1/* @internal */ 2namespace ts.codefix { 3 const fixId = "addNameToNamelessParameter"; 4 const errorCodes = [Diagnostics.Parameter_has_a_name_but_no_type_Did_you_mean_0_Colon_1.code]; 5 registerCodeFix({ 6 errorCodes, 7 getCodeActions: function getCodeActionsToAddNameToNamelessParameter(context) { 8 const changes = textChanges.ChangeTracker.with(context, t => makeChange(t, context.sourceFile, context.span.start)); 9 return [createCodeFixAction(fixId, changes, Diagnostics.Add_parameter_name, fixId, Diagnostics.Add_names_to_all_parameters_without_names)]; 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 param = token.parent; 18 if (!isParameter(param)) { 19 return Debug.fail("Tried to add a parameter name to a non-parameter: " + Debug.formatSyntaxKind(token.kind)); 20 } 21 22 const i = param.parent.parameters.indexOf(param); 23 Debug.assert(!param.type, "Tried to add a parameter name to a parameter that already had one."); 24 Debug.assert(i > -1, "Parameter not found in parent parameter list."); 25 26 const typeNode = factory.createTypeReferenceNode(param.name as Identifier, /*typeArguments*/ undefined); 27 const replacement = factory.createParameterDeclaration( 28 param.modifiers, 29 param.dotDotDotToken, 30 "arg" + i, 31 param.questionToken, 32 param.dotDotDotToken ? factory.createArrayTypeNode(typeNode) : typeNode, 33 param.initializer); 34 changeTracker.replaceNode(sourceFile, param, replacement); 35 } 36} 37