diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/Values.ml | 238 |
1 files changed, 156 insertions, 82 deletions
diff --git a/src/Values.ml b/src/Values.ml index 4acce0e6..7b5e9537 100644 --- a/src/Values.ml +++ b/src/Values.ml @@ -66,23 +66,23 @@ type symbolic_proj_comp = { *) (** Polymorphic iter visitor *) -class virtual ['self] iter_'r_ty_base = +class ['self] iter_'r_ty_base = object (self : 'self) method visit_ty : 'env 'r. ('env -> 'r -> unit) -> 'env -> 'r ty -> unit = fun _visit_'r _env _ty -> () end -(** Polymorphic map visitor *) -class virtual ['self] map_'r_ty_base = - object (self : 'self) - method visit_ty - : 'env 'r_0 'r_1. ('env -> 'r_0 -> 'r_1) -> 'env -> 'r_0 ty -> 'r_1 ty = - fun _visit_'r _env ty -> - (* We should use a ty visitor, but in practice we don't need to - * visit types, and for the non-generic visit methods (which will - * preserve 'r_0) we will override this method with identity *) - raise Errors.Unimplemented - end +(*(** Polymorphic map visitor *) + class ['self] map_'r_ty_base = + object (self : 'self) + method visit_ty + : 'env 'r_0 'r_1. ('env -> 'r_0 -> 'r_1) -> 'env -> 'r_0 ty -> 'r_1 ty = + fun _visit_'r _env ty -> + (* We should use a ty visitor, but in practice we don't need to + * visit types, and for the non-generic visit methods (which will + * preserve 'r_0) we will override this method with identity *) + raise Errors.Unimplemented + end*) (** A generic, untyped value, used in the environments. @@ -124,16 +124,16 @@ and ('r, 'sv, 'bc, 'lc) g_typed_value = { polymorphic = true; (* Heirs expect a polymorphic class *) concrete = true; - }, - visitors - { - name = "map_g_typed_value"; - variety = "map"; - ancestors = [ "map_'r_ty_base" ]; - polymorphic = true; - (* Heirs expect a polymorphic class *) - concrete = true; - }] + } + (* visitors + { + name = "map_g_typed_value"; + variety = "map"; + ancestors = [ "map_'r_ty_base" ]; + polymorphic = true; + (* Heirs expect a polymorphic class *) + concrete = true; + }*)] class ['self] iter_typed_value_base = object (self : 'self) @@ -146,17 +146,17 @@ class ['self] iter_typed_value_base = fun _env _ -> () end -class ['self] map_typed_value_base = - object (self : 'self) - inherit [_] map_g_typed_value +(*class ['self] map_typed_value_base = + object (self : 'self) + inherit [_] map_g_typed_value - method visit_erased_region : 'env. 'env -> erased_region -> erased_region = - fun _env r -> r + method visit_erased_region : 'env. 'env -> erased_region -> erased_region = + fun _env r -> r - method visit_symbolic_proj_comp - : 'env. 'env -> symbolic_proj_comp -> symbolic_proj_comp = - fun _env pc -> pc - end + method visit_symbolic_proj_comp + : 'env. 'env -> symbolic_proj_comp -> symbolic_proj_comp = + fun _env pc -> pc + end*) type value = (erased_region, symbolic_proj_comp, borrow_content, loan_content) g_value @@ -200,28 +200,28 @@ and typed_value = ancestors = [ "iter_typed_value_base" ]; nude = true (* Don't inherit [VisitorsRuntime.iter] *); concrete = true; - }, - visitors - { - name = "map_typed_value_incomplete"; - variety = "map"; - ancestors = [ "map_typed_value_base" ]; - nude = true (* Don't inherit [VisitorsRuntime.iter] *); - concrete = true; - }] + } + (* visitors + { + name = "map_typed_value_incomplete"; + variety = "map"; + ancestors = [ "map_typed_value_base" ]; + nude = true (* Don't inherit [VisitorsRuntime.iter] *); + concrete = true; + }*)] (** "Regular" typed value (we map variables to typed values) *) -(** Override some undefined functions *) -class ['self] map_typed_value = - object (self : 'self) - inherit [_] map_typed_value_incomplete +(*(** Override some undefined functions *) + class ['self] map_typed_value = + object (self : 'self) + inherit [_] map_typed_value_incomplete - method! visit_typed_value (env : 'env) (tv : typed_value) : typed_value = - let value = self#visit_value env tv.value in - (* Ignore the type *) - let ty = tv.ty in - { value; ty } - end + method! visit_typed_value (env : 'env) (tv : typed_value) : typed_value = + let value = self#visit_value env tv.value in + (* Ignore the type *) + let ty = tv.ty in + { value; ty } + end*) type abstract_shared_borrows = | AsbSet of BorrowId.set_t @@ -253,21 +253,21 @@ class ['self] iter_typed_avalue_base = fun _env _asb -> () end -class ['self] map_typed_avalue_base = - object (self : 'self) - inherit [_] map_g_typed_value +(*class ['self] map_typed_avalue_base = + object (self : 'self) + inherit [_] map_g_typed_value - method visit_region : 'env. 