parser: Parse integers arithmetic expression

This patch implements the AST creation for arithmetic expressions.

NOTE:

The implementation works only for integer numbers.

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>
Reviewed-by: Carlos Maniero <carlosmaniero@gmail.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/src/ast.c b/src/ast.c
index 7f3af9e..5c94d68 100644
--- a/src/ast.c
+++ b/src/ast.c
@@ -64,12 +64,16 @@ ast_node_destroy(ast_node_t *node)
     case AST_FUNCTION_DECLARATION:
       ast_node_destroy(node->data.function.body);
       break;
+    case AST_BINARY_OPERATION:
+      ast_node_destroy(node->data.binary_operation.left);
+      ast_node_destroy(node->data.binary_operation.right);
+      break;
+    case AST_LITERAL:
+      break;
     case AST_RETURN_STMT:
       break;
     case AST_UNKOWN_NODE:
       break;
-    case AST_LITERAL:
-      break;
     default:
       assert(false && "unmapped free strategy");
   }