Babel.Compiler.TypeCheckingVisitor.VisitCase C# (CSharp) Method

        public override void VisitCase(CaseStatement caseStmt)
        {
            caseStmt.Test.Accept(this);
            caseStmt.TestName = getTemporallyName();
            localVariableStack.AddLocal(caseStmt.TestName,
                                        caseStmt.Test.NodeType);
            foreach (CaseWhen when in caseStmt.WhenPartList) {
                foreach (Expression value in when.ValueList) {
                    LocalExpression test =
                        new LocalExpression(caseStmt.TestName, value.Location);
                    ModalExpression arg =
                        new ModalExpression(ArgumentMode.In, value,
                                            value.Location);
                    TypedNodeList args = new TypedNodeList(arg);
                    CallExpression call =
                        new CallExpression(test, "is_eq", args, value.Location);
                    call.Accept(this);
                    if (call.NodeType == typeManager.BoolType) {
                        when.TestCallList.Append(call);
                    }
                    else {
                        if (call.NodeType != null) {
                            report.Error(value.Location,
                                         "no match for {0}::is_eq({1}):BOOL",
                                         caseStmt.Test.NodeType.FullName,
                                         value.NodeType.FullName);
                        }
                    }
                }
                when.ThenPart.Accept(this);
            }
            if (caseStmt.ElsePart != null)
                caseStmt.ElsePart.Accept(this);
        }