diff options
Diffstat (limited to '')
| -rw-r--r-- | Makefile | 25 | ||||
| -rw-r--r-- | backends/fstar/Makefile (renamed from backends/fstar/merge/Makefile) | 0 | ||||
| -rw-r--r-- | backends/fstar/Primitives.fst (renamed from backends/fstar/merge/Primitives.fst) | 0 | ||||
| -rw-r--r-- | backends/fstar/split/Makefile | 47 | ||||
| -rw-r--r-- | backends/fstar/split/Primitives.fst | 884 |
5 files changed, 4 insertions, 952 deletions
@@ -70,11 +70,9 @@ build-bin-dir: build-bin build-lib mkdir -p bin cp -f compiler/_build/default/main.exe bin/aeneas cp -f compiler/_build/default/main.exe bin/aeneas.cmxs - mkdir -p bin/backends/fstar/split - mkdir -p bin/backends/fstar/merge + mkdir -p bin/backends/fstar mkdir -p bin/backends/coq - cp -rf backends/fstar/split/*.fst* bin/backends/fstar/split/ - cp -rf backends/fstar/merge/*.fst* bin/backends/fstar/merge/ + cp -rf backends/fstar/*.fst* bin/backends/fstar/ cp -rf backends/coq/*.v bin/backends/coq/ .PHONY: doc @@ -263,29 +261,14 @@ testp-%: gen-llbcp-% tfstarp-% tcoqp-% tleanp-% thol4p-% .PHONY: tfstar-% tfstar-%: OPTIONS += -backend fstar tfstar-%: BACKEND_SUBDIR := fstar -tfstar-%: tsplit-fstar-% +tfstar-%: $(AENEAS_CMD) # "p" stands for "Polonius" .PHONY: tfstarp-% tfstarp-%: OPTIONS += -backend fstar tfstarp-%: BACKEND_SUBDIR := fstar -tfstarp-%: tsplit-fstarp-% - $(AENEAS_CMD) - -# Test where we split the forward/backward functions -.PHONY: tsplit-fstar-% -tsplit-fstar-%: OPTIONS += -backend fstar -split-fwd-back -tsplit-fstar-%: BACKEND_SUBDIR := fstar-split -tsplit-fstar-%: - $(AENEAS_CMD) - -# Test where we split the forward/backward functions -# "p" stands for "Polonius" -.PHONY: tsplit-fstarp-% -tsplit-fstarp-%: OPTIONS += -backend fstar -split-fwd-back -tsplit-fstarp-%: BACKEND_SUBDIR := fstar-split -tsplit-fstarp-%: +tfstarp-%: $(AENEAS_CMD) .PHONY: tcoq-% diff --git a/backends/fstar/merge/Makefile b/backends/fstar/Makefile index a16b0edb..a16b0edb 100644 --- a/backends/fstar/merge/Makefile +++ b/backends/fstar/Makefile diff --git a/backends/fstar/merge/Primitives.fst b/backends/fstar/Primitives.fst index fca80829..fca80829 100644 --- a/backends/fstar/merge/Primitives.fst +++ b/backends/fstar/Primitives.fst diff --git a/backends/fstar/split/Makefile b/backends/fstar/split/Makefile deleted file mode 100644 index a16b0edb..00000000 --- a/backends/fstar/split/Makefile +++ /dev/null @@ -1,47 +0,0 @@ -INCLUDE_DIRS = . - -FSTAR_INCLUDES = $(addprefix --include ,$(INCLUDE_DIRS)) - -FSTAR_HINTS ?= --use_hints --use_hint_hashes --record_hints - -FSTAR_OPTIONS = $(FSTAR_HINTS) \ - --cache_checked_modules $(FSTAR_INCLUDES) --cmi \ - --warn_error '+241@247+285-274' \ - -FSTAR_NO_FLAGS = fstar.exe --already_cached 'Prims FStar LowStar Steel' --odir obj --cache_dir obj - -FSTAR = $(FSTAR_NO_FLAGS) $(FSTAR_OPTIONS) - -# The F* roots are used to compute the dependency graph, and generate the .depend file -FSTAR_ROOTS ?= $(wildcard *.fst *.fsti) - -# Build all the files -all: $(addprefix obj/,$(addsuffix .checked,$(FSTAR_ROOTS))) - -# This is the right way to ensure the .depend file always gets re-built. -ifeq (,$(filter %-in,$(MAKECMDGOALS))) -ifndef NODEPEND -ifndef MAKE_RESTARTS -.depend: .FORCE - $(FSTAR_NO_FLAGS) --dep full $(notdir $(FSTAR_ROOTS)) > $@ - -.PHONY: .FORCE -.FORCE: -endif -endif - -include .depend -endif - -# For the interactive mode -%.fst-in %.fsti-in: - @echo $(FSTAR_OPTIONS) - -# Generete the .checked files in batch mode -%.checked: - $(FSTAR) $(FSTAR_OPTIONS) $< && \ - touch -c $@ - -.PHONY: clean -clean: - rm -f obj/* diff --git a/backends/fstar/split/Primitives.fst b/backends/fstar/split/Primitives.fst deleted file mode 100644 index a3ffbde4..00000000 --- a/backends/fstar/split/Primitives.fst +++ /dev/null @@ -1,884 +0,0 @@ -/// This file lists primitive and assumed functions and types -module Primitives -open FStar.Mul -open FStar.List.Tot - -#set-options "--z3rlimit 15 --fuel 0 --ifuel 1" - -(*** Utilities *) -val list_update (#a : Type0) (ls : list a) (i : nat{i < length ls}) (x : a) : - ls':list a{ - length ls' = length ls /\ - index ls' i == x - } -#push-options "--fuel 1" -let rec list_update #a ls i x = - match ls with - | x' :: ls -> if i = 0 then x :: ls else x' :: list_update