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-rw-r--r--apps/plugins/lua/lfunc.c81
1 files changed, 47 insertions, 34 deletions
diff --git a/apps/plugins/lua/lfunc.c b/apps/plugins/lua/lfunc.c
index e90e1520ce..813e88f583 100644
--- a/apps/plugins/lua/lfunc.c
+++ b/apps/plugins/lua/lfunc.c
@@ -1,5 +1,5 @@
1/* 1/*
2** $Id: lfunc.c,v 2.30.1.1 2013/04/12 18:48:47 roberto Exp $ 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 3** Auxiliary functions to manipulate prototypes and closures
4** See Copyright Notice in lua.h 4** See Copyright Notice in lua.h
5*/ 5*/
@@ -20,24 +20,30 @@
20 20
21 21
22 22
23Closure *luaF_newCclosure (lua_State *L, int n) { 23Closure *luaF_newCclosure (lua_State *L, int nelems, Table *e) {
24 Closure *c = &luaC_newobj(L, LUA_TCCL, sizeCclosure(n), NULL, 0)->cl; 24 Closure *c = cast(Closure *, luaM_malloc(L, sizeCclosure(nelems)));
25 c->c.nupvalues = cast_byte(n); 25 luaC_link(L, obj2gco(c), LUA_TFUNCTION);
26 c->c.isC = 1;
27 c->c.env = e;
28 c->c.nupvalues = cast_byte(nelems);
26 return c; 29 return c;
27} 30}
28 31
29 32
30Closure *luaF_newLclosure (lua_State *L, int n) { 33Closure *luaF_newLclosure (lua_State *L, int nelems, Table *e) {
31 Closure *c = &luaC_newobj(L, LUA_TLCL, sizeLclosure(n), NULL, 0)->cl; 34 Closure *c = cast(Closure *, luaM_malloc(L, sizeLclosure(nelems)));
32 c->l.p = NULL; 35 luaC_link(L, obj2gco(c), LUA_TFUNCTION);
33 c->l.nupvalues = cast_byte(n); 36 c->l.isC = 0;
34 while (n--) c->l.upvals[n] = NULL; 37 c->l.env = e;
38 c->l.nupvalues = cast_byte(nelems);
39 while (nelems--) c->l.upvals[nelems] = NULL;
35 return c; 40 return c;
36} 41}
37 42
38 43
39UpVal *luaF_newupval (lua_State *L) { 44UpVal *luaF_newupval (lua_State *L) {
40 UpVal *uv = &luaC_newobj(L, LUA_TUPVAL, sizeof(UpVal), NULL, 0)->uv; 45 UpVal *uv = luaM_new(L, UpVal);
46 luaC_link(L, obj2gco(uv), LUA_TUPVAL);
41 uv->v = &uv->u.value; 47 uv->v = &uv->u.value;
42 setnilvalue(uv->v); 48 setnilvalue(uv->v);
43 return uv; 49 return uv;
@@ -49,20 +55,21 @@ UpVal *luaF_findupval (lua_State *L, StkId level) {
49 GCObject **pp = &L->openupval; 55 GCObject **pp = &L->openupval;
50 UpVal *p; 56 UpVal *p;
51 UpVal *uv; 57 UpVal *uv;
52 while (*pp != NULL && (p = gco2uv(*pp))->v >= level) { 58 while (*pp != NULL && (p = ngcotouv(*pp))->v >= level) {
53 GCObject *o = obj2gco(p);
54 lua_assert(p->v != &p->u.value); 59 lua_assert(p->v != &p->u.value);
55 lua_assert(!isold(o) || isold(obj2gco(L)));
56 if (p->v == level) { /* found a corresponding upvalue? */ 60 if (p->v == level) { /* found a corresponding upvalue? */
57 if (isdead(g, o)) /* is it dead? */ 61 if (isdead(g, obj2gco(p))) /* is it dead? */
58 changewhite(o); /* resurrect it */ 62 changewhite(obj2gco(p)); /* ressurect it */
59 return p; 63 return p;
60 } 64 }
61 pp = &p->next; 65 pp = &p->next;
62 } 66 }
63 /* not found: create a new one */ 67 uv = luaM_new(L, UpVal); /* not found: create a new one */
64 uv = &luaC_newobj(L, LUA_TUPVAL, sizeof(UpVal), pp, 0)->uv; 68 uv->tt = LUA_TUPVAL;
69 uv->marked = luaC_white(g);
65 uv->v = level; /* current value lives in the stack */ 70 uv->v = level; /* current value lives in the stack */
71 uv->next = *pp; /* chain it in the proper position */
72 *pp = obj2gco(uv);
66 uv->u.l.prev = &g->uvhead; /* double link it in `uvhead' list */ 73 uv->u.l.prev = &g->uvhead; /* double link it in `uvhead' list */
67 uv->u.l.next = g->uvhead.u.l.next; 74 uv->u.l.next = g->uvhead.u.l.next;
68 uv->u.l.next->u.l.prev = uv; 75 uv->u.l.next->u.l.prev = uv;
@@ -89,42 +96,41 @@ void luaF_freeupval (lua_State *L, UpVal *uv) {
