46Private ReadOnly _evalStack As ArrayBuilder(Of (expression As BoundExpression, context As ExprContext)) 49Private _context As ExprContext = ExprContext.None 69evalStack As ArrayBuilder(Of ValueTuple(Of BoundExpression, ExprContext)), 88Dim evalStack = ArrayBuilder(Of ValueTuple(Of BoundExpression, ExprContext)).GetInstance() 104result = VisitExpression(expr, ExprContext.Value) 112Private Function VisitExpressionCore(node As BoundExpression, context As ExprContext) As BoundExpression 118Dim prevContext As ExprContext = Me._context 132Case ExprContext.Sideeffects 135Case ExprContext.AssignmentTarget 138Case ExprContext.Value, ExprContext.Address, ExprContext.Box 149Private Sub PushEvalStack(result As BoundExpression, context As ExprContext) 150Debug.Assert(result IsNot Nothing OrElse context = ExprContext.None) 170Private Function VisitExpression(node As BoundExpression, context As ExprContext) As BoundExpression 188Private Function VisitExpressionCoreWithStackGuard(node As BoundExpression, context As ExprContext) As BoundExpression 214Dim prevContext As ExprContext = Me._context 252Private Function LhsUsesStackWhenAssignedTo(node As BoundNode, context As ExprContext) As Boolean 253Debug.Assert(context = ExprContext.AssignmentTarget) 331If Me._context = ExprContext.Sideeffects Then 358Dim origContext As ExprContext = Me._context 365Dim rewrittenSideeffect As BoundExpression = Me.VisitExpression(sideeffect, ExprContext.Sideeffects) 483Return node.Update(Me.VisitExpression(node.Expression, ExprContext.Sideeffects)) 489Case ExprContext.Address 496Case ExprContext.AssignmentTarget 503Case ExprContext.Sideeffects 506Case ExprContext.Value, 507ExprContext.Box 518Dim left = DirectCast(VisitExpression(node.ByRefLocal, ExprContext.AssignmentTarget), BoundLocal) 524Dim right As BoundExpression = VisitExpression(node.LValue, ExprContext.Address) 545ExprContext.Address, 546ExprContext.AssignmentTarget)) 551Debug.Assert(Me._context <> ExprContext.AssignmentTarget, "assignment expression cannot be a target of another assignment") 559Dim rhsContext As ExprContext 560If Me._context = ExprContext.Address Then 562rhsContext = ExprContext.Address 565Debug.Assert(Me._context = ExprContext.Value OrElse 566Me._context = ExprContext.Box OrElse 567Me._context = ExprContext.Sideeffects, "assignment expression cannot be a target of another assignment") 569rhsContext = ExprContext.Value 588PushEvalStack(Nothing, ExprContext.None) 664Dim context As ExprContext 669context = ExprContext.Box 672context = ExprContext.Value 676context = ExprContext.Address 712Dim context As ExprContext = If(i = parameters.Length OrElse Not parameters(i).IsByRef, ExprContext.Value, ExprContext.Address) 746Me._context = ExprContext.Value 762receiver = VisitExpression(receiver, ExprContext.Box) 767(_context = ExprContext.AssignmentTarget OrElse 768_context = ExprContext.Address OrElse 771receiver = VisitExpression(receiver, ExprContext.Address) 773receiver = VisitExpression(receiver, ExprContext.Value) 885Me.PushEvalStack(Nothing, ExprContext.None) 966PushEvalStack(node, ExprContext.Value) 1003Me.PushEvalStack(Nothing, ExprContext.None) 1102Dim exceptionVariableOpt As BoundExpression = Me.VisitExpression(node.ExceptionSourceOpt, ExprContext.Value) 1106Dim errorLineNumberOpt As BoundExpression = Me.VisitExpression(node.ErrorLineNumberOpt, ExprContext.Value) 1110Dim exceptionFilterOpt As BoundExpression = Me.VisitExpression(node.ExceptionFilterOpt, ExprContext.Value) 1132Dim rewrittenInitializer As BoundExpression = Me.VisitExpression(initializer, ExprContext.Value) 1259Return top.context = If(Not local.IsByRef, ExprContext.Value, ExprContext.Address) AndAlso