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tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(9,12): error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(10,15): error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(11,12): error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(12,12): error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(15,5): error TS4104: The type 'readonly string[]' is 'readonly' and cannot be assigned to the mutable type 'string[]'.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(17,5): error TS4104: The type 'readonly [string, string]' is 'readonly' and cannot be assigned to the mutable type 'string[]'.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(21,5): error TS2322: Type 'string[]' is not assignable to type '[string, string]'.
Target requires 2 element(s) but source may have fewer.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(22,5): error TS4104: The type 'readonly string[]' is 'readonly' and cannot be assigned to the mutable type '[string, string]'.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(23,5): error TS4104: The type 'readonly [string, string]' is 'readonly' and cannot be assigned to the mutable type '[string, string]'.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(24,5): error TS2322: Type 'string[]' is not assignable to type 'readonly [string, string]'.
Target requires 2 element(s) but source may have fewer.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(25,5): error TS2322: Type 'readonly string[]' is not assignable to type 'readonly [string, string]'.
Target requires 2 element(s) but source may have fewer.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(30,3): error TS2540: Cannot assign to '0' because it is a read-only property.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(31,3): error TS2540: Cannot assign to '1' because it is a read-only property.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(32,1): error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(33,8): error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(34,1): error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(35,1): error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts(36,8): error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
==== tests/cases/conformance/types/tuple/readonlyArraysAndTuples.ts (18 errors) ====
type T10 = string[];
type T11 = Array<string>;
type T12 = readonly string[];
type T13 = ReadonlyArray<string>;
type T20 = [number, number];
type T21 = readonly [number, number];
type T30 = readonly string; // Error
~~~~~~~~
!!! error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
type T31<T> = readonly T; // Error
~~~~~~~~
!!! error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
type T32 = readonly readonly string[]; // Error
~~~~~~~~
!!! error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
type T33 = readonly Array<string>; // Error
~~~~~~~~
!!! error TS1354: 'readonly' type modifier is only permitted on array and tuple literal types.
function f1(ma: string[], ra: readonly string[], mt: [string, string], rt: readonly [string, string]) {
ma = ra; // Error
~~
!!! error TS4104: The type 'readonly string[]' is 'readonly' and cannot be assigned to the mutable type 'string[]'.
ma = mt;
ma = rt; // Error
~~
!!! error TS4104: The type 'readonly [string, string]' is 'readonly' and cannot be assigned to the mutable type 'string[]'.
ra = ma;
ra = mt;
ra = rt;
mt = ma; // Error
~~
!!! error TS2322: Type 'string[]' is not assignable to type '[string, string]'.
!!! error TS2322: Target requires 2 element(s) but source may have fewer.
mt = ra; // Error
~~
!!! error TS4104: The type 'readonly string[]' is 'readonly' and cannot be assigned to the mutable type '[string, string]'.
mt = rt; // Error
~~
!!! error TS4104: The type 'readonly [string, string]' is 'readonly' and cannot be assigned to the mutable type '[string, string]'.
rt = ma; // Error
~~
!!! error TS2322: Type 'string[]' is not assignable to type 'readonly [string, string]'.
!!! error TS2322: Target requires 2 element(s) but source may have fewer.
rt = ra; // Error
~~
!!! error TS2322: Type 'readonly string[]' is not assignable to type 'readonly [string, string]'.
!!! error TS2322: Target requires 2 element(s) but source may have fewer.
rt = mt;
}
declare var v: readonly[number, number, ...number[]];
v[0] = 1; // Error
~
!!! error TS2540: Cannot assign to '0' because it is a read-only property.
v[1] = 1; // Error
~
!!! error TS2540: Cannot assign to '1' because it is a read-only property.
v[2] = 1; // Error
~~~~
!!! error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
delete v[2]; // Error
~~~~
!!! error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
v[0 + 1] = 1; // Error
~~~~~~~~
!!! error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
v[0 + 2] = 1; // Error
~~~~~~~~
!!! error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
delete v[0 + 1]; // Error
~~~~~~~~
!!! error TS2542: Index signature in type 'readonly [number, number, ...number[]]' only permits reading.
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