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-rw-r--r--libraries/LuaJIT-1.1.7/src/lfunc.c182
1 files changed, 0 insertions, 182 deletions
diff --git a/libraries/LuaJIT-1.1.7/src/lfunc.c b/libraries/LuaJIT-1.1.7/src/lfunc.c
deleted file mode 100644
index 334e305..0000000
--- a/libraries/LuaJIT-1.1.7/src/lfunc.c
+++ /dev/null
@@ -1,182 +0,0 @@
1/*
2** $Id: lfunc.c,v 2.12.1.2 2007/12/28 14:58:43 roberto Exp $
3** Auxiliary functions to manipulate prototypes and closures
4** See Copyright Notice in lua.h
5*/
6
7
8#include <stddef.h>
9
10#define lfunc_c
11#define LUA_CORE
12
13#include "lua.h"
14
15#include "lfunc.h"
16#include "lgc.h"
17#include "lmem.h"
18#include "lobject.h"
19#include "lstate.h"
20#include "ljit.h"
21
22
23
24Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e) {
25 Closure *c = cast(Closure *, luaM_malloc(L, sizeCclosure(nelems)));
26 luaC_link(L, obj2gco(c), LUA_TFUNCTION);
27 c->c.isC = 1;
28 c->c.env = e;
29 c->c.nupvalues = cast_byte(nelems);
30 c->c.jit_gate = G(L)->jit_gateJC;
31 return c;
32}
33
34
35Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e) {
36 Closure *c = cast(Closure *, luaM_malloc(L, sizeLclosure(nelems)));
37 luaC_link(L, obj2gco(c), LUA_TFUNCTION);
38 c->l.isC = 0;
39 c->l.env = e;
40 c->l.jit_gate = G(L)->jit_gateJL;
41 c->l.nupvalues = cast_byte(nelems);
42 while (nelems--) c->l.upvals[nelems] = NULL;
43 return c;
44}
45
46
47UpVal *luaF_newupval (lua_State *L) {
48 UpVal *uv = luaM_new(L, UpVal);
49 luaC_link(L, obj2gco(uv), LUA_TUPVAL);
50 uv->v = &uv->u.value;
51 setnilvalue(uv->v);
52 return uv;
53}
54
55
56UpVal *luaF_findupval (lua_State *L, StkId level) {
57 global_State *g = G(L);
58 GCObject **pp = &L->openupval;
59 UpVal *p;
60 UpVal *uv;
61 while (*pp != NULL && (p = ngcotouv(*pp))->v >= level) {
62 lua_assert(p->v != &p->u.value);
63 if (p->v == level) { /* found a corresponding upvalue? */
64 if (isdead(g, obj2gco(p))) /* is it dead? */
65 changewhite(obj2gco(p)); /* ressurect it */
66 return p;
67 }
68 pp = &p->next;
69 }
70 uv = luaM_new(L, UpVal); /* not found: create a new one */
71 uv->tt = LUA_TUPVAL;
72 uv->marked = luaC_white(g);
73 uv->v = level; /* current value lives in the stack */
74 uv->next = *pp; /* chain it in the proper position */
75 *pp = obj2gco(uv);
76 uv->u.l.prev = &g->uvhead; /* double link it in `uvhead' list */
77 uv->u.l.next = g->uvhead.u.l.next;
78 uv->u.l.next->u.l.prev = uv;
79 g->uvhead.u.l.next = uv;
80 lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv);
81 return uv;
82}
83
84
85static void unlinkupval (UpVal *uv) {
86 lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv);
87 uv->u.l.next->u.l.prev = uv->u.l.prev; /* remove from `uvhead' list */
88 uv->u.l.prev->u.l.next = uv->u.l.next;
89}
90
91
92void luaF_freeupval (lua_State *L, UpVal *uv) {
93 if (uv->v != &uv->u.value) /* is it open? */
94 unlinkupval(uv); /* remove from open list */
95 luaM_free(L, uv); /* free upvalue */
96}
97
98
99void luaF_close (lua_State *L, StkId level) {
100 UpVal *uv;
101 global_State *g = G(L);
102 while (L->openupval != NULL && (uv = ngcotouv(L->openupval))->v >= level) {
103 GCObject *o = obj2gco(uv);
104 lua_assert(!isblack(o) && uv->v != &uv->u.value);
105 L->openupval = uv->next; /* remove from `open' list */
106 if (isdead(g, o))
107 luaF_freeupval(L, uv); /* free upvalue */
108 else {
109 unlinkupval(uv);
110 setobj(L, &uv->u.value, uv->v);
111 uv->v = &uv->u.value; /* now current value lives here */
112 luaC_linkupval(L, uv); /* link upvalue into `gcroot' list */
113 }
114 }
115}
116
117
118Proto *luaF_newproto (lua_State *L) {
119 Proto *f = luaM_new(L, Proto);
120 luaC_link(L, obj2gco(f), LUA_TPROTO);
121 f->k = NULL;
122 f->sizek = 0;
123 f->p = NULL;
124 f->sizep = 0;
125 f->code = NULL;
126 f->sizecode = 0;
127 f->sizelineinfo = 0;
128 f->sizeupvalues = 0;
129 f->nups = 0;
130 f->upvalues = NULL;
131 f->numparams = 0;
132 f->is_vararg = 0;
133 f->maxstacksize = 0;
134 f->lineinfo = NULL;
135 f->sizelocvars = 0;
136 f->locvars = NULL;
137 f->linedefined = 0;
138 f->lastlinedefined = 0;
139 f->source = NULL;
140 /* LuaJIT extensions */
141 f->jit_mcode = NULL;
142 f->jit_szmcode = 0;
143 f->jit_status = JIT_S_NONE;
144 return f;
145}
146
147
148void luaF_freeproto (lua_State *L, Proto *f) {
149 luaJIT_freeproto(L, f);
150 luaM_freearray(L, f->code, f->sizecode, Instruction);
151 luaM_freearray(L, f->p, f->sizep, Proto *);
152 luaM_freearray(L, f->k, f->sizek, TValue);
153 luaM_freearray(L, f->lineinfo, f->sizelineinfo, int);
154 luaM_freearray(L, f->locvars, f->sizelocvars, struct LocVar);
155 luaM_freearray(L, f->upvalues, f->sizeupvalues, TString *);
156 luaM_free(L, f);
157}
158
159
160void luaF_freeclosure (lua_State *L, Closure *c) {
161 int size = (c->c.isC) ? sizeCclosure(c->c.nupvalues) :
162 sizeLclosure(c->l.nupvalues);
163 luaM_freemem(L, c, size);
164}
165
166
167/*
168** Look for n-th local variable at line `line' in function `func'.
169** Returns NULL if not found.
170*/
171const char *luaF_getlocalname (const Proto *f, int local_number, int pc) {
172 int i;
173 for (i = 0; i<f->sizelocvars && f->locvars[i].startpc <= pc; i++) {
174 if (pc < f->locvars[i].endpc) { /* is variable active? */
175 local_number--;
176 if (local_number == 0)
177 return getstr(f->locvars[i].varname);
178 }
179 }
180 return NULL; /* not found */
181}
182
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