Move TreePath functions into their own file
This commit is contained in:
Max Brunsfeld
parent
1412419434
commit
25d63d68f7
2 changed files with 213 additions and 209 deletions
|
|
@ -5,6 +5,7 @@
|
|||
#include "runtime/parser.h"
|
||||
#include "runtime/string_input.h"
|
||||
#include "runtime/document.h"
|
||||
#include "runtime/tree_path.h"
|
||||
|
||||
TSDocument *ts_document_new() {
|
||||
TSDocument *self = ts_calloc(1, sizeof(TSDocument));
|
||||
|
|
@ -89,212 +90,10 @@ void ts_document_edit(TSDocument *self, TSInputEdit edit) {
|
|||
ts_tree_edit(self->tree, &edit);
|
||||
}
|
||||
|
||||
typedef Array(TSRange) RangeArray;
|
||||
|
||||
#define NAME(t) \
|
||||
((t) \
|
||||
? (ts_language_symbol_name(doc->parser.language, ((TSTree *)(t))->symbol)) \
|
||||
: "<NULL>")
|
||||
|
||||
static bool push_change(RangeArray *results, TSPoint start, TSPoint end) {
|
||||
if (results->size > 0) {
|
||||
TSRange *last_range = array_back(results);
|
||||
if (ts_point_lte(start, last_range->end)) {
|
||||
last_range->end = end;
|
||||
return true;
|
||||
}
|
||||
}
|
||||
|
||||
if (ts_point_lt(start, end)) {
|
||||
TSRange range = { start, end };
|
||||
return array_push(results, range);
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
static bool tree_path_descend(TreePath *path, TSPoint position) {
|
||||
bool did_descend;
|
||||
do {
|
||||
did_descend = false;
|
||||
TreePathEntry entry = *array_back(path);
|
||||
TSLength child_position = entry.position;
|
||||
for (size_t i = 0; i < entry.tree->child_count; i++) {
|
||||
TSTree *child = entry.tree->children[i];
|
||||
TSLength child_right_position =
|
||||
ts_length_add(child_position, ts_tree_total_size(child));
|
||||
if (ts_point_lt(position, child_right_position.extent)) {
|
||||
TreePathEntry child_entry = { child, child_position, i };
|
||||
if (child->visible) {
|
||||
array_push(path, child_entry);
|
||||
return true;
|
||||
} else if (child->visible_child_count > 0) {
|
||||
array_push(path, child_entry);
|
||||
did_descend = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
child_position = child_right_position;
|
||||
}
|
||||
} while (did_descend);
|
||||
return false;
|
||||
}
|
||||
|
||||
static size_t tree_path_advance(TreePath *path) {
|
||||
size_t ascend_count = 0;
|
||||
while (path->size > 0) {
|
||||
TreePathEntry entry = array_pop(path);
|
||||
if (path->size == 0)
|
||||
break;
|
||||
TreePathEntry parent_entry = *array_back(path);
|
||||
if (parent_entry.tree->visible) {
|
||||
ascend_count++;
|
||||
}
|
||||
TSLength position =
|
||||
ts_length_add(entry.position, ts_tree_total_size(entry.tree));
|
||||
for (size_t i = entry.child_index + 1, n = parent_entry.tree->child_count;
|
||||
i < n; i++) {
|
||||
TSTree *next_child = parent_entry.tree->children[i];
|
||||
if (next_child->visible || next_child->visible_child_count > 0) {
|
||||
if (parent_entry.tree->visible) {
|
||||
ascend_count--;
|
||||
}
|
||||
array_push(path,
|
||||
((TreePathEntry){
|
||||
.tree = next_child, .child_index = i, .position = position,
|
||||
}));
|
||||
if (!next_child->visible)
|
||||
tree_path_descend(path, (TSPoint){ 0, 0 });
|
||||
return ascend_count;
|
||||
}
|
||||
position = ts_length_add(position, ts_tree_total_size(next_child));
|
||||
}
|
||||
}
|
||||
return ascend_count;
|
||||
}
|
||||
|
||||
static void tree_path_ascend(TreePath *path, size_t count) {
|
||||
for (size_t i = 0; i < count; i++) {
|
||||
do {
|
||||
array_pop(path);
|
||||
} while (path->size > 0 && !array_back(path)->tree->visible);
|
||||
}
|
||||
}
|
||||
|
||||
static void tree_path_init(TreePath *path, TSTree *tree) {
|
||||
array_clear(path);
|
||||
array_push(path,
|
||||
((TreePathEntry){
|
||||
.tree = tree, .position = { 0, 0, { 0, 0 } }, .child_index = 0,
|
||||
}));
|
||||
if (!tree->visible)
|
||||
tree_path_descend(path, (TSPoint){ 0, 0 });
|
||||
}
|
||||
|
||||
static bool ts_tree_get_changes(TSDocument *doc, TreePath *old_path,
|
||||
TreePath *new_path, size_t depth,
|
||||
RangeArray *results) {
|
||||
TSPoint position = { 0, 0 };
|
||||
|
||||
while (old_path->size && new_path->size) {
|
||||
bool is_different = false;
|
||||
TSPoint next_position = position;
|
||||
|
||||
TreePathEntry old_entry = *array_back(old_path);
|
||||
TreePathEntry new_entry = *array_back(new_path);
|
||||
TSTree *old_tree = old_entry.tree;
|
||||
TSTree *new_tree = new_entry.tree;
|
||||
TSSymbol old_symbol = old_tree->symbol;
|
||||
TSSymbol new_symbol = new_tree->symbol;
|
||||
size_t old_start_byte = old_entry.position.bytes;
|
||||
