1/* @internal */ 2namespace ts.codefix { 3 const fixId = "addConvertToUnknownForNonOverlappingTypes"; 4 const errorCodes = [Diagnostics.Conversion_of_type_0_to_type_1_may_be_a_mistake_because_neither_type_sufficiently_overlaps_with_the_other_If_this_was_intentional_convert_the_expression_to_unknown_first.code]; 5 registerCodeFix({ 6 errorCodes, 7 getCodeActions: (context) => { 8 const changes = textChanges.ChangeTracker.with(context, t => makeChange(t, context.sourceFile, context.span.start)); 9 return [createCodeFixAction(fixId, changes, Diagnostics.Add_unknown_conversion_for_non_overlapping_types, fixId, Diagnostics.Add_unknown_to_all_conversions_of_non_overlapping_types)]; 10 }, 11 fixIds: [fixId], 12 getAllCodeActions: context => codeFixAll(context, errorCodes, (changes, diag) => makeChange(changes, diag.file, diag.start)), 13 }); 14 15 function makeChange(changeTracker: textChanges.ChangeTracker, sourceFile: SourceFile, pos: number) { 16 const token = getTokenAtPosition(sourceFile, pos); 17 const assertion = Debug.checkDefined(findAncestor(token, (n): n is AsExpression | TypeAssertion => isAsExpression(n) || isTypeAssertionExpression(n)), "Expected to find an assertion expression"); 18 const replacement = isAsExpression(assertion) 19 ? factory.createAsExpression(assertion.expression, factory.createKeywordTypeNode(SyntaxKind.UnknownKeyword)) 20 : factory.createTypeAssertion(factory.createKeywordTypeNode(SyntaxKind.UnknownKeyword), assertion.expression); 21 changeTracker.replaceNode(sourceFile, assertion.expression, replacement); 22 } 23} 24