/*
 * Copyright (c) 2003 Matthijs Hollemans
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#ifndef COMPILE_H
#define COMPILE_H

#include <Resources.h>
#include <TypeConstants.h>

// Handle of file we're currently parsing.
extern FILE* yyin;

// Name of the file we're currently parsing.
extern char lexfile[];

// The line we're currently parsing.
extern int yylineno;

struct field_t;

// Describes a data type.
struct type_t {
        type_code               code;                   // type code
        const char*             name;                   // name of this type
        int32                   count;                  // how many fields
        field_t*                fields;                 // field definitions
        int32                   def_id;                 // default resource ID
        const char*             def_name;               // default resource name
};

// Used by the lexer and parser to pass around resource data. The rdef
// format allows string literals to contain embedded '\0' chars, so we
// can't use strlen() to find their length; instead we look at the size
// field for that (size includes the final '\0' too).
struct data_t {
        type_t                  type;                   // data type
        char*                   name;                   // name (only if this is a field)
        size_t                  size;                   // byte size of data
        void*                   ptr;                    // the actual data
};

// Describes a data field in a user-defined type.
struct field_t {
        type_t                  type;                   // data type
        const char*             name;                   // name of this field
        size_t                  resize;                 // if not 0, data will be resized
        data_t                  data;                   // default value
};

// Describes an array of data_t or field_t objects.
struct list_t {
        int32                   count;
        void*                   items;                  // cast to data_t* or field_t*
};

// Used by the parser to pass around resource IDs.
struct res_id_t {
        bool                    has_id;
        bool                    has_name;
        int32                   id;
        char*                   name;
};

// Describes a symbolic constant.
struct define_t {
        const char*             name;
        int32                   value;
};

// The output file we add resources to.
extern BResources rsrc;
extern const char* rsrc_file;

int yylex();
int yyparse();

void init_lexer();
void clean_up_lexer();

void init_parser();
void clean_up_parser();

void* alloc_mem(size_t size);
void free_mem(void* ptr);

// Returns the data type with the specified name.
type_t get_type(const char* name);

void abort_compile(status_t err, const char* format, ...);
void abort_compile();

#endif // COMPILE_H