3 files changed, 127 insertions, 0 deletions
diff --git a/tests/lean/External/Funs.lean b/tests/lean/External/Funs.lean
new file mode 100644
index 00000000..73e45938
--- /dev/null
+++ b/tests/lean/External/Funs.lean
@@ -0,0 +1,88 @@
+-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
+-- [external]: function definitions
+import Base
+import External.Types
+import External.ExternalFuns
+open Primitives
+
+/- [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 : U32) (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 U32
+    let _ ← vec_push_back U32 v (U32.ofInt 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 : U32) (y : U32) (st : State) : Result (State × Unit) :=
+  do
+    let (st0, _) ← custom_swap_fwd U32 x y st
+    Result.ret (st0, ())
+
+/- [external::test_custom_swap] -/
+def test_custom_swap_back
+  (x : U32) (y : U32) (st : State) (st0 : State) :
+  Result (State × (U32 × U32))
+  :=
+  custom_swap_back U32 x y st (U32.ofInt 1 (by intlit)) st0
+
+/- [external::test_swap_non_zero] -/
+def test_swap_non_zero_fwd (x : U32) (st : State) : Result (State × U32) :=
+  do
+    let (st0, _) ← swap_fwd U32 x (U32.ofInt 0 (by intlit)) st
+    let (st1, (x0, _)) ← swap_back U32 x (U32.ofInt 0 (by intlit)) st st0
+    if x0 = (U32.ofInt 0 (by intlit))
+    then Result.fail Error.panic
+    else Result.ret (st1, x0)
+
diff --git a/tests/lean/External/Opaque.lean b/tests/lean/External/Opaque.lean
new file mode 100644
index 00000000..5483c3a9
--- /dev/null
+++ b/tests/lean/External/Opaque.lean
@@ -0,0 +1,28 @@
+-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
+-- [external]: opaque function definitions
+import Base
+import External.Types
+open Primitives
+
+structure OpaqueDefs where
+  
+  /- [core::mem::swap] -/
+  core_mem_swap_fwd (T : Type) : T -> T -> State -> Result (State × Unit)
+  
+  /- [core::mem::swap] -/
+  core_mem_swap_back0
+    (T : Type) : T -> T -> State -> State -> Result (State × T)
+  
+  /- [core::mem::swap] -/
+  core_mem_swap_back1
+    (T : Type) : T -> T -> State -> State -> Result (State × T)
+  
+  /- [core::num::nonzero::NonZeroU32::{14}::new] -/
+  core_num_nonzero_non_zero_u32_new_fwd
+    :
+    U32 -> State -> Result (State × (Option core_num_nonzero_non_zero_u32_t))
+  
+  /- [core::option::Option::{0}::unwrap] -/
+  core_option_option_unwrap_fwd
+    (T : Type) : Option T -> State -> Result (State × T)
+  
diff --git a/tests/lean/External/Types.lean b/tests/lean/External/Types.lean
new file mode 100644
index 00000000..25907da2
--- /dev/null
+++ b/tests/lean/External/Types.lean
@@ -0,0 +1,11 @@
+-- THIS FILE WAS AUTOMATICALLY GENERATED BY AENEAS
+-- [external]: type definitions
+import Base
+open Primitives
+
+/- [core::num::nonzero::NonZeroU32] -/
+axiom core_num_nonzero_non_zero_u32_t : Type
+
+/- The state type used in the state-error monad -/
+axiom State : Type
+