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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/bootstrap.h" | 5 #include "vm/bootstrap.h" |
6 | 6 |
7 #include "include/dart_api.h" | 7 #include "include/dart_api.h" |
8 | 8 |
9 #include "vm/bootstrap_natives.h" | 9 #include "vm/bootstrap_natives.h" |
10 #include "vm/compiler.h" | 10 #include "vm/compiler.h" |
11 #include "vm/dart_api_impl.h" | 11 #include "vm/dart_api_impl.h" |
12 #include "vm/object.h" | 12 #include "vm/object.h" |
13 #include "vm/object_store.h" | 13 #include "vm/object_store.h" |
14 #include "vm/symbols.h" | 14 #include "vm/symbols.h" |
15 | 15 |
16 namespace dart { | 16 namespace dart { |
17 | 17 |
18 DEFINE_FLAG(bool, print_bootstrap, false, "Print the bootstrap source."); | 18 DEFINE_FLAG(bool, print_bootstrap, false, "Print the bootstrap source."); |
19 | 19 |
20 #define INIT_LIBRARY(index, name, source, patch) \ | 20 #define INIT_LIBRARY(index, name, source, patch) \ |
21 { index, \ | 21 { index, \ |
22 "dart:"#name, source, \ | 22 "dart:"#name, source, \ |
23 "dart:"#name"-patch", patch } \ | 23 "dart:"#name"-patch", patch } \ |
24 | 24 |
25 typedef struct { | 25 typedef struct { |
26 intptr_t index_; | 26 intptr_t index_; |
27 const char* uri_; | 27 const char* uri_; |
28 const char** source_paths_; | 28 const char* source_; |
29 const char* patch_uri_; | 29 const char* patch_uri_; |
30 const char* patch_source_; | 30 const char* patch_source_; |
31 } bootstrap_lib_props; | 31 } bootstrap_lib_props; |
32 | 32 |
33 | 33 |
34 static bootstrap_lib_props bootstrap_libraries[] = { | 34 static bootstrap_lib_props bootstrap_libraries[] = { |
35 INIT_LIBRARY(ObjectStore::kCore, | 35 INIT_LIBRARY(ObjectStore::kCore, |
36 core, | 36 core, |
37 Bootstrap::corelib_source_paths_, | 37 Bootstrap::corelib_source_, |
38 Bootstrap::corelib_patch_), | 38 Bootstrap::corelib_patch_), |
39 INIT_LIBRARY(ObjectStore::kAsync, | 39 INIT_LIBRARY(ObjectStore::kAsync, |
40 async, | 40 async, |
41 Bootstrap::async_source_paths_, | 41 Bootstrap::async_source_, |
42 Bootstrap::async_patch_), | 42 Bootstrap::async_patch_), |
43 INIT_LIBRARY(ObjectStore::kCollection, | 43 INIT_LIBRARY(ObjectStore::kCollection, |
44 collection, | 44 collection, |
45 Bootstrap::collection_source_paths_, | 45 Bootstrap::collection_source_, |
46 Bootstrap::collection_patch_), | 46 Bootstrap::collection_patch_), |
47 INIT_LIBRARY(ObjectStore::kCollectionDev, | 47 INIT_LIBRARY(ObjectStore::kCollectionDev, |
48 _collection-dev, | 48 _collection-dev, |
49 Bootstrap::collection_dev_source_paths_, | 49 Bootstrap::collection_dev_source_, |
50 Bootstrap::collection_dev_patch_), | 50 Bootstrap::collection_dev_patch_), |
51 INIT_LIBRARY(ObjectStore::kCrypto, | 51 INIT_LIBRARY(ObjectStore::kCrypto, |
52 crypto, | 52 crypto, |
53 Bootstrap::crypto_source_paths_, | 53 Bootstrap::crypto_source_, |
54 NULL), | 54 NULL), |
55 INIT_LIBRARY(ObjectStore::kIsolate, | 55 INIT_LIBRARY(ObjectStore::kIsolate, |
56 isolate, | 56 isolate, |
57 Bootstrap::isolate_source_paths_, | 57 Bootstrap::isolate_source_, |
58 Bootstrap::isolate_patch_), | 58 Bootstrap::isolate_patch_), |
59 INIT_LIBRARY(ObjectStore::kJson, | 59 INIT_LIBRARY(ObjectStore::kJson, |
60 json, | 60 json, |
61 Bootstrap::json_source_paths_, | 61 Bootstrap::json_source_, |
62 Bootstrap::json_patch_), | 62 Bootstrap::json_patch_), |
63 INIT_LIBRARY(ObjectStore::kMath, | 63 INIT_LIBRARY(ObjectStore::kMath, |
