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// Copyright (c) .NET Foundation and contributors. All rights reserved. Licensed under the Microsoft Reciprocal License. See LICENSE.TXT file in the project root for full license information.
namespace WixToolset.Extensibility
{
using System.Collections.Generic;
using System.Xml.Linq;
/// <summary>
/// Base class for creating a compiler extension.
/// </summary>
public abstract class CompilerExtension : ICompilerExtension
{
/// <summary>
/// Gets or sets the compiler core for the extension.
/// </summary>
/// <value>Compiler core for the extension.</value>
public ICompilerCore Core { get; set; }
/// <summary>
/// Gets the schema namespace for this extension.
/// </summary>
/// <value>Schema namespace supported by this extension.</value>
public XNamespace Namespace { get; protected set; }
/// <summary>
/// Called at the beginning of the compilation of a source file.
/// </summary>
public virtual void Initialize()
{
}
/// <summary>
/// Processes an attribute for the Compiler.
/// </summary>
/// <param name="parentElement">Parent element of attribute.</param>
/// <param name="attribute">Attribute to process.</param>
/// <param name="context">Extra information about the context in which this element is being parsed.</param>
public virtual void ParseAttribute(XElement parentElement, XAttribute attribute, IDictionary<string, string> context)
{
this.Core.UnexpectedAttribute(parentElement, attribute);
}
/// <summary>
/// Processes an element for the Compiler.
/// </summary>
/// <param name="parentElement">Parent element of element to process.</param>
/// <param name="element">Element to process.</param>
/// <param name="contextValues">Extra information about the context in which this element is being parsed.</param>
public virtual void ParseElement(XElement parentElement, XElement element, IDictionary<string, string> context)
{
this.Core.UnexpectedElement(parentElement, element);
}
/// <summary>
/// Processes an element for the Compiler, with the ability to supply a component keypath.
/// </summary>
/// <param name="parentElement">Parent element of element to process.</param>
/// <param name="element">Element to process.</param>
/// <param name="keyPath">Explicit key path.</param>
/// <param name="contextValues">Extra information about the context in which this element is being parsed.</param>
public virtual ComponentKeyPath ParsePossibleKeyPathElement(XElement parentElement, XElement element, IDictionary<string, string> context)
{
this.ParseElement(parentElement, element, context);
return null;
}
/// <summary>
/// Called at the end of the compilation of a source file.
/// </summary>
public virtual void Finish()
{
}
}
}
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