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4coder/4coder_jump_sticky.cpp

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/*
4coder_jump_sticky.cpp - Commands and helpers for parsing jump locations from
compiler errors, sticking markers on jump locations, and jumping to them.
*/
// TOP
static Marker_List_Node *marker_list_first = 0;
static Marker_List_Node *marker_list_last = 0;
////////////////////////////////
static uint32_t
binary_search(uint32_t *array, int32_t stride, int32_t count, uint32_t x){
uint8_t *raw = (uint8_t*)array;
uint32_t i = 0;
uint32_t first = 0;
uint32_t last = count;
if (first < last){
for (;;){
i = (first + last)/2;
uint32_t k = *(uint32_t*)(raw + stride*i);
if (k < x){
first = i;
}
else if (k > x){
last = i;
}
else{ // NOTE(allen): array[i] == x
break;
}
if (first + 1 >= last){
i = first;
break;
}
}
}
return(i);
}
static Sticky_Jump_Destination_Array
make_sticky_jump_destination_array(uint32_t first_jump_index, Marker_Handle handle){
Sticky_Jump_Destination_Array r;
r.first_jump_index = first_jump_index;
r.handle = handle;
return(r);
}
static Sticky_Jump_Source
make_sticky_jump_source(uint32_t line_number, uint32_t flags){
Sticky_Jump_Source r;
r.line_number = line_number;
r.flags = flags;
return(r);
}
static void
double_dst_max(General_Memory *general, Marker_List *list){
uint32_t new_dst_max = list->dst_max*2;
list->dst = gen_realloc_array(general, Sticky_Jump_Destination_Array, list->dst, list->dst_max, new_dst_max);
list->dst_max = new_dst_max;
}
static void
double_jump_max(General_Memory *general, Marker_List *list){
uint32_t new_jump_max = list->jump_max*2;
list->jumps = gen_realloc_array(general, Sticky_Jump_Source, list->jumps, list->jump_max, new_jump_max);
list->jump_max = new_jump_max;
}
static void
marker_list_remove_references(Marker_List *list, Marker_Handle handle){
int32_t count = list->dst_count;
Sticky_Jump_Destination_Array *dst = list->dst;
for (int32_t i = 0; i < count; ++i, ++dst){
if (dst->handle == handle){
dst->handle = 0;
}
}
}
static void
sticky_jump_markers_cleanup(Application_Links *app, Marker_Handle handle, void *user_data, uint32_t user_data_size){
if (user_data_size == sizeof(Marker_List*)){
Marker_List *list = *(Marker_List**)user_data;
marker_list_remove_references(list, handle);
}
}
// TODO(allen): what to do when a push returns 0?
static void
init_marker_list(Application_Links *app, Partition *part, General_Memory *general, int32_t buffer_id,
Marker_List *list){
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
Temp_Memory temp = begin_temp_memory(part);
ID_Based_Jump_Location *location_list = (ID_Based_Jump_Location*)partition_current(part);
uint32_t location_count = 0;
list->dst_max = 64;
list->dst = gen_array(general, Sticky_Jump_Destination_Array, list->dst_max);
list->jump_max = 64;
list->jumps = gen_array(general, Sticky_Jump_Source, list->jump_max);
list->previous_size = buffer.size;
uint32_t prev_jump_count = 0;
for (int32_t this_jump_line = 1;; ++this_jump_line){
bool32 output_jump = false;
Name_Based_Jump_Location location = {0};
bool32 is_sub_error = false;
Temp_Memory temp_name = begin_temp_memory(part);
String line_str = {0};
if (read_line(app, part, &buffer, this_jump_line, &line_str)){
int32_t colon_index = 0;
if (parse_jump_location(line_str, &location, &colon_index, &is_sub_error)){
output_jump = true;
}
else{
end_temp_memory(temp_name);
}
}
else{
end_temp_memory(temp_name);
break;
}
if (output_jump){
Buffer_Summary jump_buffer = {0};
if (open_file(app, &jump_buffer, location.file.str, location.file.size, false, true)){
end_temp_memory(temp_name);
if (jump_buffer.buffer_id != 0){
ID_Based_Jump_Location id_location = {0};
id_location.buffer_id = jump_buffer.buffer_id;
id_location.line = location.line;
id_location.column = location.column;
if (location_count > 0){
ID_Based_Jump_Location *prev_parsed_loc = &location_list[location_count-1];
if (prev_parsed_loc->buffer_id != id_location.buffer_id){
