Function parseArrowFunctionExpressionBody

test/fixtures/snapshot/typescript.js:34764–34796

(isAsync)

            return withJSDoc(finishNode(node, pos), hasJSDoc);
        }
        function parseArrowFunctionExpressionBody(isAsync) {
            if (token() === 18 /* SyntaxKind.OpenBraceToken */) {
                return parseFunctionBlock(isAsync ? 2 /* SignatureFlags.Await */ : 0 /* SignatureFlags.None */);
            }
            if (token() !== 26 /* SyntaxKind.SemicolonToken */ &&
                token() !== 98 /* SyntaxKind.FunctionKeyword */ &&
                token() !== 84 /* SyntaxKind.ClassKeyword */ &&
                isStartOfStatement() &&
                !isStartOfExpressionStatement()) {
                // Check if we got a plain statement (i.e. no expression-statements, no function/class expressions/declarations)
                //
                // Here we try to recover from a potential error situation in the case where the
                // user meant to supply a block. For example, if the user wrote:
                //
                //  a =>
                //      let v = 0;
                //  }
                //
                // they may be missing an open brace.  Check to see if that's the case so we can
                // try to recover better.  If we don't do this, then the next close curly we see may end
                // up preemptively closing the containing construct.
                //
                // Note: even when 'IgnoreMissingOpenBrace' is passed, parseBody will still error.
                return parseFunctionBlock(16 /* SignatureFlags.IgnoreMissingOpenBrace */ | (isAsync ? 2 /* SignatureFlags.Await */ : 0 /* SignatureFlags.None */));
            }
            var savedTopLevel = topLevel;
            topLevel = false;
            var node = isAsync
                ? doInAwaitContext(parseAssignmentExpressionOrHigher)
                : doOutsideOfAwaitContext(parseAssignmentExpressionOrHigher);
            topLevel = savedTopLevel;
            return node;
        }
        function parseConditionalExpressionRest(leftOperand, pos) {
            // Note: we are passed in an expression which was produced from parseBinaryExpressionOrHigher.
            var questionToken = parseOptionalToken(57 /* SyntaxKind.QuestionToken */);