predefined-type.md

Predefined Type

To create predefined types, such as mapping number in TypeScript to Int in Swift, we need to:

1. Create a TypeScript interface or type alias. Example:

   type CodeGen_Int = number;

2. Specify this custom type in the configuration file. Example:

   "parsing": {
     "predefinedTypes": [
       "CodeGen_Int"
     ]

3. Make sure the mapping is also defined for the target language renderer. Example:

   "rendering": {
     "swift": {
       "typeNameMap": {
         "CodeGen_Int": "Int"
       }

For full example, please refer to https://github.com/microsoft/ts-codegen/blob/main/demo/basic/config.json.