Buffer_Summary location_buffer = get_buffer(app, prev_parsed_loc->buffer_id, AccessAll);
if (location_buffer.exists){
if (list->dst_count >= list->dst_max){
double_dst_max(general, list);
}
Marker_Handle new_handle = buffer_add_markers(app, &location_buffer, location_count,
sticky_jump_markers_cleanup, &list, sizeof(list));
list->dst[list->dst_count] = make_sticky_jump_destination_array(prev_jump_count, new_handle);
++list->dst_count;
prev_jump_count = list->jump_count;
Marker *markers = push_array(part, Marker, location_count);
for (uint32_t i = 0; i < location_count; ++i){
ID_Based_Jump_Location *write_loc = &location_list[i];
Partial_Cursor cursor = {0};
Buffer_Seek seek = seek_line_char(write_loc->line, write_loc->column);
if (buffer_compute_cursor(app, &location_buffer, seek, &cursor)){
markers[i].pos = cursor.pos;
markers[i].lean_right = false;
}
}
buffer_set_markers(app, &location_buffer, new_handle, 0, location_count, markers);
location_count = 0;
reset_temp_memory(temp);
}
}
}
ID_Based_Jump_Location *new_id_location = push_struct(part, ID_Based_Jump_Location);
*new_id_location = id_location;
++location_count;
if (list->jump_count >= list->jump_max){
double_jump_max(general, list);
}
uint32_t flags = 0;
if (is_sub_error){
flags |= JumpFlag_IsSubJump;
}
list->jumps[list->jump_count] = make_sticky_jump_source(this_jump_line, flags);
++list->jump_count;
}
}
else{
end_temp_memory(temp_name);
}
}
}
if (location_count > 0){
ID_Based_Jump_Location *prev_parsed_loc = &location_list[location_count-1];
Buffer_Summary location_buffer = get_buffer(app, prev_parsed_loc->buffer_id, AccessAll);
if (list->dst_count >= list->dst_max){
double_dst_max(general, list);
}
Marker_Handle new_handle = buffer_add_markers(app, &location_buffer, location_count,
sticky_jump_markers_cleanup, &list, sizeof(list));
list->dst[list->dst_count] = make_sticky_jump_destination_array(prev_jump_count, new_handle);
++list->dst_count;
prev_jump_count = list->jump_count;
Marker *markers = push_array(part, Marker, location_count);
for (uint32_t i = 0; i < location_count; ++i){
ID_Based_Jump_Location *location = &location_list[i];
Partial_Cursor cursor = {0};
Buffer_Seek seek = seek_line_char(location->line, location->column);
if (buffer_compute_cursor(app, &location_buffer, seek, &cursor)){
markers[i].pos = cursor.pos;
markers[i].lean_right = false;
}
}
buffer_set_markers(app, &location_buffer, new_handle, 0, location_count, markers);
location_count = 0;
reset_temp_memory(temp);
}
end_temp_memory(temp);
}
static void
free_marker_list(General_Memory *general, Marker_List list){
general_memory_free(general, list.dst);
general_memory_free(general, list.jumps);
}
static void
delete_marker_list(Marker_List_Node *node){
zdll_remove(marker_list_first, marker_list_last, node);
}
static void
delete_marker_list(Marker_List *list){
delete_marker_list(CastFromMember(Marker_List_Node, list, list));
}
static Marker_List*
make_new_marker_list_for_buffer(General_Memory *general, int32_t buffer_id){
Marker_List_Node *new_node = gen_array(general, Marker_List_Node, 1);
zdll_push_back(marker_list_first, marker_list_last, new_node);
new_node->buffer_id = buffer_id;
memset(&new_node->list, 0, sizeof(new_node->list));
Marker_List *result = &new_node->list;
return(result);
}
static Marker_List*
get_marker_list_for_buffer(General_Memory *general, int32_t buffer_id){
Marker_List *result = 0;
for (Marker_List_Node *node = marker_list_first;
node != 0;
node = node->next){
if (buffer_id == node->buffer_id){
result = &node->list;
break;
}
}
return(result);
}
static Marker_List*
get_or_make_list_for_buffer(Application_Links *app, Partition *part, General_Memory *general, int32_t buffer_id){
Marker_List *result = get_marker_list_for_buffer(general, buffer_id);
if (result != 0){
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
// TODO(allen): When buffers get an "edit sequence number" use that instead.
