Description

When generating a client using @hey-api/openapi-ts's createClient function, an internal TypeScript assertion error occurs if the OpenAPI specification contains object schemas with property names that resemble numbers, specifically negative or positive signed numbers like "-1" or "+1".

The error message is:
Debug Failure. False expression: Negative numbers should be created in combination with createPrefixUnaryExpression

This seems to happen because the underlying code generation process attempts to treat the property name string (e.g., "-1") as a numeric literal when interacting with the TypeScript compiler API, which expects negative numbers to be constructed differently (using createPrefixUnaryExpression).

Reproducible example or configuration

Steps to Reproduce:

1. Define an OpenAPI v3 schema for a component containing properties named "-1" and "+1", similar to the example below.

2. Use @hey-api/openapi-ts's createClient function, passing this schema as input. Ensure the @hey-api/typescript plugin (and potentially @hey-api/schemas or zod plugins, although the error seems to stem from the core TS generation) is included.

   // Example configuration structure
   import { createClient } from "@hey-api/openapi-ts";
   
   await createClient({
     input: {
       /* path to spec or spec object */
       // Example: path: './spec-with-numeric-props.json'
     },
     output: {
       path: "./generated-client",
     },
     plugins: [
       "@hey-api/typescript",
       // Add other plugins used, e.g.:
       // { name: '@hey-api/schemas', type: 'json' },
       // 'zod',
     ],
   });

3. Observe the thrown error during generation.

Error Message / Stack Trace:

🔥 Unexpected error occurred. Log saved to /path/to/openapi-ts-error-[timestamp].log
🔥 Unexpected error occurred. Debug Failure. False expression: Negative numbers should be created in combination with createPrefixUnaryExpression
>>> Debug(OpenApiTsSdkGenerator): createClient FAILED: 25407 |     }
25408 |     return update(updated, original);
25409 |   }
25410 |   function createNumericLiteral(value, numericLiteralFlags = 0 /* None */) {
25411 |     const text = typeof value === "number" ? value + "" : value;
25412 |     Debug.assert(text.charCodeAt(0) !== 45 /* minus */, "Negative numbers should be created in combination with createPrefixUnaryExpression");
     Debug Failure. False expression: Negative numbers should be created in combination with createPrefixUnaryExpression
Error: Debug Failure. False expression: Negative numbers should be created in combination with createPrefixUnaryExpression
    at createNumericLiteral (/path/to/node_modules/typescript/lib/typescript.js:25412:11)
    at Df (/path/to/node_modules/@hey-api/openapi-ts/dist/index.js:16:19165)
    # ... (rest of stack trace) ...
    at processTicksAndRejections (native:7:39)

OpenAPI specification (optional)

# openapi: 3.0.x
# ...
components:
  schemas:
    reaction-rollup:
      title: Reaction Rollup
      type: object
      required:
        - url
        - total_count
        - "+1"
        - "-1"
        - laugh
        - confused
        - heart
        - hooray
        - eyes
        - rocket
      properties:
        url:
          type: string
          format: uri
        total_count:
          type: integer
        "+1": # Problematic property name
          type: integer
        "-1": # Problematic property name
          type: integer
        laugh:
          type: integer
        confused:
          type: integer
        heart:
          type: integer
        hooray:
          type: integer
        eyes:
          type: integer
        rocket:
          type: integer

System information (optional)

• @hey-api/openapi-ts version: ^0.65.0
• typescript version: 5.2.2
• Node.js version: [Please fill in]
• OS: macOS Sonoma 14.5