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Added apr-lib Depends on iphoneos-sys, refactored CYUTF16String support (much more...
[cycript.git] / sig / ffi_type.cpp
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1/* Cycript - Inlining/Optimizing JavaScript Compiler
2 * Copyright (C) 2009 Jay Freeman (saurik)
3*/
4
5/* Modified BSD License {{{ */
6/*
7 * Redistribution and use in source and binary
8 * forms, with or without modification, are permitted
9 * provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the
12 * above copyright notice, this list of conditions
13 * and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the
15 * above copyright notice, this list of conditions
16 * and the following disclaimer in the documentation
17 * and/or other materials provided with the
18 * distribution.
19 * 3. The name of the author may not be used to endorse
20 * or promote products derived from this software
21 * without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
24 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
25 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
26 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
29 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
30 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
31 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
34 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
35 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
36 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37*/
38/* }}} */
39
40#include "Error.hpp"
41
42#include "sig/ffi_type.hpp"
43#include "sig/types.hpp"
44
45#define ffi_type_slonglong ffi_type_sint64
46#define ffi_type_ulonglong ffi_type_uint64
47
48namespace sig {
49
50void sig_ffi_types(
51 apr_pool_t *pool,
52 ffi_type *(*sig_ffi_type)(apr_pool_t *, struct Type *),
53 struct Signature *signature,
54 ffi_type **types,
55 size_t skip = 0,
56 size_t offset = 0
57) {
58 _assert(signature->count >= skip);
59 for (size_t index = skip; index != signature->count; ++index)
60 types[index - skip + offset] = (*sig_ffi_type)(pool, signature->elements[index].type);
61}
62
63ffi_type *ObjectiveC(apr_pool_t *pool, struct Type *type) {
64 switch (type->primitive) {
65 case typename_P: return &ffi_type_pointer;
66
67 case union_P:
68 /* XXX: we can totally make this work */
69 _assert(false);
70 break;
71
72 case string_P: return &ffi_type_pointer;
73 case selector_P: return &ffi_type_pointer;
74 case object_P: return &ffi_type_pointer;
75 case boolean_P: return &ffi_type_uchar;
76 case uchar_P: return &ffi_type_uchar;
77 case uint_P: return &ffi_type_uint;
78 case ulong_P: return &ffi_type_ulong;
79 case ulonglong_P: return &ffi_type_ulonglong;
80 case ushort_P: return &ffi_type_ushort;
81
82 case array_P: {
83 // XXX: this is really lame
84 ffi_type *aggregate(reinterpret_cast<ffi_type *>(apr_palloc(pool, sizeof(ffi_type))));
85 aggregate->size = 0;
86 aggregate->alignment = 0;
87 aggregate->type = FFI_TYPE_STRUCT;
88
89 ffi_type *element(ObjectiveC(pool, type->data.data.type));
90 size_t size(type->data.data.size);
91
92 aggregate->elements = reinterpret_cast<ffi_type **>(apr_palloc(pool, (size + 1) * sizeof(ffi_type *)));
93 for (size_t i(0); i != size; ++i)
94 aggregate->elements[i] = element;
95 aggregate->elements[size] = NULL;
96
97 return aggregate;
98 } break;
99
100 case pointer_P: return &ffi_type_pointer;
101
102 case bit_P:
103 /* XXX: we can totally make this work */
104 _assert(false);
105 break;
106
107 case char_P: return &ffi_type_schar;
108 case double_P: return &ffi_type_double;
109 case float_P: return &ffi_type_float;
110 case int_P: return &ffi_type_sint;
111 case long_P: return &ffi_type_slong;
112 case longlong_P: return &ffi_type_slonglong;
113 case short_P: return &ffi_type_sshort;
114
115 case void_P: return &ffi_type_void;
116
117 case struct_P: {
118 ffi_type *aggregate(reinterpret_cast<ffi_type *>(apr_palloc(pool, sizeof(ffi_type))));
119 aggregate->size = 0;
120 aggregate->alignment = 0;
121 aggregate->type = FFI_TYPE_STRUCT;
122
123 aggregate->elements = reinterpret_cast<ffi_type **>(apr_palloc(pool, (type->data.signature.count + 1) * sizeof(ffi_type *)));
124 sig_ffi_types(pool, &ObjectiveC, &type->data.signature, aggregate->elements);
125 aggregate->elements[type->data.signature.count] = NULL;
126
127 return aggregate;
128 } break;
129
130 default:
131 _assert(false);
132 break;
133 }
134}
135
136ffi_type *Java(apr_pool_t *pool, struct Type *type) {
137 switch (type->primitive) {
138 case typename_P: return &ffi_type_pointer;
139 case union_P: return &ffi_type_pointer;
140 case string_P: return &ffi_type_pointer;
141 case selector_P: return &ffi_type_pointer;
142 case object_P: return &ffi_type_pointer;
143 case boolean_P: return &ffi_type_uchar;
144 case uchar_P: return &ffi_type_uchar;
145 case uint_P: return &ffi_type_uint;
146 case ulong_P: return &ffi_type_ulong;
147 case ulonglong_P: return &ffi_type_ulonglong;
148 case ushort_P: return &ffi_type_ushort;
149 case array_P: return &ffi_type_pointer;
150 case pointer_P: return &ffi_type_pointer;
151
152 /* XXX: bit type */
153 case bit_P: return &ffi_type_uint;
154
155 case char_P: return &ffi_type_schar;
156 case double_P: return &ffi_type_double;
157 case float_P: return &ffi_type_double;
158 case int_P: return &ffi_type_sint;
159 case long_P: return &ffi_type_slong;
160 case longlong_P: return &ffi_type_slonglong;
161 case short_P: return &ffi_type_sshort;
162 case void_P: return &ffi_type_void;
163 case struct_P: return &ffi_type_pointer;
164
165 default:
166 _assert(false);
167 break;
168 }
169}
170
171void sig_ffi_cif(
172 apr_pool_t *pool,
173 ffi_type *(*sig_ffi_type)(apr_pool_t *, struct Type *),
174 struct Signature *signature,
175 ffi_cif *cif,
176 size_t skip,
177 ffi_type **types,
178 size_t offset
179) {
180 if (types == NULL)
181 types = reinterpret_cast<ffi_type **>(apr_palloc(pool, (signature->count - 1) * sizeof(ffi_type *)));
182 ffi_type *type = (*sig_ffi_type)(pool, signature->elements[0].type);
183 sig_ffi_types(pool, sig_ffi_type, signature, types, 1 + skip, offset);
184 ffi_status status = ffi_prep_cif(cif, FFI_DEFAULT_ABI, signature->count - 1 - skip + offset, type, types);
185 _assert(status == FFI_OK);
186}
187
188}
Cycript