namespaces: Add a namespace structure that represents a file

We have been always parsing a single function. Since we want to have
multiple functions in a near future, this patch introduces an namespace
that represents an entire file.

To ensure a function is defined inside a namespace, a helper function
was created. Today our ast_node structure is highly exposed, and this is
something that Johnny and I have been discussed. So then, this is a
first step to try to protected the code generation from our ast tree.

Signed-off-by: Carlos Maniero <carlos@maniero.me>

1 files changed, 13 insertions, 0 deletions

diff --git a/src/ast_pretty_printer.c b/src/ast_pretty_printer.c
index b14bf34..f5fcf70 100644
--- a/src/ast_pretty_printer.c
+++ b/src/ast_pretty_printer.c
@@ -65,6 +65,19 @@ ast_pretty_printer_print_ast(ast_pretty_printer_t *printer, ast_node_t *ast)
   assert(ast);
 
   switch (ast->kind) {
+    case AST_NAMESPACE:
+      ast_pretty_printer_printf(printer, "Namespace\n");
+      ast_pretty_printer_add_indentation(printer);
+      {
+        for (size_t i = 0; i < ast->data.ns.nodes->size; ++i) {
+          if (i + 1 >= ast->data.ns.nodes->size) {
+            ast_pretty_printer_set_lst_children(printer);
+          }
+          ast_pretty_printer_print_ast(printer, vector_at(ast->data.ns.nodes, i));
+        }
+        ast_pretty_printer_rm_indentation(printer);
+      }
+      break;
     case AST_IF_STMT: {
       ast_if_stmt_t if_stmt = ast->data.if_stmt;
       ast_pretty_printer_printf(printer, "IfStmt\n");