tests/cases/conformance/es6/classExpressions/classExpressionES62.ts(2,15): error TS9003: 'class' expressions are not currently supported. ==== tests/cases/conformance/es6/classExpressions/classExpressionES62.ts (1 errors) ==== class D { } var v = class C extends D {}; ~ !!! error TS9003: 'class' expressions are not currently supported.