ls (i-1) x -#pop-options - -(*** Result *) -type error : Type0 = -| Failure -| OutOfFuel - -type result (a : Type0) : Type0 = -| Return : v:a -> result a -| Fail : e:error -> result a - -// Monadic return operator -unfold let return (#a : Type0) (x : a) : result a = Return x - -// Monadic bind operator. -// Allows to use the notation: -// ``` -// let* x = y in -// ... -// ``` -unfold let (let*) (#a #b : Type0) (m: result a) - (f: (x:a) -> Pure (result b) (requires (m == Return x)) (ensures fun _ -> True)) : - result b = - match m with - | Return x -> f x - | Fail e -> Fail e - -// Monadic assert(...) -let massert (b:bool) : result unit = if b then Return () else Fail Failure - -// Normalize and unwrap a successful result (used for globals). -let eval_global (#a : Type0) (x : result a{Return? (normalize_term x)}) : a = Return?.v x - -(*** Misc *) -type char = FStar.Char.char -type string = string - -let is_zero (n: nat) : bool = n = 0 -let decrease (n: nat{n > 0}) : nat = n - 1 - -let core_mem_replace (a : Type0) (x : a) (y : a) : a = x -let core_mem_replace_back (a : Type0) (x : a) (y : a) : a = y - -// We don't really use raw pointers for now -type mut_raw_ptr (t : Type0) = { v : t } -type const_raw_ptr (t : Type0) = { v : t } - -(*** Scalars *) -/// Rem.: most of the following code was partially generated - -assume val size_numbits : pos - -// TODO: we could use FStar.Int.int_t and FStar.UInt.int_t - -let isize_min : int = -9223372036854775808 // TODO: should be opaque -let isize_max : int = 9223372036854775807 // TODO: should be opaque -let i8_min : int = -128 -let i8_max : int = 127 -let i16_min : int = -32768 -let i16_max : int = 32767 -let i32_min : int = -2147483648 -let i32_max : int = 2147483647 -let i64_min : int = -9223372036854775808 -let i64_max : int = 9223372036854775807 -let i128_min : int = -170141183460469231731687303715884105728 -let i128_max : int = 170141183460469231731687303715884105727 -let usize_min : int = 0 -let usize_max : int = 4294967295 // TODO: should be opaque -let u8_min : int = 0 -let u8_max : int = 255 -let u16_min : int = 0 -let u16_max : int = 65535 -let u32_min : int = 0 -let u32_max : int = 4294967295 -let u64_min : int = 0 -let u64_max : int = 18446744073709551615 -let u128_min : int = 0 -let u128_max : int = 340282366920938463463374607431768211455 - -type scalar_ty = -| Isize -| I8 -| I16 -| I32 -| I64 -| I128 -| Usize -| U8 -| U16 -| U32 -| U64 -| U128 - -let is_unsigned = function - | Isize | I8 | I16 | I32 | I64 | I128 -> false - | Usize | U8 | U16 | U32 | U64 | U128 -> true - -let scalar_min (ty : scalar_ty) : int = - match ty with - | Isize -> isize_min - | I8 -> i8_min - | I16 -> i16_min - | I32 -> i32_min - | I64 -> i64_min - | I128 -> i128_min - | Usize -> usize_min - | U8 -> u8_min - | U16 -> u16_min - | U32 -> u32_min - | U64 -> u64_min - | U128 -> u128_min - -let scalar_max (ty : scalar_ty) : int = - match ty with - | Isize -> isize_max - | I8 -> i8_max - | I16 -> i16_max - | I32 -> i32_max - | I64 -> i64_max - | I128 -> i128_max - | Usize -> usize_max - | U8 -> u8_max - | U16 -> u16_max - | U32 -> u32_max - | U64 -> u64_max - | U128 -> u128_max - -type scalar (ty : scalar_ty) : eqtype = x:int{scalar_min ty <= x && x <= scalar_max ty} - -let mk_scalar (ty : scalar_ty) (x : int) : result (scalar ty) = - if scalar_min ty <= x && scalar_max ty >= x then Return x else Fail Failure - -let scalar_neg (#ty : scalar_ty) (x : scalar ty) : result (scalar ty) = mk_scalar ty (-x) - -let scalar_div (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) = - if y <> 0 then mk_scalar ty (x / y) else Fail Failure - -/// The remainder operation -let int_rem (x : int) (y : int{y <> 0}) : int = - if x >= 0 then (x % y) else -(x % y) - -(* Checking consistency with Rust *) -let _ = assert_norm(int_rem 1 2 = 1) -let _ = assert_norm(int_rem (-1) 2 = -1) -let _ = assert_norm(int_rem 1 (-2) = 1) -let _ = assert_norm(int_rem (-1) (-2) = -1) - -let scalar_rem (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) = - if y <> 0 then mk_scalar ty (int_rem x y) else Fail Failure - -let scalar_add (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) = - mk_scalar ty (x + y) - -let scalar_sub (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) = - mk_scalar