ast: add lots of ast node definitions

bshell/ast/array.c

@@ -0,0 +1,25 @@
+#include "../parse/token.h"
+#include "ast.h"
+
+static enum bshell_status collect_children(
+	struct ast_node *node,
+	struct ast_iterator *it)
+{
+	struct array_ast_node *array = (struct array_ast_node *)node;
+
+	fx_queue_entry *cur = fx_queue_first(&array->n_items);
+	while (cur) {
+		struct ast_node *child
+			= fx_unbox(struct ast_node, cur, n_entry);
+		ast_iterator_enqueue(it, child);
+		cur = fx_queue_next(cur);
+	}
+
+	return BSHELL_SUCCESS;
+}
+
+struct ast_node_definition array_ast_node = {
+	.def_id = AST_ARRAY,
+	.def_node_size = sizeof(struct array_ast_node),
+	.def_collect_children = collect_children,
+};