Fix double mem free in param str

Author: boriel

src/api/check.py

@@ -420,7 +420,7 @@ def is_block_accessed(block):
 def is_temporary_value(node) -> bool:
     """ Returns if the AST node value is a variable or a temporary copy in the heap.
     """
-    return node.token not in ('STRING', 'VAR') and node.t[0] not in ('_', '#')
+    return node.token not in ('PARAMDECL', 'STRING', 'VAR') and node.t[0] not in ('_', '#')
 
 
 def common_type(a, b):

tests/api/test_check.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+import unittest
+
+from src.api import check
+from src import symbols
+
+
+class TestCheck(unittest.TestCase):
+    """ Tests api.check
+    """
+    def test_is_temporary_value_const_string(self):
+        node = symbols.STRING("Hello world", 1)
+        self.assertFalse(check.is_temporary_value(node))
+
+    def test_is_temporary_value_var(self):
+        node = symbols.VAR("a", 1)
+        self.assertFalse(check.is_temporary_value(node))
+
+    def test_is_temporary_value_param(self):
+        node = symbols.PARAMDECL("a", 1)
+        self.assertFalse(check.is_temporary_value(node))
+
+    def test_is_temporary_value_expr(self):
+        child = symbols.VAR("a", 1)
+        node = symbols.BINARY('PLUS', child, child, 1)
+        self.assertTrue(check.is_temporary_value(node))