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37d3cebc42
* Merge master to dev (#4) * Misc. clean-ups related to removing unneeded PowerShell Language Service code. * Remove unneeded files and clean up remaining code. * Enable file change tracking with Workspace and EditorSession. * Merge ServiceHost xUnit test project into dev. (#5) * Setup standard src, test folder structure. Add unit test project. * Actually stage the deletes. Update .gitignore
111 lines
3.7 KiB
C#
111 lines
3.7 KiB
C#
//
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// Copyright (c) Microsoft. All rights reserved.
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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
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//
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using System.Diagnostics;
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namespace Microsoft.SqlTools.EditorServices
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{
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/// <summary>
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/// Provides details about a position in a file buffer. All
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/// positions are expressed in 1-based positions (i.e. the
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/// first line and column in the file is position 1,1).
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/// </summary>
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[DebuggerDisplay("Position = {Line}:{Column}")]
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public class BufferPosition
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{
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#region Properties
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/// <summary>
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/// Provides an instance that represents a position that has not been set.
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/// </summary>
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public static readonly BufferPosition None = new BufferPosition(-1, -1);
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/// <summary>
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/// Gets the line number of the position in the buffer.
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/// </summary>
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public int Line { get; private set; }
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/// <summary>
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/// Gets the column number of the position in the buffer.
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/// </summary>
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public int Column { get; private set; }
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#endregion
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#region Constructors
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/// <summary>
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/// Creates a new instance of the BufferPosition class.
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/// </summary>
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/// <param name="line">The line number of the position.</param>
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/// <param name="column">The column number of the position.</param>
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public BufferPosition(int line, int column)
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{
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this.Line = line;
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this.Column = column;
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}
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#endregion
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#region Public Methods
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/// <summary>
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/// Compares two instances of the BufferPosition class.
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/// </summary>
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/// <param name="obj">The object to which this instance will be compared.</param>
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/// <returns>True if the positions are equal, false otherwise.</returns>
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public override bool Equals(object obj)
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{
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if (!(obj is BufferPosition))
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{
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return false;
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}
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BufferPosition other = (BufferPosition)obj;
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return
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this.Line == other.Line &&
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this.Column == other.Column;
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}
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/// <summary>
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/// Calculates a unique hash code that represents this instance.
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/// </summary>
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/// <returns>A hash code representing this instance.</returns>
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public override int GetHashCode()
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{
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return this.Line.GetHashCode() ^ this.Column.GetHashCode();
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}
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/// <summary>
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/// Compares two positions to check if one is greater than the other.
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/// </summary>
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/// <param name="positionOne">The first position to compare.</param>
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/// <param name="positionTwo">The second position to compare.</param>
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/// <returns>True if positionOne is greater than positionTwo.</returns>
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public static bool operator >(BufferPosition positionOne, BufferPosition positionTwo)
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{
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return
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(positionOne != null && positionTwo == null) ||
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(positionOne.Line > positionTwo.Line) ||
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(positionOne.Line == positionTwo.Line &&
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positionOne.Column > positionTwo.Column);
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}
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/// <summary>
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/// Compares two positions to check if one is less than the other.
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/// </summary>
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/// <param name="positionOne">The first position to compare.</param>
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/// <param name="positionTwo">The second position to compare.</param>
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/// <returns>True if positionOne is less than positionTwo.</returns>
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public static bool operator <(BufferPosition positionOne, BufferPosition positionTwo)
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{
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return positionTwo > positionOne;
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}
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#endregion
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}
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}
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