size_t new_start_byte = new_entry.position.bytes;
|
||||
size_t old_end_byte = old_start_byte + ts_tree_total_bytes(old_tree);
|
||||
size_t new_end_byte = new_start_byte + ts_tree_total_bytes(new_tree);
|
||||
TSPoint old_start_point =
|
||||
ts_point_add(old_entry.position.extent, old_tree->padding.extent);
|
||||
TSPoint new_start_point =
|
||||
ts_point_add(new_entry.position.extent, new_tree->padding.extent);
|
||||
TSPoint old_end_point = ts_point_add(old_start_point, old_tree->size.extent);
|
||||
TSPoint new_end_point = ts_point_add(new_start_point, new_tree->size.extent);
|
||||
|
||||
// printf("At [%-2lu, %-2lu] Compare (%-20s\t [%-2lu, %-2lu] - [%lu, %lu])\tvs\t(%-20s\t [%lu, %lu] - [%lu, %lu])\t",
|
||||
// position.row, position.column, NAME(old_tree), old_start_point.row,
|
||||
// old_start_point.column, old_end_point.row, old_end_point.column,
|
||||
// NAME(new_tree), new_start_point.row, new_start_point.column,
|
||||
// new_end_point.row, new_end_point.column);
|
||||
|
||||
if (ts_point_lt(position, old_start_point)) {
|
||||
if (ts_point_lt(position, new_start_point)) {
|
||||
next_position = ts_point_min(old_start_point, new_start_point);
|
||||
} else {
|
||||
is_different = true;
|
||||
next_position = old_start_point;
|
||||
}
|
||||
} else if (ts_point_lt(position, new_start_point)) {
|
||||
is_different = true;
|
||||
next_position = new_start_point;
|
||||
} else {
|
||||
if (old_tree == new_tree ||
|
||||
(!old_tree->has_changes && old_symbol == new_symbol &&
|
||||
old_start_byte == new_start_byte && old_end_byte == new_end_byte &&
|
||||
old_tree->parse_state != TS_TREE_STATE_NONE &&
|
||||
new_tree->parse_state != TS_TREE_STATE_NONE)) {
|
||||
next_position = old_end_point;
|
||||
} else if (old_symbol == new_symbol) {
|
||||
bool old_descended = tree_path_descend(old_path, position);
|
||||
bool new_descended = tree_path_descend(new_path, position);
|
||||
if (old_descended) {
|
||||
if (!new_descended) {
|
||||
tree_path_ascend(old_path, 1);
|
||||
is_different = true;
|
||||
next_position = new_end_point;
|
||||
}
|
||||
} else if (new_descended) {
|
||||
tree_path_ascend(new_path, 1);
|
||||
is_different = true;
|
||||
next_position = old_end_point;
|
||||
} else {
|
||||
next_position = ts_point_min(old_end_point, new_end_point);
|
||||
}
|
||||
} else {
|
||||
is_different = true;
|
||||
next_position = ts_point_min(old_end_point, new_end_point);
|
||||
}
|
||||
}
|
||||
|
||||
bool advance_old = ts_point_lte(old_end_point, next_position);
|
||||
bool advance_new = ts_point_lte(new_end_point, next_position);
|
||||
|
||||
if (advance_new && advance_old) {
|
||||
size_t old_ascend_count = tree_path_advance(old_path);
|
||||
size_t new_ascend_count = tree_path_advance(new_path);
|
||||
if (old_ascend_count > new_ascend_count) {
|
||||
tree_path_ascend(new_path, old_ascend_count - new_ascend_count);
|
||||
} else if (new_ascend_count > old_ascend_count) {
|
||||
tree_path_ascend(old_path, new_ascend_count - old_ascend_count);
|
||||
}
|
||||
} else if (advance_new) {
|
||||
size_t ascend_count = tree_path_advance(new_path);
|
||||
tree_path_ascend(old_path, ascend_count);
|
||||
} else if (advance_old) {
|
||||
size_t ascend_count = tree_path_advance(old_path);
|
||||
tree_path_ascend(new_path, ascend_count);
|
||||
}
|
||||
|
||||
if (is_different)
|
||||
push_change(results, position, next_position);
|
||||
position = next_position;
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
int ts_document_parse_and_get_changed_ranges(TSDocument *self, TSRange **ranges,
|
||||
size_t *range_count) {
|
||||
if (ranges)
|
||||
*ranges = NULL;
|
||||
if (range_count)
|
||||
*range_count = 0;
|
||||
if (ranges) *ranges = NULL;
|
||||
if (range_count) *range_count = 0;
|
||||
|
||||
if (!self->input.read || !self->parser.language)
|
||||
return -1;
|
||||
|
|
@ -312,14 +111,11 @@ int ts_document_parse_and_get_changed_ranges(TSDocument *self, TSRange **ranges,
|
|||
self->tree = tree;
|
||||
|
||||
if (ranges && range_count) {
|
||||
RangeArray result = { 0, 0, 0 };
|
||||
tree_path_init(&self->parser.tree_path1, old_tree);
|
||||
tree_path_init(&self->parser.tree_path2, tree);
|
||||
if (!ts_tree_get_changes(self, &self->parser.tree_path1,
|
||||
&self->parser.tree_path2, 0, &result))
|
||||
if (!tree_path_get_changes(&self->parser.tree_path1,
|
||||
&self->parser.tree_path2, ranges, range_count))
|
||||
return -1;
|
||||
*ranges = result.contents;
|
||||
*range_count = result.size;
|
||||
}
|
||||
|
||||
ts_tree_release(old_tree);
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue