private IEnumerable <Diagnostic> ValidateDefaultValue(ParameterDefaultValueSyntax defaultValueSyntax, TypeSymbol assignedType)
{
// figure out type of the default value
var defaultValueType = typeManager.GetTypeInfo(defaultValueSyntax.DefaultValue);
// this type is not a property in a symbol so the semantic error visitor won't collect the errors automatically
if (defaultValueType is ErrorTypeSymbol)
{
return(defaultValueType.GetDiagnostics());
}
if (TypeValidator.AreTypesAssignable(defaultValueType, assignedType) == false)
{
return(DiagnosticBuilder.ForPosition(defaultValueSyntax.DefaultValue).ParameterTypeMismatch(assignedType.Name, defaultValueType.Name).AsEnumerable());
}
return(Enumerable.Empty <Diagnostic>());
}
private IEnumerable <ErrorDiagnostic> ValidateDefaultValue(ParameterDefaultValueSyntax defaultValueSyntax)
{
// figure out type of the default value
TypeSymbol?defaultValueType = this.Context.TypeManager.GetTypeInfo(defaultValueSyntax.DefaultValue, new TypeManagerContext());
// this type is not a property in a symbol so the semantic error visitor won't collect the errors automatically
if (defaultValueType is ErrorTypeSymbol)
{
return(defaultValueType.GetDiagnostics());
}
if (TypeValidator.AreTypesAssignable(defaultValueType, this.Type) == false)
{
return(this.CreateError(defaultValueSyntax.DefaultValue, b => b.ParameterTypeMismatch(this.Type.Name, defaultValueType.Name)).AsEnumerable());
}
return(Enumerable.Empty <ErrorDiagnostic>());
}
public override void VisitParameterDefaultValueSyntax(ParameterDefaultValueSyntax syntax)
{
AddCodeFixIfSingleInterpolatedString(syntax.DefaultValue);
base.VisitParameterDefaultValueSyntax(syntax);
}
