File: typeParametersAreIdenticalToThemselves.js

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//// [typeParametersAreIdenticalToThemselves.ts]
// type parameters from the same declaration are identical to themself

function foo1<T>(x: T);
function foo1<T>(x: T); // no error, different declaration for each T
function foo1<T>(x: T) { }

function foo2<T, U>(x: T);
function foo2<T, U>(x: T); // no error, different declaration for each T
function foo2<T, U>(x: T) { }

function foo3<T, U>(x: T, y: U) {
    function inner(x: T);
    function inner(x: T); // error, same T
    function inner(x: T) { }

    function inner2(x: T);
    function inner2<T>(x: T); // no error, different T
    function inner2(x: any) { }
}

class C<T> {
    foo1(x: T);
    foo1(x: T); // error, same T
    foo1(x: T) { }

    foo2<U>(a: T, x: U);
    foo2<U>(a: T, x: U); // no error, different declaration for each U
    foo2<U>(a: T, x: U) { }

    foo3<T>(x: T);
    foo3<T>(x: T); // no error, different declaration for each T
    foo3<T>(x: T) { }

    foo4<T extends Date>(x: T);
    foo4<T extends Date>(x: T); // no error, different declaration for each T
    foo4<T extends Date>(x: T) { }
}

class C2<T extends Date> {
    foo1(x: T);
    foo1(x: T); // error, same T
    foo1(x: T) { }

    foo2<U>(a: T, x: U);
    foo2<U>(a: T, x: U); // no error, different declaration for each U
    foo2<U>(a: T, x: U) { }

    foo3<T>(x: T);
    foo3<T>(x: T); // no error, different declaration for each T
    foo3<T>(x: T) { }
}

interface I<T> {
    foo1(x: T);
    foo1(x: T); // error, same T

    foo2<U>(a: T, x: U);
    foo2<U>(a: T, x: U); // no error, different declaration for each U

    foo3<T>(x: T);
    foo3<T>(x: T); // no error, different declaration for each T

    foo4<T extends Date>(x: T);
    foo4<T extends Date>(x: T); // no error, different declaration for each T
}

interface I2<T extends Date> {
    foo1(x: T);
    foo1(x: T); // error, same T

    foo2<U>(a: T, x: U);
    foo2<U>(a: T, x: U); // no error, different declaration for each U

    foo3<T>(x: T);
    foo3<T>(x: T); // no error, different declaration for each T
}

//// [typeParametersAreIdenticalToThemselves.js]
// type parameters from the same declaration are identical to themself
function foo1(x) { }
function foo2(x) { }
function foo3(x, y) {
    function inner(x) { }
    function inner2(x) { }
}
var C = /** @class */ (function () {
    function C() {
    }
    C.prototype.foo1 = function (x) { };
    C.prototype.foo2 = function (a, x) { };
    C.prototype.foo3 = function (x) { };
    C.prototype.foo4 = function (x) { };
    return C;
}());
var C2 = /** @class */ (function () {
    function C2() {
    }
    C2.prototype.foo1 = function (x) { };
    C2.prototype.foo2 = function (a, x) { };
    C2.prototype.foo3 = function (x) { };
    return C2;
}());