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Add support for <inheritdoc /> (#972)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| // Copyright (c) Josef Pihrt and Contributors. Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Collections.Immutable; | ||
| using System.Xml.Linq; | ||
| using Microsoft.CodeAnalysis; | ||
|
|
||
| namespace Roslynator.Documentation | ||
| { | ||
| internal static class InheritDocUtility | ||
| { | ||
| public static XElement FindInheritedDocumentation(ISymbol symbol, Func<ISymbol, XElement> getDocumentation) | ||
| { | ||
| if (symbol.IsKind(SymbolKind.Method, SymbolKind.Property, SymbolKind.Event)) | ||
| { | ||
| if (symbol is IMethodSymbol methodSymbol | ||
| && methodSymbol.MethodKind == MethodKind.Constructor) | ||
| { | ||
| return FindInheritedDocumentationFromBaseConstructor(methodSymbol, getDocumentation); | ||
| } | ||
|
|
||
| return FindInheritedDocumentationFromBaseMember(symbol, getDocumentation) | ||
| ?? FindInheritedDocumentationFromImplementedInterfaceMember(symbol, getDocumentation); | ||
| } | ||
| else if (symbol is INamedTypeSymbol namedTypeSymbol) | ||
| { | ||
| return FindInheritedDocumentationFromBaseType(namedTypeSymbol, getDocumentation) | ||
| ?? FindInheritedDocumentationFromImplementedInterface(namedTypeSymbol, getDocumentation); | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| private static XElement FindInheritedDocumentationFromBaseConstructor(IMethodSymbol symbol, Func<ISymbol, XElement> getDocumentation) | ||
| { | ||
| foreach (INamedTypeSymbol baseType in symbol.ContainingType.BaseTypes()) | ||
| { | ||
| foreach (IMethodSymbol baseConstructor in baseType.Constructors) | ||
| { | ||
| if (ParametersEqual(symbol, baseConstructor)) | ||
| { | ||
| XElement element = getDocumentation(baseConstructor); | ||
|
|
||
| return (ContainsInheritDoc(element)) | ||
| ? FindInheritedDocumentationFromBaseConstructor(baseConstructor, getDocumentation) | ||
| : element; | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return null; | ||
|
|
||
| static bool ParametersEqual(IMethodSymbol x, IMethodSymbol y) | ||
| { | ||
| ImmutableArray<IParameterSymbol> parameters1 = x.Parameters; | ||
| ImmutableArray<IParameterSymbol> parameters2 = y.Parameters; | ||
|
|
||
| if (parameters1.Length != parameters2.Length) | ||
| return false; | ||
|
|
||
| for (int i = 0; i < parameters1.Length; i++) | ||
| { | ||
| if (!SymbolEqualityComparer.Default.Equals(parameters1[i].Type, parameters2[i].Type)) | ||
| return false; | ||
| } | ||
|
|
||
| return true; | ||
| } | ||
| } | ||
|
|
||
| private static XElement FindInheritedDocumentationFromBaseMember(ISymbol symbol, Func<ISymbol, XElement> getDocumentation) | ||
| { | ||
| ISymbol s = symbol; | ||
|
|
||
| while ((s = s.OverriddenSymbol()) is not null) | ||
| { | ||
| XElement element = getDocumentation(s); | ||
|
|
||
| if (!ContainsInheritDoc(element)) | ||
| return element; | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| private static XElement FindInheritedDocumentationFromImplementedInterfaceMember(ISymbol symbol, Func<ISymbol, XElement> getDocumentation) | ||
| { | ||
| INamedTypeSymbol containingType = symbol.ContainingType; | ||
|
|
||
| if (containingType != null) | ||
| { | ||
| foreach (INamedTypeSymbol interfaceSymbol in containingType.Interfaces) | ||
| { | ||
| foreach (ISymbol memberSymbol in interfaceSymbol.GetMembers(symbol.Name)) | ||
| { | ||
| if (SymbolEqualityComparer.Default.Equals(symbol, containingType.FindImplementationForInterfaceMember(memberSymbol))) | ||
| { | ||
| XElement element = getDocumentation(memberSymbol); | ||
|
|
||
| return (ContainsInheritDoc(element)) | ||
| ? FindInheritedDocumentationFromImplementedInterfaceMember(memberSymbol, getDocumentation) | ||
| : element; | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| private static XElement FindInheritedDocumentationFromBaseType(INamedTypeSymbol namedTypeSymbol, Func<ISymbol, XElement> getDocumentation) | ||
| { | ||
| foreach (INamedTypeSymbol baseType in namedTypeSymbol.BaseTypes()) | ||
| { | ||
| XElement element = getDocumentation(baseType); | ||
|
|
||
| if (!ContainsInheritDoc(element)) | ||
| return element; | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| private static XElement FindInheritedDocumentationFromImplementedInterface(INamedTypeSymbol namedTypeSymbol, Func<ISymbol, XElement> getDocumentation) | ||
| { | ||
| foreach (INamedTypeSymbol interfaceSymbol in namedTypeSymbol.Interfaces) | ||
| { | ||
| XElement element = getDocumentation(interfaceSymbol); | ||
|
|
||
| return (ContainsInheritDoc(element)) | ||
| ? FindInheritedDocumentationFromImplementedInterface(interfaceSymbol, getDocumentation) | ||
| : element; | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
| public static bool ContainsInheritDoc(XElement element) | ||
| { | ||
| if (element is not null) | ||
| { | ||
| using (IEnumerator<XElement> en = element.Elements().GetEnumerator()) | ||
| { | ||
| if (en.MoveNext()) | ||
| { | ||
| XElement e = en.Current; | ||
|
|
||
| if (!en.MoveNext() | ||
| && string.Equals(e.Name.LocalName, "inheritdoc", StringComparison.OrdinalIgnoreCase)) | ||
| { | ||
| return true; | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return false; | ||
| } | ||
| } | ||
| } |
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