Function transformClassBody

test/fixtures/snapshot/typescript.js:99017–99040

* Transforms a ClassExpression or ClassDeclaration into a function body. * * @param node A ClassExpression or ClassDeclaration node. * @param extendsClauseElement The expression for the class `extends` clause.

(node, extendsClauseElement)

         * @param extendsClauseElement The expression for the class `extends` clause.
         */
        function transformClassBody(node, extendsClauseElement) {
            var statements = [];
            var name = factory.getInternalName(node);
            var constructorLikeName = ts.isIdentifierANonContextualKeyword(name) ? factory.getGeneratedNameForNode(name) : name;
            startLexicalEnvironment();
            addExtendsHelperIfNeeded(statements, node, extendsClauseElement);
            addConstructor(statements, node, constructorLikeName, extendsClauseElement);
            addClassMembers(statements, node);
            // Create a synthetic text range for the return statement.
            var closingBraceLocation = ts.createTokenRange(ts.skipTrivia(currentText, node.members.end), 19 /* SyntaxKind.CloseBraceToken */);
            // The following partially-emitted expression exists purely to align our sourcemap
            // emit with the original emitter.
            var outer = factory.createPartiallyEmittedExpression(constructorLikeName);
            ts.setTextRangeEnd(outer, closingBraceLocation.end);
            ts.setEmitFlags(outer, 1536 /* EmitFlags.NoComments */);
            var statement = factory.createReturnStatement(outer);
            ts.setTextRangePos(statement, closingBraceLocation.pos);
            ts.setEmitFlags(statement, 1536 /* EmitFlags.NoComments */ | 384 /* EmitFlags.NoTokenSourceMaps */);
            statements.push(statement);
            ts.insertStatementsAfterStandardPrologue(statements, endLexicalEnvironment());
            var block = factory.createBlock(ts.setTextRange(factory.createNodeArray(statements), /*location*/ node.members), /*multiLine*/ true);
            ts.setEmitFlags(block, 1536 /* EmitFlags.NoComments */);
            return block;
        }
        /**
         * Adds a call to the `__extends` helper if needed for a class.
         *