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fix(error message): fixes issue in error message TS1355 (#62465)

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Janhvi Chitnis 2025-09-19 10:47:27 -05:00 committed by GitHub
parent e9bcbe6ef7
commit 233f392d67
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4 changed files with 10 additions and 10 deletions
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2
src/compiler/checker.ts
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@ -38003,7 +38003,7 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
const exprType = checkExpression(expression, checkMode);
if (isConstTypeReference(type)) {
if (!isValidConstAssertionArgument(expression)) {
error(expression, Diagnostics.A_const_assertions_can_only_be_applied_to_references_to_enum_members_or_string_number_boolean_array_or_object_literals);
error(expression, Diagnostics.A_const_assertion_can_only_be_applied_to_references_to_enum_members_or_string_number_boolean_array_or_object_literals);
}
return getRegularTypeOfLiteralType(exprType);
}

2
src/compiler/diagnosticMessages.json
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@ -1155,7 +1155,7 @@
"category": "Error",
"code": 1354
},
"A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.": {
"A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.": {
"category": "Error",
"code": 1355
},

12
tests/baselines/reference/constAssertions.errors.txt
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@ -1,7 +1,7 @@
constAssertions.ts(44,32): error TS2540: Cannot assign to 'x' because it is a read-only property.
constAssertions.ts(61,10): error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
constAssertions.ts(62,10): error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
constAssertions.ts(63,10): error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
constAssertions.ts(61,10): error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.
constAssertions.ts(62,10): error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.
constAssertions.ts(63,10): error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.
constAssertions.ts(118,3): error TS2322: Type '3' is not assignable to type '2'.
@ -70,13 +70,13 @@ constAssertions.ts(118,3): error TS2322: Type '3' is not assignable to type '2'.
let e1 = v1 as const; // Error
~~
!!! error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
!!! error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.
let e2 = (true ? 1 : 0) as const; // Error
~~~~~~~~~~~~~~
!!! error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
!!! error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.
let e3 = id(1) as const; // Error
~~~~~
!!! error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
!!! error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.
let t1 = 'foo' as const;
let t2 = 'bar' as const;

4
tests/baselines/reference/constantEnumAssert.errors.txt
View File

@ -1,4 +1,4 @@
constantEnumAssert.ts(49,20): error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
constantEnumAssert.ts(49,20): error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.
==== constantEnumAssert.ts (1 errors) ====
@ -52,5 +52,5 @@ constantEnumAssert.ts(49,20): error TS1355: A 'const' assertions can only be app
const foo12 = { a: E5.a as const }
~~~~
!!! error TS1355: A 'const' assertions can only be applied to references to enum members, or string, number, boolean, array, or object literals.
!!! error TS1355: A 'const' assertion can only be applied to references to enum members, or string, number, boolean, array, or object literals.