commit 98865d1554c671a2ec07729d21cef5ef465c7a958b59c65759a78bbb32e364e2
Author: Steve Kowalik <steven.kowalik@suse.com>
Date:   Mon Feb 28 05:29:13 2022 +0000

    Accepting request 957922 from home:bnavigator:branches:devel:languages:python
    
    required by update to tvm 0.8
    
    OBS-URL: https://build.opensuse.org/request/show/957922
    OBS-URL: https://build.opensuse.org/package/show/devel:languages:python/python-synr?expand=0&rev=1

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..9b03811
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,23 @@
+## Default LFS
+*.7z filter=lfs diff=lfs merge=lfs -text
+*.bsp filter=lfs diff=lfs merge=lfs -text
+*.bz2 filter=lfs diff=lfs merge=lfs -text
+*.gem filter=lfs diff=lfs merge=lfs -text
+*.gz filter=lfs diff=lfs merge=lfs -text
+*.jar filter=lfs diff=lfs merge=lfs -text
+*.lz filter=lfs diff=lfs merge=lfs -text
+*.lzma filter=lfs diff=lfs merge=lfs -text
+*.obscpio filter=lfs diff=lfs merge=lfs -text
+*.oxt filter=lfs diff=lfs merge=lfs -text
+*.pdf filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text
+*.rpm filter=lfs diff=lfs merge=lfs -text
+*.tbz filter=lfs diff=lfs merge=lfs -text
+*.tbz2 filter=lfs diff=lfs merge=lfs -text
+*.tgz filter=lfs diff=lfs merge=lfs -text
+*.ttf filter=lfs diff=lfs merge=lfs -text
+*.txz filter=lfs diff=lfs merge=lfs -text
+*.whl filter=lfs diff=lfs merge=lfs -text
+*.xz filter=lfs diff=lfs merge=lfs -text
+*.zip filter=lfs diff=lfs merge=lfs -text
+*.zst filter=lfs diff=lfs merge=lfs -text
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..57affb6
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+.osc
diff --git a/python-synr.changes b/python-synr.changes
new file mode 100644
index 0000000..94d2325
--- /dev/null
+++ b/python-synr.changes
@@ -0,0 +1,5 @@
+-------------------------------------------------------------------
+Mon Feb 28 00:28:12 UTC 2022 - Ben Greiner <code@bnavigator.de>
+
+- Initial specfile for v0.6
+- Required by tvm 0.8 
diff --git a/python-synr.spec b/python-synr.spec
new file mode 100644
index 0000000..915ed22
--- /dev/null
+++ b/python-synr.spec
@@ -0,0 +1,62 @@
+#
+# spec file for package python-synr
+#
+# Copyright (c) 2022 SUSE LLC
+#
+# All modifications and additions to the file contributed by third parties
+# remain the property of their copyright owners, unless otherwise agreed
+# upon. The license for this file, and modifications and additions to the
+# file, is the same license as for the pristine package itself (unless the
+# license for the pristine package is not an Open Source License, in which
+# case the license is the MIT License). An "Open Source License" is a
+# license that conforms to the Open Source Definition (Version 1.9)
+# published by the Open Source Initiative.
+
+# Please submit bugfixes or comments via https://bugs.opensuse.org/
+#
+
+
+%{?!python_module:%define python_module() python3-%{**}}
+%define skip_python2 1
+Name:           python-synr
+Version:        0.6.0
+Release:        0
+Summary:        A consistent AST for Python
+License:        Apache-2.0
+URL:            https://synr.readthedocs.io
+Source0:        https://files.pythonhosted.org/packages/source/s/synr/synr-%{version}.tar.gz
+Source1:        https://github.com/octoml/synr/raw/v%{version}/tests/test_synr.py
+BuildRequires:  python-rpm-macros
+BuildRequires:  %{python_module setuptools}
+BuildRequires:  %{python_module attrs}
+BuildRequires:  %{python_module pytest}
+BuildRequires:  fdupes
+Requires:       python-attrs
+BuildArch:      noarch
+%python_subpackages
+
+%description
+A library for a stable Abstract Syntax Tree for Python.
