sig/copy.cpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2015  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Affero General Public License, Version 3 {{{ */
   6 /*
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as published by
   9  * the Free Software Foundation, either version 3 of the License, or
  10  * (at your option) any later version.
  11
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #ifndef _GNU_SOURCE
  23 #define _GNU_SOURCE
  24 #endif
  25
  26 #include "Pooling.hpp"
  27 #include "sig/parse.hpp"
  28
  29 namespace sig {
  30
  31 void Copy(CYPool &pool, Element &lhs, const Element &rhs) {
  32     lhs.name = pool.strdup(rhs.name);
  33     if (rhs.type == NULL)
  34         lhs.type = NULL;
  35     else
  36         lhs.type = rhs.type->Copy(pool);
  37     lhs.offset = rhs.offset;
  38 }
  39
  40 void Copy(CYPool &pool, Signature &lhs, const Signature &rhs) {
  41     size_t count(rhs.count);
  42     lhs.count = count;
  43     lhs.elements = new(pool) Element[count];
  44     for (size_t index(0); index != count; ++index)
  45         Copy(pool, lhs.elements[index], rhs.elements[index]);
  46 }
  47
  48 Void *Void::Copy(CYPool &pool, const char *name) const {
  49     return new(pool) Void();
  50 }
  51
  52 Unknown *Unknown::Copy(CYPool &pool, const char *name) const {
  53     return new(pool) Unknown();
  54 }
  55
  56 String *String::Copy(CYPool &pool, const char *name) const {
  57     return new(pool) String();
  58 }
  59
  60 Meta *Meta::Copy(CYPool &pool, const char *name) const {
  61     return new(pool) Meta();
  62 }
  63
  64 Selector *Selector::Copy(CYPool &pool, const char *name) const {
  65     return new(pool) Selector();
  66 }
  67
  68 Bits *Bits::Copy(CYPool &pool, const char *name) const {
  69     return new(pool) Bits(size);
  70 }
  71
  72 Pointer *Pointer::Copy(CYPool &pool, const char *name) const {
  73     return new(pool) Pointer(*type.Copy(pool));
  74 }
  75
  76 Array *Array::Copy(CYPool &pool, const char *name) const {
  77     return new(pool) Array(*type.Copy(pool), size);
  78 }
  79
  80 Object *Object::Copy(CYPool &pool, const char *name) const {
  81     Object *copy(new(pool) Object(pool.strdup(name)));
  82     copy->name = name;
  83     return copy;
  84 }
  85
  86 Aggregate *Aggregate::Copy(CYPool &pool, const char *name) const {
  87     Aggregate *copy(new(pool) Aggregate(overlap, name));
  88     sig::Copy(pool, copy->signature, signature);
  89     copy->name = name;
  90     return copy;
  91 }
  92
  93 Function *Function::Copy(CYPool &pool, const char *name) const {
  94     Function *copy(new(pool) Function());
  95     sig::Copy(pool, copy->signature, signature);
  96     return copy;
  97 }
  98
  99 Block *Block::Copy(CYPool &pool, const char *name) const {
 100     Block *copy(new(pool) Block());
 101     sig::Copy(pool, copy->signature, signature);
 102     return copy;
 103 }
 104
 105 void Copy(CYPool &pool, ffi_type &lhs, ffi_type &rhs) {
 106     lhs.size = rhs.size;
 107     lhs.alignment = rhs.alignment;
 108     lhs.type = rhs.type;
 109     if (rhs.elements == NULL)
 110         lhs.elements = NULL;
 111     else {
 112         size_t count(0);
 113         while (rhs.elements[count] != NULL)
 114             ++count;
 115
 116         lhs.elements = new(pool) ffi_type *[count + 1];
 117         lhs.elements[count] = NULL;
 118
 119         for (size_t index(0); index != count; ++index) {
 120             // XXX: if these are libffi native then you can just take them
 121             ffi_type *ffi(new(pool) ffi_type);
 122             lhs.elements[index] = ffi;
 123             sig::Copy(pool, *ffi, *rhs.elements[index]);
 124         }
 125     }
 126 }
 127
 128 const char *Type::GetName() const {
 129     return NULL;
 130 }
 131
 132 const char *Object::GetName() const {
 133     return name;
 134 }
 135
 136 const char *Aggregate::GetName() const {
 137     return name;
 138 }
 139
 140 }