Decode.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 #include <sstream>
  23
  24 #include "Decode.hpp"
  25 #include "Replace.hpp"
  26
  27 namespace sig {
  28
  29 template <>
  30 CYTypedIdentifier *Primitive<bool>::Decode(CYPool &pool) const {
  31     return $ CYTypedIdentifier($ CYTypeVariable("bool"));
  32 }
  33
  34 template <>
  35 CYTypedIdentifier *Primitive<char>::Decode(CYPool &pool) const {
  36     return $ CYTypedIdentifier($ CYTypeCharacter(CYTypeNeutral));
  37 }
  38
  39 template <>
  40 CYTypedIdentifier *Primitive<double>::Decode(CYPool &pool) const {
  41     return $ CYTypedIdentifier($ CYTypeVariable("double"));
  42 }
  43
  44 template <>
  45 CYTypedIdentifier *Primitive<float>::Decode(CYPool &pool) const {
  46     return $ CYTypedIdentifier($ CYTypeVariable("float"));
  47 }
  48
  49 template <>
  50 CYTypedIdentifier *Primitive<signed char>::Decode(CYPool &pool) const {
  51     return $ CYTypedIdentifier($ CYTypeCharacter(CYTypeSigned));
  52 }
  53
  54 template <>
  55 CYTypedIdentifier *Primitive<signed int>::Decode(CYPool &pool) const {
  56     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeSigned, 1));
  57 }
  58
  59 template <>
  60 CYTypedIdentifier *Primitive<signed long int>::Decode(CYPool &pool) const {
  61     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeSigned, 2));
  62 }
  63
  64 template <>
  65 CYTypedIdentifier *Primitive<signed long long int>::Decode(CYPool &pool) const {
  66     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeSigned, 3));
  67 }
  68
  69 template <>
  70 CYTypedIdentifier *Primitive<signed short int>::Decode(CYPool &pool) const {
  71     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeSigned, 0));
  72 }
  73
  74 template <>
  75 CYTypedIdentifier *Primitive<unsigned char>::Decode(CYPool &pool) const {
  76     return $ CYTypedIdentifier($ CYTypeCharacter(CYTypeUnsigned));
  77 }
  78
  79 template <>
  80 CYTypedIdentifier *Primitive<unsigned int>::Decode(CYPool &pool) const {
  81     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeUnsigned, 1));
  82 }
  83
  84 template <>
  85 CYTypedIdentifier *Primitive<unsigned long int>::Decode(CYPool &pool) const {
  86     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeUnsigned, 2));
  87 }
  88
  89 template <>
  90 CYTypedIdentifier *Primitive<unsigned long long int>::Decode(CYPool &pool) const {
  91     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeUnsigned, 3));
  92 }
  93
  94 template <>
  95 CYTypedIdentifier *Primitive<unsigned short int>::Decode(CYPool &pool) const {
  96     return $ CYTypedIdentifier($ CYTypeIntegral(CYTypeUnsigned, 0));
  97 }
  98
  99 CYTypedIdentifier *Void::Decode(CYPool &pool) const {
 100     return $ CYTypedIdentifier($ CYTypeVoid());
 101 }
 102
 103 CYTypedIdentifier *Unknown::Decode(CYPool &pool) const {
 104     return $ CYTypedIdentifier($ CYTypeError());
 105 }
 106
 107 CYTypedIdentifier *String::Decode(CYPool &pool) const {
 108     return $ CYTypedIdentifier($ CYTypeCharacter(CYTypeNeutral), $ CYTypePointerTo());
 109 }
 110
 111 #ifdef CY_OBJECTIVEC
 112 CYTypedIdentifier *Meta::Decode(CYPool &pool) const {
 113     return $ CYTypedIdentifier($ CYTypeVariable("Class"));
 114 }
 115
 116 CYTypedIdentifier *Selector::Decode(CYPool &pool) const {
 117     return $ CYTypedIdentifier($ CYTypeVariable("SEL"));
 118 }
 119 #endif
 120
 121 CYTypedIdentifier *Bits::Decode(CYPool &pool) const {
 122     _assert(false);
 123 }
 124
 125 CYTypedIdentifier *Pointer::Decode(CYPool &pool) const {
 126     return CYDecodeType(pool, &type)->Modify($ CYTypePointerTo());
 127 }
 128
 129 CYTypedIdentifier *Array::Decode(CYPool &pool) const {
 130     return CYDecodeType(pool, &type)->Modify($ CYTypeArrayOf($D(size)));
 131 }
 132
 133 #ifdef CY_OBJECTIVEC
 134 CYTypedIdentifier *Object::Decode(CYPool &pool) const {
 135     if (name == NULL)
 136         return $ CYTypedIdentifier($ CYTypeVariable("id"));
 137     else
 138         return $ CYTypedIdentifier($ CYTypeVariable(name), $ CYTypePointerTo());
 139 }
 140 #endif
 141
 142 CYTypedIdentifier *Aggregate::Decode(CYPool &pool) const {
 143     _assert(!overlap);
 144
 145     CYTypeStructField *fields(NULL);
 146     for (size_t i(signature.count); i != 0; --i) {
 147         sig::Element &element(signature.elements[i - 1]);
 148         CYTypedIdentifier *typed(CYDecodeType(pool, element.type));
 149         if (element.name != NULL)
 150             typed->identifier_ = $I(element.name);
 151         fields = $ CYTypeStructField(typed, fields);
 152     }
 153     CYIdentifier *identifier(name == NULL ? NULL : $I(name));
 154     return $ CYTypedIdentifier($ CYTypeStruct(identifier, $ CYStructTail(fields)));
 155 }
 156
 157 CYTypedIdentifier *Callable::Decode(CYPool &pool) const {
 158     _assert(signature.count != 0);
 159     CYTypedParameter *parameters(NULL);
 160     for (size_t i(signature.count - 1); i != 0; --i)
 161         parameters = $ CYTypedParameter(CYDecodeType(pool, signature.elements[i].type), parameters);
 162     return Modify(pool, CYDecodeType(pool, signature.elements[0].type), parameters);
 163 }
 164
 165 CYTypedIdentifier *Function::Modify(CYPool &pool, CYTypedIdentifier *result, CYTypedParameter *parameters) const {
 166     return result->Modify($ CYTypeFunctionWith(variadic, parameters));
 167 }
 168
 169 #ifdef CY_OBJECTIVEC
 170 CYTypedIdentifier *Block::Modify(CYPool &pool, CYTypedIdentifier *result, CYTypedParameter *parameters) const {
 171     return result->Modify($ CYTypeBlockWith(parameters));
 172 }
 173
 174 CYTypedIdentifier *Block::Decode(CYPool &pool) const {
 175     if (signature.count == 0)
 176         return $ CYTypedIdentifier($ CYTypeVariable("NSBlock"), $ CYTypePointerTo());
 177     return Callable::Decode(pool);
 178 }
 179 #endif
 180
 181 }
 182
 183 CYTypedIdentifier *CYDecodeType(CYPool &pool, struct sig::Type *type) {
 184     CYTypedIdentifier *typed(type->Decode(pool));
 185     if ((type->flags & JOC_TYPE_CONST) != 0) {
 186         if (dynamic_cast<sig::String *>(type) != NULL)
 187             typed->modifier_ = $ CYTypeConstant(typed->modifier_);
 188         else
 189             typed = typed->Modify($ CYTypeConstant());
 190     }
 191     return typed;
 192 }