if (result->previous_size != buffer.size){
delete_marker_list(result);
result = 0;
}
}
if (result == 0){
result = make_new_marker_list_for_buffer(general, buffer_id);
init_marker_list(app, part, general, buffer_id, result);
}
return(result);
}
static bool32
get_jump_from_list(Application_Links *app, Marker_List *list, int32_t index, ID_Pos_Jump_Location *location){
bool32 result = false;
if (index >= 0 && index < list->jump_count){
uint32_t handle_index = binary_search(&list->dst->first_jump_index, sizeof(*list->dst), list->dst_count, index);
Sticky_Jump_Destination_Array destinations = list->dst[handle_index];
uint32_t marker_index = index - destinations.first_jump_index;
Buffer_Summary buffer = get_buffer_by_marker_handle(app, destinations.handle, AccessAll);
if (buffer.exists){
Marker marker;
buffer_get_markers(app, &buffer, destinations.handle, marker_index, 1, &marker);
location->buffer_id = buffer.buffer_id;
location->pos = marker.pos;
result = true;
}
}
return(result);
}
static int32_t
get_index_exact_from_list(Marker_List *list, int32_t line){
int32_t result = -1;
uint32_t jump_index = binary_search(&list->jumps->line_number, sizeof(*list->jumps), list->jump_count, line);
if (list->jumps[jump_index].line_number == (uint32_t)line){
result = jump_index;
}
return(result);
}
static int32_t
get_index_nearest_from_list(Marker_List *list, int32_t line){
int32_t result = binary_search(&list->jumps->line_number, sizeof(*list->jumps), list->jump_count, line);
return(result);
}
static int32_t
get_line_from_list(Marker_List *list, int32_t index){
int32_t result = 0;
if (0 <= index && index < list->jump_count){
result = list->jumps[index].line_number;
}
return(result);
}
CUSTOM_COMMAND_SIG(goto_jump_at_cursor_sticky)
CUSTOM_DOC("If the cursor is found to be on a jump location, parses the jump location and brings up the file and position in another view and changes the active panel to the view containing the jump.")
{
General_Memory *general = &global_general;
Partition *part = &global_part;
Temp_Memory temp = begin_temp_memory(part);
View_Summary view = get_active_view(app, AccessProtected);
Marker_List *list = get_or_make_list_for_buffer(app, part, general, view.buffer_id);
int32_t list_index = get_index_exact_from_list(list, view.cursor.line);
if (list_index >= 0){
ID_Pos_Jump_Location location = {0};
if (get_jump_from_list(app, list, list_index, &location)){
Buffer_Summary buffer = {0};
if (get_jump_buffer(app, &buffer, &location)){
change_active_panel(app);
View_Summary target_view = get_active_view(app, AccessAll);
switch_to_existing_view(app, &target_view, &buffer);
jump_to_location(app, &target_view, &buffer, location);
}
}
}
end_temp_memory(temp);
}
CUSTOM_COMMAND_SIG(goto_jump_at_cursor_same_panel_sticky)
CUSTOM_DOC("If the cursor is found to be on a jump location, parses the jump location and brings up the file and position in this view, losing the compilation output or jump list.")