+
+%prep
+%setup -q -n synr-%{version}
+mkdir tests
+cp %{SOURCE1} tests
+
+%build
+%python_build
+
+%install
+%python_install
+%python_expand %fdupes %{buildroot}%{$python_sitelib}
+
+%check
+%pytest
+
+%files %{python_files}
+%doc README.md
+%license LICENSE
+%{python_sitelib}/synr
+%{python_sitelib}/synr-%{version}*-info
+
+%changelog
diff --git a/synr-0.6.0.tar.gz b/synr-0.6.0.tar.gz
new file mode 100644
index 0000000..4146206
--- /dev/null
+++ b/synr-0.6.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0b4e16b10c3988e1981e3372153a31956f74d86752eaaa55e8c4e7b7fe591e4e
+size 17299
diff --git a/test_synr.py b/test_synr.py
new file mode 100644
index 0000000..c4641c4
--- /dev/null
+++ b/test_synr.py
@@ -0,0 +1,729 @@
+import synr
+from synr import __version__
+from typing import Any
+import inspect
+import sys
+
+
+def test_version():
+    assert __version__ == "0.6.0"
+
+
+def to_ast(program: Any) -> Any:
+    diag_ctx = synr.PrinterDiagnosticContext()
+    transformer = None
+    res = synr.to_ast(program, diag_ctx, transformer)
+    if isinstance(res, str):
+        raise (RuntimeError(res))
+    return res
+
+
+def assert_one_fn(module, name, no_params=None):
+    func = module.funcs.get(name)
+    assert func, "the function `%s` was not found" % name
+    if no_params:
+        assert len(func.params) == no_params, "the parameters do not match"
+    assert isinstance(func.body, synr.ast.Block)
+    return func
+
+
+def identity(x):
+    return x
+
+
+def test_id_function():
+    module = to_ast(identity)
+    ast_fn = assert_one_fn(module, "identity", no_params=1)
+    return_var = ast_fn.body.stmts[-1].value
+    assert isinstance(return_var, synr.ast.Var)
+    assert return_var.id.name == "x"
+
+
+class ExampleClass:
+    def func():
+        return 3
+
+
+def test_class():
+    module = to_ast(ExampleClass)
+    cls = module.funcs.get("ExampleClass")
+    assert cls, "ExampleClass not found"
+    assert isinstance(cls, synr.ast.Class), "ExampleClass was not parsed as a Class"
+    assert len(cls.funcs) == 1, "func not found"
+    fn = cls.funcs["func"]
+    assert isinstance(fn, synr.ast.Function), "func not found"
+    assert fn.name == "func", "func not found"
+    return_var = fn.body.stmts[-1].value
+    assert isinstance(return_var, synr.ast.Constant)
+    assert return_var.value == 3
+
+
+def func_for():
+    for x in range(3):
+        return x
+
+    for x, y in grid(5, 6):
+        return x
+
+
+def test_for():
+    module = to_ast(func_for)
+    fn = assert_one_fn(module, "func_for", no_params=0)
+
+    fr = fn.body.stmts[0]
+    assert isinstance(fr, synr.ast.For), "Did not find for loop"
+    assert fr.lhs[0].id.name == "x", "For lhs is incorrect"
+    assert isinstance(fr.rhs, synr.ast.Call)
+    assert fr.rhs.func_name.id.name == "range"
+    assert fr.rhs.params[0].value == 3
+    assert isinstance(fr.body.stmts[0], synr.ast.Return)
+    assert fr.body.stmts[0].value.id.name == "x"
+
+    fr = fn.body.stmts[1]
+    assert isinstance(fr, synr.ast.For), "Did not find for loop"
+    assert len(fr.lhs) == 2
+    assert fr.lhs[0].id.name == "x", "For lhs is incorrect"
+    assert fr.lhs[1].id.name == "y", "For lhs is incorrect"
