can i export scale file from ts so can import it in rust?

[dzmitry-lahoda]

I have TS code using subshape. It defines SCALE shema. How I can export it to scale file?

I want to use scale parser from subxt to get rust code generated for that.

[dzmitry-lahoda]

Answer for other package is NO unstoppablejs/unstoppablejs#26

[tjjfvi]

There isn't anything built-in to do this, but shapes come with metadata that you can use for this; e.g.:

const visitor = new $.ShapeVisitor<string>()

visitor.add($.int, (_, signed, size) => signed ? `i${size}` : `u${size}`)
visitor.add($.array, (_, $el) => `Vec<${visitor.visit($el)}>`)
visitor.add($.str, () => "String")
visitor.add(
  $.tuple,
  (_, ...$els) =>
    $els.length === 1
      ? `(${visitor.visit($els[0]!)},)`
      : `(${$els.map((x) => visitor.visit(x)).join(", ")})`,
)

visitor.visit($.tuple($.array($.u8), $.str)) // "(Vec<u8>, String)"