forked from mirrors/gecko-dev
77 lines
2.5 KiB
Text
77 lines
2.5 KiB
Text
/* Copyright 2013 The Chromium Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/**
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* This file defines the <code>PPB_VarArray</code> struct providing
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* a way to interact with array vars.
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*/
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label Chrome {
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M29 = 1.0
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};
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[macro="PPB_VAR_ARRAY_INTERFACE"]
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interface PPB_VarArray {
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/**
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* Creates an array var, i.e., a <code>PP_Var</code> with type set to
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* <code>PP_VARTYPE_ARRAY</code>. The array length is set to 0.
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*
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* @return An empty array var, whose reference count is set to 1 on behalf of
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* the caller.
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*/
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PP_Var Create();
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/**
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* Gets an element from the array.
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*
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* @param[in] array An array var.
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* @param[in] index An index indicating which element to return.
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*
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* @return The element at the specified position. The reference count of the
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* element returned is incremented on behalf of the caller. If
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* <code>index</code> is larger than or equal to the array length, an
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* undefined var is returned.
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*/
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PP_Var Get([in] PP_Var array, [in] uint32_t index);
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/**
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* Sets the value of an element in the array.
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*
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* @param[in] array An array var.
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* @param[in] index An index indicating which element to modify. If
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* <code>index</code> is larger than or equal to the array length, the length
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* is updated to be <code>index</code> + 1. Any position in the array that
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* hasn't been set before is set to undefined, i.e., <code>PP_Var</code> of
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* type <code>PP_VARTYPE_UNDEFINED</code>.
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* @param[in] value The value to set. The array holds a reference to it on
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* success.
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*
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* @return A <code>PP_Bool</code> indicating whether the operation succeeds.
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*/
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PP_Bool Set([in] PP_Var array, [in] uint32_t index, [in] PP_Var value);
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/**
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* Gets the array length.
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*
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* @param[in] array An array var.
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*
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* @return The array length.
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*/
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uint32_t GetLength([in] PP_Var array);
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/**
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* Sets the array length.
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*
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* @param[in] array An array var.
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* @param[in] length The new array length. If <code>length</code> is smaller
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* than its current value, the array is truncated to the new length; any
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* elements that no longer fit are removed and the references to them will be
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* released. If <code>length</code> is larger than its current value,
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* undefined vars are appended to increase the array to the specified length.
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*
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* @return A <code>PP_Bool</code> indicating whether the operation succeeds.
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*/
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PP_Bool SetLength([in] PP_Var array, [in] uint32_t length);
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};
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