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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_Array
parse_buffer_to_jump_array(Application_Links *app, Partition *arena, Buffer_Summary buffer){
Sticky_Jump_Array result = {0};
result.jumps = push_array(arena, Sticky_Jump, 0);
for (int32_t line = 1;; line += 1){
bool32 output_jump = false;
int32_t colon_index = 0;
bool32 is_sub_error = false;
Buffer_ID out_buffer_id = 0;
int32_t out_pos = 0;
Temp_Memory temp = begin_temp_memory(arena);
String line_str = {0};
if (read_line(app, arena, &buffer, line, &line_str)){
Name_Line_Column_Location location = {0};
if (parse_jump_location(line_str, &location, &colon_index, &is_sub_error)){
Buffer_Summary jump_buffer = {0};
if (open_file(app, &jump_buffer, location.file.str, location.file.size, false, true)){
if (jump_buffer.exists){
Partial_Cursor cursor = {0};
if (buffer_compute_cursor(app, &jump_buffer,
seek_line_char(location.line, location.column),
&cursor)){
out_buffer_id = jump_buffer.buffer_id;
out_pos = cursor.pos;
output_jump = true;
}
}
}
}
}
else{
end_temp_memory(temp);
break;
}
end_temp_memory(temp);
if (output_jump){
Sticky_Jump *jump = push_array(arena, Sticky_Jump, 1);
jump->list_line = line;
jump->list_colon_index = colon_index;
jump->is_sub_error = is_sub_error;
jump->jump_buffer_id = out_buffer_id;
jump->jump_pos = out_pos;
}
}
result.count = (int32_t)(push_array(arena, Sticky_Jump, 0) - result.jumps);
return(result);
}
static Range_Array
jump_array_mark_buffer_ranges(Partition *arena, Sticky_Jump_Array jumps){
Range_Array result = {0};
result.ranges = push_array(arena, Range, 0);
int32_t start_i = 0;
for (int32_t i = 1; i <= jumps.count; i += 1){
bool32 is_end = false;
if (i == jumps.count){
is_end = true;
}
else if (jumps.jumps[i].jump_buffer_id != jumps.jumps[start_i].jump_buffer_id){
is_end = true;
}
if (is_end){
Range *new_range = push_array(arena, Range, 1);
new_range->first = start_i;
new_range->one_past_last = i;
start_i = i;
}
}
result.count = (int32_t)(push_array(arena, Range, 0) - result.ranges);
return(result);
}
#if 1
static void
init_marker_list(Application_Links *app, Partition *part, General_Memory *general, Buffer_ID buffer_id,
Marker_List *list){
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
Temp_Memory temp = begin_temp_memory(part);
Sticky_Jump_Array jumps = parse_buffer_to_jump_array(app, part, buffer);
Range_Array buffer_ranges = jump_array_mark_buffer_ranges(part, jumps);
Dynamic_Scope scope_array[2];
scope_array[0] = buffer_get_dynamic_scope(app, buffer_id);
Managed_Object list_sentinel = managed_list_node_alloc(app, scope_array[0]);
for (int32_t i = 0; i < buffer_ranges.count; i += 1){
Range range = buffer_ranges.ranges[i];
Buffer_ID target_buffer_id = jumps.jumps[range.first].jump_buffer_id;
int32_t jump_count = range.one_past_last - range.first;
scope_array[1] = buffer_get_dynamic_scope(app, target_buffer_id);
Dynamic_Scope scope = get_intersected_dynamic_scope(app, scope_array, ArrayCount(scope_array));
Managed_Object marker_handle = buffer_add_markers(app, target_buffer_id, jump_count, &scope);
Temp_Memory marker_temp = begin_temp_memory(part);
Marker *markers = push_array(part, Marker, jump_count);
for (int32_t j = 0; j < jump_count; j += 1){
markers[j].pos = jumps.jumps[j + range.first].jump_pos;
markers[j].lean_right = false;
}
buffer_set_markers(app, marker_handle, 0, jump_count, markers);
end_temp_memory(marker_temp);
int32_t line_details_mem_size = sizeof(Sticky_Jump_Line_Details)*jump_count;
Managed_Object memory = managed_memory_alloc(app, scope, line_details_mem_size);
Temp_Memory details_temp = begin_temp_memory(part);
Sticky_Jump_Line_Details *details = push_array(part, Sticky_Jump_Line_Details, jump_count);
for (int32_t j = 0; j < jump_count; j += 1){
details[j].list_line = jumps.jumps[j + range.first].list_line;
details[j].list_colon_index = jumps.jumps[j + range.first].list_colon_index;
details[j].is_sub_error = jumps.jumps[j + range.first].is_sub_error;
}
managed_memory_set(app, memory, 0, details, line_details_mem_size);
end_temp_memory(details_temp);
Managed_Object node_handle = managed_list_node_alloc(app, scope, sizeof(Sticky_Jump_Node_Header));
managed_list_node_insert(app, list_sentinel, node_handle, ListInsert_Back);
Sticky_Jump_Node_Header node_header = {0};
node_header.memory = memory;
node_header.markers = marker_handle;
node_header.count = jump_count;
managed_memory_set(app, node_handle, 0, &node_header, sizeof(node_header));
}
end_temp_memory(temp);
}
#else
static void
init_marker_list(Application_Links *app, Partition *part, General_Memory *general, Buffer_ID buffer_id,
Marker_List *list){
Buffer_Summary buffer = get_buffer(app, buffer_id, AccessAll);
Temp_Memory temp = begin_temp_memory(part);
Sticky_Jump_Array jumps = parse_buffer_to_jump_array(app, part, buffer);
Range_Array buffer_ranges = jump_array_mark_buffer_ranges(part, jumps);
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 i = 0; i < buffer_ranges.count; i += 1){
Range range = buffer_ranges.ranges[i];
Buffer_ID target_buffer_id = jumps.jumps[range.first].jump_buffer_id;
int32_t jump_count = range.one_past_last - range.first;
if (list->dst_count >= list->dst_max){
double_dst_max(general, list);
}
Buffer_Summary location_buffer = get_buffer(app, target_buffer_id, AccessAll);
Marker_Handle new_handle = buffer_add_markers(app, &location_buffer, jump_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;
Temp_Memory marker_temp = begin_temp_memory(part);
Marker *markers = push_array(part, Marker, jump_count);
for (int32_t j = 0; j < jump_count; j += 1){
markers[j].pos = jumps.jumps[j + range.first].jump_pos;
markers[j].lean_right = false;
}
buffer_set_markers(app, &location_buffer, new_handle, 0, jump_count, markers);
end_temp_memory(marker_temp);
for (int32_t j = range.first; j < range.one_past_last; j += 1){
if (list->jump_count >= list->jump_max){
double_jump_max(general, list);
}
uint32_t flags = 0;
if (jumps.jumps[j].is_sub_error){
flags |= JumpFlag_IsSubJump;
}
list->jumps[list->jump_count] = make_sticky_jump_source(jumps.jumps[j].list_line, flags);
++list->jump_count;
}
}
end_temp_memory(temp);
}
#endif
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_Line_Column_Jump_Location prev, ID_Pos_Jump_Location location){
bool32 skip = false;
// NOTE(allen): This looks wrong, but it is correct. The prev_location is a line column type
// because that is how the old-style direct jumps worked, and they are still supported. All code paths
// in the sticky jump system treat line as the field for pos and ignore column. When the time has
// passed and the direct jump legacy system is gone then this can be corrected.
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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