'env -> region -> region = fun _env r -> r + method visit_region : 'env. 'env -> region -> region = fun _env r -> r - method visit_aproj : 'env. 'env -> aproj -> aproj = fun env p -> p + method visit_aproj : 'env. 'env -> aproj -> aproj = fun env p -> p - method visit_typed_value : 'env. 'env -> typed_value -> typed_value = - fun _env v -> v + method visit_typed_value : 'env. 'env -> typed_value -> typed_value = + fun _env v -> v - method visit_abstract_shared_borrows - : 'env. 'env -> abstract_shared_borrows -> abstract_shared_borrows = - fun _env asb -> asb - end + method visit_abstract_shared_borrows + : 'env. 'env -> abstract_shared_borrows -> abstract_shared_borrows = + fun _env asb -> asb + end*) type avalue = (region, aproj, aborrow_content, aloan_content) g_value (** Abstraction values are used inside of abstractions to properly model @@ -307,27 +307,27 @@ and typed_avalue = (region, aproj, aborrow_content, aloan_content) g_typed_value ancestors = [ "iter_typed_avalue_base" ]; nude = true (* Don't inherit [VisitorsRuntime.iter] *); concrete = true; - }, - visitors - { - name = "map_typed_avalue_incomplete"; - variety = "map"; - ancestors = [ "map_typed_avalue_base" ]; - nude = true (* Don't inherit [VisitorsRuntime.iter] *); - concrete = true; - }] - -(** Override some undefined functions *) -class ['self] map_typed_avalue = - object (self : 'self) - inherit [_] map_typed_avalue_incomplete - - method! visit_typed_avalue (env : 'env) (tv : typed_avalue) : typed_avalue = - let value = self#visit_avalue env tv.value in - (* Ignore the type *) - let ty = tv.ty in - { value; ty } - end + } + (* visitors + { + name = "map_typed_avalue_incomplete"; + variety = "map"; + ancestors = [ "map_typed_avalue_base" ]; + nude = true (* Don't inherit [VisitorsRuntime.iter] *); + concrete = true; + }*)] + +(*(** Override some undefined functions *) + class ['self] map_typed_avalue = + object (self : 'self) + inherit [_] map_typed_avalue_incomplete + + method! visit_typed_avalue (env : 'env) (tv : typed_avalue) : typed_avalue = + let value = self#visit_avalue env tv.value in + (* Ignore the type *) + let ty = tv.ty in + { value; ty } + end*) type abs = { abs_id : AbstractionId.id; @@ -345,3 +345,77 @@ type abs = { In order to model the relations between the borrows, we use "abstraction values", which are a special kind of value. *) + +class virtual ['self] map_g_value = + object (self : 'self) + inherit [_] VisitorsRuntime.map + + method virtual visit_'sv : 'monomorphic. 'env -> 'sv -> 'sv + + method virtual visit_'bc : 'monomorphic. 'env -> 'bc -> 'bc + + method virtual visit_'lc : 'monomorphic. 'env -> 'lc -> 'lc + + method visit_Concrete + : 'monomorphic. 'env -> constant_value -> ('r, 'sv, 'bc, 'lv) g_value = + fun _env cv -> Concrete cv + + method visit_Adt + : 'monomorphic. + 'env -> ('r, 'sv, 'bc, 'lc) g_adt_value -> ('r, 'sv, 'bc, 'lc) g_value + = + fun env av -> + let av = self#visit_g_adt_value env av in + Adt av + + method visit_Bottom : 'monomorphic. 'env -> ('r, 'sv, 'bc, 'lv) g_value = + fun _env -> Bottom + + method visit_Borrow + : 'monomorphic. 'env -> 'bc -> ('r, 'sv, 'bc, 'lv) g_value = + fun env bc -> Borrow (self#visit_'bc env bc) + + method visit_Loan : 'monomorphic. 'env -> 'lc -> ('r, 'sv, 'bc, 'lv) g_value + = + fun env lc -> Loan (self#visit_'lc env lc) + + method visit_Symbolic + : 'monomorphic. 'env -> 'sv -> ('r, 'sv, 'bc, 'lv) g_value = + fun env sv -> Symbolic (self#visit_'sv env sv) + + method visit_g_value + : 'monomorphic. + 'env -> ('r, 'sv, 'bc, 'lv) g_value -> ('r, 'sv, 'bc, 'lv) g_value = + fun env v -> + match v with + | Concrete cv -> self#visit_Concrete env cv + | Adt av -> Adt (self#visit_g_adt_value env av) + | Bottom -> self#visit_Bottom env + | Borrow bc -> self#visit_Borrow env bc + | Loan lc -> self#visit_Loan env lc + | Symbolic sv -> self#visit_Symbolic env sv + + method visit_g_adt_value + : 'monomorphic. + 'env -> + ('r, 'sv, 'bc, 'lv) g_adt_value -> + ('r, 'sv, 'bc, 'lv) g_adt_value = + fun env av -> + let variant_id = av.variant_id in + let field_values = + self#visit_list self#visit_g_typed_value env av.field_values + in + { variant_id; field_values } + + method visit_g_typed_value + : 'monomorphic. + 'env -> + ('r, 'sv, 'bc, 'lv) g_typed_value -> + ('r, 'sv, 'bc, 'lv) g_typed_value = + fun env v -> + let value = self#visit_g_value env v.value in + let ty = self#visit_ty env v.ty in + { value; ty } + + method visit_ty : 'monomorphic. 'env -> 'r ty -> 'r ty = fun _env ty -> ty + end |