From 051e2a19f3268d272a0acd0425d2107ebea020c5 Mon Sep 17 00:00:00 2001
From: Son Ho
Date: Tue, 7 Mar 2023 13:46:55 +0100
Subject: Reorganize the Lean tests and extract the Polonius tests to Lean

---
 tests/lean/misc-external/External/Funs.lean | 93 +++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 tests/lean/misc-external/External/Funs.lean

(limited to 'tests/lean/misc-external/External/Funs.lean')

diff --git a/tests/lean/misc-external/External/Funs.lean b/tests/lean/misc-external/External/Funs.lean
new file mode 100644
index 00000000..4e1f36a1
--- /dev/null
+++ b/tests/lean/misc-external/External/Funs.lean
@@ -0,0 +1,93 @@
+-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
+-- [external]: function definitions
+import Base.Primitives
+import External.Types
+import External.Opaque
+
+section variable (opaque_defs: OpaqueDefs)
+
+/- [external::swap] -/
+def swap_fwd
+  (T : Type) (x : T) (y : T) (st : State) : Result (State × Unit) :=
+  do
+    let (st0, _) ← opaque_defs.core_mem_swap_fwd T x y st
+    let (st1, _) ← opaque_defs.core_mem_swap_back0 T x y st st0
+    let (st2, _) ← opaque_defs.core_mem_swap_back1 T x y st st1
+    Result.ret (st2, ())
+
+/- [external::swap] -/
+def swap_back
+  (T : Type) (x : T) (y : T) (st : State) (st0 : State) :
+  Result (State × (T × T))
+  :=
+  do
+    let (st1, _) ← opaque_defs.core_mem_swap_fwd T x y st
+    let (st2, x0) ← opaque_defs.core_mem_swap_back0 T x y st st1
+    let (_, y0) ← opaque_defs.core_mem_swap_back1 T x y st st2
+    Result.ret (st0, (x0, y0))
+
+/- [external::test_new_non_zero_u32] -/
+def test_new_non_zero_u32_fwd
+  (x : UInt32) (st : State) :
+  Result (State × core_num_nonzero_non_zero_u32_t)
+  :=
+  do
+    let (st0, opt) ← opaque_defs.core_num_nonzero_non_zero_u32_new_fwd x st
+    opaque_defs.core_option_option_unwrap_fwd core_num_nonzero_non_zero_u32_t
+      opt st0
+
+/- [external::test_vec] -/
+def test_vec_fwd : Result Unit :=
+  do
+    let v := vec_new UInt32
+    let _ ← vec_push_back UInt32 v (UInt32.ofNatCore 0 (by intlit))
+    Result.ret ()
+
+/- Unit test for [external::test_vec] -/
+#assert (test_vec_fwd == .ret ())
+
+/- [external::custom_swap] -/
+def custom_swap_fwd
+  (T : Type) (x : T) (y : T) (st : State) : Result (State × T) :=
+  do
+    let (st0, _) ← opaque_defs.core_mem_swap_fwd T x y st
+    let (st1, x0) ← opaque_defs.core_mem_swap_back0 T x y st st0
+    let (st2, _) ← opaque_defs.core_mem_swap_back1 T x y st st1
+    Result.ret (st2, x0)
+
+/- [external::custom_swap] -/
+def custom_swap_back
+  (T : Type) (x : T) (y : T) (st : State) (ret0 : T) (st0 : State) :
+  Result (State × (T × T))
+  :=
+  do
+    let (st1, _) ← opaque_defs.core_mem_swap_fwd T x y st
+    let (st2, _) ← opaque_defs.core_mem_swap_back0 T x y st st1
+    let (_, y0) ← opaque_defs.core_mem_swap_back1 T x y st st2
+    Result.ret (st0, (ret0, y0))
+
+/- [external::test_custom_swap] -/
+def test_custom_swap_fwd
+  (x : UInt32) (y : UInt32) (st : State) : Result (State × Unit) :=
+  do
+    let (st0, _) ← custom_swap_fwd UInt32 x y st
+    Result.ret (st0, ())
+
+/- [external::test_custom_swap] -/
+def test_custom_swap_back
+  (x : UInt32) (y : UInt32) (st : State) (st0 : State) :
+  Result (State × (UInt32 × UInt32))
+  :=
+  custom_swap_back UInt32 x y st (UInt32.ofNatCore 1 (by intlit)) st0
+
+/- [external::test_swap_non_zero] -/
+def test_swap_non_zero_fwd
+  (x : UInt32) (st : State) : Result (State × UInt32) :=
+  do
+    let (st0, _) ← swap_fwd UInt32 x (UInt32.ofNatCore 0 (by intlit)) st
+    let (st1, (x0, _)) ←
+      swap_back UInt32 x (UInt32.ofNatCore 0 (by intlit)) st st0
+    if h: x0 = (UInt32.ofNatCore 0 (by intlit))
+    then Result.fail Error.panic
+    else Result.ret (st1, x0)
+
-- 
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