public static IMethodSymbol OverrideMethod(
this ISyntaxFactoryService codeFactory,
IMethodSymbol overriddenMethod,
SymbolModifiers modifiers,
INamedTypeSymbol newContainingType,
Document newDocument,
CancellationToken cancellationToken)
{
// Abstract: Throw not implemented
if (overriddenMethod.IsAbstract)
{
return(CodeGenerationSymbolFactory.CreateMethodSymbol(
overriddenMethod,
accessibility: overriddenMethod.ComputeResultantAccessibility(newContainingType),
modifiers: modifiers,
statements: new[] { codeFactory.CreateThrowNotImplementStatement(newDocument.Project.GetCompilationAsync(cancellationToken).WaitAndGetResult(cancellationToken)) }));
}
else
{
// Otherwise, call the base method with the same parameters
var typeParams = overriddenMethod.GetTypeArguments();
var body = codeFactory.CreateInvocationExpression(
codeFactory.CreateMemberAccessExpression(codeFactory.CreateBaseExpression(),
typeParams.IsDefaultOrEmpty
? codeFactory.CreateIdentifierName(overriddenMethod.Name)
: codeFactory.CreateGenericName(overriddenMethod.Name, typeParams)),
codeFactory.CreateArguments(overriddenMethod.GetParameters()));
return(CodeGenerationSymbolFactory.CreateMethodSymbol(
method: overriddenMethod,
accessibility: overriddenMethod.ComputeResultantAccessibility(newContainingType),
modifiers: modifiers,
statements: ((IMethodSymbol)overriddenMethod).ReturnsVoid
? new SyntaxNode[] { codeFactory.CreateExpressionStatement(body) }
: new SyntaxNode[] { codeFactory.CreateReturnStatement(body) }));
}
}