private static ConversionOperatorDeclarationSyntax GenerateConversionDeclarationWorker(
IMethodSymbol method,
CodeGenerationDestination destination,
Workspace workspace,
CodeGenerationOptions options,
ParseOptions parseOptions)
{
var hasNoBody = !options.GenerateMethodBodies || method.IsExtern;
var reusableSyntax = GetReuseableSyntaxNodeForSymbol <ConversionOperatorDeclarationSyntax>(method, options);
if (reusableSyntax != null)
{
return(reusableSyntax);
}
var operatorToken = SyntaxFactory.Token(SyntaxFacts.GetOperatorKind(method.MetadataName));
var keyword = method.MetadataName == WellKnownMemberNames.ImplicitConversionName
? SyntaxFactory.Token(SyntaxKind.ImplicitKeyword)
: SyntaxFactory.Token(SyntaxKind.ExplicitKeyword);
var declaration = SyntaxFactory.ConversionOperatorDeclaration(
attributeLists: AttributeGenerator.GenerateAttributeLists(method.GetAttributes(), options),
modifiers: GenerateModifiers(method),
implicitOrExplicitKeyword: keyword,
operatorKeyword: SyntaxFactory.Token(SyntaxKind.OperatorKeyword),
type: method.ReturnType.GenerateTypeSyntax(),
parameterList: ParameterGenerator.GenerateParameterList(method.Parameters, isExplicit: false, options: options),
body: hasNoBody ? null : StatementGenerator.GenerateBlock(method),
semicolonToken: hasNoBody ? SyntaxFactory.Token(SyntaxKind.SemicolonToken) : new SyntaxToken());
declaration = UseExpressionBodyIfDesired(workspace, declaration, parseOptions);
return(declaration);
}
private static OperatorDeclarationSyntax GenerateOperatorDeclarationWorker(
IMethodSymbol method,
CodeGenerationDestination destination,
CodeGenerationOptions options)
{
var hasNoBody = !options.GenerateMethodBodies || method.IsExtern;
var operatorSyntaxKind = SyntaxFacts.GetOperatorKind(method.MetadataName);
if (operatorSyntaxKind == SyntaxKind.None)
{
throw new ArgumentException(string.Format(WorkspacesResources.Cannot_generate_code_for_unsupported_operator_0, method.Name), nameof(method));
}
var operatorToken = SyntaxFactory.Token(operatorSyntaxKind);
return(SyntaxFactory.OperatorDeclaration(
attributeLists: AttributeGenerator.GenerateAttributeLists(method.GetAttributes(), options),
modifiers: GenerateModifiers(method),
returnType: method.ReturnType.GenerateTypeSyntax(),
operatorKeyword: SyntaxFactory.Token(SyntaxKind.OperatorKeyword),
operatorToken: operatorToken,
parameterList: ParameterGenerator.GenerateParameterList(method.Parameters, isExplicit: false, options: options),
body: hasNoBody ? null : StatementGenerator.GenerateBlock(method),
semicolonToken: hasNoBody ? SyntaxFactory.Token(SyntaxKind.SemicolonToken) : new SyntaxToken()));
}
private static BlockSyntax GenerateBlock(
IMethodSymbol constructor)
{
var statements = CodeGenerationDestructorInfo.GetStatements(constructor) == null
? default
: StatementGenerator.GenerateStatements(CodeGenerationDestructorInfo.GetStatements(constructor));
return(SyntaxFactory.Block(statements));
}
private static TDeclarationNode AddStatementsToMemberDeclaration <TDeclarationNode>(TDeclarationNode destinationMember, IEnumerable <SyntaxNode> statements, MemberDeclarationSyntax memberDeclaration) where TDeclarationNode : SyntaxNode
{
var body = memberDeclaration.GetBody();
if (body == null)
{
return(destinationMember);
}
var statementNodes = body.Statements.ToList();
statementNodes.AddRange(StatementGenerator.GenerateStatements(statements));
var finalBody = body.WithStatements(SyntaxFactory.List <StatementSyntax>(statementNodes));
var finalMember = memberDeclaration.WithBody(finalBody);
return(Cast <TDeclarationNode>(finalMember));
}
internal static BlockSyntax GenerateBlock(IMethodSymbol method)
{
return(SyntaxFactory.Block(
StatementGenerator.GenerateStatements(CodeGenerationMethodInfo.GetStatements(method))));
}
