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1 /* Cycript - Optimizing JavaScript Compiler/Runtime
2 * Copyright (C) 2009-2013 Jay Freeman (saurik)
3 */
4
5 /* GNU General Public License, Version 3 {{{ */
6 /*
7 * Cycript is free software: you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published
9 * by the Free Software Foundation, either version 3 of the License,
10 * or (at your option) any later version.
11 *
12 * Cycript is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU 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 static CYExpression *MessageType(CYContext &context, CYExpression *type, CYMessageParameter *next, CYExpression *extra = NULL) {
28 if (type == NULL)
29 return NULL;
30
31 CYExpression *left($C0($M(type, $S("toString"))));
32 if (extra != NULL)
33 left = $ CYAdd(left, extra);
34
35 if (next == NULL || next->name_ == NULL)
36 return left;
37
38 CYExpression *right(next->TypeSignature(context));
39 if (right == NULL)
40 return NULL;
41
42 return $ CYAdd(left, right);
43 }
44
45 CYStatement *CYCategory::Replace(CYContext &context) {
46 CYVariable *cyc($V("$cyc")), *cys($V("$cys"));
47
48 return $E($C1($F(NULL, $P6($L("$cys"), $L("$cyp"), $L("$cyc"), $L("$cyn"), $L("$cyt"), $L("$cym")), $$->*
49 $E($ CYAssign($V("$cyp"), $C1($V("object_getClass"), cys)))->*
50 $E($ CYAssign(cyc, cys))->*
51 $E($ CYAssign($V("$cym"), $C1($V("object_getClass"), cyc)))->*
52 messages_->Replace(context, true)
53 ), name_->ClassName(context, true)));
54 }
55
56 CYExpression *CYClass::Replace_(CYContext &context) {
57 CYVariable *cyc($V("$cyc")), *cys($V("$cys"));
58
59 CYExpression *name(name_ != NULL ? name_->ClassName(context, false) : $C1($V("$cyq"), $S("CY$")));
60
61 return $C1($F(NULL, $P6($L("$cys"), $L("$cyp"), $L("$cyc"), $L("$cyn"), $L("$cyt"), $L("$cym")), $$->*
62 $E($ CYAssign($V("$cyp"), $C1($V("object_getClass"), cys)))->*
63 $E($ CYAssign(cyc, $C3($V("objc_allocateClassPair"), cys, name, $D(0))))->*
64 $E($ CYAssign($V("$cym"), $C1($V("object_getClass"), cyc)))->*
65 protocols_->Replace(context)->*
66 fields_->Replace(context)->*
67 messages_->Replace(context, false)->*
68 $E($C1($V("objc_registerClassPair"), cyc))->*
69 $ CYReturn(cyc)
70 ), super_ == NULL ? $ CYNull() : super_);
71 }
72
73 CYExpression *CYClassExpression::Replace(CYContext &context) {
74 return Replace_(context);
75 }
76
77 CYStatement *CYClassStatement::Replace(CYContext &context) {
78 return $E(Replace_(context));
79 }
80
81 CYStatement *CYField::Replace(CYContext &context) const { $T(NULL)
82 CYVariable *cyn($V("$cyn"));
83 CYVariable *cyt($V("$cyt"));
84
85 CYExpression *type($C0($M(type_, $S("toString"))));
86
87 return $ CYBlock($$->*
88 next_->Replace(context)->*
89 $E($ CYAssign(cyt, type))->*
90 $E($ CYAssign(cyn, $N1($V("Type"), cyt)))->*
91 $E($C5($V("class_addIvar"), $V("$cyc"), $S(name_->Word()), $M(cyn, $S("size")), $M(cyn, $S("alignment")), cyt))
92 );
93 }
94
95 CYStatement *CYImport::Replace(CYContext &context) {
96 return $ CYVar($L1($L(module_->part_->Word(), $C1($V("require"), module_->Replace(context, "/")))));
97 }
98
99 CYStatement *CYMessage::Replace(CYContext &context, bool replace) const { $T(NULL)
100 CYVariable *cyn($V("$cyn"));
101 CYVariable *cyt($V("$cyt"));
102 CYVariable *self($V("self"));
103 CYVariable *_class($V(instance_ ? "$cys" : "$cyp"));
104
105 CYExpression *type(TypeSignature(context) ?: $C1($M(cyn, $S("type")), _class));
106
107 return $ CYBlock($$->*
108 next_->Replace(context, replace)->*
