Function transformAsyncGeneratorFunctionBody

test/fixtures/snapshot/typescript.js:97137–97174

(node)

            return updated;
        }
        function transformAsyncGeneratorFunctionBody(node) {
            resumeLexicalEnvironment();
            var statements = [];
            var statementOffset = factory.copyPrologue(node.body.statements, statements, /*ensureUseStrict*/ false, visitor);
            appendObjectRestAssignmentsIfNeeded(statements, node);
            var savedCapturedSuperProperties = capturedSuperProperties;
            var savedHasSuperElementAccess = hasSuperElementAccess;
            capturedSuperProperties = new ts.Set();
            hasSuperElementAccess = false;
            var returnStatement = factory.createReturnStatement(emitHelpers().createAsyncGeneratorHelper(factory.createFunctionExpression(
            /*modifiers*/ undefined, factory.createToken(41 /* SyntaxKind.AsteriskToken */), node.name && factory.getGeneratedNameForNode(node.name), 
            /*typeParameters*/ undefined, 
            /*parameters*/ [], 
            /*type*/ undefined, factory.updateBlock(node.body, ts.visitLexicalEnvironment(node.body.statements, visitor, context, statementOffset))), !!(hierarchyFacts & 1 /* HierarchyFacts.HasLexicalThis */)));
            // Minor optimization, emit `_super` helper to capture `super` access in an arrow.
            // This step isn't needed if we eventually transform this to ES5.
            var emitSuperHelpers = languageVersion >= 2 /* ScriptTarget.ES2015 */ && resolver.getNodeCheckFlags(node) & (4096 /* NodeCheckFlags.AsyncMethodWithSuperBinding */ | 2048 /* NodeCheckFlags.AsyncMethodWithSuper */);
            if (emitSuperHelpers) {
                enableSubstitutionForAsyncMethodsWithSuper();
                var variableStatement = ts.createSuperAccessVariableStatement(factory, resolver, node, capturedSuperProperties);
                substitutedSuperAccessors[ts.getNodeId(variableStatement)] = true;
                ts.insertStatementsAfterStandardPrologue(statements, [variableStatement]);
            }
            statements.push(returnStatement);
            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
            var block = factory.updateBlock(node.body, statements);
            if (emitSuperHelpers && hasSuperElementAccess) {
                if (resolver.getNodeCheckFlags(node) & 4096 /* NodeCheckFlags.AsyncMethodWithSuperBinding */) {
                    ts.addEmitHelper(block, ts.advancedAsyncSuperHelper);
                }
                else if (resolver.getNodeCheckFlags(node) & 2048 /* NodeCheckFlags.AsyncMethodWithSuper */) {
                    ts.addEmitHelper(block, ts.asyncSuperHelper);
                }
            }
            capturedSuperProperties = savedCapturedSuperProperties;
            hasSuperElementAccess = savedHasSuperElementAccess;
            return block;
        }
        function transformFunctionBody(node) {
            var _a;
            resumeLexicalEnvironment();