72 lines
2.7 KiB
C#
72 lines
2.7 KiB
C#
// Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of this
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// software and associated documentation files (the "Software"), to deal in the Software
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// without restriction, including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
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// to whom the Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all copies or
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// substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
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// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using System;
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using System.Globalization;
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namespace Unity.CodeEditor.Utils
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{
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/// <summary>
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/// Contains exception-throwing helper methods.
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/// </summary>
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internal static class ThrowUtil
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{
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/// <summary>
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/// Throws an ArgumentNullException if <paramref name="val"/> is null; otherwise
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/// returns val.
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/// </summary>
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/// <example>
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/// Use this method to throw an ArgumentNullException when using parameters for base
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/// constructor calls.
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/// <code>
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/// public VisualLineText(string text) : base(ThrowUtil.CheckNotNull(text, "text").Length)
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/// </code>
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/// </example>
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internal static T CheckNotNull<T>(T val, string parameterName) where T : class
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{
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if (val == null)
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throw new ArgumentNullException(parameterName);
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return val;
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}
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internal static int CheckNotNegative(int val, string parameterName)
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{
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if (val < 0)
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throw new ArgumentOutOfRangeException(parameterName, val, "value must not be negative");
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return val;
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}
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internal static int CheckInRangeInclusive(int val, string parameterName, int lower, int upper)
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{
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if (val < lower || val > upper)
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throw new ArgumentOutOfRangeException(parameterName, val, "Expected: " + lower.ToString(CultureInfo.InvariantCulture) + " <= " + parameterName + " <= " + upper.ToString(CultureInfo.InvariantCulture));
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return val;
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}
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internal static InvalidOperationException NoDocumentAssigned()
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{
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return new InvalidOperationException("Document is null");
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}
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internal static InvalidOperationException NoValidCaretPosition()
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{
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return new InvalidOperationException("Could not find a valid caret position in the line");
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}
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}
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}
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