export var foo = 123 ; module asdf { class Base { log ( ) { console . log ( 'hello world' ) ; } } class Child extends Base { logWorld ( ) { super . log ( ) ; } ; } } module bse { class Base { log = ( ) => { console . log ( 'hello world' ) ; } ; } class Child extends Base { logWorld ( ) { this . log ( ) ; } ; } } module quz { class Base { log = ( ) => { console . log ( 'hello world' ) ; } ; } class Child extends Base { logWorld ( ) { super . log ( ) ; } ; } }