64 math, | 64 math, |
65 Bootstrap::math_source_paths_, | 65 Bootstrap::math_source_, |
66 Bootstrap::math_patch_), | 66 Bootstrap::math_patch_), |
67 INIT_LIBRARY(ObjectStore::kMirrors, | 67 INIT_LIBRARY(ObjectStore::kMirrors, |
68 mirrors, | 68 mirrors, |
69 Bootstrap::mirrors_source_paths_, | 69 Bootstrap::mirrors_source_, |
70 Bootstrap::mirrors_patch_), | 70 Bootstrap::mirrors_patch_), |
71 INIT_LIBRARY(ObjectStore::kTypedData, | 71 INIT_LIBRARY(ObjectStore::kTypedData, |
72 typed_data, | 72 typed_data, |
73 Bootstrap::typed_data_source_paths_, | 73 Bootstrap::typed_data_source_, |
74 Bootstrap::typed_data_patch_), | 74 Bootstrap::typed_data_patch_), |
75 INIT_LIBRARY(ObjectStore::kUtf, | 75 INIT_LIBRARY(ObjectStore::kUtf, |
76 utf, | 76 utf, |
77 Bootstrap::utf_source_paths_, | 77 Bootstrap::utf_source_, |
78 NULL), | 78 NULL), |
79 INIT_LIBRARY(ObjectStore::kUri, | 79 INIT_LIBRARY(ObjectStore::kUri, |
80 uri, | 80 uri, |
81 Bootstrap::uri_source_paths_, | 81 Bootstrap::uri_source_, |
82 NULL), | 82 NULL), |
83 | 83 |
84 { ObjectStore::kNone, NULL, NULL, NULL, NULL } | 84 { ObjectStore::kNone, NULL, NULL, NULL, NULL } |
85 }; | 85 }; |
86 | 86 |
87 | 87 |
88 static RawString* GetLibrarySource(const Library& lib, | 88 static RawString* GetLibrarySource(intptr_t index, bool patch) { |
89 const String& uri, | 89 // TODO(asiva): Replace with actual read of the source file. |
90 bool patch) { | 90 const char* source = patch ? bootstrap_libraries[index].patch_source_ : |
91 // First check if this is a valid boot strap library and find it's index | 91 bootstrap_libraries[index].source_; |
92 // in the 'bootstrap_libraries' table above. | 92 ASSERT(source != NULL); |
93 intptr_t index = 0; | 93 return String::New(source, Heap::kOld); |
94 const String& lib_uri = String::Handle(lib.url()); | |
95 while (bootstrap_libraries[index].index_ != ObjectStore::kNone) { | |
96 if (lib_uri.Equals(bootstrap_libraries[index].uri_)) { | |
97 break; | |
98 } | |
99 index += 1; | |
100 } | |
101 if (bootstrap_libraries[index].index_ == ObjectStore::kNone) { | |
102 return String::null(); // Library is not a boot strap library. | |
103 } | |
104 | |
105 if (patch) { | |
106 // TODO(asiva): Replace with actual read of the source file. | |
107 const char* source = bootstrap_libraries[index].patch_source_; | |
108 ASSERT(source != NULL); | |
109 return String::New(source, Heap::kOld); | |
110 } | |
111 | |
112 // Try to read the source using the path specified for the uri. | |
113 const char** source_paths = bootstrap_libraries[index].source_paths_; | |
114 if (source_paths == NULL) { | |
115 return String::null(); // No path mapping information exists for library. | |
116 } | |
117 intptr_t i = 0; | |
118 const char* source_path = NULL; | |
119 while (source_paths[i] != NULL) { | |
120 if (uri.Equals(source_paths[i])) { | |
121 source_path = source_paths[i + 1]; | |
122 break; | |
123 } | |
124 i += 2; | |
125 } | |
126 if (source_path == NULL) { | |
127 return String::null(); // Uri does not exist in path mapping information. | |
128 } | |
129 | |
130 Dart_FileOpenCallback file_open = Isolate::file_open_callback(); | |
131 Dart_FileReadCallback file_read = Isolate::file_read_callback(); | |
132 Dart_FileCloseCallback file_close = Isolate::file_close_callback(); | |
133 if (file_open == NULL || file_read == NULL || file_close == NULL) { | |