ty (x - y) - -let scalar_mul (#ty : scalar_ty) (x : scalar ty) (y : scalar ty) : result (scalar ty) = - mk_scalar ty (x * y) - -let scalar_xor (#ty : scalar_ty) - (x : scalar ty) (y : scalar ty) : scalar ty = - match ty with - | U8 -> FStar.UInt.logxor #8 x y - | U16 -> FStar.UInt.logxor #16 x y - | U32 -> FStar.UInt.logxor #32 x y - | U64 -> FStar.UInt.logxor #64 x y - | U128 -> FStar.UInt.logxor #128 x y - | Usize -> admit() // TODO - | I8 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 8); - normalize_spec (scalar I8); - FStar.Int.logxor #8 x y - | I16 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 16); - normalize_spec (scalar I16); - FStar.Int.logxor #16 x y - | I32 -> FStar.Int.logxor #32 x y - | I64 -> FStar.Int.logxor #64 x y - | I128 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 128); - normalize_spec (scalar I128); - FStar.Int.logxor #128 x y - | Isize -> admit() // TODO - -let scalar_or (#ty : scalar_ty) - (x : scalar ty) (y : scalar ty) : scalar ty = - match ty with - | U8 -> FStar.UInt.logor #8 x y - | U16 -> FStar.UInt.logor #16 x y - | U32 -> FStar.UInt.logor #32 x y - | U64 -> FStar.UInt.logor #64 x y - | U128 -> FStar.UInt.logor #128 x y - | Usize -> admit() // TODO - | I8 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 8); - normalize_spec (scalar I8); - FStar.Int.logor #8 x y - | I16 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 16); - normalize_spec (scalar I16); - FStar.Int.logor #16 x y - | I32 -> FStar.Int.logor #32 x y - | I64 -> FStar.Int.logor #64 x y - | I128 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 128); - normalize_spec (scalar I128); - FStar.Int.logor #128 x y - | Isize -> admit() // TODO - -let scalar_and (#ty : scalar_ty) - (x : scalar ty) (y : scalar ty) : scalar ty = - match ty with - | U8 -> FStar.UInt.logand #8 x y - | U16 -> FStar.UInt.logand #16 x y - | U32 -> FStar.UInt.logand #32 x y - | U64 -> FStar.UInt.logand #64 x y - | U128 -> FStar.UInt.logand #128 x y - | Usize -> admit() // TODO - | I8 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 8); - normalize_spec (scalar I8); - FStar.Int.logand #8 x y - | I16 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 16); - normalize_spec (scalar I16); - FStar.Int.logand #16 x y - | I32 -> FStar.Int.logand #32 x y - | I64 -> FStar.Int.logand #64 x y - | I128 -> - // Encoding issues... - normalize_spec (FStar.Int.int_t 128); - normalize_spec (scalar I128); - FStar.Int.logand #128 x y - | Isize -> admit() // TODO - -// Shift left -let scalar_shl (#ty0 #ty1 : scalar_ty) - (x : scalar ty0) (y : scalar ty1) : result (scalar ty0) = - admit() - -// Shift right -let scalar_shr (#ty0 #ty1 : scalar_ty) - (x : scalar ty0) (y : scalar ty1) : result (scalar ty0) = - admit() - -(** Cast an integer from a [src_ty] to a [tgt_ty] *) -// TODO: check the semantics of casts in Rust -let scalar_cast (src_ty : scalar_ty) (tgt_ty : scalar_ty) (x : scalar src_ty) : result (scalar tgt_ty) = - mk_scalar tgt_ty x - -// This can't fail, but for now we make all casts faillible (easier for the translation) -let scalar_cast_bool (tgt_ty : scalar_ty) (x : bool) : result (scalar tgt_ty) = - mk_scalar tgt_ty (if x then 1 else 0) - -/// The scalar types -type isize : eqtype = scalar Isize -type i8 : eqtype = scalar I8 -type i16 : eqtype = scalar I16 -type i32 : eqtype = scalar I32 -type i64 : eqtype = scalar I64 -type i128 : eqtype = scalar I128 -type usize : eqtype = scalar Usize -type u8 : eqtype = scalar U8 -type u16 : eqtype = scalar U16 -type u32 : eqtype = scalar U32 -type u64 : eqtype = scalar U64 -type u128 : eqtype = scalar U128 - - -let core_isize_min : isize = isize_min -let core_isize_max : isize = isize_max -let core_i8_min : i8 = i8_min -let core_i8_max : i8 = i8_max -let core_i16_min : i16 = i16_min -let core_i16_max : i16 = i16_max -let core_i32_min : i32 = i32_min -let core_i32_max : i32 = i32_max -let core_i64_min : i64 = i64_min -let core_i64_max : i64 = i64_max -let core_i128_min : i128 = i128_min -let core_i128_max : i128 = i128_max - -let core_usize_min : usize = usize_min -let core_usize_max : usize = usize_max -let core_u8_min : u8 = u8_min -let core_u8_max : u8 = u8_max -let core_u16_min : u16 = u16_min -let core_u16_max : u16 = u16_max -let core_u32_min : u32 = u32_min -let core_u32_max : u32 = u32_max -let core_u64_min : u64 = u64_min -let core_u64_max : u64 = u64_max -let core_u128_min : u128 = u128_min -let core_u128_max : u128 = u128_max - -/// Negation -let isize_neg = scalar_neg #Isize -let i8_neg = scalar_neg #I8 -let i16_neg = scalar_neg #I16 -let i32_neg = scalar_neg #I32 -let i64_neg = scalar_neg #I64 -let i128_neg = scalar_neg #I128 - -/// Division -let isize_div = scalar_div #Isize -let i8_div = scalar_div #I8 -let i16_div = scalar_div #I16 -let i32_div = scalar_div #I32 -let i64_div = scalar_div #I64 -let i128_div = scalar_div #I128 -let usize_div = scalar_div #Usize -let u8_div = scalar_div #U8 -let u16_div = scalar_div #U16 -let u32_div = scalar_div #U32 -let u64_div = scalar_div #U64 -let u128_div = scalar_div #U128 - -/// Remainder -let isize_rem = scalar_rem #Isize -let i8_rem = scalar_rem #I8 -let i16_rem = scalar_rem #I16 -let i32_rem = scalar_rem #I32 -let i64_rem = scalar_rem #I64 -let i128_rem = scalar_rem #I128 -let usize_rem = scalar_rem #Usize -let u8_rem = scalar_rem #U8 -let u16_rem = scalar_rem #U16 -let u32_rem = scalar_rem #U32 -let u64_rem = scalar_rem #U64 -let u128_rem = scalar_rem #U128 - -/// Addition -let isize_add = scalar_add #Isize -let i8_add = scalar_add #I8 -let i16_add = scalar_add #I16 -let i32_add = scalar_add #I32 -let i64_add = scalar_add #I64 -let i128_add = scalar_add #I128 -let usize_add = scalar_add #Usize -let u8_add = scalar_add #U8 -let u16_add = scalar_add #U16 -let u32_add = scalar_add #U32 -let u64_add = scalar_add #U64 -let u128_add = scalar_add #U128 - -/// Subtraction -let isize_sub = scalar_sub #Isize -let i8_sub = scalar_sub #I8 -let i16_sub = scalar_sub #I16 -let i32_sub = scalar_sub #I32 -let i64_sub = scalar_sub #I64 -let i128_sub = scalar_sub #I128 -let usize_sub = scalar_sub #Usize -let u8_sub = scalar_sub #U8 -let u16_sub = scalar_sub #U16 -let u32_sub = scalar_sub #U32 -let u64_sub = scalar_sub #U64 -let u128_sub = scalar_sub #U128 - -/// Multiplication -let isize_mul = scalar_mul #Isize -let i8_mul = scalar_mul #I8 -let i16_mul = scalar_mul #I16 -let i32_mul = scalar_mul #I32 -let i64_mul = scalar_mul #I64 -let i128_mul = scalar_mul #I128 -let usize_mul = scalar_mul #Usize -let u8_mul = scalar_mul #U8 -let u16_mul = scalar_mul #U16 -let u32_mul = scalar_mul #U32 -let u64_mul = scalar_mul #U64 -let u128_mul = scalar_mul #U128 - -/// Xor -let u8_xor = scalar_xor #U8 -let u16_xor = scalar_xor #U16 -let u32_xor = scalar_xor #U32 -let u64_xor = scalar_xor #U64 -let u128_xor = scalar_xor #U128 -let usize_xor = scalar_xor #Usize -let i8_xor = scalar_xor #I8 -let i16_xor = scalar_xor #I16 -let i32_xor = scalar_xor #I32 -let i64_xor = scalar_xor #I64 -let i128_xor = scalar_xor #I128 -let isize_xor = scalar_xor #Isize - -/// Or -let u8_or = scalar_or #U8 -let u16_or = scalar_or #U16 -let u32_or = scalar_or #U32 -let u64_or = scalar_or #U64 -let u128_or = scalar_or #U128 -let usize_or = scalar_or #Usize -let i8_or = scalar_or #I8 -let i16_or = scalar_or #I16 -let i32_or = scalar_or #I32 -let i64_or = scalar_or #I64 -let i128_or = scalar_or #I128 -let isize_or = scalar_or #Isize - -/// And -let u8_and = scalar_and #U8 -let u16_and = scalar_and #U16 -let u32_and = scalar_and #U32 -let u64_and = scalar_and #U64 -let u128_and = scalar_and #U128 -let usize_and = scalar_and #Usize -let i8_and = scalar_and #I8 -let i16_and = scalar_and #I16 -let i32_and = scalar_and #I32 -let i64_and = scalar_and #I64 -let i128_and = scalar_and #I128 -let isize_and = scalar_and #Isize - -/// Shift left -let u8_shl #ty = scalar_shl #U8 #ty -let u16_shl #ty = scalar_shl #U16 #ty -let u32_shl #ty = scalar_shl #U32 #ty -let u64_shl #ty = scalar_shl #U64 #ty -let u128_shl #ty = scalar_shl #U128 #ty -let usize_shl #ty = scalar_shl #Usize #ty -let i8_shl #ty = scalar_shl #I8 #ty -let i16_shl #ty = scalar_shl #I16 #ty -let i32_shl #ty = scalar_shl #I32 #ty -let i64_shl #ty = scalar_shl #I64 #ty -let i128_shl #ty = scalar_shl #I128 #ty -let isize_shl #ty = scalar_shl #Isize #ty - -/// Shift right -let u8_shr #ty = scalar_shr #U8 #ty -let u16_shr #ty = scalar_shr #U16 #ty -let u32_shr #ty = scalar_shr #U32 #ty -let