Use schema functor to generate custom schemas

[kettanaito]

Reach Schema should come with a sensible default behavior. However, ceratin use cases may want to modify how a schema is applied. Examples of such modifications may be:

• Custom resolver function arguments
• Custom actual data traversal method

Specification

import { createSchemaFunctor } from 'reach-schema'

const applyCustomSchema = createSchemaFunctor({
  traverse: (tree, node) => {},
  resolver: (value) => {}
})

applyCustomSchema({
  data: ({ value }) => value !== 2
}, {
  data: 'value'
})

Call signatures to be designed

[kettanaito]

Main motivation for this feature is to be able to create variable schemas that inherit the same behavior. The principle of the library remains the same, while certain aspects like traversal algorithm or a resolver signature vary.