Function parseMemberExpressionRest

test/fixtures/snapshot/typescript.js:35516–35557

(pos, expression, allowOptionalChain)

            return finishNode(indexedAccess, pos);
        }
        function parseMemberExpressionRest(pos, expression, allowOptionalChain) {
            while (true) {
                var questionDotToken = void 0;
                var isPropertyAccess = false;
                if (allowOptionalChain && isStartOfOptionalPropertyOrElementAccessChain()) {
                    questionDotToken = parseExpectedToken(28 /* SyntaxKind.QuestionDotToken */);
                    isPropertyAccess = ts.tokenIsIdentifierOrKeyword(token());
                }
                else {
                    isPropertyAccess = parseOptional(24 /* SyntaxKind.DotToken */);
                }
                if (isPropertyAccess) {
                    expression = parsePropertyAccessExpressionRest(pos, expression, questionDotToken);
                    continue;
                }
                // when in the [Decorator] context, we do not parse ElementAccess as it could be part of a ComputedPropertyName
                if ((questionDotToken || !inDecoratorContext()) && parseOptional(22 /* SyntaxKind.OpenBracketToken */)) {
                    expression = parseElementAccessExpressionRest(pos, expression, questionDotToken);
                    continue;
                }
                if (isTemplateStartOfTaggedTemplate()) {
                    // Absorb type arguments into TemplateExpression when preceding expression is ExpressionWithTypeArguments
                    expression = !questionDotToken && expression.kind === 228 /* SyntaxKind.ExpressionWithTypeArguments */ ?
                        parseTaggedTemplateRest(pos, expression.expression, questionDotToken, expression.typeArguments) :
                        parseTaggedTemplateRest(pos, expression, questionDotToken, /*typeArguments*/ undefined);
                    continue;
                }
                if (!questionDotToken) {
                    if (token() === 53 /* SyntaxKind.ExclamationToken */ && !scanner.hasPrecedingLineBreak()) {
                        nextToken();
                        expression = finishNode(factory.createNonNullExpression(expression), pos);
                        continue;
                    }
                    var typeArguments = tryParse(parseTypeArgumentsInExpression);
                    if (typeArguments) {
                        expression = finishNode(factory.createExpressionWithTypeArguments(expression, typeArguments), pos);
                        continue;
                    }
                }
                return expression;
            }
        }
        function isTemplateStartOfTaggedTemplate() {
            return token() === 14 /* SyntaxKind.NoSubstitutionTemplateLiteral */ || token() === 15 /* SyntaxKind.TemplateHead */;
        }