+    assert isinstance(fr.rhs, synr.ast.Call)
+    assert fr.rhs.func_name.id.name == "grid"
+    assert fr.rhs.params[0].value == 5
+    assert fr.rhs.params[1].value == 6
+    assert isinstance(fr.body.stmts[0], synr.ast.Return)
+    assert fr.body.stmts[0].value.id.name == "x"
+
+
+def func_while():
+    while x < 10:
+        return x
+
+
+def test_while():
+    module = to_ast(func_while)
+    fn = assert_one_fn(module, "func_while", no_params=0)
+
+    while_stmt = fn.body.stmts[0]
+    assert isinstance(while_stmt, synr.ast.While)
+    assert isinstance(while_stmt.body.stmts[0], synr.ast.Return)
+    assert while_stmt.body.stmts[0].value.id.name == "x"
+    cond = while_stmt.condition
+    assert isinstance(cond, synr.ast.Call)
+    assert cond.func_name.name == synr.ast.BuiltinOp.LT
+    assert cond.params[0].id.name == "x"
+    assert cond.params[1].value == 10
+
+
+def func_with():
+    with x as y:
+        return x
+
+    with block() as [x, y]:
+        return x
+
+    with block() as ():
+        return True
+
+    with block():
+        return True
+
+
+def test_with():
+    module = to_ast(func_with)
+    fn = assert_one_fn(module, "func_with", no_params=0)
+    wth = fn.body.stmts[0]
+    assert isinstance(
+        wth, synr.ast.With
+    ), "Did not find With statement, found %s" % type(wth)
+    assert wth.rhs.id.name == "x"
+    assert wth.lhs[0].id.name == "y"
+    assert isinstance(wth.body.stmts[0], synr.ast.Return)
+    assert wth.body.stmts[0].value.id.name == "x"
+
+    wth = fn.body.stmts[1]
+    assert isinstance(
+        wth, synr.ast.With
+    ), "Did not find With statement, found %s" % type(wth)
+    assert isinstance(wth.rhs, synr.ast.Call)
+    assert wth.rhs.func_name.id.name == "block"
+    assert len(wth.lhs) == 2
+    assert wth.lhs[0].id.name == "x"
+    assert wth.lhs[1].id.name == "y"
+    assert isinstance(wth.body.stmts[0], synr.ast.Return)
+    assert wth.body.stmts[0].value.id.name == "x"
+
+    wth = fn.body.stmts[2]
+    assert isinstance(
+        wth, synr.ast.With
+    ), "Did not find With statement, found %s" % type(wth)
+    assert isinstance(wth.rhs, synr.ast.Call)
+    assert wth.rhs.func_name.id.name == "block"
+    assert len(wth.lhs) == 0
+
+
+def func_block():
+    y = x
+    z = y
+    return z
+
+
+def test_block():
+    module = to_ast(func_block)
+    fn = assert_one_fn(module, "func_block", no_params=0)
+    block = fn.body
+    assert isinstance(block, synr.ast.Block)
+    assert len(block.stmts) == 3
+    assert isinstance(block.stmts[0], synr.ast.Assign)
+    assert isinstance(block.stmts[1], synr.ast.Assign)
+    assert isinstance(block.stmts[2], synr.ast.Return)
+
+
+def func_assign():
+    y = 2
+    x, y = 2, 2
+    (x, y) = 2, 2
+    [x, y] = 2, 2
+
+
+def test_assign():
+    module = to_ast(func_assign)
+    fn = assert_one_fn(module, "func_assign", no_params=0)
+    assign = fn.body.stmts[0]
+    assert isinstance(assign, synr.ast.Assign)
+    assert isinstance(assign.lhs[0], synr.ast.Var)
+    assert assign.lhs[0].id.name == "y"
+    assert isinstance(assign.rhs, synr.ast.Constant)
+    assert assign.rhs.value == 2
+
+    def _check_multi_assign(assign):
