Function transformForAwaitOfStatement

test/fixtures/snapshot/typescript.js:96953–96997

(node, outermostLabeledStatement, ancestorFacts)

                : factory.createAwaitExpression(expression);
        }
        function transformForAwaitOfStatement(node, outermostLabeledStatement, ancestorFacts) {
            var expression = ts.visitNode(node.expression, visitor, ts.isExpression);
            var iterator = ts.isIdentifier(expression) ? factory.getGeneratedNameForNode(expression) : factory.createTempVariable(/*recordTempVariable*/ undefined);
            var result = ts.isIdentifier(expression) ? factory.getGeneratedNameForNode(iterator) : factory.createTempVariable(/*recordTempVariable*/ undefined);
            var errorRecord = factory.createUniqueName("e");
            var catchVariable = factory.getGeneratedNameForNode(errorRecord);
            var returnMethod = factory.createTempVariable(/*recordTempVariable*/ undefined);
            var callValues = ts.setTextRange(emitHelpers().createAsyncValuesHelper(expression), node.expression);
            var callNext = factory.createCallExpression(factory.createPropertyAccessExpression(iterator, "next"), /*typeArguments*/ undefined, []);
            var getDone = factory.createPropertyAccessExpression(result, "done");
            var getValue = factory.createPropertyAccessExpression(result, "value");
            var callReturn = factory.createFunctionCallCall(returnMethod, iterator, []);
            hoistVariableDeclaration(errorRecord);
            hoistVariableDeclaration(returnMethod);
            // if we are enclosed in an outer loop ensure we reset 'errorRecord' per each iteration
            var initializer = ancestorFacts & 2 /* HierarchyFacts.IterationContainer */ ?
                factory.inlineExpressions([factory.createAssignment(errorRecord, factory.createVoidZero()), callValues]) :
                callValues;
            var forStatement = ts.setEmitFlags(ts.setTextRange(factory.createForStatement(
            /*initializer*/ ts.setEmitFlags(ts.setTextRange(factory.createVariableDeclarationList([
                ts.setTextRange(factory.createVariableDeclaration(iterator, /*exclamationToken*/ undefined, /*type*/ undefined, initializer), node.expression),
                factory.createVariableDeclaration(result)
            ]), node.expression), 2097152 /* EmitFlags.NoHoisting */), 
            /*condition*/ factory.createComma(factory.createAssignment(result, createDownlevelAwait(callNext)), factory.createLogicalNot(getDone)), 
            /*incrementor*/ undefined, 
            /*statement*/ convertForOfStatementHead(node, getValue)), 
            /*location*/ node), 256 /* EmitFlags.NoTokenTrailingSourceMaps */);
            ts.setOriginalNode(forStatement, node);
            return factory.createTryStatement(factory.createBlock([
                factory.restoreEnclosingLabel(forStatement, outermostLabeledStatement)
            ]), factory.createCatchClause(factory.createVariableDeclaration(catchVariable), ts.setEmitFlags(factory.createBlock([
                factory.createExpressionStatement(factory.createAssignment(errorRecord, factory.createObjectLiteralExpression([
                    factory.createPropertyAssignment("error", catchVariable)
                ])))
            ]), 1 /* EmitFlags.SingleLine */)), factory.createBlock([
                factory.createTryStatement(
                /*tryBlock*/ factory.createBlock([
                    ts.setEmitFlags(factory.createIfStatement(factory.createLogicalAnd(factory.createLogicalAnd(result, factory.createLogicalNot(getDone)), factory.createAssignment(returnMethod, factory.createPropertyAccessExpression(iterator, "return"))), factory.createExpressionStatement(createDownlevelAwait(callReturn))), 1 /* EmitFlags.SingleLine */)
                ]), 
                /*catchClause*/ undefined, 
                /*finallyBlock*/ ts.setEmitFlags(factory.createBlock([
                    ts.setEmitFlags(factory.createIfStatement(errorRecord, factory.createThrowStatement(factory.createPropertyAccessExpression(errorRecord, "error"))), 1 /* EmitFlags.SingleLine */)
                ]), 1 /* EmitFlags.SingleLine */))
            ]));
        }
        function parameterVisitor(node) {
            ts.Debug.assertNode(node, ts.isParameter);
            return visitParameter(node);