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Side by Side Diff: runtime/include/dart_api.h

Issue 302143004: - Add Dart_EmptyString to return the canonical empty string similar to how (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 6 years, 6 months ago
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1 /* 1 /*
2 * Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file 2 * Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
3 * for details. All rights reserved. Use of this source code is governed by a 3 * for details. All rights reserved. Use of this source code is governed by a
4 * BSD-style license that can be found in the LICENSE file. 4 * BSD-style license that can be found in the LICENSE file.
5 */ 5 */
6 6
7 #ifndef INCLUDE_DART_API_H_ 7 #ifndef INCLUDE_DART_API_H_
8 #define INCLUDE_DART_API_H_ 8 #define INCLUDE_DART_API_H_
9 9
10 /** \mainpage Dart Embedding API Reference 10 /** \mainpage Dart Embedding API Reference
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1255 1255
1256 /* 1256 /*
1257 * ======= 1257 * =======
1258 * Objects 1258 * Objects
1259 * ======= 1259 * =======
1260 */ 1260 */
1261 1261
1262 /** 1262 /**
1263 * Returns the null object. 1263 * Returns the null object.
1264 * 1264 *
1265 * Requires there to be a current isolate.
1266 *
1267 * \return A handle to the null object. 1265 * \return A handle to the null object.
1268 */ 1266 */
1269 DART_EXPORT Dart_Handle Dart_Null(); 1267 DART_EXPORT Dart_Handle Dart_Null();
1270 1268
1271 /** 1269 /**
1270 * Returns the empty string object.
1271 *
1272 * \return A handle to the empty string object.
1273 */
1274 DART_EXPORT Dart_Handle Dart_EmptyString();
1275
1276 /**
1272 * Is this object null? 1277 * Is this object null?
1273 */ 1278 */
1274 DART_EXPORT bool Dart_IsNull(Dart_Handle object); 1279 DART_EXPORT bool Dart_IsNull(Dart_Handle object);
1275 1280
1276 /** 1281 /**
1277 * Checks if the two objects are equal. 1282 * Checks if the two objects are equal.
1278 * 1283 *
1279 * The result of the comparison is returned through the 'equal' 1284 * The result of the comparison is returned through the 'equal'
1280 * parameter. The return value itself is used to indicate success or 1285 * parameter. The return value itself is used to indicate success or
1281 * failure, not equality. 1286 * failure, not equality.
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2724 * NOTE: If multiple callbacks with the same name are registered, only the 2729 * NOTE: If multiple callbacks with the same name are registered, only the
2725 * last callback registered will be remembered. 2730 * last callback registered will be remembered.
2726 */ 2731 */
2727 DART_EXPORT void Dart_RegisterRootServiceRequestCallback( 2732 DART_EXPORT void Dart_RegisterRootServiceRequestCallback(
2728 const char* name, 2733 const char* name,
2729 Dart_ServiceRequestCallback callback, 2734 Dart_ServiceRequestCallback callback,
2730 void* user_data); 2735 void* user_data);
2731 2736
2732 2737
2733 #endif /* INCLUDE_DART_API_H_ */ /* NOLINT */ 2738 #endif /* INCLUDE_DART_API_H_ */ /* NOLINT */
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