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ProjectChanges.cs
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ProjectChanges.cs
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// Copyright (c) Microsoft. All Rights Reserved. Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System.Collections.Generic;
using Microsoft.CodeAnalysis.Diagnostics;
namespace Microsoft.CodeAnalysis
{
public struct ProjectChanges
{
private readonly Project _newProject;
private readonly Project _oldProject;
internal ProjectChanges(Project newProject, Project oldProject)
{
_newProject = newProject;
_oldProject = oldProject;
}
public ProjectId ProjectId => _newProject.Id;
public Project OldProject => _oldProject;
public Project NewProject => _newProject;
public IEnumerable<ProjectReference> GetAddedProjectReferences()
{
var oldRefs = new HashSet<ProjectReference>(_oldProject.ProjectReferences);
foreach (var reference in _newProject.ProjectReferences)
{
if (!oldRefs.Contains(reference))
{
yield return reference;
}
}
}
public IEnumerable<ProjectReference> GetRemovedProjectReferences()
{
var newRefs = new HashSet<ProjectReference>(_newProject.ProjectReferences);
foreach (var reference in _oldProject.ProjectReferences)
{
if (!newRefs.Contains(reference))
{
yield return reference;
}
}
}
public IEnumerable<MetadataReference> GetAddedMetadataReferences()
{
var oldMetadata = new HashSet<MetadataReference>(_oldProject.MetadataReferences);
foreach (var metadata in _newProject.MetadataReferences)
{
if (!oldMetadata.Contains(metadata))
{
yield return metadata;
}
}
}
public IEnumerable<MetadataReference> GetRemovedMetadataReferences()
{
var newMetadata = new HashSet<MetadataReference>(_newProject.MetadataReferences);
foreach (var metadata in _oldProject.MetadataReferences)
{
if (!newMetadata.Contains(metadata))
{
yield return metadata;
}
}
}
public IEnumerable<AnalyzerReference> GetAddedAnalyzerReferences()
{
var oldAnalyzerReferences = new HashSet<AnalyzerReference>(_oldProject.AnalyzerReferences);
foreach (var analyzerReference in _newProject.AnalyzerReferences)
{
if (!oldAnalyzerReferences.Contains(analyzerReference))
{
yield return analyzerReference;
}
}
}
public IEnumerable<AnalyzerReference> GetRemovedAnalyzerReferences()
{
var newAnalyzerReferences = new HashSet<AnalyzerReference>(_newProject.AnalyzerReferences);
foreach (var analyzerReference in _oldProject.AnalyzerReferences)
{
if (!newAnalyzerReferences.Contains(analyzerReference))
{
yield return analyzerReference;
}
}
}
public IEnumerable<DocumentId> GetAddedDocuments()
{
foreach (var id in _newProject.DocumentIds)
{
if (!_oldProject.ContainsDocument(id))
{
yield return id;
}
}
}
public IEnumerable<DocumentId> GetAddedAdditionalDocuments()
{
foreach (var id in _newProject.AdditionalDocumentIds)
{
if (!_oldProject.ContainsAdditionalDocument(id))
{
yield return id;
}
}
}
public IEnumerable<DocumentId> GetAddedAnalyzerConfigDocuments()
{
foreach (var doc in _newProject.AnalyzerConfigDocuments)
{
if (!_oldProject.ContainsAnalyzerConfigDocument(doc.Id))
{
yield return doc.Id;
}
}
}
/// <summary>
/// Get Documents with any changes, including textual and non-textual changes
/// </summary>
/// <returns></returns>
public IEnumerable<DocumentId> GetChangedDocuments()
{
return GetChangedDocuments(false);
}
/// <summary>
/// Get Changed Documents:
/// When onlyGetDocumentsWithTextChanges is true, only get documents with text changes;
/// otherwise get documents with any changes i.e. DocumentState changes:
/// <see cref="DocumentState.ParseOptions"/>, <see cref="DocumentState.SourceCodeKind"/>, <see cref="TextDocumentState.FilePath"/>
/// </summary>
/// <param name="onlyGetDocumentsWithTextChanges"></param>
/// <returns></returns>
public IEnumerable<DocumentId> GetChangedDocuments(bool onlyGetDocumentsWithTextChanges)
{
foreach (var id in _newProject.DocumentIds)
{
var newState = _newProject.GetDocumentState(id);
var oldState = _oldProject.GetDocumentState(id);
if (oldState != null)
{
if (onlyGetDocumentsWithTextChanges)
{
if (newState.HasTextChanged(oldState))
yield return id;
}
else
{
if (newState != oldState)
yield return id;
}
}
}
}
public IEnumerable<DocumentId> GetChangedAdditionalDocuments()
{
// if the document states are different then there is a change.
foreach (var id in _newProject.AdditionalDocumentIds)
{
var newState = _newProject.GetAdditionalDocumentState(id);
var oldState = _oldProject.GetAdditionalDocumentState(id);
if (oldState != null && newState != oldState)
{
yield return id;
}
}
}
public IEnumerable<DocumentId> GetChangedAnalyzerConfigDocuments()
{
// if the document states are different then there is a change.
foreach (var doc in _newProject.AnalyzerConfigDocuments)
{
var newState = _newProject.GetAnalyzerConfigDocumentState(doc.Id);
var oldState = _oldProject.GetAnalyzerConfigDocumentState(doc.Id);
if (oldState != null && newState != oldState)
{
yield return doc.Id;
}
}
}
public IEnumerable<DocumentId> GetRemovedDocuments()
{
foreach (var id in _oldProject.DocumentIds)
{
if (!_newProject.ContainsDocument(id))
{
yield return id;
}
}
}
public IEnumerable<DocumentId> GetRemovedAdditionalDocuments()
{
foreach (var id in _oldProject.AdditionalDocumentIds)
{
if (!_newProject.ContainsAdditionalDocument(id))
{
yield return id;
}
}
}
public IEnumerable<DocumentId> GetRemovedAnalyzerConfigDocuments()
{
foreach (var doc in _oldProject.AnalyzerConfigDocuments)
{
if (!_newProject.ContainsAnalyzerConfigDocument(doc.Id))
{
yield return doc.Id;
}
}
}
}
}