{
General_Memory *general = &global_general;
Partition *part = &global_part;
Temp_Memory temp = begin_temp_memory(part);
View_Summary view = get_active_view(app, AccessProtected);
Marker_List *list = get_or_make_list_for_buffer(app, part, general, view.buffer_id);
int32_t list_index = get_index_exact_from_list(list, view.cursor.line);
if (list_index >= 0){
ID_Pos_Jump_Location location = {0};
if (get_jump_from_list(app, list, list_index, &location)){
Buffer_Summary buffer = {0};
if (get_jump_buffer(app, &buffer, &location)){
View_Summary target_view = view;
jump_to_location(app, &target_view, &buffer, location);
}
}
}
end_temp_memory(temp);
}
static void
goto_jump_in_order(Application_Links *app, Marker_List *list, View_Summary *jump_view, ID_Pos_Jump_Location location){
Buffer_Summary buffer = {0};
if (get_jump_buffer(app, &buffer, &location)){
View_Summary target_view = get_active_view(app, AccessAll);
if (target_view.view_id == jump_view->view_id){
change_active_panel(app);
target_view = get_active_view(app, AccessAll);
}
switch_to_existing_view(app, &target_view, &buffer);
jump_to_location(app, &target_view, &buffer, location);
prev_location.buffer_id = location.buffer_id;
prev_location.line = location.pos;
prev_location.column = 0;
}
}
static bool32
jump_is_repeat(ID_Based_Jump_Location prev, ID_Pos_Jump_Location location){
bool32 skip = false;
if (prev.buffer_id == location.buffer_id && prev.line == location.pos){
skip = true;
}
return(skip);
}
static void
goto_next_filtered_jump(Application_Links *app, Marker_List *list, View_Summary *jump_view, int32_t list_index, int32_t direction, bool32 skip_repeats, bool32 skip_sub_errors){
Assert(direction == 1 || direction == -1);
while (list_index >= 0 && list_index < list->jump_count){
ID_Pos_Jump_Location location = {0};
if (get_jump_from_list(app, list, list_index, &location)){
bool32 skip_this = false;
if (skip_repeats && jump_is_repeat(prev_location, location)){
skip_this = true;
}
else if (skip_sub_errors && (list->jumps[list_index].flags & JumpFlag_IsSubJump)){
skip_this = true;
}
if (!skip_this){
goto_jump_in_order(app, list, jump_view, location);
int32_t updated_line = get_line_from_list(list, list_index);
view_set_cursor(app, jump_view, seek_line_char(updated_line, 1), true);
break;
}
}
list_index += direction;
}
}
static Locked_Jump_State
get_locked_jump_state(Application_Links *app, Partition *part, General_Memory *general){
Locked_Jump_State result = {0};
result.view = get_view_for_locked_jump_buffer(app);
if (result.view.exists){
result.list = get_or_make_list_for_buffer(app, part, general, result.view.buffer_id);
result.list_index = get_index_nearest_from_list(result.list, result.view.cursor.line);
}
return(result);
}
CUSTOM_COMMAND_SIG(goto_next_jump_sticky)
CUSTOM_DOC("If a buffer containing jump locations has been locked in, goes to the next jump in the buffer, skipping sub jump locations.")
{
General_Memory *general = &global_general;
Partition *part = &global_part;
Locked_Jump_State jump_state = get_locked_jump_state(app, part, general);
if (jump_state.view.exists){
int32_t line = get_line_from_list(jump_state.list, jump_state.list_index);
if (line <= jump_state.view.cursor.line){
++jump_state.list_index;
}
goto_next_filtered_jump(app, jump_state.list, &jump_state.view, jump_state.list_index, 1, true, true);
}
}
CUSTOM_COMMAND_SIG(goto_prev_jump_sticky)
CUSTOM_DOC("If a buffer containing jump locations has been locked in, goes to the previous jump in the buffer, skipping sub jump locations."){
General_Memory *general = &global_general;
Partition *part = &global_part;
Locked_Jump_State jump_state = get_locked_jump_state(app, part, general);
if (jump_state.view.exists){
if (jump_state.list_index > 0){
--jump_state.list_index;
}
goto_next_filtered_jump(app, jump_state.list, &jump_state.view, jump_state.list_index, -1, true, true);
}
}
CUSTOM_COMMAND_SIG(goto_next_jump_no_skips_sticky)
CUSTOM_DOC("If a buffer containing jump locations has been locked in, goes to the next jump in the buffer, and does not skip sub jump locations.")
