tests/cases/compiler/typeParametersInStaticMethods.ts(2,21): error TS2302: Static members cannot reference class type parameters. tests/cases/compiler/typeParametersInStaticMethods.ts(2,37): error TS2302: Static members cannot reference class type parameters. ==== tests/cases/compiler/typeParametersInStaticMethods.ts (2 errors) ==== class foo { static M(x: (x: T) => { x: { y: T } }) { ~ !!! error TS2302: Static members cannot reference class type parameters. ~ !!! error TS2302: Static members cannot reference class type parameters. } }