8 void naFree(void* m) { free(m); }
9 void* naAlloc(int n) { return malloc(n); }
10 void* naRealloc(void* b, int n) { return realloc(b, n); }
11 void naBZero(void* m, int n) { memset(m, 0, n); }
13 void naTempSave(naContext c, naRef r)
16 if(!IS_OBJ(r)) return;
17 if(c->ntemps >= c->tempsz) {
19 struct naObj** newtemps = naAlloc(c->tempsz * sizeof(struct naObj*));
20 for(i=0; i<c->ntemps; i++)
21 newtemps[i] = c->temps[i];
25 c->temps[c->ntemps++] = r.ref.ptr.obj;
28 naRef naObj(int type, struct naObj* o)
31 r.ref.reftag = NASAL_REFTAG;
39 if(IS_NIL(r)) return 0;
40 if(IS_NUM(r)) return r.num != 0;
41 if(IS_STR(r)) return 1;
45 naRef naNumValue(naRef n)
48 if(IS_NUM(n)) return n;
49 if(IS_NIL(n)) return naNil();
50 if(IS_STR(n) && naStr_tonum(n, &d))
55 naRef naStringValue(naContext c, naRef r)
57 if(IS_NIL(r) || IS_STR(r)) return r;
59 naRef s = naNewString(c);
60 naStr_fromnum(s, r.num);
66 naRef naNew(struct Context* c, int type)
69 if(c->nfree[type] == 0)
70 c->free[type] = naGC_get(&globals->pools[type],
71 OBJ_CACHE_SZ, &c->nfree[type]);
72 result = naObj(type, c->free[type][--c->nfree[type]]);
73 naTempSave(c, result);
77 naRef naNewString(struct Context* c)
79 naRef s = naNew(c, T_STR);
80 s.ref.ptr.str->len = 0;
81 s.ref.ptr.str->data = 0;
82 s.ref.ptr.str->hashcode = 0;
86 naRef naNewVector(struct Context* c)
88 naRef r = naNew(c, T_VEC);
89 r.ref.ptr.vec->rec = 0;
93 naRef naNewHash(struct Context* c)
95 naRef r = naNew(c, T_HASH);
96 r.ref.ptr.hash->rec = 0;
100 naRef naNewCode(struct Context* c)
102 return naNew(c, T_CODE);
105 naRef naNewCCode(struct Context* c, naCFunction fptr)
107 naRef r = naNew(c, T_CCODE);
108 r.ref.ptr.ccode->fptr = fptr;
112 naRef naNewFunc(struct Context* c, naRef code)
114 naRef func = naNew(c, T_FUNC);
115 func.ref.ptr.func->code = code;
116 func.ref.ptr.func->namespace = naNil();
117 func.ref.ptr.func->next = naNil();
121 naRef naNewGhost(naContext c, naGhostType* type, void* ptr)
123 naRef ghost = naNew(c, T_GHOST);
124 ghost.ref.ptr.ghost->gtype = type;
125 ghost.ref.ptr.ghost->ptr = ptr;
129 naGhostType* naGhost_type(naRef ghost)
131 if(!IS_GHOST(ghost)) return 0;
132 return ghost.ref.ptr.ghost->gtype;
135 void* naGhost_ptr(naRef ghost)
137 if(!IS_GHOST(ghost)) return 0;
138 return ghost.ref.ptr.ghost->ptr;
144 r.ref.reftag = NASAL_REFTAG;
149 naRef naNum(double num)
152 r.ref.reftag = ~NASAL_REFTAG;
157 int naEqual(naRef a, naRef b)
160 if(IS_REF(a) && IS_REF(b) && a.ref.ptr.obj == b.ref.ptr.obj)
161 return 1; // Object identity (and nil == nil)
162 if(IS_NIL(a) || IS_NIL(b))
164 if(IS_NUM(a) && IS_NUM(b) && a.num == b.num)
165 return 1; // Numeric equality
166 if(IS_STR(a) && IS_STR(b) && naStr_equal(a, b))
167 return 1; // String equality
169 // Numeric equality after conversion
170 if(IS_NUM(a)) { na = a.num; }
171 else if(!(IS_STR(a) && naStr_tonum(a, &na))) { return 0; }
173 if(IS_NUM(b)) { nb = b.num; }
174 else if(!(IS_STR(b) && naStr_tonum(b, &nb))) { return 0; }
176 return na == nb ? 1 : 0;
179 int naStrEqual(naRef a, naRef b)
182 if(!(IS_STR(a) && IS_STR(b)))
184 if(a.ref.ptr.str->len != b.ref.ptr.str->len)
186 for(i=0; i<a.ref.ptr.str->len; i++)
187 if(a.ref.ptr.str->data[i] != b.ref.ptr.str->data[i])
192 int naTypeSize(int type)
195 case T_STR: return sizeof(struct naStr);
196 case T_VEC: return sizeof(struct naVec);
197 case T_HASH: return sizeof(struct naHash);
198 case T_CODE: return sizeof(struct naCode);
199 case T_FUNC: return sizeof(struct naFunc);
200 case T_CCODE: return sizeof(struct naCCode);
201 case T_GHOST: return sizeof(struct naGhost);
203 return 0x7fffffff; // Make sure the answer is nonsense :)
206 int naIsNil(naRef r) { return IS_NIL(r); }
207 int naIsNum(naRef r) { return IS_NUM(r); }
208 int naIsString(naRef r) { return IS_STR(r); }
209 int naIsScalar(naRef r) { return IS_SCALAR(r); }
210 int naIsVector(naRef r) { return IS_VEC(r); }
211 int naIsHash(naRef r) { return IS_HASH(r); }
212 int naIsFunc(naRef r) { return IS_FUNC(r); }
213 int naIsCode(naRef r) { return IS_CODE(r); }
214 int naIsCCode(naRef r) { return IS_CCODE(r); }
215 int naIsGhost(naRef r) { return IS_GHOST(r); }