+        assert isinstance(assign, synr.ast.Assign)
+
+        assert len(assign.lhs) == 2
+        assert isinstance(assign.lhs[0], synr.ast.Var)
+        assert assign.lhs[0].id.name == "x"
+        assert isinstance(assign.lhs[1], synr.ast.Var)
+        assert assign.lhs[1].id.name == "y"
+
+    _check_multi_assign(fn.body.stmts[1])
+    _check_multi_assign(fn.body.stmts[2])
+    _check_multi_assign(fn.body.stmts[3])
+
+
+def func_var():
+    return x.y.z
+
+
+def test_var():
+    module = to_ast(func_var)
+    fn = assert_one_fn(module, "func_var", no_params=0)
+    ret = fn.body.stmts[0]
+    assert ret.value.field.name == "z"
+    assert ret.value.object.field.name == "y"
+    assert ret.value.object.object.id.name == "x"
+
+
+def func_binop():
+    x = 1 + 2
+    x = 1 - 2
+    x = 1 * 2
+    x = 1 / 2
+    x = 1 // 2
+    x = 1 % 2
+    x = 1 == 2
+    x = 1 != 2
+    x = 1 >= 2
+    x = 1 <= 2
+    x = 1 < 2
+    x = 1 > 2
+    x = not True
+    x = True and False
+    x = True or False
+    x += 1
+    x -= 1
+    x /= 1
+    x *= 1
+    x //= 1
+    x %= 1
+    x = (1 + 3) / (4 % 2)
+    x = -1
+    x = +1
+    x = ~1
+
+
+def test_binop():
+    module = to_ast(func_binop)
+    fn = assert_one_fn(module, "func_binop", no_params=0)
+    stmts = fn.body.stmts
+
+    def verify(stmt, op, vals):
+        assert isinstance(stmt, synr.ast.Call)
+        assert stmt.func_name.name == op, f"Expect {op.name}, got {stmt.func_name}"
+        assert len(vals) == len(stmt.params)
+        for i in range(len(vals)):
+            assert stmt.params[i].value == vals[i]
+
+    verify(stmts[0].rhs, synr.ast.BuiltinOp.Add, [1, 2])
+    verify(stmts[1].rhs, synr.ast.BuiltinOp.Sub, [1, 2])
+    verify(stmts[2].rhs, synr.ast.BuiltinOp.Mul, [1, 2])
+    verify(stmts[3].rhs, synr.ast.BuiltinOp.Div, [1, 2])
+    verify(stmts[4].rhs, synr.ast.BuiltinOp.FloorDiv, [1, 2])
+    verify(stmts[5].rhs, synr.ast.BuiltinOp.Mod, [1, 2])
+    verify(stmts[6].rhs, synr.ast.BuiltinOp.Eq, [1, 2])
+    verify(stmts[7].rhs, synr.ast.BuiltinOp.NotEq, [1, 2])
+    verify(stmts[8].rhs, synr.ast.BuiltinOp.GE, [1, 2])
+    verify(stmts[9].rhs, synr.ast.BuiltinOp.LE, [1, 2])
+    verify(stmts[10].rhs, synr.ast.BuiltinOp.LT, [1, 2])
+    verify(stmts[11].rhs, synr.ast.BuiltinOp.GT, [1, 2])
+    verify(stmts[12].rhs, synr.ast.BuiltinOp.Not, [True])
+    verify(stmts[13].rhs, synr.ast.BuiltinOp.And, [True, False])
+    verify(stmts[14].rhs, synr.ast.BuiltinOp.Or, [True, False])
+
+    def verify_assign(stmt, op, vals):
+        assert isinstance(stmt.rhs, synr.ast.Call)
+        assert stmt.rhs.func_name.name == op, f"Expect {op.name}, got {stmt.id.name}"
+        assert len(vals) + 1 == len(stmt.rhs.params)
+        assert stmt.lhs[0].id.name == stmt.rhs.params[0].id.name
+        for i in range(len(vals)):
+            assert stmt.rhs.params[i + 1].value == vals[i]
+
+    verify_assign(stmts[15], synr.ast.BuiltinOp.Add, [1])
+    verify_assign(stmts[16], synr.ast.BuiltinOp.Sub, [1])
+    verify_assign(stmts[17], synr.ast.BuiltinOp.Div, [1])
+    verify_assign(stmts[18], synr.ast.BuiltinOp.Mul, [1])
+    verify_assign(stmts[19], synr.ast.BuiltinOp.FloorDiv, [1])
+    verify_assign(stmts[20], synr.ast.BuiltinOp.Mod, [1])
