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 MethodDeclarationSyntax GenerateMethodDeclarationWorker(
IMethodSymbol method, CodeGenerationDestination destination,
Workspace workspace, CodeGenerationOptions options, ParseOptions parseOptions)
{
var hasNoBody = !options.GenerateMethodBodies ||
destination == CodeGenerationDestination.InterfaceType ||
method.IsAbstract;
var explicitInterfaceSpecifier = GenerateExplicitInterfaceSpecifier(method.ExplicitInterfaceImplementations);
var returnType = method.ReturnsByRef
? method.ReturnType.GenerateRefTypeSyntax()
: method.ReturnType.GenerateTypeSyntax();
var methodDeclaration = SyntaxFactory.MethodDeclaration(
attributeLists: GenerateAttributes(method, options, explicitInterfaceSpecifier != null),
modifiers: GenerateModifiers(method, destination, options),
returnType: returnType,
explicitInterfaceSpecifier: explicitInterfaceSpecifier,
identifier: method.Name.ToIdentifierToken(),
typeParameterList: GenerateTypeParameterList(method, options),
parameterList: ParameterGenerator.GenerateParameterList(method.Parameters, explicitInterfaceSpecifier != null, options),
constraintClauses: GenerateConstraintClauses(method),
body: hasNoBody ? null : StatementGenerator.GenerateBlock(method),
expressionBody: default(ArrowExpressionClauseSyntax),
semicolonToken: hasNoBody ? SyntaxFactory.Token(SyntaxKind.SemicolonToken) : new SyntaxToken());
methodDeclaration = UseExpressionBodyIfDesired(workspace, methodDeclaration, parseOptions);
return(AddCleanupAnnotationsTo(methodDeclaration));
}
private static ConversionOperatorDeclarationSyntax GenerateConversionDeclarationWorker(
IMethodSymbol method,
CodeGenerationDestination destination,
CodeGenerationOptions options)
{
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);
return(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()));
}
private static OperatorDeclarationSyntax GenerateOperatorDeclarationWorker(
IMethodSymbol method,
CodeGenerationDestination destination,
CSharpCodeGenerationContextInfo info)
{
var hasNoBody = !info.Context.GenerateMethodBodies || method.IsExtern || method.IsAbstract;
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);
var checkedToken = SyntaxFacts.IsCheckedOperator(method.MetadataName)
? SyntaxFactory.Token(SyntaxKind.CheckedKeyword)
: default;
var operatorDecl = SyntaxFactory.OperatorDeclaration(
attributeLists: AttributeGenerator.GenerateAttributeLists(method.GetAttributes(), info),
modifiers: GenerateModifiers(method, destination, hasNoBody),
returnType: method.ReturnType.GenerateTypeSyntax(),
explicitInterfaceSpecifier: GenerateExplicitInterfaceSpecifier(method.ExplicitInterfaceImplementations),
operatorKeyword: SyntaxFactory.Token(SyntaxKind.OperatorKeyword),
checkedKeyword: checkedToken,
operatorToken: operatorToken,
parameterList: ParameterGenerator.GenerateParameterList(method.Parameters, isExplicit: false, info: info),
body: hasNoBody ? null : StatementGenerator.GenerateBlock(method),
expressionBody: null,
semicolonToken: hasNoBody ? SyntaxFactory.Token(SyntaxKind.SemicolonToken) : new SyntaxToken());
operatorDecl = UseExpressionBodyIfDesired(info, operatorDecl);
return(operatorDecl);
}
private static BlockSyntax GenerateBlock(IMethodSymbol accessor)
{
return(SyntaxFactory.Block(
StatementGenerator.GenerateStatements(
CodeGenerationMethodInfo.GetStatements(accessor)
)
));
}
internal static BlockSyntax GenerateBlock(IMethodSymbol method)
{
return(SyntaxFactory.Block(
StatementGenerator.GenerateStatements(
CodeGenerationMethodInfo.GetStatements(method)
)
));
}
private static BlockSyntax GenerateBlock(
IMethodSymbol constructor)
{
var statements = CodeGenerationDestructorInfo.GetStatements(constructor) == null
? default(SyntaxList <StatementSyntax>)
: 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));
}
private static MethodDeclarationSyntax GenerateMethodDeclarationWorker(
IMethodSymbol method, CodeGenerationDestination destination,
Workspace workspace, CodeGenerationOptions options, ParseOptions parseOptions)
{
var hasNoBody = !options.GenerateMethodBodies ||
destination == CodeGenerationDestination.InterfaceType ||
method.IsAbstract;
var explicitInterfaceSpecifier = GenerateExplicitInterfaceSpecifier(method.ExplicitInterfaceImplementations);
var methodDeclaration = SyntaxFactory.MethodDeclaration(
attributeLists: GenerateAttributes(method, options, explicitInterfaceSpecifier != null),
modifiers: GenerateModifiers(method, destination, options),
returnType: method.GenerateReturnTypeSyntax(),
explicitInterfaceSpecifier: explicitInterfaceSpecifier,
identifier: method.Name.ToIdentifierToken(),
typeParameterList: GenerateTypeParameterList(method, options),
parameterList: ParameterGenerator.GenerateParameterList(method.Parameters, explicitInterfaceSpecifier != null, options),
constraintClauses: GenerateConstraintClauses(method),
body: hasNoBody ? null : StatementGenerator.GenerateBlock(method),
expressionBody: default,
private static ConversionOperatorDeclarationSyntax GenerateConversionDeclarationWorker(
IMethodSymbol method,
CodeGenerationDestination destination,
CSharpCodeGenerationContextInfo info)
{
var hasNoBody = !info.Context.GenerateMethodBodies || method.IsExtern;
var reusableSyntax = GetReuseableSyntaxNodeForSymbol <ConversionOperatorDeclarationSyntax>(method, info);
if (reusableSyntax != null)
{
return(reusableSyntax);
}
var keyword = method.MetadataName == WellKnownMemberNames.ImplicitConversionName
? SyntaxFactory.Token(SyntaxKind.ImplicitKeyword)
: SyntaxFactory.Token(SyntaxKind.ExplicitKeyword);
var checkedToken = SyntaxFacts.IsCheckedOperator(method.MetadataName)
? SyntaxFactory.Token(SyntaxKind.CheckedKeyword)
: default;
var declaration = SyntaxFactory.ConversionOperatorDeclaration(
attributeLists: AttributeGenerator.GenerateAttributeLists(method.GetAttributes(), info),
modifiers: GenerateModifiers(destination),
implicitOrExplicitKeyword: keyword,
explicitInterfaceSpecifier: null,
operatorKeyword: SyntaxFactory.Token(SyntaxKind.OperatorKeyword),
checkedKeyword: checkedToken,
type: method.ReturnType.GenerateTypeSyntax(),
parameterList: ParameterGenerator.GenerateParameterList(method.Parameters, isExplicit: false, info: info),
body: hasNoBody ? null : StatementGenerator.GenerateBlock(method),
expressionBody: null,
semicolonToken: hasNoBody ? SyntaxFactory.Token(SyntaxKind.SemicolonToken) : new SyntaxToken());
declaration = UseExpressionBodyIfDesired(info, declaration);
return(declaration);
}
private static MethodDeclarationSyntax GenerateMethodDeclarationWorker(
IMethodSymbol method, CodeGenerationDestination destination,
Workspace workspace, CodeGenerationOptions options, ParseOptions parseOptions)
{
// Don't rely on destination to decide if method body should be generated.
// Users of this service need to express their intention explicitly, either by
// setting `CodeGenerationOptions.GenerateMethodBodies` to true, or making
// `method` abstract. This would provide more flexibility.
var hasNoBody = !options.GenerateMethodBodies || method.IsAbstract;
var explicitInterfaceSpecifier = GenerateExplicitInterfaceSpecifier(method.ExplicitInterfaceImplementations);
var methodDeclaration = SyntaxFactory.MethodDeclaration(
attributeLists: GenerateAttributes(method, options, explicitInterfaceSpecifier != null),
modifiers: GenerateModifiers(method, destination, workspace, options, localFunction: false),
returnType: method.GenerateReturnTypeSyntax(),
explicitInterfaceSpecifier: explicitInterfaceSpecifier,
identifier: method.Name.ToIdentifierToken(),
typeParameterList: GenerateTypeParameterList(method, options),
parameterList: ParameterGenerator.GenerateParameterList(method.Parameters, explicitInterfaceSpecifier != null, options),
constraintClauses: GenerateConstraintClauses(method),
body: hasNoBody ? null : StatementGenerator.GenerateBlock(method),
expressionBody: default,
