' Licensed to the .NET Foundation under one or more agreements.
' The .NET Foundation licenses this file to you under the MIT license.
' See the LICENSE file in the project root for more information.

Imports System.Collections.Immutable
Imports Microsoft.CodeAnalysis.VisualBasic.Symbols
Imports Microsoft.CodeAnalysis.VisualBasic.Syntax
Imports TypeKind = Microsoft.CodeAnalysis.TypeKind

Namespace Microsoft.CodeAnalysis.VisualBasic

    ' Various helpers to report diagnostics are declared in this part.

    Partial Friend Class Binder

        ''' <summary>
        ''' Report a diagnostic, and also produce an error expression with error type.
        ''' </summary>
        Public Shared Function ReportDiagnosticAndProduceBadExpression(diagBag As BindingDiagnosticBag,
                                                                       syntax As VisualBasicSyntaxNode,
                                                                       id As ERRID) As BoundExpression
            Return ReportDiagnosticAndProduceBadExpression(diagBag, syntax, ErrorFactory.ErrorInfo(id))
        End Function

        ''' <summary>
        ''' Report a diagnostic, and also produce an error expression with error type.
        ''' </summary>
        Public Shared Function ReportDiagnosticAndProduceBadExpression(diagBag As BindingDiagnosticBag,
                                                                  syntax As VisualBasicSyntaxNode,
                                                                  id As ERRID,
                                                                  ParamArray args As Object()) As BoundExpression
            Return ReportDiagnosticAndProduceBadExpression(diagBag, syntax, ErrorFactory.ErrorInfo(id, args))
        End Function

        ''' <summary>
        ''' Report a diagnostic, and also produce an error expression with error type.
        ''' </summary>
        Public Shared Function ReportDiagnosticAndProduceBadExpression(diagBag As BindingDiagnosticBag,
                                                                  syntax As VisualBasicSyntaxNode,
                                                                  info As DiagnosticInfo,
                                                                  ParamArray nodes As BoundExpression()) As BoundExpression
            Return BadExpression(syntax,
                                 If(nodes.IsEmpty, ImmutableArray(Of BoundExpression).Empty, ImmutableArray.Create(nodes)),
                                 ReportDiagnosticAndProduceErrorTypeSymbol(diagBag, syntax, info))
        End Function

        ''' <summary>
        ''' Report a diagnostic, and also produce an error expression with error type.
        ''' </summary>
        Public Shared Function ReportDiagnosticAndProduceErrorTypeSymbol(diagBag As BindingDiagnosticBag,
                                                                  syntax As VisualBasicSyntaxNode,
                                                                  id As ERRID,
                                                                  ParamArray args As Object()) As ErrorTypeSymbol
            Return ReportDiagnosticAndProduceErrorTypeSymbol(diagBag, syntax, ErrorFactory.ErrorInfo(id, args))
        End Function

        ''' <summary>
        ''' Report a diagnostic, and also produce an error expression with error type.
        ''' </summary>
        Public Shared Function ReportDiagnosticAndProduceErrorTypeSymbol(diagBag As BindingDiagnosticBag,
                                                                  syntax As VisualBasicSyntaxNode,
                                                                  info As DiagnosticInfo) As ErrorTypeSymbol
            ReportDiagnostic(diagBag, syntax, info)
            Return ErrorTypeSymbol.UnknownResultType
        End Function

    End Class

End Namespace