[英]Roslyn (Lambda) Expression Bodied Property Syntax
我編寫了一個函數來將 LocalDeclaration 轉換為全局資源。 現在我正在用一個屬性替換每個定義,但我想使用新語法將它替換為一個屬性 =>
public PropertyDeclarationSyntax ConvertToResourceProperty(string resouceClassIdentifier, string fieldName, string resourceKey, CSharpSyntaxNode field)
{
var stringType = SyntaxFactory.ParseTypeName("string");
var resourceReturnIdentifier = SyntaxFactory.IdentifierName(resouceClassIdentifier + "." + resourceKey);
var returnResourceStatement = SyntaxFactory.ReturnStatement(resourceReturnIdentifier).NormalizeWhitespace();
var getRescourceBlock = SyntaxFactory.Block(returnResourceStatement);
var getAccessor = SyntaxFactory.AccessorDeclaration(SyntaxKind.GetAccessorDeclaration, getRescourceBlock).WithAdditionalAnnotations(Formatter.Annotation, Simplifier.Annotation);
var propertyDeclaration = SyntaxFactory.PropertyDeclaration(stringType, fieldName).AddModifiers(SyntaxFactory.Token(SyntaxKind.PublicKeyword), SyntaxFactory.Token(SyntaxKind.StaticKeyword)).NormalizeWhitespace();
propertyDeclaration = propertyDeclaration.AddAccessorListAccessors(getAccessor).WithAdditionalAnnotations(Formatter.Annotation);
SyntaxTrivia[] leadingTrivia = field.GetLeadingTrivia().ToArray() ?? new[] { SyntaxFactory.Whitespace("\t") };
return propertyDeclaration.WithTrailingTrivia(SyntaxFactory.Whitespace("\r\n"))
.WithLeadingTrivia(leadingTrivia)
.WithAdditionalAnnotations(Simplifier.Annotation);
}
這段代碼創建了一個像這樣的屬性:
public static string LocalResourceName
{
get{ return Resources.LocalResourceName; }
}
我希望它使財產像這樣:
public static string LocalResourceName =>Resources.LocalResourceName;
我不太確定什么會從語法工廠創建表達式主體屬性? 誰能指出我正確的方法?
在網上搜索之后,我找到了一種方法。 為什么沒有 roslyn 的文檔?
public PropertyDeclarationSyntax ConvertToResourceProperty(string resouceClassIdentifier, string fieldName, string resourceKey, CSharpSyntaxNode field)
{
var stringType = SyntaxFactory.ParseTypeName("string");
var resourceClassName = SyntaxFactory.IdentifierName(resouceClassIdentifier);
var resourceKeyName = SyntaxFactory.IdentifierName(resourceKey);
var memberaccess = SyntaxFactory.MemberAccessExpression(SyntaxKind.SimpleMemberAccessExpression, resourceClassName, resourceKeyName);
var propertyLambda = SyntaxFactory.ArrowExpressionClause(memberaccess);
var propertyDeclaration = SyntaxFactory.PropertyDeclaration(new SyntaxList<AttributeListSyntax>(), new SyntaxTokenList(),
stringType, null, SyntaxFactory.Identifier(fieldName), null,
propertyLambda, null, SyntaxFactory.Token(SyntaxKind.SemicolonToken))
.AddModifiers(SyntaxFactory.Token(SyntaxKind.PublicKeyword),
SyntaxFactory.Token(SyntaxKind.StaticKeyword)).WithAdditionalAnnotations(Formatter.Annotation).NormalizeWhitespace();
return propertyDeclaration.WithTrailingTrivia(SyntaxFactory.ElasticCarriageReturnLineFeed)
.WithLeadingTrivia(field.GetLeadingTrivia().ToArray())
.WithAdditionalAnnotations(Simplifier.Annotation);
}
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