py2wasm/compiler.py

@@ -82,6 +82,13 @@ def expression(inp: ourlang.Expression) -> Statements:
 
         raise NotImplementedError(expression, inp.type, inp.operator)
 
+    if isinstance(inp, ourlang.FunctionCall):
+        for arg in inp.arguments:
+            yield from expression(arg)
+
+        yield wasm.Statement('call', '${}'.format(inp.function.name))
+        return
+
     raise NotImplementedError(expression, inp)
 
 def statement_return(inp: ourlang.StatementReturn) -> Statements:

tests/integration/test_simple.py

@@ -225,6 +225,23 @@ def helper(left: i32, right: i32) -> i32:
     assert 7 == result.returned_value
     assert [] == result.log_int32_list
 
+@pytest.mark.integration_test
+@pytest.mark.parametrize('type_', ['i32', 'i64', 'f32', 'f64'])
+def test_call_with_expression(type_):
+    code_py = f"""
+@exported
+def testEntry() -> {type_}:
+    return helper(10 + 20, 3 + 5)
+
+def helper(left: {type_}, right: {type_}) -> {type_}:
+    return left - right
+"""
+
+    result = Suite(code_py, 'test_call').run_code()
+
+    assert 22 == result.returned_value
+    assert TYPE_MAP[type_] == type(result.returned_value)
+
 @pytest.mark.integration_test
 @pytest.mark.skip('Not yet implemented')
 def test_assign():