prelude
import init.lean.name

/-
This is a temporary file to document all macros we have in Lean3.
Macros will not be part of Lean4, but we need to keep them until
we can bootstrap Lean4.
-/
namespace lean

structure equations_header :=
(num_fns          : nat)
(fn_names         : list name)
(fn_actual_names  : list name)
(is_private       : bool)
(is_lemma         : bool)
(is_meta          : bool)
(is_noncomputable : bool)
(aux_lemmas       : bool)
(prev_errors      : bool)
(gen_code         : bool)

/-
Cases missing:
1- quote       -- It will be a literal
2- projection  -- It will be a primitive
-/

inductive macro_definition
| nat_lit         : nat → macro_definition
| string_lit      : string → macro_definition
| annotation      : name → macro_definition
/- The following macros will be Syntax object in Lean4 -/
| struct_instance : name → bool → list name → macro_definition
| field_notation  : name → nat → macro_definition
| choice          : macro_definition
| as_pattern      : macro_definition
| equations       : equations_header → macro_definition
| equation        : bool → macro_definition
| no_equation     : bool → macro_definition

end lean