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tests/cases/conformance/es6/restParameters/readonlyRestParameters.ts(8,8): error TS2556: A spread argument must either have a tuple type or be passed to a rest parameter.
tests/cases/conformance/es6/restParameters/readonlyRestParameters.ts(20,15): error TS2554: Expected 2 arguments, but got 3.
tests/cases/conformance/es6/restParameters/readonlyRestParameters.ts(25,5): error TS2542: Index signature in type 'readonly string[]' only permits reading.
==== tests/cases/conformance/es6/restParameters/readonlyRestParameters.ts (3 errors) ====
function f0(a: string, b: string) {
f0(a, b);
f1(a, b);
f2(a, b);
}
function f1(...args: readonly string[]) {
f0(...args); // Error
~~~~~~~
!!! error TS2556: A spread argument must either have a tuple type or be passed to a rest parameter.
f1('abc', 'def');
f1('abc', ...args);
f1(...args);
}
function f2(...args: readonly [string, string]) {
f0(...args);
f1('abc', 'def');
f1('abc', ...args);
f1(...args);
f2('abc', 'def');
f2('abc', ...args); // Error
~~~~~~~
!!! error TS2554: Expected 2 arguments, but got 3.
f2(...args);
}
function f4(...args: readonly string[]) {
args[0] = 'abc'; // Error
~~~~~~~
!!! error TS2542: Index signature in type 'readonly string[]' only permits reading.
}
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