Add ability to use record types instead of index signatures

[crummy]

My team uses Record<string, number> syntax instead of { [index: string]: number } syntax. Here is a PR to allow use of this syntax instead. Not very experienced in this codebase so I'm open to feedback and changes.

[vojtechhabarta]

Your approach would work but technically Record<string, number> is not indexed type formatted differently, it is generic type for which there is already GenericBasicType.

So more correct solution is to transform IndexedArrayType to GenericBasicType in ModelCompiler. You can create method in ModelCompiler where you can reuse transformBeanPropertyTypes method and call it after transformOptionalProperties.

Another solution is to create an Extension and do the transformation there. The extension could be merged to typescript-generator if you think it would be interesting for others as well.

[vojtechhabarta]

Feature released in v2.36.1070 (different implementation).
In Maven use <mapMap>asRecord</mapMap> parameter.