134 return String::null(); // File operations are not supported. | |
135 } | |
136 | |
137 void* stream = (*file_open)(source_path, false); | |
138 if (stream == NULL) { | |
139 return String::null(); | |
140 } | |
141 | |
142 const uint8_t* utf8_array = NULL; | |
143 intptr_t file_length = -1; | |
144 (*file_read)(&utf8_array, &file_length, stream); | |
145 if (file_length == -1) { | |
146 return String::null(); | |
147 } | |
148 ASSERT(utf8_array != NULL); | |
149 | |
150 (*file_close)(stream); | |
151 | |
152 return String::FromUTF8(utf8_array, file_length); | |
153 } | |
154 | |
155 | |
156 static RawError* Compile(const Library& library, const Script& script) { | |
157 if (FLAG_print_bootstrap) { | |
158 OS::Print("Bootstrap source '%s':\n%s\n", | |
159 String::Handle(script.url()).ToCString(), | |
160 String::Handle(script.Source()).ToCString()); | |
161 } | |
162 bool update_lib_status = (script.kind() == RawScript::kScriptTag || | |
163 script.kind() == RawScript::kLibraryTag); | |
164 if (update_lib_status) { | |
165 library.SetLoadInProgress(); | |
166 } | |
167 const Error& error = Error::Handle(Compiler::Compile(library, script)); | |
168 if (update_lib_status) { | |
169 if (error.IsNull()) { | |
170 library.SetLoaded(); | |
171 } else { | |
172 library.SetLoadError(); | |
173 } | |
174 } | |
175 return error.raw(); | |
176 } | 94 } |
177 | 95 |
178 | 96 |
179 static Dart_Handle LoadPartSource(Isolate* isolate, | 97 static Dart_Handle LoadPartSource(Isolate* isolate, |
180 const Library& lib, | 98 const Library& lib, |
181 const String& uri) { | 99 const String& uri) { |
182 const String& part_source = String::Handle( | 100 // TODO(asiva): For now we return an error here, once we start |
183 isolate, GetLibrarySource(lib, uri, false)); | 101 // loading libraries from the real source this would have to call the |
184 const String& lib_uri = String::Handle(isolate, lib.url()); | 102 // file read callback here and invoke Compiler::Compile on it. |
185 if (part_source.IsNull()) { | 103 return Dart_NewApiError("Unable to load source '%s' ", uri.ToCString()); |
186 return Dart_NewApiError("Unable to read part file '%s' of library '%s'", | |
187 uri.ToCString(), lib_uri.ToCString()); | |
188 } | |
189 | |
190 // Prepend the library URI to form a unique script URI for the part. | |
191 const Array& strings = Array::Handle(isolate, Array::New(3)); | |
192 strings.SetAt(0, lib_uri); | |
193 strings.SetAt(1, Symbols::Slash()); | |
194 strings.SetAt(2, uri); | |
195 const String& part_uri = String::Handle(isolate, String::ConcatAll(strings)); | |
196 | |
197 // Create a script object and compile the part. | |
198 const Script& part_script = Script::Handle( | |
199 isolate, Script::New(part_uri, part_source, RawScript::kSourceTag)); | |
200 const Error& error = Error::Handle(isolate, Compile(lib, part_script)); | |
201 return Api::NewHandle(isolate, error.raw()); | |
202 } | 104 } |
203 | 105 |
204 | 106 |
205 static Dart_Handle BootstrapLibraryTagHandler(Dart_LibraryTag tag, | 107 static Dart_Handle BootstrapLibraryTagHandler(Dart_LibraryTag tag, |
206 Dart_Handle library, | 108 Dart_Handle library, |
207 Dart_Handle uri) { | 109 Dart_Handle uri) { |
208 Isolate* isolate = Isolate::Current(); | 110 Isolate* isolate = Isolate::Current(); |
209 if (!Dart_IsLibrary(library)) { | 111 if (!Dart_IsLibrary(library)) { |
210 return Dart_NewApiError("not a library"); | 112 return Dart_NewApiError("not a library"); |
