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typescript: Code generation fails when a type in the GraphQL schema is a reserved Typescript type alongside usage of a plugin that utilizes that type #10161

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catdalfonso opened this issue Oct 3, 2024 · 0 comments

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@catdalfonso
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Which packages are impacted by your issue?

No response

Describe the bug

We had an instance where a GraphQL schema had a type name on it called Record. The Typescript type generator generates the following for this:

export type Record = {
  __typename?: 'Record';
  wins?: Maybe<Scalars['Int']['output']>;
};

This causes issues elsewhere in the generated code, as it overrides the built-in Typescript Record type used in the generated Typescript file, which causes Typescript issues.

Specifically, Record seems to be an issue with the following configuration options:

preset: 'client',
      config: {
        documentMode: 'string',
      },

The generated types include:


export class TypedDocumentString<TResult, TVariables>
  extends String
  implements DocumentTypeDecoration<TResult, TVariables>
{
  __apiType?: DocumentTypeDecoration<TResult, TVariables>['__apiType'];

  constructor(private value: string, public __meta__?: Record<string, any>) { // <-  this is the issue
    super(value);
  }

Your Example Website or App

https://stackblitz.com/edit/github-yjyxnx?file=schema.graphql

Steps to Reproduce the Bug or Issue

  1. Run yarn generate.
  2. Observe src/generated/graphql.ts.
  3. Type errors exist on the following:
constructor(private value: string, public __meta__?: Record<string, any>) {

with the error:

Type 'Record' is not generic.(2315)

Expected behavior

As as user, I would expect the GraphQL type generator to not generate types that override Typescript built-ins, and instead rename or suffix types that collide with builtin types.

Screenshots or Videos

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Platform

  • NodeJS: v18.20.3
  • graphql version: 16.2.0
  • @graphql-codegen/* version(s): 5.0.2

Codegen Config File

import { CodegenConfig } from '@graphql-codegen/cli';

const config: CodegenConfig = {
schema: 'schema.graphql',
documents: ['src/**/*.ts'],
ignoreNoDocuments: true,
generates: {
'./src/generated/graphql/': {
preset: 'client',
config: {
documentMode: 'string',
},
},
'./schema.graphql': {
plugins: ['schema-ast'],
config: {
includeDirectives: true,
},
},
},
};
export default config;

Additional context

No response

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