/*************************************************************************/
/*  print_string.h                                                       */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
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/*************************************************************************/

#ifndef PRINT_STRING_H
#define PRINT_STRING_H

#include "core/variant/variant.h"

extern void (*_print_func)(String);

typedef void (*PrintHandlerFunc)(void *, const String &p_string, bool p_error);

struct PrintHandlerList {
	PrintHandlerFunc printfunc = nullptr;
	void *userdata = nullptr;

	PrintHandlerList *next = nullptr;

	PrintHandlerList() {}
};

String stringify_variants(Variant p_var);

template <typename... Args>
String stringify_variants(Variant p_var, Args... p_args) {
	return p_var.operator String() + " " + stringify_variants(p_args...);
}

void add_print_handler(PrintHandlerList *p_handler);
void remove_print_handler(PrintHandlerList *p_handler);

extern bool _print_line_enabled;
extern bool _print_error_enabled;
extern void __print_line(String p_string);
extern void print_error(String p_string);
extern void print_verbose(String p_string);
#define print_line(...) __print_line(stringify_variants(__VA_ARGS__))

#endif // PRINT_STRING_H