ascension: src/error.c@d83af80eb09b

     1 /*

     2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.

     3  * Copyright 2023 Mike Becker. All rights reserved.

     4  *

     5  * Redistribution and use in source and binary forms, with or without

     6  * modification, are permitted provided that the following conditions are met:

     7  *

     8  *   1. Redistributions of source code must retain the above copyright

     9  *      notice, this list of conditions and the following disclaimer.

    10  *

    11  *   2. Redistributions in binary form must reproduce the above copyright

    12  *      notice, this list of conditions and the following disclaimer in the

    13  *      documentation and/or other materials provided with the distribution.

    14  *

    15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

    16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

    18  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE

    19  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

    25  * POSSIBILITY OF SUCH DAMAGE.

    26  */

    28 #include "ascension/context.h"

    29 #include "ascension/error.h"

    30 #include "ascension/utils.h"

    32 #include <cx/buffer.h>

    34 void asc_error_cchar(char const* text) {

    35     asc_error_cxstr(cx_str(text));

    36 }

    38 void asc_error_cuchar(unsigned char const* text) {

    39     asc_error_cxstr(cx_str((char const*)text));

    40 }

    42 void asc_error_cxstr(cxstring text) {

    43     if (text.length == 0) return;

    45     // write error to debug output

    46     asc_dprintf("ERROR: %*.s", (int)text.length, text.ptr);

    48     // write error to buffer

    49     CxBuffer* buf = &asc_context.error_buffer;

    50     cxBufferWrite(text.ptr, 1, text.length, buf);

    51     cxBufferPut(buf, '\n');

    53     asc_set_flag(&asc_context.flags, ASC_FLAG_HAS_ERROR);

    54 }

    56 bool asc_has_error(void) {

    57     return asc_test_flag(asc_context.flags, ASC_FLAG_HAS_ERROR);

    58 }

    60 char const* asc_get_error(void) {

    61     // we zero-terminate the current buffer contents before providing them

    62     cxBufferPut(&asc_context.error_buffer, 0);

    63     --asc_context.error_buffer.pos;

    64     --asc_context.error_buffer.size;

    65     return asc_context.error_buffer.space;

    66 }

    68 void asc_clear_error(void) {

    69     cxBufferClear(&asc_context.error_buffer);

    70     asc_clear_flag(&asc_context.flags, ASC_FLAG_HAS_ERROR);

    71 }

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