Consider using AST-based TypeScript code generation

[dslmeinte]

See e.g.: https://nabeelvalley.co.za/docs/javascript/typescript-ast/

This might also be useful to make pluggable code generators, e.g. generating code specifically for Freon.

Is it possible to use a ParseExpression feature like Roslyn has?

[joswarmer]

At first sight this looks harder than just using a (text) template. But maybe first sight is misleading :-).

[dslmeinte]

(See also: https://github.com/microsoft/TypeScript/wiki/Using-the-Compiler-API#creating-and-printing-a-typescript-ast)

[dslmeinte]

Two advantages of this approach is that we're already using an intermediate representation, and that potentially things like cross-file imports could become a bit easier.