reduce expression_eq to equal variable

src/stages/4-ast_typed/misc.ml

@@ -528,104 +528,7 @@ let program_environment (program : program) : full_environment =
   match last_declaration with
   | Declaration_constant { binder=_ ; expr=_ ; inline=_ ; post_env } -> post_env
 
-let rec expression_eq a b : bool =
+let expression_eq a b : bool =
   match a.expression_content, b.expression_content with 
-  | E_literal a, E_literal b -> literal_eq a b
-  | E_literal _, _ -> false
-  | E_constant {cons_name=ca;arguments=lsta}, E_constant {cons_name=cb;arguments=lstb} when ca == cb ->
-    let lst = List.combine lsta lstb in
-    let aux res (a,b) = res && expression_eq a b in
-    List.fold_left aux true lst
-  | E_constant _, _ -> false 
-  | E_constructor {constructor=ca;element=ea}, E_constructor {constructor=cb;element=eb} when ca = cb ->
-    expression_eq ea eb
-  | E_constructor _, _ -> false
   | E_variable a, E_variable b -> Var.equal a b
-  | E_variable _, _ -> false
-  | E_application {lamb=a;args=la}, E_application {lamb=b;args=lb} ->
-    expression_eq a b && expression_eq la lb
-  | E_application _, _ -> false
-  | E_lambda {binder=ba;result=ra}, E_lambda {binder=bb;result=rb} ->
-    Var.equal ba bb && expression_eq ra rb
-  | E_lambda _, _ -> false
-  | E_recursive {fun_name=na;fun_type=_;lambda={binder=ba;result=ra}}, 
-    E_recursive {fun_name=nb;fun_type=_;lambda={binder=bb;result=rb}} ->
-    Var.equal na nb && Var.equal ba bb && expression_eq ra rb
-  | E_recursive _,_ -> false
-  | E_let_in {let_binder=na;rhs=ra;let_result=la;_}, E_let_in {let_binder=nb;rhs=rb;let_result=lb;_} ->
-    Var.equal na nb && expression_eq ra rb && expression_eq la lb
-  | E_let_in _,_ -> false
-  | E_record ra, E_record rb ->
-    let la = LMap.to_kv_list ra in
-    let lb = LMap.to_kv_list rb in
-    let lst = List.combine la lb in
-    let aux res ((Label ka,va),(Label kb,vb)) = 
-      res && String.equal ka kb && expression_eq va vb
-    in
-    List.fold_left aux true lst
-  | E_record _,_ -> false
-  | E_record_accessor {record=ra;path=Label la}, E_record_accessor {record=rb;path=Label lb} ->
-    expression_eq ra rb && String.equal la lb
-  | E_record_accessor _, _ -> false
-  | E_record_update {record=ra;path=Label la;update=ua}, E_record_update {record=rb;path=Label lb; update=ub} ->
-    expression_eq ra rb && String.equal la lb && expression_eq ua ub
-  | E_record_update _, _ -> false
-  | E_matching {matchee=ma;cases=ca}, E_matching {matchee=mb;cases=cb} ->
-    expression_eq ma mb && matching_eq ca cb 
-  | E_matching _, _ -> false
-
-and literal_eq la lb :bool = 
-  match (la,lb) with 
-  | Literal_bool a, Literal_bool b -> a = b
-  | Literal_bool _, _  -> false
-  | Literal_int a, Literal_int b -> a = b
-  | Literal_int _, _ -> false
-  | Literal_nat a, Literal_nat b -> a = b
-  | Literal_nat _, _ -> false
-  | Literal_timestamp a, Literal_timestamp b -> a = b
-  | Literal_timestamp _, _ -> false
-  | Literal_mutez a, Literal_mutez b -> a = b
-  | Literal_mutez _, _ -> false
-  | Literal_string a, Literal_string b -> a = b
-  | Literal_string _, _ -> false
-  | Literal_bytes a, Literal_bytes b -> a = b
-  | Literal_bytes _, _ -> false
-  | Literal_void, Literal_void -> true
-  | Literal_void, _ -> false
-  | Literal_unit, Literal_unit -> true
-  | Literal_unit, _ -> false
-  | Literal_address a, Literal_address b -> a = b
-  | Literal_address _, _ -> false
-  | Literal_signature a, Literal_signature b -> a = b
-  | Literal_signature _, _ -> false
-  | Literal_key a, Literal_key b -> a = b
-  | Literal_key _, _ -> false
-  | Literal_key_hash a, Literal_key_hash b -> a = b
-  | Literal_key_hash _, _ -> false
-  | Literal_chain_id a, Literal_chain_id b -> a = b
-  | Literal_chain_id _, _ -> false
-  | Literal_operation _, _ -> false
-
-and matching_eq ma mb : bool = 
-  match (ma,mb) with 
-  | Match_bool {match_true=ta;match_false=fa}, Match_bool {match_true=tb;match_false=fb} ->
-    expression_eq ta tb && expression_eq fa fb
-  | Match_bool _, _ -> false
-  | Match_option {match_some={opt=a;body=sa;_};match_none=na}, Match_option {match_some={opt=b;body=sb;_};match_none=nb} ->
-    Var.equal a b && expression_eq sa sb && expression_eq na nb
-  | Match_option _, _ -> false 
-  | Match_list {match_nil=na;match_cons={hd=a;tl=aa;body=ca;_}}, Match_list {match_nil=nb;match_cons={hd=b;tl=bb;body=cb;_}} ->
-    expression_eq na nb && Var.equal a b && Var.equal aa bb && expression_eq ca cb
-  | Match_list _, _ -> false
-  | Match_tuple {vars=la;body=a;_}, Match_tuple {vars=lb;body=b;_} ->
-    let lst = List.combine la lb in
-    let aux res (a,b) = res && Var.equal a b in
-    List.fold_left aux (expression_eq a b) lst
-  | Match_tuple _, _ -> false
-  | Match_variant {cases=la;_}, Match_variant {cases=lb;_} ->
-    let lst = List.combine la lb in
-    let aux res ({constructor=Constructor ca;pattern=va;body=a}, {constructor=Constructor cb;pattern=vb;body=b}) = 
-      res && String.equal ca cb && Var.equal va vb && expression_eq a b 
-    in
-    List.fold_left aux true lst 
-  | Match_variant _, _ -> false
+  |  _, _ -> false