Macro bench_utils::generate_nested_struct

generate_nested_struct!() { /* proc-macro */ }

Creates a struct with deeply-nested fields. For example:

use bench_utils::generate_nested_struct;
generate_nested_struct!(foo: NestedStruct<[i32; 3]> = 1);

generates 3 structs for each “level” of the nesting, with 3 fields each:

struct struct_1 {
  field_1: i32,
  // ...
}
struct struct_2 {
  field_1: struct_1,
  // ...
}
struct struct_3 {
  field_1: struct_2,
  // ...
}

the macro then instantiates each level of the tree, resulting in a final struct with nⁿ i32 fields.