+    verify(stmts[22].rhs, synr.ast.BuiltinOp.USub, [1])
+    verify(stmts[23].rhs, synr.ast.BuiltinOp.UAdd, [1])
+    verify(stmts[24].rhs, synr.ast.BuiltinOp.Invert, [1])
+
+
+def func_if():
+    if 1 and 2 and 3 or 4:
+        return 1
+    elif 1:
+        return 2
+    else:
+        return 3
+
+
+def test_if():
+    module = to_ast(func_if)
+    fn = assert_one_fn(module, "func_if", no_params=0)
+
+    if_stmt = fn.body.stmts[0]
+    assert isinstance(if_stmt, synr.ast.If)
+    assert isinstance(if_stmt.true.stmts[0], synr.ast.Return)
+    assert if_stmt.true.stmts[0].value.value == 1
+    cond = if_stmt.condition
+    assert isinstance(cond, synr.ast.Call)
+    assert cond.func_name.name == synr.ast.BuiltinOp.Or
+    assert cond.params[1].value == 4
+    elif_stmt = if_stmt.false.stmts[0]
+    assert isinstance(elif_stmt.true.stmts[0], synr.ast.Return)
+    assert elif_stmt.true.stmts[0].value.value == 2
+    assert elif_stmt.condition.value == 1
+    assert isinstance(elif_stmt.false.stmts[0], synr.ast.Return)
+    assert elif_stmt.false.stmts[0].value.value == 3
+
+
+def func_subscript():
+    z = x[1:2, y]
+    z = x[1.0:3.0:2]
+    x[1:2] = 3
+    z = x[y, z]
+    return x[:1]
+
+
+def test_subscript():
+    module = to_ast(func_subscript)
+    fn = assert_one_fn(module, "func_subscript", no_params=0)
+
+    sub = fn.body.stmts[0].rhs
+    assert isinstance(sub, synr.ast.Call)
+    assert sub.func_name.name == synr.ast.BuiltinOp.Subscript
+    assert sub.params[0].id.name == "x"
+    assert sub.params[1].values[0].start.value == 1
+    assert sub.params[1].values[0].step.value == 1
+    assert sub.params[1].values[0].end.value == 2
+    assert sub.params[1].values[1].id.name == "y"
+
+    sub2 = fn.body.stmts[1].rhs
+    assert sub2.params[1].values[0].step.value == 2
+
+    sub3 = fn.body.stmts[2]
+    assert isinstance(sub3, synr.ast.UnassignedCall)
+    assert isinstance(sub3.call, synr.ast.Call)
+    assert sub3.call.func_name.name == synr.ast.BuiltinOp.SubscriptAssign
+    assert sub3.call.params[0].id.name == "x"
+    assert isinstance(sub3.call.params[1], synr.ast.Tuple)
+    assert isinstance(sub3.call.params[1].values[0], synr.ast.Slice)
+    assert sub3.call.params[1].values[0].start.value == 1
+    assert sub3.call.params[1].values[0].end.value == 2
+    assert sub3.call.params[2].value == 3
+
+    sub4 = fn.body.stmts[3].rhs
+    assert sub4.params[1].values[0].id.name == "y"
+    assert sub4.params[1].values[1].id.name == "z"
+
+
+def func_literals():
+    x = 1
+    x = 2.0
+    x = (1, 2.0)
+
+
+def test_literals():
+    module = to_ast(func_literals)
+    fn = assert_one_fn(module, "func_literals", no_params=0)
+
+    assert fn.body.stmts[0].rhs.value == 1
+    assert isinstance(fn.body.stmts[0].rhs.value, int)
+
+    assert fn.body.stmts[1].rhs.value == 2.0
+    assert isinstance(fn.body.stmts[1].rhs.value, float)
+
+    assert fn.body.stmts[2].rhs.values[0].value == 1
+    assert fn.body.stmts[2].rhs.values[1].value == 2.0
+    assert isinstance(fn.body.stmts[2].rhs, synr.ast.Tuple)
+
+
+class X:
+    pass
+
+
+class Y:
+    pass
+
+
+def func_type(x: X) -> Y:
+    x: test.X = 1
+    x: X[Y] = 1
+    x: X[X, Y] = 1
