Function jl_apply_edits

src/cli/config_json_like.c:1241–1292

}

static int jl_apply_edits(const char *source, size_t source_length, jl_edit_t *edits,
                          size_t edit_count, char **result_out, size_t *result_length_out) {
    if (edit_count == 2U && edits[1].start < edits[0].start) {
        jl_edit_t swap = edits[0];
        edits[0] = edits[1];
        edits[1] = swap;
    }
    size_t result_length = source_length;
    size_t previous_end = 0;
    for (size_t i = 0; i < edit_count; i++) {
        if (edits[i].start < previous_end || edits[i].end < edits[i].start ||
            edits[i].end > source_length) {
            return -1;
        }
        size_t removed = edits[i].end - edits[i].start;
        if (removed > result_length) {
            return -1;
        }
        result_length -= removed;
        if (edits[i].replacement_length > SIZE_MAX - result_length) {
            return -1;
        }
        result_length += edits[i].replacement_length;
        previous_end = edits[i].end;
    }
    if (result_length > JL_MAX_FILE_BYTES || result_length == SIZE_MAX) {
        return -1;
    }

    char *result = malloc(result_length + 1U);
    if (!result) {
        return -1;
    }
    size_t source_pos = 0;
    size_t result_pos = 0;
    for (size_t i = 0; i < edit_count; i++) {
        size_t prefix_length = edits[i].start - source_pos;
        memcpy(result + result_pos, source + source_pos, prefix_length);
        result_pos += prefix_length;
        if (edits[i].replacement_length > 0U) {
            memcpy(result + result_pos, edits[i].replacement, edits[i].replacement_length);
            result_pos += edits[i].replacement_length;
        }
        source_pos = edits[i].end;
    }
    memcpy(result + result_pos, source + source_pos, source_length - source_pos);
    result_pos += source_length - source_pos;
    result[result_pos] = '\0';
    *result_out = result;
    *result_length_out = result_pos;
    return 0;
}

static bool jl_snapshot_state_equal(const jl_file_snapshot_t *left,
                                    const jl_file_snapshot_t *right) {