211 } | 113 } |
212 if (!Dart_IsString(uri)) { | 114 if (!Dart_IsString(uri)) { |
213 return Dart_NewApiError("uri is not a string"); | 115 return Dart_NewApiError("uri is not a string"); |
214 } | 116 } |
| 117 const String& uri_str = Api::UnwrapStringHandle(isolate, uri); |
| 118 ASSERT(!uri_str.IsNull()); |
| 119 bool is_dart_scheme_uri = uri_str.StartsWith(Symbols::DartScheme()); |
| 120 if (!is_dart_scheme_uri) { |
| 121 // The bootstrap tag handler can only handle dart scheme uris. |
| 122 return Dart_NewApiError("Do not know how to load '%s' ", |
| 123 uri_str.ToCString()); |
| 124 } |
215 if (tag == kCanonicalizeUrl) { | 125 if (tag == kCanonicalizeUrl) { |
216 // In the boot strap loader we do not try and do any canonicalization. | 126 // Dart Scheme URIs do not need any canonicalization. |
217 return uri; | 127 return uri; |
218 } | 128 } |
219 const String& uri_str = Api::UnwrapStringHandle(isolate, uri); | |
220 ASSERT(!uri_str.IsNull()); | |
221 if (tag == kImportTag) { | 129 if (tag == kImportTag) { |
222 // We expect the core bootstrap libraries to only import other | 130 // We expect the core bootstrap libraries to only import other |
223 // core bootstrap libraries. | 131 // core bootstrap libraries. |
224 // We have precreated all the bootstrap library objects hence | 132 // We have precreated all the bootstrap library objects hence |
225 // we do not expect to be called back with the tag set to kImportTag. | 133 // we do not expect to be called back with the tag set to kImportTag. |
226 // The bootstrap process explicitly loads all the libraries one by one. | 134 // The bootstrap process explicitly loads all the libraries one by one. |
227 return Dart_NewApiError("Invalid import of '%s' in a bootstrap library", | 135 return Dart_NewApiError("Invalid import of '%s' in a bootstrap library", |
228 uri_str.ToCString()); | 136 uri_str.ToCString()); |
229 } | 137 } |
230 ASSERT(tag == kSourceTag); | 138 ASSERT(tag == kSourceTag); |
231 const Library& lib = Api::UnwrapLibraryHandle(isolate, library); | 139 const Library& lib = Api::UnwrapLibraryHandle(isolate, library); |
232 ASSERT(!lib.IsNull()); | 140 ASSERT(!lib.IsNull()); |
233 return LoadPartSource(isolate, lib, uri_str); | 141 return LoadPartSource(isolate, lib, uri_str); |
234 } | 142 } |
235 | 143 |
236 | 144 |
| 145 static RawError* Compile(const Library& library, const Script& script) { |
| 146 if (FLAG_print_bootstrap) { |
| 147 OS::Print("Bootstrap source '%s':\n%s\n", |
| 148 String::Handle(script.url()).ToCString(), |
| 149 String::Handle(script.Source()).ToCString()); |
| 150 } |
| 151 library.SetLoadInProgress(); |
| 152 const Error& error = Error::Handle(Compiler::Compile(library, script)); |
| 153 if (error.IsNull()) { |
| 154 library.SetLoaded(); |
| 155 } else { |
| 156 library.SetLoadError(); |
| 157 } |
| 158 return error.raw(); |
| 159 } |
| 160 |
| 161 |
237 RawError* Bootstrap::LoadandCompileScripts() { | 162 RawError* Bootstrap::LoadandCompileScripts() { |
238 Isolate* isolate = Isolate::Current(); | 163 Isolate* isolate = Isolate::Current(); |
239 String& uri = String::Handle(); | 164 String& uri = String::Handle(); |
240 String& patch_uri = String::Handle(); | 165 String& patch_uri = String::Handle(); |
241 String& source = String::Handle(); | 166 String& source = String::Handle(); |
242 Script& script = Script::Handle(); | 167 Script& script = Script::Handle(); |
