transform output deduplication

[dg314]

I tried migrating all of the types of my project (app.videogen.io) to Typia, and the build was still running after over 15 minutes. Many of the individual generated files were over 1MB. The problem is that we have many deeply nested types which include other complex types, and the transformer is redoing all of the work for each type without any deduplication.

For example, in the following case, both the bundle size and transformation time could be significantly reduced by reusing the generated functions in other generated functions.

type A = { a: 1 };
typia.createIs<A>();

type B = { a: A; b: 2 };
typia.createIs<B>();

type C = { a: A; b: B; c: 3 };
typia.createIs<C>();

...

type Z = {a: A; ...; y: Y; z: 26 };
typia.createIs<Z>();

Until this is resolved, typia is unusable for us.

[samchon]

If I locate every type checking functions into a global variable, and let transformer not to re-make the duplicated type checker function about the same type, it may possible.

However, this maybe a challenging ticket for me. I had this idea very long time ago, but could not challenged for a long time. I can't sure when it be, but I have to. I think that this maybe supported at next major update, or the next ts-go based migration.