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fix detection of matching on bool in the spiller

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This commit is contained in:
Pierre-Emmanuel Wulfman 2020-07-02 23:21:14 +02:00
parent 2f0ffc10ac
commit 2893fc0412
2 changed files with 20 additions and 6 deletions
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9
src/passes/11-interpreter/interpreter.ml
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@ -342,8 +342,13 @@ and eval : Ast_typed.expression -> env -> (value , _) result
let {hd;tl;body;tv=_} = cases.match_cons in
let env' = Env.extend (Env.extend env (hd,head)) (tl, V_List tail) in
eval body env'
| Match_variant {cases=[{constructor=Constructor t;body=match_true};{constructor=Constructor f; body=match_false}];_}, V_Ct (C_bool b)
when String.equal t "true" && String.equal f "false" ->
| Match_variant {cases;_}, V_Ct (C_bool b) ->
let ctor_body (case : matching_content_case) = (case.constructor, case.body) in
let cases = CMap.of_list (List.map ctor_body cases) in
let get_case c =
(CMap.find (Constructor c) cases) in
let match_true = get_case "true" in
let match_false = get_case "false" in
if b then eval match_true env
else eval match_false env
| Match_variant {cases ; tv=_} , V_Construct (matched_c , proj) ->

15
src/passes/11-spilling/compiler.ml
View File

@ -468,11 +468,20 @@ and compile_expression (ae:AST.expression) : (expression , spilling_error) resul
in
return @@ E_if_cons (expr' , nil , cons)
)
| Match_variant {cases=[{constructor=Constructor t;body=match_true};{constructor=Constructor f;body=match_false}];_}
when String.equal t "true" && String.equal f "false" ->
| Match_variant {cases ; tv} -> (
match expr'.type_expression.type_content with
| T_base TB_bool ->
let ctor_body (case : AST.matching_content_case) = (case.constructor, case.body) in
let cases = AST.CMap.of_list (List.map ctor_body cases) in
let get_case c =
trace_option
(corner_case ~loc:__LOC__ ("missing " ^ c ^ " case in match"))
(AST.CMap.find_opt (Constructor c) cases) in
let%bind match_true = get_case "true" in
let%bind match_false = get_case "false" in
let%bind (t , f) = bind_map_pair (compile_expression) (match_true, match_false) in
return @@ E_if_bool (expr', t, f)
| Match_variant {cases ; tv} -> (
| _ ->
let%bind tree =
trace_strong (corner_case ~loc:__LOC__ "getting lr tree") @@
tree_of_sum tv in