243 Library& lib = Library::Handle(); | 168 Library& lib = Library::Handle(); |
244 Error& error = Error::Handle(); | 169 Error& error = Error::Handle(); |
245 Dart_LibraryTagHandler saved_tag_handler = isolate->library_tag_handler(); | 170 Dart_LibraryTagHandler saved_tag_handler = isolate->library_tag_handler(); |
246 | 171 |
(...skipping 18 matching lines...) Expand all Loading... |
265 bootstrap_libraries[i].index_, lib); | 190 bootstrap_libraries[i].index_, lib); |
266 i = i + 1; | 191 i = i + 1; |
267 } | 192 } |
268 | 193 |
269 // Load and compile bootstrap libraries. | 194 // Load and compile bootstrap libraries. |
270 i = 0; | 195 i = 0; |
271 while (bootstrap_libraries[i].index_ != ObjectStore::kNone) { | 196 while (bootstrap_libraries[i].index_ != ObjectStore::kNone) { |
272 uri = Symbols::New(bootstrap_libraries[i].uri_); | 197 uri = Symbols::New(bootstrap_libraries[i].uri_); |
273 lib = Library::LookupLibrary(uri); | 198 lib = Library::LookupLibrary(uri); |
274 ASSERT(!lib.IsNull()); | 199 ASSERT(!lib.IsNull()); |
275 source = GetLibrarySource(lib, uri, false); | 200 source = GetLibrarySource(i, false); |
276 if (source.IsNull()) { | |
277 error ^= Api::UnwrapErrorHandle( | |
278 isolate, Api::NewError("Unable to find dart source for %s", | |
279 uri.ToCString())).raw(); | |
280 break; | |
281 } | |
282 script = Script::New(uri, source, RawScript::kLibraryTag); | 201 script = Script::New(uri, source, RawScript::kLibraryTag); |
283 error = Compile(lib, script); | 202 error = Compile(lib, script); |
284 if (!error.IsNull()) { | 203 if (!error.IsNull()) { |
285 break; | 204 break; |
286 } | 205 } |
287 // If a patch exists, load and patch the script. | 206 // If a patch exists, load and patch the script. |
288 if (bootstrap_libraries[i].patch_source_ != NULL) { | 207 if (bootstrap_libraries[i].patch_source_ != NULL) { |
289 patch_uri = String::New(bootstrap_libraries[i].patch_uri_, | 208 patch_uri = String::New(bootstrap_libraries[i].patch_uri_, |
290 Heap::kOld); | 209 Heap::kOld); |
291 source = GetLibrarySource(lib, uri, true); | 210 source = GetLibrarySource(i, true); |
292 if (source.IsNull()) { | |
293 error ^= Api::UnwrapErrorHandle( | |
294 isolate, Api::NewError("Unable to find dart patch source for %s", | |
295 uri.ToCString())).raw(); | |
296 break; | |
297 } | |
298 script = Script::New(patch_uri, source, RawScript::kPatchTag); | 211 script = Script::New(patch_uri, source, RawScript::kPatchTag); |
299 error = lib.Patch(script); | 212 error = lib.Patch(script); |
300 if (!error.IsNull()) { | 213 if (!error.IsNull()) { |
301 break; | 214 break; |
302 } | 215 } |
303 } | 216 } |
304 i = i + 1; | 217 i = i + 1; |
305 } | 218 } |
306 if (error.IsNull()) { | 219 if (error.IsNull()) { |
307 SetupNativeResolver(); | 220 SetupNativeResolver(); |
308 } | 221 } |
309 | 222 |
310 // Exit the Dart scope. | 223 // Exit the Dart scope. |
311 Dart_ExitScope(); | 224 Dart_ExitScope(); |
312 | 225 |
313 // Restore the library tag handler for the isolate. | 226 // Restore the library tag handler for the isolate. |
314 isolate->set_library_tag_handler(saved_tag_handler); | 227 isolate->set_library_tag_handler(saved_tag_handler); |
315 | 228 |
316 return error.raw(); | 229 return error.raw(); |
317 } | 230 } |
318 | 231 |
319 } // namespace dart | 232 } // namespace dart |
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