lang: ast: re-factor parser into multiple files

lang/ast/ctx.h

@@ -0,0 +1,37 @@
+#ifndef _AST_CTX_H_
+#define _AST_CTX_H_
+
+#include <blue/core/queue.h>
+#include <ivy/lang/ast.h>
+#include <ivy/status.h>
+
+#define parser_push_state(parser, node_id, node_type, state_type)              \
+	((state_type *)parser_push_state_generic(                              \
+		parser, node_id, sizeof(node_type), sizeof(state_type)))
+#define parser_get_state(parser, state_type)                                   \
+	((state_type *)parser_get_state_generic(parser))
+
+struct parser_state {
+	b_queue_entry s_entry;
+	struct ivy_ast_node *s_parent;
+	struct ivy_ast_node *s_node;
+};
+
+struct ivy_parser {
+	enum ivy_status p_status;
+	b_queue p_state;
+	b_queue p_token_queue;
+	b_queue p_node_queue;
+};
+
+enum pop_state_flags {
+	STATE_ADD_NODE_TO_PARENT = 0x01u,
+};
+
+extern struct parser_state *parser_push_state_generic(
+	struct ivy_parser *parser, enum ivy_ast_node_type node_type,
+	size_t node_size, size_t state_size);
+extern void parser_pop_state(struct ivy_parser *parser, enum pop_state_flags flags);
+extern struct parser_state *parser_get_state_generic(struct ivy_parser *parser);
+
+#endif