38 lines
1.9 KiB
TypeScript
38 lines
1.9 KiB
TypeScript
/* @internal */
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namespace ts.codefix {
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const fixId = "addNameToNamelessParameter";
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const errorCodes = [Diagnostics.Parameter_has_a_name_but_no_type_Did_you_mean_0_Colon_1.code];
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registerCodeFix({
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errorCodes,
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getCodeActions: (context) => {
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const changes = textChanges.ChangeTracker.with(context, t => makeChange(t, context.sourceFile, context.span.start));
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return [createCodeFixAction(fixId, changes, Diagnostics.Add_parameter_name, fixId, Diagnostics.Add_names_to_all_parameters_without_names)];
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},
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fixIds: [fixId],
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getAllCodeActions: context => codeFixAll(context, errorCodes, (changes, diag) => makeChange(changes, diag.file, diag.start)),
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});
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function makeChange(changeTracker: textChanges.ChangeTracker, sourceFile: SourceFile, pos: number) {
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const token = getTokenAtPosition(sourceFile, pos);
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const param = token.parent;
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if (!isParameter(param)) {
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return Debug.fail("Tried to add a parameter name to a non-parameter: " + Debug.formatSyntaxKind(token.kind));
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}
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const i = param.parent.parameters.indexOf(param);
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Debug.assert(!param.type, "Tried to add a parameter name to a parameter that already had one.");
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Debug.assert(i > -1, "Parameter not found in parent parameter list.");
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const typeNode = factory.createTypeReferenceNode(param.name as Identifier, /*typeArguments*/ undefined);
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const replacement = factory.createParameterDeclaration(
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/*decorators*/ undefined,
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param.modifiers,
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param.dotDotDotToken,
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"arg" + i,
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param.questionToken,
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param.dotDotDotToken ? factory.createArrayTypeNode(typeNode) : typeNode,
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param.initializer);
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changeTracker.replaceNode(sourceFile, param, replacement);
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}
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}
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