Fix sync function generation

typon/trans/tests/gen_func.py

 def f[T](x: T):
     return x
 
+def g[X](a: X, b: X):
+    return a + b
+
 if __name__ == "__main__":
     #a = 5
     print(f("abc"))
     print(f(6))
+    print(g(6, 8))
+    print(g("abc", "def"))

typon/trans/transpiler/phases/emit_cpp/expr.py

@@ -222,13 +222,17 @@ class ExpressionVisitor(NodeVisitor):
         yield from self.visit_binary_operation(node.ops[0], node.left, node.comparators[0], linenodata(node))
 
     def visit_binary_operation(self, op, left: ast.AST, right: ast.AST, lnd: dict) -> Iterable[str]:
-        yield "(co_await ("
+        if self.generator != CoroutineMode.SYNC:
+            yield "(co_await"
+        yield "("
         yield from self.visit(left)
         yield " "
         yield SYMBOLS[type(op)]
         yield " "
         yield from self.visit(right)
-        yield "))"
+        yield ")"
+        if self.generator != CoroutineMode.SYNC:
+            yield ")"
         return
         raise NotImplementedError()
         # if type(op) == ast.In:

typon/trans/transpiler/phases/emit_cpp/visitors.py

@@ -75,6 +75,7 @@ class NodeVisitor(UniversalVisitor):
                 if em:
                     yield name
                 else:
+                    raise UnresolvedTypeVariableError(node)
                     yield f"$VAR__{name}"
 
                 #raise UnresolvedTypeVariableError(node)