } /* repeat the routine for the larger one */ -} - -LJLIB_CF(table_sort) -{ - GCtab *t = lj_lib_checktab(L, 1); - int32_t n = (int32_t)lj_tab_len(t); - lua_settop(L, 2); - if (!tvisnil(L->base+1)) - lj_lib_checkfunc(L, 2); - auxsort(L, 1, n); - return 0; -} - -#if LJ_52 -LJLIB_PUSH("n") -LJLIB_CF(table_pack) -{ - TValue *array, *base = L->base; - MSize i, n = (uint32_t)(L->top - base); - GCtab *t = lj_tab_new(L, n ? n+1 : 0, 1); - /* NOBARRIER: The table is new (marked white). */ - setintV(lj_tab_setstr(L, t, strV(lj_lib_upvalue(L, 1))), (int32_t)n); - for (array = tvref(t->array) + 1, i = 0; i < n; i++) - copyTV(L, &array[i], &base[i]); - settabV(L, base, t); - L->top = base+1; - lj_gc_check(L); - return 1; -} -#endif - -LJLIB_NOREG LJLIB_CF(table_new) LJLIB_REC(.) -{ - int32_t a = lj_lib_checkint(L, 1); - int32_t h = lj_lib_checkint(L, 2); - lua_createtable(L, a, h); - return 1; -} - -LJLIB_NOREG LJLIB_CF(table_clear) LJLIB_REC(.) -{ - lj_tab_clear(lj_lib_checktab(L, 1)); - return 0; -} - -static int luaopen_table_new(lua_State *L) -{ - return lj_lib_postreg(L, lj_cf_table_new, FF_table_new, "new"); -} - -static int luaopen_table_clear(lua_State *L) -{ - return lj_lib_postreg(L, lj_cf_table_clear, FF_table_clear, "clear"); -} - -/* ------------------------------------------------------------------------ */ - -#include "lj_libdef.h" - -LUALIB_API int luaopen_table(lua_State *L) -{ - LJ_LIB_REG(L, LUA_TABLIBNAME, table); -#if LJ_52 - lua_getglobal(L, "unpack"); - lua_setfield(L, -2, "unpack"); -#endif - lj_lib_prereg(L, LUA_TABLIBNAME ".new", luaopen_table_new, tabV(L->top-1)); - lj_lib_prereg(L, LUA_TABLIBNAME ".clear", luaopen_table_clear, tabV(L->top-1)); - return 1; -} - |