u64_shr #ty = scalar_shr #U64 #ty -let u128_shr #ty = scalar_shr #U128 #ty -let usize_shr #ty = scalar_shr #Usize #ty -let i8_shr #ty = scalar_shr #I8 #ty -let i16_shr #ty = scalar_shr #I16 #ty -let i32_shr #ty = scalar_shr #I32 #ty -let i64_shr #ty = scalar_shr #I64 #ty -let i128_shr #ty = scalar_shr #I128 #ty -let isize_shr #ty = scalar_shr #Isize #ty - -(*** core::ops *) - -// Trait declaration: [core::ops::index::Index] -noeq type core_ops_index_Index (self idx : Type0) = { - output : Type0; - index : self → idx → result output -} - -// Trait declaration: [core::ops::index::IndexMut] -noeq type core_ops_index_IndexMut (self idx : Type0) = { - indexInst : core_ops_index_Index self idx; - index_mut : self → idx → result indexInst.output; - index_mut_back : self → idx → indexInst.output → result self; -} - -// Trait declaration [core::ops::deref::Deref] -noeq type core_ops_deref_Deref (self : Type0) = { - target : Type0; - deref : self → result target; -} - -// Trait declaration [core::ops::deref::DerefMut] -noeq type core_ops_deref_DerefMut (self : Type0) = { - derefInst : core_ops_deref_Deref self; - deref_mut : self → result derefInst.target; - deref_mut_back : self → derefInst.target → result self; -} - -type core_ops_range_Range (a : Type0) = { - start : a; - end_ : a; -} - -(*** [alloc] *) - -let alloc_boxed_Box_deref (t : Type0) (x : t) : result t = Return x -let alloc_boxed_Box_deref_mut (t : Type0) (x : t) : result t = Return x -let alloc_boxed_Box_deref_mut_back (t : Type) (_ : t) (x : t) : result t = Return x - -// Trait instance -let alloc_boxed_Box_coreopsDerefInst (self : Type0) : core_ops_deref_Deref self = { - target = self; - deref = alloc_boxed_Box_deref self; -} - -// Trait instance -let alloc_boxed_Box_coreopsDerefMutInst (self : Type0) : core_ops_deref_DerefMut self = { - derefInst = alloc_boxed_Box_coreopsDerefInst self; - deref_mut = alloc_boxed_Box_deref_mut self; - deref_mut_back = alloc_boxed_Box_deref_mut_back self; -} - -(*** Array *) -type array (a : Type0) (n : usize) = s:list a{length s = n} - -// We tried putting the normalize_term condition as a refinement on the list -// but it didn't work. It works with the requires clause. -let mk_array (a : Type0) (n : usize) - (l : list a) : - Pure (array a n) - (requires (normalize_term(FStar.List.Tot.length l) = n)) - (ensures (fun _ -> True)) = - normalize_term_spec (FStar.List.Tot.length l); - l - -let array_index_usize (a : Type0) (n : usize) (x : array a n) (i : usize) : result a = - if i < length x then Return (index x i) - else Fail Failure - -let array_update_usize (a : Type0) (n : usize) (x : array a n) (i : usize) (nx : a) : result (array a n) = - if i < length x then Return (list_update x i nx) - else Fail Failure - -(*** Slice *) -type slice (a : Type0) = s:list a{length s <= usize_max} - -let slice_len (a : Type0) (s : slice a) : usize = length s - -let slice_index_usize (a : Type0) (x : slice a) (i : usize) : result a = - if i < length x then Return (index x i) - else Fail Failure - -let slice_update_usize (a : Type0) (x : slice a) (i : usize) (nx : a) : result (slice a) = - if i < length x then Return (list_update x i nx) - else Fail Failure - -(*** Subslices *) - -let array_to_slice (a : Type0) (n : usize) (x : array a n) : result (slice a) = Return x -let array_from_slice (a : Type0) (n : usize) (x : array a n) (s : slice a) : result (array a n) = - if length s = n then Return s - else Fail Failure - -// TODO: finish the definitions below (there lacks [List.drop] and [List.take] in the standard library *) -let array_subslice (a : Type0) (n : usize) (x : array a n) (r : core_ops_range_Range usize) : result (slice a) = - admit() - -let array_update_subslice (a : Type0) (n : usize) (x : array a n) (r : core_ops_range_Range usize) (ns : slice a) : result (array a n) = - admit() - -let array_repeat (a : Type0) (n : usize) (x : a) : array a n = - admit() - -let slice_subslice (a : Type0) (x : slice a) (r : core_ops_range_Range usize) : result (slice a) = - admit() - -let slice_update_subslice (a : Type0) (x : slice a) (r : core_ops_range_Range usize) (ns : slice a) : result (slice a) = - admit() - -(*** Vector *) -type alloc_vec_Vec (a : Type0) = v:list a{length v <= usize_max} - -let alloc_vec_Vec_new (a : Type0) : alloc_vec_Vec a = assert_norm(length #a [] == 0); [] -let alloc_vec_Vec_len (a : Type0) (v : alloc_vec_Vec a) : usize = length v - -// Helper -let alloc_vec_Vec_index_usize (#a : Type0) (v : alloc_vec_Vec a) (i : usize) : result a = - if i < length v then Return (index v i) else Fail Failure -// Helper -let alloc_vec_Vec_update_usize (#a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : result (alloc_vec_Vec a) = - if i < length v then Return (list_update v i x) else Fail Failure - -// The **forward** function shouldn't be used -let alloc_vec_Vec_push_fwd (a : Type0) (v : alloc_vec_Vec a) (x : a) : unit = () -let alloc_vec_Vec_push (a : Type0) (v : alloc_vec_Vec a) (x : a) : - Pure (result (alloc_vec_Vec a)) - (requires True) - (ensures (fun res -> - match res with - | Fail e -> e == Failure - | Return v' -> length v' = length v + 1)) = - if length v < usize_max then begin - (**) assert_norm(length [x] == 1); - (**) append_length v [x]; - (**) assert(length (append v [x]) = length v + 1); - Return (append v [x]) - end - else Fail Failure - -// The **forward** function shouldn't be used -let alloc_vec_Vec_insert_fwd (a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : result unit = - if i < length v then Return () else Fail Failure -let alloc_vec_Vec_insert (a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : result (alloc_vec_Vec a) = - if i < length v then Return (list_update v i x) else Fail Failure - -// Trait declaration: [core::slice::index::private_slice_index::Sealed] -type core_slice_index_private_slice_index_Sealed (self : Type0) = unit - -// Trait declaration: [core::slice::index::SliceIndex] -noeq type core_slice_index_SliceIndex (self t : Type0) = { - sealedInst : core_slice_index_private_slice_index_Sealed self; - output : Type0; - get : self → t → result (option output); - get_mut : self → t → result (option output); - get_mut_back : self → t → option output → result t; - get_unchecked : self → const_raw_ptr t → result (const_raw_ptr output); - get_unchecked_mut : self → mut_raw_ptr t → result (mut_raw_ptr output); - index : self → t → result output; - index_mut : self → t → result output; - index_mut_back : self → t → output → result t; -} - -// [core::slice::index::[T]::index]: forward function -let core_slice_index_Slice_index - (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) - (s : slice t) (i : idx) : result inst.output = - let* x = inst.get i s in - match x with - | None -> Fail Failure - | Some x -> Return x - -// [core::slice::index::Range:::get]: forward function -let core_slice_index_RangeUsize_get (t : Type0) (i : core_ops_range_Range usize) (s : slice t) : - result (option (slice t)) = - admit () // TODO - -// [core::slice::index::Range::get_mut]: forward function -let core_slice_index_RangeUsize_get_mut - (t : Type0) : core_ops_range_Range usize → slice t → result (option (slice t)) = - admit () // TODO - -// [core::slice::index::Range::get_mut]: backward function 0 -let core_slice_index_RangeUsize_get_mut_back - (t : Type0) : - core_ops_range_Range usize → slice t → option (slice t) → result (slice t) = - admit () // TODO - -// [core::slice::index::Range::get_unchecked]: forward function -let core_slice_index_RangeUsize_get_unchecked - (t : Type0) : - core_ops_range_Range usize → const_raw_ptr (slice t) → result (const_raw_ptr (slice t)) = - // Don't know what the model should be - for now we always fail to make - // sure code which uses it fails - fun _ _ -> Fail Failure - -// [core::slice::index::Range::get_unchecked_mut]: forward function -let core_slice_index_RangeUsize_get_unchecked_mut - (t : Type0) : - core_ops_range_Range usize → mut_raw_ptr (slice t) → result (mut_raw_ptr (slice t)) = - // Don't know what the model should be - for now we always fail to make - // sure code which uses it fails - fun _ _ -> Fail Failure - -// [core::slice::index::Range::index]: forward function -let core_slice_index_RangeUsize_index - (t : Type0) : core_ops_range_Range usize → slice t → result (slice t) = - admit () // TODO - -// [core::slice::index::Range::index_mut]: forward function -let core_slice_index_RangeUsize_index_mut - (t : Type0) : core_ops_range_Range