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| 1 /* Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
| 2 * Use of this source code is governed by a BSD-style license that can be | |
| 3 * found in the LICENSE file. | |
| 4 */ | |
| 5 | |
| 6 /** | |
| 7 * This file defines the <code>PPB_VarArray_Dev</code> struct providing | |
| 8 * a way to interact with array vars. | |
| 9 */ | |
| 10 | |
| 11 label Chrome { | |
| 12 M27 = 0.1 | |
| 13 }; | |
| 14 | |
| 15 [macro="PPB_VAR_ARRAY_DEV_INTERFACE"] | |
| 16 interface PPB_VarArray_Dev { | |
| 17 /** | |
| 18 * Creates an array var, i.e., a <code>PP_Var</code> with type set to | |
| 19 * <code>PP_VARTYPE_ARRAY</code>. The array length is set to 0. | |
| 20 * | |
| 21 * @return An empty array var, whose reference count is set to 1 on behalf of | |
| 22 * the caller. | |
| 23 */ | |
| 24 PP_Var Create(); | |
| 25 | |
| 26 /** | |
| 27 * Gets an element from the array. | |
| 28 * | |
| 29 * @param[in] array An array var. | |
| 30 * @param[in] index An index indicating which element to return. | |
| 31 * | |
| 32 * @return The element at the specified position. The reference count is | |
| 33 * incremented on behalf of the caller. If <code>index</code> is larger than | |
| 34 * or equal to the array length, an undefined var is returned. | |
| 35 */ | |
| 36 PP_Var Get([in] PP_Var array, [in] uint32_t index); | |
| 37 | |
| 38 /** | |
| 39 * Sets the value of an element in the array. | |
| 40 * | |
| 41 * @param[in] array An array var. | |
| 42 * @param[in] index An index indicating which element to modify. If | |
| 43 * <code>index</code> is larger than or equal to the array length, the length | |
| 44 * is updated to be <code>index</code> + 1. Any position in the array that | |
| 45 * hasn't been set before is set to undefined, i.e., <code>PP_Var</code> of | |
| 46 * type <code>PP_VARTYPE_UNDEFINED</code>. | |
| 47 * @param[in] value The value to set. The array holds a reference to it on | |
| 48 * success. | |
| 49 * | |
| 50 * @return A <code>PP_Bool</code> indicating whether the operation succeeds. | |
| 51 */ | |
| 52 PP_Bool Set([in] PP_Var array, [in] uint32_t index, [in] PP_Var value); | |
| 53 | |
| 54 /** | |
| 55 * Gets the array length. | |
| 56 * | |
| 57 * @param[in] array An array var. | |
| 58 * | |
| 59 * @return The array length. | |
| 60 */ | |
| 61 uint32_t GetLength([in] PP_Var array); | |
| 62 | |
| 63 /** | |
| 64 * Sets the array length. | |
| 65 * | |
| 66 * @param[in] array An array var. | |
| 67 * @param[in] length The new array length. If <code>length</code> is smaller | |
| 68 * than its current value, the array is truncated to the new length; any | |
| 69 * elements that no longer fit are removed. If <code>length</code> is larger | |
| 70 * than its current value, undefined vars are appended to increase the array | |
| 71 * to the specified length. | |
| 72 * | |
| 73 * @return A <code>PP_Bool</code> indicating whether the operation succeeds. | |
| 74 */ | |
| 75 PP_Bool SetLength([in] PP_Var array, [in] uint32_t length); | |
| 76 }; | |
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