89void luaF_close (lua_State *L, StkId level) { 96void luaF_close (lua_State *L, StkId level) {
90 UpVal *uv; 97 UpVal *uv;
91 global_State *g = G(L); 98 global_State *g = G(L);
92 while (L->openupval != NULL && (uv = gco2uv(L->openupval))->v >= level) { 99 while (L->openupval != NULL && (uv = ngcotouv(L->openupval))->v >= level) {
93 GCObject *o = obj2gco(uv); 100 GCObject *o = obj2gco(uv);
94 lua_assert(!isblack(o) && uv->v != &uv->u.value); 101 lua_assert(!isblack(o) && uv->v != &uv->u.value);
95 L->openupval = uv->next; /* remove from `open' list */ 102 L->openupval = uv->next; /* remove from `open' list */
96 if (isdead(g, o)) 103 if (isdead(g, o))
97 luaF_freeupval(L, uv); /* free upvalue */ 104 luaF_freeupval(L, uv); /* free upvalue */
98 else { 105 else {
99 unlinkupval(uv); /* remove upvalue from 'uvhead' list */ 106 unlinkupval(uv);
100 setobj(L, &uv->u.value, uv->v); /* move value to upvalue slot */ 107 setobj(L, &uv->u.value, uv->v);
101 uv->v = &uv->u.value; /* now current value lives here */ 108 uv->v = &uv->u.value; /* now current value lives here */
102 gch(o)->next = g->allgc; /* link upvalue into 'allgc' list */ 109 luaC_linkupval(L, uv); /* link upvalue into `gcroot' list */
103 g->allgc = o;
104 luaC_checkupvalcolor(g, uv);
105 } 110 }
106 } 111 }
107} 112}
108 113
109 114
110Proto *luaF_newproto (lua_State *L) { 115Proto *luaF_newproto (lua_State *L) {
111 Proto *f = &luaC_newobj(L, LUA_TPROTO, sizeof(Proto), NULL, 0)->p; 116 Proto *f = luaM_new(L, Proto);
117 luaC_link(L, obj2gco(f), LUA_TPROTO);
112 f->k = NULL; 118 f->k = NULL;
113 f->sizek = 0; 119 f->sizek = 0;
114 f->p = NULL; 120 f->p = NULL;
115 f->sizep = 0; 121 f->sizep = 0;
116 f->code = NULL; 122 f->code = NULL;
117 f->cache = NULL;
118 f->sizecode = 0; 123 f->sizecode = 0;
119 f->lineinfo = NULL;
120 f->sizelineinfo = 0; 124 f->sizelineinfo = 0;
121 f->upvalues = NULL;
122 f->sizeupvalues = 0; 125 f->sizeupvalues = 0;
126 f->nups = 0;
127 f->upvalues = NULL;
123 f->numparams = 0; 128 f->numparams = 0;
124 f->is_vararg = 0; 129 f->is_vararg = 0;
125 f->maxstacksize = 0; 130 f->maxstacksize = 0;
126 f->locvars = NULL; 131 f->lineinfo = NULL;
127 f->sizelocvars = 0; 132 f->sizelocvars = 0;
133 f->locvars = NULL;
128 f->linedefined = 0; 134 f->linedefined = 0;
129 f->lastlinedefined = 0; 135 f->lastlinedefined = 0;
130 f->source = NULL; 136 f->source = NULL;
@@ -133,16 +139,23 @@ Proto *luaF_newproto (lua_State *L) {
133 139
134 140
135void luaF_freeproto (lua_State *L, Proto *f) { 141void luaF_freeproto (lua_State *L, Proto *f) {
136 luaM_freearray(L, f->code, f->sizecode); 142 luaM_freearray(L, f->code, f->sizecode, Instruction);
137 luaM_freearray(L, f->p, f->sizep); 143 luaM_freearray(L, f->p, f->sizep, Proto *);
138 luaM_freearray(L, f->k, f->sizek); 144 luaM_freearray(L, f->k, f->sizek, TValue);
139 luaM_freearray(L, f->lineinfo, f->sizelineinfo); 145 luaM_freearray(L, f->lineinfo, f->sizelineinfo, int);
140 luaM_freearray(L, f->locvars, f->sizelocvars); 146 luaM_freearray(L, f->locvars, f->sizelocvars, struct LocVar);
141 luaM_freearray(L, f->upvalues, f->sizeupvalues); 147 luaM_freearray(L, f->upvalues, f->sizeupvalues, TString *);
142 luaM_free(L, f); 148 luaM_free(L, f);
143} 149}
144 150
145 151
152void luaF_freeclosure (lua_State *L, Closure *c) {
153 int size = (c->c.isC) ? sizeCclosure(c->c.nupvalues) :
154 sizeLclosure(c->l.nupvalues);
155 luaM_freemem(L, c, size);
156}
157
158
146/* 159/*
147** Look for n-th local variable at line `line' in function `func'. 160** Look for n-th local variable at line `line' in function `func'.
148** Returns NULL if not found. 161** Returns NULL if not found.