sig/copy.cpp

   1 /* Cycript - The Truly Universal Scripting Language
   2  * Copyright (C) 2009-2016  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 *rename) const {
  49     return new(pool) Void();
  50 }
  51
  52 Unknown *Unknown::Copy(CYPool &pool, const char *rename) const {
  53     return new(pool) Unknown();
  54 }
  55
  56 String *String::Copy(CYPool &pool, const char *rename) const {
  57     return new(pool) String();
  58 }
  59
  60 Meta *Meta::Copy(CYPool &pool, const char *rename) const {
  61     return new(pool) Meta();
  62 }
  63
  64 Selector *Selector::Copy(CYPool &pool, const char *rename) const {
  65     return new(pool) Selector();
  66 }
  67
  68 Bits *Bits::Copy(CYPool &pool, const char *rename) const {
  69     return new(pool) Bits(size);
  70 }
  71
  72 Pointer *Pointer::Copy(CYPool &pool, const char *rename) const {
  73     return new(pool) Pointer(*type.Copy(pool));
  74 }
  75
  76 Array *Array::Copy(CYPool &pool, const char *rename) const {
  77     return new(pool) Array(*type.Copy(pool), size);
  78 }
  79
  80 Object *Object::Copy(CYPool &pool, const char *rename) const {
  81     return new(pool) Object(pool.strdup(name));
  82 }
  83
  84 Aggregate *Aggregate::Copy(CYPool &pool, const char *rename) const {
  85     Aggregate *copy(new(pool) Aggregate(overlap, rename ?: pool.strdup(name)));
  86     sig::Copy(pool, copy->signature, signature);
  87     return copy;
  88 }
  89
  90 Function *Function::Copy(CYPool &pool, const char *rename) const {
  91     Function *copy(new(pool) Function(variadic));
  92     sig::Copy(pool, copy->signature, signature);
  93     return copy;
  94 }
  95
  96 Block *Block::Copy(CYPool &pool, const char *rename) const {
  97     Block *copy(new(pool) Block());
  98     sig::Copy(pool, copy->signature, signature);
  99     return copy;
 100 }
 101
 102 void Copy(CYPool &pool, ffi_type &lhs, ffi_type &rhs) {
 103     lhs.size = rhs.size;
 104     lhs.alignment = rhs.alignment;
 105     lhs.type = rhs.type;
 106     if (rhs.elements == NULL)
 107         lhs.elements = NULL;
 108     else {
 109         size_t count(0);
 110         while (rhs.elements[count] != NULL)
 111             ++count;
 112
 113         lhs.elements = new(pool) ffi_type *[count + 1];
 114         lhs.elements[count] = NULL;
 115
 116         for (size_t index(0); index != count; ++index) {
 117             // XXX: if these are libffi native then you can just take them
 118             ffi_type *ffi(new(pool) ffi_type);
 119             lhs.elements[index] = ffi;
 120             sig::Copy(pool, *ffi, *rhs.elements[index]);
 121         }
 122     }
 123 }
 124
 125 const char *Type::GetName() const {
 126     return NULL;
 127 }
 128
 129 const char *Aggregate::GetName() const {
 130     return name;
 131 }
 132
 133 }