import symbol:*
import tree:*
import vector:*
import stack:*
import map:*
import util:*
import string:*
import mem:*
import io:*
import importer:*
import ast_node:*

		/*Importer * importer;*/
		/*NodeTree<ASTData>* builtin_trans_unit; // the top scope for language level stuff*/
		/*std::map<std::string, std::vector<NodeTree<ASTData>*>> languageLevelReservedWords;*/
		/*std::map<std::string, std::vector<NodeTree<ASTData>*>> languageLevelOperators;*/
		/*std::map<NodeTree<ASTData>*, NodeTree<ASTData>*> this_map; // used to map implicit "this" variables to their type*/
		/*NodeTree<ASTData>* topScope; //maintained for templates that need to add themselves to the top scope no matter where they are instantiated*/
        /*int lambdaID = 0;*/
obj ast_transformation (Object) {
    fun construct(): *ast_transformation {
        return this
    }
    fun copy_construct(old: *ast_transformation) {
    }
    fun operator=(old: ref ast_transformation) {
        destruct()
        copy_construct(&old)
    }
    fun destruct() {
    }

    fun first_pass(file_name: string, parse_tree: *tree<symbol>, importer: *importer): *ast_node {
        var translation_unit = ast_translation_unit_ptr()
        importer->register(file_name, parse_tree, translation_unit)
        return translation_unit
    }
}