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=== tests/cases/compiler/chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts ===
class Chain<T> {
>Chain : Symbol(Chain, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 0))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 12))
constructor(public value: T) { }
>value : Symbol(Chain.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 16))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 12))
then<S extends T>(cb: (x: T) => S): Chain<S> {
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 2, 9))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 12))
>cb : Symbol(cb, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 2, 22))
>x : Symbol(x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 2, 27))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 12))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 2, 9))
>Chain : Symbol(Chain, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 0))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 2, 9))
var t: T;
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 12))
var s: S;
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 4, 11))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 2, 9))
// Ok to go down the chain, but error to climb up the chain
(new Chain(t)).then(tt => s).then(ss => t);
>(new Chain(t)).then(tt => s).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>(new Chain(t)).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>Chain : Symbol(Chain, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 0))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 6, 28))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 4, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 6, 42))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
// But error to try to climb up the chain
(new Chain(s)).then(ss => t);
>(new Chain(s)).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>Chain : Symbol(Chain, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 0))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 4, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 9, 28))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
// Staying at T or S should be fine
(new Chain(t)).then(tt => t).then(tt => t).then(tt => t);
>(new Chain(t)).then(tt => t).then(tt => t).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>(new Chain(t)).then(tt => t).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>(new Chain(t)).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>Chain : Symbol(Chain, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 0))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 12, 28))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 12, 42))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 12, 56))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 3, 11))
(new Chain(s)).then(ss => s).then(ss => s).then(ss => s);
>(new Chain(s)).then(ss => s).then(ss => s).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>(new Chain(s)).then(ss => s).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>(new Chain(s)).then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>Chain : Symbol(Chain, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 0, 0))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 4, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 13, 28))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 4, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 13, 42))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 4, 11))
>then : Symbol(Chain.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 1, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 13, 56))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 4, 11))
return null;
}
}
// Similar to above, but T is now constrained. Verify that the constraint is maintained across invocations
interface I {
>I : Symbol(I, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 17, 1))
x: number;
>x : Symbol(I.x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 20, 13))
}
class Chain2<T extends I> {
>Chain2 : Symbol(Chain2, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 22, 1))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 23, 13))
>I : Symbol(I, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 17, 1))
constructor(public value: T) { }
>value : Symbol(Chain2.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 16))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 23, 13))
then<S extends T>(cb: (x: T) => S): Chain2<S> {
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 25, 9))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 23, 13))
>cb : Symbol(cb, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 25, 22))
>x : Symbol(x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 25, 27))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 23, 13))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 25, 9))
>Chain2 : Symbol(Chain2, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 22, 1))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 25, 9))
var i: I;
>i : Symbol(i, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 26, 11))
>I : Symbol(I, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 17, 1))
var t: T;
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 27, 11))
>T : Symbol(T, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 23, 13))
var s: S;
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 28, 11))
>S : Symbol(S, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 25, 9))
// Ok to go down the chain, check the constraint at the end.
// Should get an error that we are assigning a string to a number
(new Chain2(i)).then(ii => t).then(tt => s).value.x = "";
>(new Chain2(i)).then(ii => t).then(tt => s).value.x : Symbol(I.x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 20, 13))
>(new Chain2(i)).then(ii => t).then(tt => s).value : Symbol(Chain2.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 16))
>(new Chain2(i)).then(ii => t).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>(new Chain2(i)).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>Chain2 : Symbol(Chain2, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 22, 1))
>i : Symbol(i, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 26, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>ii : Symbol(ii, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 31, 29))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 27, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 31, 43))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 28, 11))
>value : Symbol(Chain2.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 16))
>x : Symbol(I.x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 20, 13))
// Staying at T or S should keep the constraint.
// Get an error when we assign a string to a number in both cases
(new Chain2(i)).then(ii => t).then(tt => t).then(tt => t).then(tt => t).value.x = "";
>(new Chain2(i)).then(ii => t).then(tt => t).then(tt => t).then(tt => t).value.x : Symbol(I.x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 20, 13))
>(new Chain2(i)).then(ii => t).then(tt => t).then(tt => t).then(tt => t).value : Symbol(Chain2.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 16))
>(new Chain2(i)).then(ii => t).then(tt => t).then(tt => t).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>(new Chain2(i)).then(ii => t).then(tt => t).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>(new Chain2(i)).then(ii => t).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>(new Chain2(i)).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>Chain2 : Symbol(Chain2, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 22, 1))
>i : Symbol(i, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 26, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>ii : Symbol(ii, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 35, 29))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 27, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 35, 43))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 27, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 35, 57))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 27, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>tt : Symbol(tt, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 35, 71))
>t : Symbol(t, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 27, 11))
>value : Symbol(Chain2.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 16))
>x : Symbol(I.x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 20, 13))
(new Chain2(i)).then(ii => s).then(ss => s).then(ss => s).then(ss => s).value.x = "";
>(new Chain2(i)).then(ii => s).then(ss => s).then(ss => s).then(ss => s).value.x : Symbol(I.x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 20, 13))
>(new Chain2(i)).then(ii => s).then(ss => s).then(ss => s).then(ss => s).value : Symbol(Chain2.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 16))
>(new Chain2(i)).then(ii => s).then(ss => s).then(ss => s).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>(new Chain2(i)).then(ii => s).then(ss => s).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>(new Chain2(i)).then(ii => s).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>(new Chain2(i)).then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>Chain2 : Symbol(Chain2, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 22, 1))
>i : Symbol(i, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 26, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>ii : Symbol(ii, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 36, 29))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 28, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 36, 43))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 28, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 36, 57))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 28, 11))
>then : Symbol(Chain2.then, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 36))
>ss : Symbol(ss, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 36, 71))
>s : Symbol(s, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 28, 11))
>value : Symbol(Chain2.value, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 24, 16))
>x : Symbol(I.x, Decl(chainedCallsWithTypeParameterConstrainedToOtherTypeParameter2.ts, 20, 13))
return null;
}
}
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