109 $E($ CYAssign(cyn, parameters_->Selector(context)))->*
110 $E($ CYAssign(cyt, type))->*
111 $E($C4($V(replace ? "class_replaceMethod" : "class_addMethod"),
112 $V(instance_ ? "$cyc" : "$cym"),
113 cyn,
114 $N2($V("Functor"), $F(NULL, $P2($L("self"), $L("_cmd"), parameters_->Parameters(context)), $$->*
115 $ CYVar($L1($L("$cyr", $N2($V("objc_super"), self, _class))))->*
116 $ CYReturn($C1($M($F(NULL, NULL, code_), $S("call")), self))
117 ), cyt),
118 cyt
119 ))
120 );
121 }
122
123 CYExpression *CYMessage::TypeSignature(CYContext &context) const {
124 return MessageType(context, type_, parameters_, $S("@:"));
125 }
126
127 CYFunctionParameter *CYMessageParameter::Parameters(CYContext &context) const { $T(NULL)
128 CYFunctionParameter *next(next_->Parameters(context));
129 return name_ == NULL ? next : $ CYFunctionParameter($ CYDeclaration(name_), next);
130 }
131
132 CYSelector *CYMessageParameter::Selector(CYContext &context) const {
133 return $ CYSelector(SelectorPart(context));
134 }
135
136 CYSelectorPart *CYMessageParameter::SelectorPart(CYContext &context) const { $T(NULL)
137 CYSelectorPart *next(next_->SelectorPart(context));
138 return tag_ == NULL ? next : $ CYSelectorPart(tag_, name_ != NULL, next);
139 }
140
141 CYExpression *CYMessageParameter::TypeSignature(CYContext &context) const {
142 return MessageType(context, type_, next_);
143 }
144
145 CYString *CYModule::Replace(CYContext &context, const char *separator) const {
146 if (next_ == NULL)
147 return $ CYString(part_);
148 return $ CYString($pool.strcat(next_->Replace(context, separator)->Value(), separator, part_->Word(), NULL));
149 }
150
151 CYExpression *CYBox::Replace(CYContext &context) {
152 return $C1($M($V("Instance"), $S("box")), value_);
153 }
154
155 CYExpression *CYObjCBlock::Replace(CYContext &context) {
156 return $C1($ CYEncodedType(($ CYTypedIdentifier(*typed_))->Modify($ CYTypeBlockWith(parameters_))), $ CYFunctionExpression(NULL, parameters_->Parameters(context), statements_));
157 }
158
159 CYStatement *CYProtocol::Replace(CYContext &context) const { $T(NULL)
160 return $ CYBlock($$->*
161 next_->Replace(context)->*
162 $E($C2($V("class_addProtocol"),
163 $V("$cyc"), name_
164 ))
165 );
166 }
167
168 CYExpression *CYSelector::Replace(CYContext &context) {
169 return $C1($V("sel_registerName"), name_->Replace(context));
170 }
171
172 CYString *CYSelectorPart::Replace(CYContext &context) {
173 std::ostringstream str;
174 CYForEach (part, this) {
175 if (part->name_ != NULL)
176 str << part->name_->Word();
177 if (part->value_)
178 str << ':';
179 }
180 return $S($pool.strdup(str.str().c_str()));
181 }
182
183 CYExpression *CYSendDirect::Replace(CYContext &context) {
184 std::ostringstream name;
185 CYArgument **argument(&arguments_);
186 CYSelectorPart *selector(NULL), *current(NULL);
187
188 while (*argument != NULL) {
189 if ((*argument)->name_ != NULL) {
190 CYSelectorPart *part($ CYSelectorPart((*argument)->name_, (*argument)->value_ != NULL));
191 if (selector == NULL)
192 selector = part;
193 if (current != NULL)
194 current->SetNext(part);
195 current = part;
196 (*argument)->name_ = NULL;
197 }
198
199 if ((*argument)->value_ == NULL)
200 *argument = (*argument)->next_;
201 else
202 argument = &(*argument)->next_;
203 }
204
205 return $C2($V("objc_msgSend"), self_, ($ CYSelector(selector))->Replace(context), arguments_);
206 }
207
208 CYExpression *CYSendSuper::Replace(CYContext &context) {
209 return $ CYSendDirect($V("$cyr"), arguments_);
210 }