1 files changed, 46 insertions, 0 deletions
diff --git a/src/scope.h b/src/scope.h
new file mode 100644
index 0000000..bce3567
--- /dev/null
+++ b/src/scope.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2023 Carlos Maniero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+#include "ast.h"
+#include "string_view.h"
+#include "vector.h"
+
+typedef struct scope_t
+{
+  vector_t *stack;
+} scope_t;
+
+typedef struct scope_item_t
+{
+  ast_identifier_t *identifier;
+  ast_node_t *node;
+} scope_item_t;
+
+scope_t *
+scope_new();
+
+void
+scope_destroy(scope_t *scope);
+
+void
+scope_enter(scope_t *scope);
+void
+scope_leave(scope_t *scope);
+
+ast_node_t *
+scope_get(scope_t *scope, ast_identifier_t *identifier);
+void
+scope_push(scope_t *scope, ast_identifier_t *identifier, ast_node_t *node);