Shared library for embedding VM in Android apps.

samples/android_embedder/builtin_nolib.cc

Index: samples/android_embedder/builtin_nolib.cc
===================================================================
--- samples/android_embedder/builtin_nolib.cc	(revision 0)
+++ samples/android_embedder/builtin_nolib.cc	(revision 0)
@@ -0,0 +1,68 @@
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+#include <stdio.h>
+
+#include "include/dart_api.h"
+
+#include "bin/builtin.h"
+#include "bin/dartutils.h"
+#include "bin/io_natives.h"
+
+Builtin::builtin_lib_props Builtin::builtin_libraries_[] = {
+  /* { url_, source_, patch_url_, patch_source_, has_natives_ } */
+  { DartUtils::kBuiltinLibURL, NULL, NULL, NULL, true },
+  { DartUtils::kJsonLibURL, NULL, NULL, NULL, false },
+  { DartUtils::kUriLibURL, NULL, NULL, NULL, false },
+  { DartUtils::kCryptoLibURL, NULL, NULL, NULL, false },
+  { DartUtils::kIOLibURL, NULL, NULL, NULL, true  },
+  { DartUtils::kUtfLibURL, NULL, NULL, NULL, false }
+};
+
+
+Dart_Handle Builtin::Source(BuiltinLibraryId id) {
+  ASSERT((sizeof(builtin_libraries_) / sizeof(builtin_lib_props)) ==
+         kInvalidLibrary);
+  return Dart_NewApiError("Unreachable code in Builtin::Source (%d).", id);
+}
+
+/**
+ * Looks up native functions in both libdart_builtin and libdart_io.
+ */
+Dart_NativeFunction Builtin::NativeLookup(Dart_Handle name,
+                                          int argument_count) {
+  return BuiltinNativeLookup(name, argument_count);
+}
+
+void Builtin::SetNativeResolver(BuiltinLibraryId id) {
+  ASSERT((sizeof(builtin_libraries_) / sizeof(builtin_lib_props)) ==
+         kInvalidLibrary);
+  ASSERT(id >= kBuiltinLibrary && id < kInvalidLibrary);
+  if (builtin_libraries_[id].has_natives_) {
+    Dart_Handle url = DartUtils::NewString(builtin_libraries_[id].url_);
+    Dart_Handle library = Dart_LookupLibrary(url);
+    ASSERT(!Dart_IsError(library));
+    // Setup the native resolver for built in library functions.
+    DART_CHECK_VALID(Dart_SetNativeResolver(library, NativeLookup));
+  }
+}
+
+
+Dart_Handle Builtin::LoadAndCheckLibrary(BuiltinLibraryId id) {
+  ASSERT((sizeof(builtin_libraries_) / sizeof(builtin_lib_props)) ==
+         kInvalidLibrary);
+  ASSERT(id >= kBuiltinLibrary && id < kInvalidLibrary);
+  Dart_Handle url = DartUtils::NewString(builtin_libraries_[id].url_);
+  Dart_Handle library = Dart_LookupLibrary(url);
+  if (Dart_IsError(library)) {
+    ASSERT(id > kUtfLibrary);
+    library = Dart_LoadLibrary(url, Source(id));
+    if (!Dart_IsError(library) && (builtin_libraries_[id].has_natives_)) {
+      // Setup the native resolver for built in library functions.
+      DART_CHECK_VALID(Dart_SetNativeResolver(library, NativeLookup));
+    }
+  }
+  DART_CHECK_VALID(library);
+  return library;
+}