microsoft/TypeScript
1
0
Fork 0
mirror of https://github.com/microsoft/TypeScript.git synced 2026-05-30 01:04:49 -05:00
Code Issues Packages Projects Releases 212 Wiki Activity

Ban old-style type assertions under erasableSyntaxOnly (#61244)

Browse Source
This commit is contained in:
Jake Bailey
2025-02-28 11:10:43 -08:00
committed by GitHub
parent 011f7e4ee5
commit 15392346d0
6 changed files with 362 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
src/compiler/checker.ts
View File

@@ -37312,6 +37312,11 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker {
if (file && fileExtensionIsOneOf(file.fileName, [Extension.Cts, Extension.Mts])) {
grammarErrorOnNode(node, Diagnostics.This_syntax_is_reserved_in_files_with_the_mts_or_cts_extension_Use_an_as_expression_instead);
}
if (compilerOptions.erasableSyntaxOnly) {
const start = node.type.pos - "<".length;
const end = skipTrivia(file.text, node.type.end) + ">".length;
diagnostics.add(createFileDiagnostic(file, start, end - start, Diagnostics.This_syntax_is_not_allowed_when_erasableSyntaxOnly_is_enabled));
}
}
return checkAssertionWorker(node, checkMode);
}