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tests/cases/compiler/genericSpecializations2.ts(8,9): error TS2368: Type parameter name cannot be 'string'
tests/cases/compiler/genericSpecializations2.ts(12,9): error TS2368: Type parameter name cannot be 'string'
==== tests/cases/compiler/genericSpecializations2.ts (2 errors) ====
class IFoo<T> {
foo<T>(x: T): T { // no error on implementors because IFoo's T is different from foo's T
return null;
}
}
class IntFooBad implements IFoo<number> {
foo<string>(x: string): string { return null; }
~~~~~~
!!! error TS2368: Type parameter name cannot be 'string'
}
class StringFoo2 implements IFoo<string> {
foo<string>(x: string): string { return null; }
~~~~~~
!!! error TS2368: Type parameter name cannot be 'string'
}
class StringFoo3 implements IFoo<string> {
foo<T>(x: T): T { return null; }
}
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