fmt
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1 changed files with 52 additions and 50 deletions
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@ -214,7 +214,6 @@ and pattern_tagval
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-> HopixTypes.aty * HopixTypes.typing_environment
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=
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fun tenv cons tlist plist ->
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let cons_scheme =
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try HopixTypes.lookup_type_scheme_of_constructor cons.position cons.value tenv with
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| HopixTypes.Unbound (pos, Constructor (KId c)) ->
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@ -233,8 +232,7 @@ and pattern_tagval
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invalid_instantiation cons.position expected given
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in
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let p_args, tenv = synth_list_pattern tenv plist in
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(
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let expected_args, result =
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( (let expected_args, result =
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HopixTypes.destruct_function_type_maximally cons.position tcons
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in
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(try
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@ -249,15 +247,15 @@ and pattern_tagval
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cons.position
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~expected:result
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~given:(HopixTypes.ATyArrow (result, result)));
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result
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),tenv
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result)
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, tenv )
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and synth_list_pattern tenv = function
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| [] -> [], tenv
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| p :: plist ->
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| [] -> [], tenv
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| p :: plist ->
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let ty, tenv = synth_pattern tenv p in
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let tys, tenv = synth_list_pattern tenv plist in
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ty::tys, tenv
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ty :: tys, tenv
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and pattern_record
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: HopixTypes.typing_environment
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@ -266,12 +264,14 @@ and pattern_record
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-> HopixTypes.aty * HopixTypes.typing_environment
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=
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fun tenv plist tlist ->
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let label = fst(List.hd plist) in
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let type_cons,_,labels =
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let LId label_name = label.value in
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let label = fst (List.hd plist) in
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let type_cons, _, labels =
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let (LId label_name) = label.value in
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try HopixTypes.lookup_type_constructor_of_label label.position label.value tenv with
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| HopixTypes.Unbound (pos, Label (LId i)) ->
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HopixTypes.type_error pos (Printf.sprintf "There is no type definition for label `%s'." label_name )
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HopixTypes.type_error
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pos
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(Printf.sprintf "There is no type definition for label `%s'." label_name)
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in
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let tlist' =
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match tlist with
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@ -279,8 +279,8 @@ and pattern_record
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| None -> HopixTypes.type_error label.position "No types found."
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in
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let tenv =
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List.fold_left (
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fun tenv (Position.{ position = label_pos; value = label_val }, pat) ->
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List.fold_left
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(fun tenv (Position.{ position = label_pos; value = label_val }, pat) ->
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let label_scheme =
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try HopixTypes.lookup_type_scheme_of_label label_pos label_val tenv with
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| HopixTypes.Unbound (pos, Label (LId i)) ->
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@ -291,14 +291,16 @@ and pattern_record
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| HopixTypes.InvalidInstantiation { expected; given } ->
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invalid_instantiation (Position.position pat) expected given
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in
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let _,expected = HopixTypes.destruct_function_type label_pos instance_type_scheme in
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let (given,tenv) = synth_pattern tenv pat in
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check_equal_types label_pos ~expected ~given; tenv
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) tenv plist;
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let _, expected =
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HopixTypes.destruct_function_type label_pos instance_type_scheme
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in
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ATyCon(type_cons, tlist'),tenv
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let given, tenv = synth_pattern tenv pat in
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check_equal_types label_pos ~expected ~given;
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tenv)
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tenv
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plist
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in
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ATyCon (type_cons, tlist'), tenv
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and synth_variable
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: HopixTypes.typing_environment -> identifier Position.located
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