+    x: X[X:Y] = 1
+    x: X[1] = 1
+    x: test.X[Y] = 1
+    x: test.X(Y) = 1
+    x: X + Y = 1
+    x: test.X(Y_TYPE=Y) = 1
+
+
+def test_type():
+    module = to_ast(func_type)
+    fn = assert_one_fn(module, "func_type", no_params=0)
+
+    assert isinstance(fn.ret_type, synr.ast.TypeVar)
+    assert isinstance(fn.params[0].ty, synr.ast.TypeVar), fn.params[0].ty
+    assert fn.params[0].ty.id.name == "X"
+
+    stmts = fn.body.stmts
+    assert stmts[0].ty.object.id.name == "test"
+    assert stmts[0].ty.field.name == "X"
+
+    assert isinstance(stmts[1].ty, synr.ast.TypeApply)
+    assert stmts[1].ty.func_name.id.name == "X"
+    assert stmts[1].ty.params[0].id.name == "Y"
+
+    assert isinstance(stmts[2].ty, synr.ast.TypeApply)
+    assert stmts[2].ty.func_name.id.name == "X"
+    assert stmts[2].ty.params[0].id.name == "X"
+    assert stmts[2].ty.params[1].id.name == "Y"
+
+    assert isinstance(stmts[5].ty, synr.ast.TypeApply)
+    assert isinstance(stmts[5].ty.func_name, synr.ast.TypeAttr)
+    assert stmts[5].ty.func_name.object.id.name == "test"
+    assert stmts[5].ty.func_name.field.name == "X"
+    assert stmts[5].ty.params[0].id.name == "Y"
+
+    assert isinstance(stmts[6].ty, synr.ast.TypeCall)
+    assert isinstance(stmts[6].ty.func_name, synr.ast.TypeAttr)
+    assert stmts[6].ty.func_name.object.id.name == "test"
+    assert stmts[6].ty.func_name.field.name == "X"
+    assert stmts[6].ty.params[0].id.name == "Y"
+
+    assert isinstance(stmts[7].ty, synr.ast.TypeCall)
+    assert stmts[7].ty.func_name == synr.ast.BuiltinOp.Add
+    assert stmts[7].ty.params[0].id.name == "X"
+    assert stmts[7].ty.params[1].id.name == "Y"
+
+    # test TypeCall with kwargs
+    assert isinstance(stmts[8].ty, synr.ast.TypeCall)
+    assert isinstance(stmts[8].ty.func_name, synr.ast.TypeAttr)
+    assert stmts[8].ty.func_name.object.id.name == "test"
+    assert stmts[8].ty.func_name.field.name == "X"
+    for k, v in stmts[8].ty.keyword_params.items():
+        assert k.value == "Y_TYPE"
+        assert v.id.name == "Y"
+
+
+def func_call():
+    test()
+
+
+def test_call():
+    module = to_ast(func_call)
+    fn = assert_one_fn(module, "func_call", no_params=0)
+
+    assert isinstance(fn.body.stmts[0], synr.ast.UnassignedCall)
+    assert fn.body.stmts[0].call.func_name.id.name == "test"
+
+
+def func_constants():
+    x = {"test": 1, "another": 3j}
+    y = ["an", "array", 2.0, None, True, False]
+    z = ("hi",)
+
+
+def test_constants():
+    module = to_ast(func_constants)
+    fn = assert_one_fn(module, "func_constants", no_params=0)
+
+    d = fn.body.stmts[0].rhs
+    assert isinstance(d, synr.ast.DictLiteral)
+    k = [x.value for x in d.keys]
+    v = [x.value for x in d.values]
+    assert dict(zip(k, v)) == {"test": 1, "another": 3j}
+
+    ary = fn.body.stmts[1].rhs
+    assert isinstance(ary, synr.ast.ArrayLiteral)
+    assert [x.value for x in ary.values] == ["an", "array", 2.0, None, True, False]
+
+    t = fn.body.stmts[2].rhs
+    assert isinstance(t, synr.ast.Tuple)
+    assert [x.value for x in t.values] == ["hi"]
+
+
+class ErrorAccumulator:
+    def __init__(self):
+        self.errors = {}
+        self.sources = {}
+
