ObjectiveC/Replace.cpp

   1 /* Cycript - Optimizing JavaScript Compiler/Runtime
   2  * Copyright (C) 2009-2010  Jay Freeman (saurik)
   3 */
   4
   5 /* GNU Lesser General Public License, Version 3 {{{ */
   6 /*
   7  * Cycript is free software: you can redistribute it and/or modify it under
   8  * the terms of the GNU Lesser General Public License as published by the
   9  * Free Software Foundation, either version 3 of the License, or (at your
  10  * option) any later version.
  11  *
  12  * Cycript is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  15  * License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public License
  18  * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
  19 **/
  20 /* }}} */
  21
  22 #include "Replace.hpp"
  23 #include "ObjectiveC/Syntax.hpp"
  24
  25 #include <sstream>
  26
  27 CYStatement *CYCategory::Replace(CYContext &context) {
  28     CYVariable *cyc($V("$cyc")), *cys($V("$cys"));
  29
  30     return $E($C1($F(NULL, $P5("$cys", "$cyp", "$cyc", "$cyn", "$cyt"), $$->*
  31         $E($ CYAssign($V("$cyp"), $C1($V("object_getClass"), cys)))->*
  32         $E($ CYAssign(cyc, cys))->*
  33         $E($ CYAssign($V("$cym"), $C1($V("object_getClass"), cyc)))->*
  34         messages_->Replace(context, true)
  35     ), name_->ClassName(context, true)));
  36 }
  37
  38 CYExpression *CYClass::Replace_(CYContext &context) {
  39     CYVariable *cyc($V("$cyc")), *cys($V("$cys"));
  40
  41     CYExpression *name(name_ != NULL ? name_->ClassName(context, false) : $C1($V("$cyq"), $S("CY$")));
  42
  43     return $C1($F(NULL, $P6("$cys", "$cyp", "$cyc", "$cyn", "$cyt", "$cym"), $$->*
  44         $E($ CYAssign($V("$cyp"), $C1($V("object_getClass"), cys)))->*
  45         $E($ CYAssign(cyc, $C3($V("objc_allocateClassPair"), cys, name, $D(0))))->*
  46         $E($ CYAssign($V("$cym"), $C1($V("object_getClass"), cyc)))->*
  47         protocols_->Replace(context)->*
  48         fields_->Replace(context)->*
  49         messages_->Replace(context, false)->*
  50         $E($C1($V("objc_registerClassPair"), cyc))->*
  51         $ CYReturn(cyc)
  52     ), super_ == NULL ? $ CYNull() : super_);
  53 }
  54
  55 CYExpression *CYClassExpression::Replace(CYContext &context) {
  56     return Replace_(context);
  57 }
  58
  59 CYStatement *CYClassStatement::Replace(CYContext &context) {
  60     return $E(Replace_(context));
  61 }
  62
  63 CYStatement *CYField::Replace(CYContext &context) const {
  64     return NULL;
  65 }
  66
  67 CYStatement *CYImport::Replace(CYContext &context) {
  68     return this;
  69 }
  70
  71 CYStatement *CYMessage::Replace(CYContext &context, bool replace) const { $T(NULL)
  72     CYVariable *cyn($V("$cyn"));
  73     CYVariable *cyt($V("$cyt"));
  74     CYVariable *self($V("self"));
  75     CYVariable *_class($V(instance_ ? "$cys" : "$cyp"));
  76
  77     return $ CYBlock($$->*
  78         next_->Replace(context, replace)->*
  79         $E($ CYAssign(cyn, parameters_->Selector(context)))->*
  80         $E($ CYAssign(cyt, $C1($M(cyn, $S("type")), _class)))->*
  81         $E($C4($V(replace ? "class_replaceMethod" : "class_addMethod"),
  82             $V(instance_ ? "$cyc" : "$cym"),
  83             cyn,
  84             $N2($V("Functor"), $F(NULL, $P2("self", "_cmd", parameters_->Parameters(context)), $$->*
  85                 $ CYVar($L1($L($I("$cyr"), $N2($V("Super"), self, _class))))->*
  86                 $ CYReturn($C1($M($F(NULL, NULL, code_), $S("call")), self))
  87             ), cyt),
  88             cyt
  89         ))
  90     );
  91 }
  92
  93 CYFunctionParameter *CYMessageParameter::Parameters(CYContext &context) const { $T(NULL)
  94     CYFunctionParameter *next(next_->Parameters(context));
  95     return name_ == NULL ? next : $ CYFunctionParameter(name_, next);
  96 }
  97
  98 CYSelector *CYMessageParameter::Selector(CYContext &context) const {
  99     return $ CYSelector(SelectorPart(context));
 100 }
 101
 102 CYSelectorPart *CYMessageParameter::SelectorPart(CYContext &context) const { $T(NULL)
 103     CYSelectorPart *next(next_->SelectorPart(context));
 104     return tag_ == NULL ? next : $ CYSelectorPart(tag_, name_ != NULL, next);
 105 }
 106
 107 CYStatement *CYProtocol::Replace(CYContext &context) const { $T(NULL)
 108     return $ CYBlock($$->*
 109         next_->Replace(context)->*
 110         $E($C2($V("class_addProtocol"),
 111             $V("$cyc"), name_
 112         ))
 113     );
 114 }
 115
 116 CYExpression *CYSelector::Replace(CYContext &context) {
 117     return $N1($V("Selector"), name_->Replace(context));
 118 }
 119
 120 CYString *CYSelectorPart::Replace(CYContext &context) {
 121     std::ostringstream str;
 122     CYForEach (part, this) {
 123         if (part->name_ != NULL)
 124             str << part->name_->Word();
 125         if (part->value_)
 126             str << ':';
 127     }
 128     return $S(apr_pstrdup($pool, str.str().c_str()));
 129 }
 130
 131 CYExpression *CYSendDirect::Replace(CYContext &context) {
 132     std::ostringstream name;
 133     CYArgument **argument(&arguments_);
 134     CYSelectorPart *selector(NULL), *current(NULL);
 135
 136     while (*argument != NULL) {
 137         if ((*argument)->name_ != NULL) {
 138             CYSelectorPart *part($ CYSelectorPart((*argument)->name_, (*argument)->value_ != NULL));
 139             if (selector == NULL)
 140                 selector = part;
 141             if (current != NULL)
 142                 current->SetNext(part);
 143             current = part;
 144             (*argument)->name_ = NULL;
 145         }
 146
 147         if ((*argument)->value_ == NULL)
 148             *argument = (*argument)->next_;
 149         else
 150             argument = &(*argument)->next_;
 151     }
 152
 153     return $C2($V("objc_msgSend"), self_, ($ CYSelector(selector))->Replace(context), arguments_);
 154 }
 155
 156 CYExpression *CYSendSuper::Replace(CYContext &context) {
 157     return $ CYSendDirect($V("cyr"), arguments_);
 158 }