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/**
* mds — A micro-display server
* Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "simplify-tree.h"
#include <libmdsserver/macros.h>
/**
* Wrapper around `asprintf` that makes sure that first
* argument gets set to `NULL` on error and that zero is
* returned on success rather than the number of printed
* characters
*
* @param VAR:char** The output parameter for the string
* @param ...:const char*, ... The format string and arguments
* @return :int Zero on success, -1 on error
*/
#define xasprintf(VAR, ...) \
(asprintf(&(VAR), __VA_ARGS__) < 0 ? (VAR = NULL, -1) : 0)
/**
* Pointer to the beginning of the current line
*/
#define LINE \
(source_code.lines[line_i])
/**
* Add an error the to error list
*
* @param ERROR_IS_IN_FILE:int Whether the error is in the layout code
* @param SEVERITY:identifier * in `MDS_KBDC_PARSE_ERROR_*` to indicate severity
* @param ...:const char*, ... Error description format string and arguments
*/
#define NEW_ERROR(ERROR_IS_IN_FILE, SEVERITY, ...) \
do \
{ \
if (errors_ptr + 1 >= errors_size) \
{ \
errors_size = errors_size ? (errors_size << 1) : 2; \
fail_if (xxrealloc(old_errors, *errors, errors_size, mds_kbdc_parse_error_t*)); \
} \
fail_if (xcalloc(error, 1, mds_kbdc_parse_error_t)); \
(*errors)[errors_ptr + 0] = error; \
(*errors)[errors_ptr + 1] = NULL; \
errors_ptr++; \
error->line = line_i; \
error->severity = MDS_KBDC_PARSE_ERROR_##SEVERITY; \
error->error_is_in_file = ERROR_IS_IN_FILE; \
error->start = (size_t)(line - LINE); \
error->end = (size_t)(end - LINE); \
fail_if ((error->pathname = strdup(pathname)) == NULL); \
if (ERROR_IS_IN_FILE) \
fail_if ((error->code = strdup(source_code.real_lines[line_i])) == NULL); \
fail_if (xasprintf(error->description, __VA_ARGS__)); \
} \
while (0)
/**
* Simplify a tree and generate related warnings in the process
*
* @param tree The tree, it may be modified
* @param errors `NULL`-terminated list of found error, `NULL` if no errors were found or if -1 is returned
* @return -1 if an error occursed that cannot be stored in `*errors`, zero otherwise
*/
int simplify_tree(mds_kbdc_tree_t** restrict tree, mds_kbdc_parse_error_t*** restrict errors)
{
mds_kbdc_parse_error_t* error;
mds_kbdc_parse_error_t** old_errors = NULL;
size_t errors_size = 0;
size_t errors_ptr = 0;
*errors = NULL;
return 0;
}
#undef NEW_ERROR
#undef LINE
#undef xasprintf
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