+    def add_source(self, name, source):
+        self.sources[name] = source
+
+    def emit(self, level, message, span):
+        if span.start_line in self.errors:
+            self.errors[span.start_line].append((level, message, span))
+        else:
+            self.errors[span.start_line] = [(level, message, span)]
+
+    def render(self):
+        return self.errors
+
+
+def to_ast_err(program: Any) -> Any:
+    diag_ctx = ErrorAccumulator()
+    transformer = None
+    return synr.to_ast(program, diag_ctx, transformer)
+
+
+def func_err(x=2, *args, **kwargs):
+    x: X
+
+
+def test_err_msg():
+    _, start = inspect.getsourcelines(func_err)
+    errs = to_ast_err(func_err)
+    def_errs = sorted(
+        [(x[1], x[2]) for x in errs[start]], key=lambda x: x[1].start_column
+    )
+
+    def check_err(err, msg, filename, start_line, start_column):
+        assert (
+            err[0] == msg
+        ), f"Error message `{err[0]}` does not match expected message `{msg}`"
+        span = err[1]
+        assert span.filename.endswith(
+            filename
+        ), f"File name `{span.filename}` does not end with `{filename}`"
+        assert (
+            span.start_line == start_line
+        ), f"Starting line of error does not match expected: {span.start_line} vs {start_line}"
+        assert (
+            span.start_column == start_column
+        ), f"Starting column of error does not match expected: {span.start_column} vs {start_column}"
+
+    check_err(
+        def_errs[0],
+        "currently synr does not support defaults",
+        "test_synr.py",
+        start,
+        16,
+    )
+    check_err(
+        def_errs[1],
+        "currently synr does not support varargs",
+        "test_synr.py",
+        start,
+        20,
+    )
+    check_err(
+        def_errs[2],
+        "currently synr does not support kwarg",
+        "test_synr.py",
+        start,
+        28,
+    )
+
+    assert errs[start + 1][0][1] == "Empty type assignment not supported"
+
+
+def test_scoped_func():
+    global_var = 0
+
+    def func():
+        return global_var
+
+    module = to_ast(func)
+    fn = assert_one_fn(module, "func", no_params=0)
+    stmts = fn.body.stmts
+    assert isinstance(stmts[0], synr.ast.Return)
+    assert stmts[0].value.id.name == "global_var"
+    _, start_line = inspect.getsourcelines(func)
+    assert stmts[0].span.start_line == start_line + 1
+    assert stmts[0].span.start_column == 9
+
+
+def test_local_func():
+    def foo():
+        def bar():
+            return 1
+
+        return bar()
+
+    module = to_ast(foo)
+    fn = assert_one_fn(module, "foo")
+    stmts = fn.body.stmts
+    assert isinstance(stmts[0], synr.ast.Function)
+    assert stmts[0].name == "bar"
+    assert len(stmts[0].params) == 0
+    _, start_line = inspect.getsourcelines(foo)
+    assert stmts[0].span.start_line == start_line + 1
+    assert stmts[0].span.start_column == 9
+
+
+def test_decorators():
+    def A(f):
+        return f
+
+    @A
+    def foo():
+        @B
+        @C
+        def bar():
+            return 1
+
+        return bar()
+
+    module = to_ast(foo)
+    fn = assert_one_fn(module, "foo")
+    _, start_line = inspect.getsourcelines(foo)
