diff options
Diffstat (limited to '')
| -rw-r--r-- | compiler/Assumed.ml | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/compiler/Assumed.ml b/compiler/Assumed.ml index 2fbb9044..e0a2efea 100644 --- a/compiler/Assumed.ml +++ b/compiler/Assumed.ml @@ -42,6 +42,8 @@ module Sig = struct let rg_id_0 = T.RegionGroupId.of_int 0 let tvar_id_0 = T.TypeVarId.of_int 0 let tvar_0 : T.sty = T.TypeVar tvar_id_0 + let cgvar_id_0 = T.ConstGenericVarId.of_int 0 + let cgvar_0 : T.const_generic = T.ConstGenericVar cgvar_id_0 (** Region 'a of id 0 *) let region_param_0 : T.region_var = { T.index = rvar_id_0; name = Some "'a" } @@ -53,6 +55,12 @@ module Sig = struct (** Type parameter [T] of id 0 *) let type_param_0 : T.type_var = { T.index = tvar_id_0; name = "T" } + let usize_ty : T.sty = T.Literal (Integer Usize) + + (** Const generic parameter [const N : usize] of id 0 *) + let cg_param_0 : T.const_generic_var = + { T.index = cgvar_id_0; name = "N"; ty = Integer Usize } + let empty_const_generic_params : T.const_generic_var list = [] let mk_ref_ty (r : T.RegionVarId.id T.region) (ty : T.sty) (is_mut : bool) : @@ -60,6 +68,12 @@ module Sig = struct let ref_kind = if is_mut then T.Mut else T.Shared in mk_ref_ty r ty ref_kind + let mk_array_ty (ty : T.sty) (cg : T.const_generic) : T.sty = + Adt (Assumed Array, [], [ ty ], [ cg ]) + + let mk_slice_ty (ty : T.sty) : T.sty = Adt (Assumed Slice, [], [ ty ], []) + let range_ty : T.sty = Adt (Assumed Range, [], [ usize_ty ], []) + (** [fn<T>(&'a mut T, T) -> T] *) let mem_replace_sig : A.fun_sig = (* The signature fields *) @@ -243,6 +257,96 @@ module Sig = struct (** [fn<T>(&'a mut Vec<T>, usize) -> &'a mut T] *) let vec_index_mut_sig : A.fun_sig = vec_index_gen_sig true + + (** Array/slice functions *) + + (** Small helper. + + Return the type: + {[ + fn<'a, T>(&'a input_ty, index_ty) -> &'a output_ty + ]} + + Remarks: + The [input_ty] and [output_ty] are parameterized by a type variable id. + The [mut_borrow] boolean controls whether we use a shared or a mutable + borrow. + *) + let mk_array_slice_borrow_sig (cgs : T.const_generic_var list) + (input_ty : T.TypeVarId.id -> T.sty) (index_ty : T.sty option) + (output_ty : T.TypeVarId.id -> T.sty) (is_mut : bool) : A.fun_sig = + (* The signature fields *) + let region_params = [ region_param_0 ] in + let regions_hierarchy = [ region_group_0 ] (* <'a> *) in + let type_params = [ type_param_0 ] (* <T> *) in + let inputs = + [ + mk_ref_ty rvar_0 + (input_ty type_param_0.index) + is_mut (* &'a (mut) input_ty<T> *); + ] + in + let inputs = + List.append inputs (match index_ty with None -> [] | Some ty -> [ ty ]) + in + let output = + mk_ref_ty rvar_0 + (output_ty type_param_0.index) + is_mut (* &'a (mut) output_ty<T> *) + in + { + region_params; + num_early_bound_regions = 0; + regions_hierarchy; + type_params; + const_generic_params = cgs; + inputs; + output; + } + + let mk_array_slice_index_sig (is_array : bool) (is_mut : bool) : A.fun_sig = + (* Array<T, N> *) + let input_ty id = + if is_array then mk_array_ty (T.TypeVar id) cgvar_0 + else mk_slice_ty (T.TypeVar id) + in + (* usize *) + let index_ty = usize_ty in + (* T *) + let output_ty id = T.TypeVar id in + let cgs = if is_array then [ cg_param_0 ] else [] in + mk_array_slice_borrow_sig cgs input_ty (Some index_ty) output_ty is_mut + + let array_index_sig (is_mut : bool) = mk_array_slice_index_sig true is_mut + let slice_index_sig (is_mut : bool) = mk_array_slice_index_sig false is_mut + + let array_to_slice_sig (is_mut : bool) : A.fun_sig = + (* Array<T, N> *) + let input_ty id = mk_array_ty (T.TypeVar id) cgvar_0 in + (* Slice<T> *) + let output_ty id = mk_slice_ty (T.TypeVar id) in + let cgs = [ cg_param_0 ] in + mk_array_slice_borrow_sig cgs input_ty None output_ty is_mut + + let mk_array_slice_subslice_sig (is_array : bool) (is_mut : bool) : A.fun_sig + = + (* Array<T, N> *) + let input_ty id = + if is_array then mk_array_ty (T.TypeVar id) cgvar_0 + else mk_slice_ty (T.TypeVar id) + in + (* Range *) + let index_ty = range_ty in + (* Slice<T> *) + let output_ty id = mk_slice_ty (T.TypeVar id) in + let cgs = if is_array then [ cg_param_0 ] else [] in + mk_array_slice_borrow_sig cgs input_ty (Some index_ty) output_ty is_mut + + let array_subslice_sig (is_mut : bool) = + mk_array_slice_subslice_sig true is_mut + + let slice_subslice_sig (is_mut : bool) = + mk_array_slice_subslice_sig false is_mut end type assumed_info = A.assumed_fun_id * A.fun_sig * bool * name @@ -289,6 +393,45 @@ let assumed_infos : assumed_info list = Sig.vec_index_mut_sig, true, to_name (index_pre @ [ "IndexMut"; "index_mut" ]) ); + (* Array Index *) + ( ArraySharedIndex, + Sig.array_index_sig false, + true, + to_name [ "@ArraySharedIndex" ] ); + (ArrayMutIndex, Sig.array_index_sig true, true, to_name [ "@ArrayMutIndex" ]); + (* Array to slice*) + ( ArrayToSharedSlice, + Sig.array_to_slice_sig false, + false, + to_name [ "@ArrayToSharedSlice" ] ); + ( ArrayToMutSlice, + Sig.array_to_slice_sig true, + false, + to_name [ "@ArrayToMutSlice" ] ); + (* Array Subslice *) + ( ArraySharedSubslice, + Sig.array_subslice_sig false, + true, + to_name [ "@ArraySharedSubslice" ] ); + ( ArrayMutSubslice, + Sig.array_subslice_sig true, + true, + to_name [ "@ArrayMutSubslice" ] ); + (* Slice Index *) + ( SliceSharedIndex, + Sig.slice_index_sig false, + true, + to_name [ "@SliceSharedIndex" ] ); + (SliceMutIndex, Sig.slice_index_sig true, true, to_name [ "@SliceMutIndex" ]); + (* Slice Subslice *) + ( SliceSharedSubslice, + Sig.slice_subslice_sig false, + true, + to_name [ "@SliceSharedSubslice" ] ); + ( SliceMutSubslice, + Sig.slice_subslice_sig true, + true, + to_name [ "@SliceMutSubslice" ] ); ] let get_assumed_info (id : A.assumed_fun_id) : assumed_info = |