{
General_Memory *general = &global_general;
Partition *part = &global_part;
Locked_Jump_State jump_state = get_locked_jump_state(app, part, general);
if (jump_state.view.exists){
int32_t line = get_line_from_list(jump_state.list, jump_state.list_index);
if (line <= jump_state.view.cursor.line){
++jump_state.list_index;
}
goto_next_filtered_jump(app, jump_state.list, &jump_state.view, jump_state.list_index, 1, true, false);
}
}
CUSTOM_COMMAND_SIG(goto_prev_jump_no_skips_sticky)
CUSTOM_DOC("If a buffer containing jump locations has been locked in, goes to the previous jump in the buffer, and does not skip sub jump locations.")
{
General_Memory *general = &global_general;
Partition *part = &global_part;
Locked_Jump_State jump_state = get_locked_jump_state(app, part, general);
if (jump_state.view.exists){
if (jump_state.list_index > 0){
--jump_state.list_index;
}
goto_next_filtered_jump(app, jump_state.list, &jump_state.view, jump_state.list_index, -1, true, false);
}
}
CUSTOM_COMMAND_SIG(goto_first_jump_sticky)
CUSTOM_DOC("If a buffer containing jump locations has been locked in, goes to the first jump in the buffer.")
{
General_Memory *general = &global_general;
Partition *part = &global_part;
Locked_Jump_State jump_state = get_locked_jump_state(app, part, general);
if (jump_state.view.exists){
int32_t list_index = 0;
ID_Pos_Jump_Location location = {0};
if (get_jump_from_list(app, jump_state.list, list_index, &location)){
goto_jump_in_order(app, jump_state.list, &jump_state.view, location);
int32_t updated_line = get_line_from_list(jump_state.list, list_index);
view_set_cursor(app, &jump_state.view, seek_line_char(updated_line, 1), true);
}
}
}
CUSTOM_COMMAND_SIG(goto_first_jump_same_panel_sticky)
CUSTOM_DOC("If a buffer containing jump locations has been locked in, goes to the first jump in the buffer and views the buffer in the panel where the jump list was.")
{
General_Memory *general = &global_general;
Partition *part = &global_part;
Locked_Jump_State jump_state = get_locked_jump_state(app, part, general);
if (jump_state.view.exists){
int32_t list_index = 0;
ID_Pos_Jump_Location location = {0};
if (get_jump_from_list(app, jump_state.list, list_index, &location)){
Buffer_Summary buffer = {0};
if (get_jump_buffer(app, &buffer, &location)){
jump_to_location(app, &jump_state.view, &buffer, location);
}
}
}
}
//
// Insert Newline or Tigger Jump on Read Only Buffer
//
CUSTOM_COMMAND_SIG(newline_or_goto_position_sticky)
CUSTOM_DOC("If the buffer in the active view is writable, inserts a character, otherwise performs goto_jump_at_cursor.")
{
View_Summary view = get_active_view(app, AccessProtected);
Buffer_Summary buffer = get_buffer(app, view.buffer_id, AccessProtected);
if (buffer.lock_flags & AccessProtected){
goto_jump_at_cursor_sticky(app);
lock_jump_buffer(buffer);
}
else{
write_character(app);
}
}
CUSTOM_COMMAND_SIG(newline_or_goto_position_same_panel_sticky)
CUSTOM_DOC("If the buffer in the active view is writable, inserts a character, otherwise performs goto_jump_at_cursor_same_panel.")
{
View_Summary view = get_active_view(app, AccessProtected);
Buffer_Summary buffer = get_buffer(app, view.buffer_id, AccessProtected);
if (buffer.lock_flags & AccessProtected){
goto_jump_at_cursor_same_panel_sticky(app);
lock_jump_buffer(buffer);
}
else{
write_character(app);
}
}
//
// End File Hook
//
OPEN_FILE_HOOK_SIG(default_end_file);
OPEN_FILE_HOOK_SIG(end_file_close_jump_list){
General_Memory *general = &global_general;
Marker_List *list = get_marker_list_for_buffer(general, buffer_id);
if (list != 0){
free_marker_list(general, *list);
delete_marker_list(list);
}
default_end_file(app, buffer_id);
return(0);
}
// BOTTOM
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