65 lines
1.9 KiB
OCaml
65 lines
1.9 KiB
OCaml
open C
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open Obc
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open Ident
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open Names
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let rec subst_stm map stm =
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match stm with
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| Csexpr e -> Csexpr (subst_exp map e)
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| Cskip -> Cskip
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| Creturn e -> Creturn (subst_exp map e)
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| Csblock cblock ->
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Csblock (subst_block map cblock)
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| Caffect (lhs, e) ->
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Caffect(subst_lhs map lhs, subst_exp map e)
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| Cif (e, truel, falsel) ->
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Cif (subst_exp map e, subst_stm_list map truel,
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subst_stm_list map falsel)
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| Cswitch (e, l) ->
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Cswitch (subst_exp map e, List.map (fun (s, sl) -> s, subst_stm_list map sl) l)
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| Cwhile (e, l) ->
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Cwhile (subst_exp map e, subst_stm_list map l)
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| Cfor (x, i1, i2, l) ->
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Cfor (x, i1, i2, subst_stm_list map l)
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and subst_stm_list map =
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List.map (subst_stm map)
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and subst_lhs map lhs =
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match lhs with
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| Cvar n ->
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if NamesEnv.mem n map then
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NamesEnv.find n map
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else
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lhs
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| Cfield (lhs, s) -> Cfield (subst_lhs map lhs, s)
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| Carray (lhs, n) -> Carray (subst_lhs map lhs, n)
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| Cderef lhs -> Cderef (subst_lhs map lhs)
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and subst_exp map = function
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| Cuop (op, e) -> Cuop (op, subst_exp map e)
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| Cbop (s, l, r) -> Cbop (s, subst_exp map l, subst_exp map r)
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| Cfun_call (s, el) -> Cfun_call (s, subst_exp_list map el)
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| Cconst x -> Cconst x
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| Clhs lhs -> Clhs (subst_lhs map lhs)
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| Caddrof lhs -> Caddrof (subst_lhs map lhs)
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| Cstructlit (s, el) -> Cstructlit (s, subst_exp_list map el)
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| Carraylit el -> Carraylit (subst_exp_list map el)
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and subst_exp_list map =
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List.map (subst_exp map)
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and subst_block map b =
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{b with block_body = subst_stm_list map b.block_body}
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let assoc_map_for_fun sf =
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match sf.out with
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| [] -> NamesEnv.empty
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| [vd] when Obc.is_scalar_type (List.hd sf.out) ->
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NamesEnv.empty
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| out ->
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let fill_field map vd =
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NamesEnv.add (name vd.v_name) (Cfield (Cderef (Cvar "self"), name vd.v_name)) map
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in
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List.fold_left fill_field NamesEnv.empty out
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