+    assert fn.span.start_line == start_line + 1
+
+    assert len(fn.decorators) == 1
+    assert isinstance(fn.decorators[0], synr.ast.Var)
+    assert fn.decorators[0].id.name == "A"
+    assert fn.decorators[0].span.start_line == start_line
+
+    # end_lineno was added in Python 3.8 so we check it here
+    if sys.version_info >= (3, 8):
+        assert fn.span.end_line == start_line + 7
+
+    bar = fn.body.stmts[0]
+    assert bar.span.start_line == start_line + 4
+
+    assert len(bar.decorators) == 2
+
+    assert isinstance(bar.decorators[0], synr.ast.Var)
+    assert bar.decorators[0].id.name == "B"
+    assert bar.decorators[0].span.start_line == start_line + 2
+
+    assert isinstance(bar.decorators[1], synr.ast.Var)
+    assert bar.decorators[1].id.name == "C"
+    assert bar.decorators[1].span.start_line == start_line + 3
+
+
+def test_nonlocal():
+    x, y = 1, 2
+
+    def foo():
+        nonlocal x, y
+        return x + y
+
+    module = to_ast(foo)
+    fn = assert_one_fn(module, "foo")
+    nl = fn.body.stmts[0]
+    assert isinstance(nl, synr.ast.Nonlocal)
+    assert len(nl.vars) == 2
+    x, y = nl.vars
+    assert isinstance(x, synr.ast.Var) and x.id.name == "x"
+    assert isinstance(y, synr.ast.Var) and y.id.name == "y"
+
+    _, start_line = inspect.getsourcelines(foo)
+    assert nl.span.start_line == start_line + 1
+    # NOTE: variable spans are a bit hacky so we don't check them here
+
+
+def test_global():
+    def foo():
+        global x, y
+        return x + y
+
+    module = to_ast(foo)
+    fn = assert_one_fn(module, "foo")
+    gl = fn.body.stmts[0]
+    assert isinstance(gl, synr.ast.Global)
+    assert len(gl.vars) == 2
+    x, y = gl.vars
+    assert isinstance(x, synr.ast.Var) and x.id.name == "x"
+    assert isinstance(y, synr.ast.Var) and y.id.name == "y"
+
+    _, start_line = inspect.getsourcelines(foo)
+    assert gl.span.start_line == start_line + 1
+
+
+def test_lambda():
+    def foo():
+        return lambda x, y: x + y
+
+    module = to_ast(foo)
+    fn = assert_one_fn(module, "foo")
+
+    assert isinstance(fn.body.stmts[0], synr.ast.Return)
+    assert isinstance(fn.body.stmts[0].value, synr.ast.Lambda)
+    node = fn.body.stmts[0].value
+    assert len(node.params) == 2
+    assert node.params[0].name == "x"
+    assert node.params[0].ty == None
+    assert node.params[1].name == "y"
+    assert node.params[1].ty == None
+
+    assert isinstance(node.body, synr.ast.Call)
+    assert node.body.func_name.name == synr.ast.BuiltinOp.Add
+    assert node.body.params[0].id.name == "x"
+    assert node.body.params[1].id.name == "y"
+
+    _, start_line = inspect.getsourcelines(foo)
+    assert node.span.start_line == start_line + 1
+
+
+if __name__ == "__main__":
+    test_id_function()
+    test_class()
+    test_for()
+    test_while()
+    test_with()
+    test_block()
+    test_assign()
+    test_var()
+    test_binop()
+    test_if()
+    test_subscript()
+    test_literals()
+    test_type()
+    test_call()
+    test_constants()
+    test_err_msg()
+    test_scoped_func()
+    test_local_func()
+    test_decorators()
+    test_nonlocal()
+    test_global()
+    test_lambda()