// std.string (Ny) - Phase15 MVP
// Usage:
//   include "apps/std/string.nyash"
//   StdStringNy.string_length("abc"), StdStringNy.string_concat("a","b"),
//   StdStringNy.string_slice("hello",1,4), StdStringNy.string_index_of("banana","na"), StdStringNy.string_equals("x","y")
// Notes:
//   - ASCII only; slice clamps [start,end)
//   - index_of returns -1 when not found
//   - Pure functions; no side effects

static box StdStringNy {
  string_length(s) {
    if s == null { return 0 }
    return s.length()
  }

  // Keep only length for now to diagnose include hang
}