usize → slice t → result (slice t) = - admit () // TODO - -// [core::slice::index::Range::index_mut]: backward function 0 -let core_slice_index_RangeUsize_index_mut_back - (t : Type0) : core_ops_range_Range usize → slice t → slice t → result (slice t) = - admit () // TODO - -// [core::slice::index::[T]::index_mut]: forward function -let core_slice_index_Slice_index_mut - (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) : - slice t → idx → result inst.output = - admit () // - -// [core::slice::index::[T]::index_mut]: backward function 0 -let core_slice_index_Slice_index_mut_back - (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) : - slice t → idx → inst.output → result (slice t) = - admit () // TODO - -// [core::array::[T; N]::index]: forward function -let core_array_Array_index - (t idx : Type0) (n : usize) (inst : core_ops_index_Index (slice t) idx) - (a : array t n) (i : idx) : result inst.output = - admit () // TODO - -// [core::array::[T; N]::index_mut]: forward function -let core_array_Array_index_mut - (t idx : Type0) (n : usize) (inst : core_ops_index_IndexMut (slice t) idx) - (a : array t n) (i : idx) : result inst.indexInst.output = - admit () // TODO - -// [core::array::[T; N]::index_mut]: backward function 0 -let core_array_Array_index_mut_back - (t idx : Type0) (n : usize) (inst : core_ops_index_IndexMut (slice t) idx) - (a : array t n) (i : idx) (x : inst.indexInst.output) : result (array t n) = - admit () // TODO - -// Trait implementation: [core::slice::index::private_slice_index::Range] -let core_slice_index_private_slice_index_SealedRangeUsizeInst - : core_slice_index_private_slice_index_Sealed (core_ops_range_Range usize) = () - -// Trait implementation: [core::slice::index::Range] -let core_slice_index_SliceIndexRangeUsizeSliceTInst (t : Type0) : - core_slice_index_SliceIndex (core_ops_range_Range usize) (slice t) = { - sealedInst = core_slice_index_private_slice_index_SealedRangeUsizeInst; - output = slice t; - get = core_slice_index_RangeUsize_get t; - get_mut = core_slice_index_RangeUsize_get_mut t; - get_mut_back = core_slice_index_RangeUsize_get_mut_back t; - get_unchecked = core_slice_index_RangeUsize_get_unchecked t; - get_unchecked_mut = core_slice_index_RangeUsize_get_unchecked_mut t; - index = core_slice_index_RangeUsize_index t; - index_mut = core_slice_index_RangeUsize_index_mut t; - index_mut_back = core_slice_index_RangeUsize_index_mut_back t; -} - -// Trait implementation: [core::slice::index::[T]] -let core_ops_index_IndexSliceTIInst (t idx : Type0) - (inst : core_slice_index_SliceIndex idx (slice t)) : - core_ops_index_Index (slice t) idx = { - output = inst.output; - index = core_slice_index_Slice_index t idx inst; -} - -// Trait implementation: [core::slice::index::[T]] -let core_ops_index_IndexMutSliceTIInst (t idx : Type0) - (inst : core_slice_index_SliceIndex idx (slice t)) : - core_ops_index_IndexMut (slice t) idx = { - indexInst = core_ops_index_IndexSliceTIInst t idx inst; - index_mut = core_slice_index_Slice_index_mut t idx inst; - index_mut_back = core_slice_index_Slice_index_mut_back t idx inst; -} - -// Trait implementation: [core::array::[T; N]] -let core_ops_index_IndexArrayInst (t idx : Type0) (n : usize) - (inst : core_ops_index_Index (slice t) idx) : - core_ops_index_Index (array t n) idx = { - output = inst.output; - index = core_array_Array_index t idx n inst; -} - -// Trait implementation: [core::array::[T; N]] -let core_ops_index_IndexMutArrayIInst (t idx : Type0) (n : usize) - (inst : core_ops_index_IndexMut (slice t) idx) : - core_ops_index_IndexMut (array t n) idx = { - indexInst = core_ops_index_IndexArrayInst t idx n inst.indexInst; - index_mut = core_array_Array_index_mut t idx n inst; - index_mut_back = core_array_Array_index_mut_back t idx n inst; -} - -// [core::slice::index::usize::get]: forward function -let core_slice_index_usize_get - (t : Type0) : usize → slice t → result (option t) = - admit () // TODO - -// [core::slice::index::usize::get_mut]: forward function -let core_slice_index_usize_get_mut - (t : Type0) : usize → slice t → result (option t) = - admit () // TODO - -// [core::slice::index::usize::get_mut]: backward function 0 -let core_slice_index_usize_get_mut_back - (t : Type0) : usize → slice t → option t → result (slice t) = - admit () // TODO - -// [core::slice::index::usize::get_unchecked]: forward function -let core_slice_index_usize_get_unchecked - (t : Type0) : usize → const_raw_ptr (slice t) → result (const_raw_ptr t) = - admit () // TODO - -// [core::slice::index::usize::get_unchecked_mut]: forward function -let core_slice_index_usize_get_unchecked_mut - (t : Type0) : usize → mut_raw_ptr (slice t) → result (mut_raw_ptr t) = - admit () // TODO - -// [core::slice::index::usize::index]: forward function -let core_slice_index_usize_index (t : Type0) : usize → slice t → result t = - admit () // TODO - -// [core::slice::index::usize::index_mut]: forward function -let core_slice_index_usize_index_mut (t : Type0) : usize → slice t → result t = - admit () // TODO - -// [core::slice::index::usize::index_mut]: backward function 0 -let core_slice_index_usize_index_mut_back - (t : Type0) : usize → slice t → t → result (slice t) = - admit () // TODO - -// Trait implementation: [core::slice::index::private_slice_index::usize] -let core_slice_index_private_slice_index_SealedUsizeInst - : core_slice_index_private_slice_index_Sealed usize = () - -// Trait implementation: [core::slice::index::usize] -let core_slice_index_SliceIndexUsizeSliceTInst (t : Type0) : - core_slice_index_SliceIndex usize (slice t) = { - sealedInst = core_slice_index_private_slice_index_SealedUsizeInst; - output = t; - get = core_slice_index_usize_get t; - get_mut = core_slice_index_usize_get_mut t; - get_mut_back = core_slice_index_usize_get_mut_back t; - get_unchecked = core_slice_index_usize_get_unchecked t; - get_unchecked_mut = core_slice_index_usize_get_unchecked_mut t; - index = core_slice_index_usize_index t; - index_mut = core_slice_index_usize_index_mut t; - index_mut_back = core_slice_index_usize_index_mut_back t; -} - -// [alloc::vec::Vec::index]: forward function -let alloc_vec_Vec_index (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) - (self : alloc_vec_Vec t) (i : idx) : result inst.output = - admit () // TODO - -// [alloc::vec::Vec::index_mut]: forward function -let alloc_vec_Vec_index_mut (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) - (self : alloc_vec_Vec t) (i : idx) : result inst.output = - admit () // TODO - -// [alloc::vec::Vec::index_mut]: backward function 0 -let alloc_vec_Vec_index_mut_back - (t idx : Type0) (inst : core_slice_index_SliceIndex idx (slice t)) - (self : alloc_vec_Vec t) (i : idx) (x : inst.output) : result (alloc_vec_Vec t) = - admit () // TODO - -// Trait implementation: [alloc::vec::Vec] -let alloc_vec_Vec_coreopsindexIndexInst (t idx : Type0) - (inst : core_slice_index_SliceIndex idx (slice t)) : - core_ops_index_Index (alloc_vec_Vec t) idx = { - output = inst.output; - index = alloc_vec_Vec_index t idx inst; -} - -// Trait implementation: [alloc::vec::Vec] -let alloc_vec_Vec_coreopsindexIndexMutInst (t idx : Type0) - (inst : core_slice_index_SliceIndex idx (slice t)) : - core_ops_index_IndexMut (alloc_vec_Vec t) idx = { - indexInst = alloc_vec_Vec_coreopsindexIndexInst t idx inst; - index_mut = alloc_vec_Vec_index_mut t idx inst; - index_mut_back = alloc_vec_Vec_index_mut_back t idx inst; -} - -(*** Theorems *) - -let alloc_vec_Vec_index_eq (#a : Type0) (v : alloc_vec_Vec a) (i : usize) : - Lemma ( - alloc_vec_Vec_index a usize (core_slice_index_SliceIndexUsizeSliceTInst a) v i == - alloc_vec_Vec_index_usize v i) - [SMTPat (alloc_vec_Vec_index a usize (core_slice_index_SliceIndexUsizeSliceTInst a) v i)] - = - admit() - -let alloc_vec_Vec_index_mut_eq (#a : Type0) (v : alloc_vec_Vec a) (i : usize) : - Lemma ( - alloc_vec_Vec_index_mut a usize (core_slice_index_SliceIndexUsizeSliceTInst a) v i == - alloc_vec_Vec_index_usize v i) - [SMTPat (alloc_vec_Vec_index_mut a usize (core_slice_index_SliceIndexUsizeSliceTInst a) v i)] - = - admit() - -let alloc_vec_Vec_index_mut_back_eq (#a : Type0) (v : alloc_vec_Vec a) (i : usize) (x : a) : - Lemma ( - alloc_vec_Vec_index_mut_back a usize (core_slice_index_SliceIndexUsizeSliceTInst a) v i x == - alloc_vec_Vec_update_usize v i x) - [SMTPat (alloc_vec_Vec_index_mut_back a usize (core_slice_index_SliceIndexUsizeSliceTInst a) v i x)] - = - admit() |