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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 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. |
| 4 |
| 5 #include "vm/bootstrap.h" |
| 6 |
| 7 #include "include/dart_api.h" |
| 8 |
| 9 #include "vm/bootstrap_natives.h" |
| 10 #include "vm/dart_api_impl.h" |
| 11 #include "vm/object.h" |
| 12 #include "vm/object_store.h" |
| 13 |
| 14 namespace dart { |
| 15 |
| 16 // List all native functions implemented in the vm or core bootstrap dart |
| 17 // libraries so that we can resolve the native function to it's entry |
| 18 // point. |
| 19 static struct NativeEntries { |
| 20 const char* name_; |
| 21 Dart_NativeFunction function_; |
| 22 int argument_count_; |
| 23 } BootStrapEntries[] = { |
| 24 BOOTSTRAP_NATIVE_LIST(REGISTER_NATIVE_ENTRY) |
| 25 }; |
| 26 |
| 27 |
| 28 static Dart_NativeFunction NativeLookup(Dart_Handle name, |
| 29 int argument_count) { |
| 30 const Object& obj = Object::Handle(Api::UnwrapHandle(name)); |
| 31 if (!obj.IsString()) { |
| 32 return NULL; |
| 33 } |
| 34 const char* function_name = obj.ToCString(); |
| 35 ASSERT(function_name != NULL); |
| 36 int num_entries = sizeof(BootStrapEntries) / sizeof(struct NativeEntries); |
| 37 for (int i = 0; i < num_entries; i++) { |
| 38 struct NativeEntries* entry = &(BootStrapEntries[i]); |
| 39 if (!strncmp(function_name, entry->name_, strlen(entry->name_))) { |
| 40 if (entry->argument_count_ == argument_count) { |
| 41 return reinterpret_cast<Dart_NativeFunction>(entry->function_); |
| 42 } else { |
| 43 // Wrong number of arguments. |
| 44 // TODO(regis): Should we pass a buffer for error reporting? |
| 45 return NULL; |
| 46 } |
| 47 } |
| 48 } |
| 49 return NULL; |
| 50 } |
| 51 |
| 52 |
| 53 void Bootstrap::SetupNativeResolver() { |
| 54 Library& library = Library::Handle(Library::CoreLibrary()); |
| 55 ASSERT(!library.IsNull()); |
| 56 library.set_native_entry_resolver( |
| 57 reinterpret_cast<Dart_NativeEntryResolver>(NativeLookup)); |
| 58 library = Library::CoreImplLibrary(); |
| 59 ASSERT(!library.IsNull()); |
| 60 library.set_native_entry_resolver( |
| 61 reinterpret_cast<Dart_NativeEntryResolver>(NativeLookup)); |
| 62 } |
| 63 |
| 64 } // namespace dart |
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