Add tree included ranges getter

Co-authored-by: Nathan Sobo <nathan@zed.dev>

lib/binding_rust/bindings.rs

@@ -345,6 +345,9 @@ extern "C" {
     #[doc = " Get the language that was used to parse the syntax tree."]
     pub fn ts_tree_language(arg1: *const TSTree) -> *const TSLanguage;
 }
+extern "C" {
+    pub fn ts_tree_included_ranges(arg1: *const TSTree, length: *mut u32) -> *mut TSRange;
+}
 extern "C" {
     #[doc = " Edit the syntax tree to keep it in sync with source code that has been"]
     #[doc = " edited."]

lib/binding_rust/lib.rs

@@ -763,6 +763,15 @@ impl Tree {
             util::CBufferIter::new(ptr, count as usize).map(|r| r.into())
         }
     }
+
+    pub fn included_ranges(&self) -> Vec<Range> {
+        let mut count = 0u32;
+        unsafe {
+            let ptr = ffi::ts_tree_included_ranges(self.0.as_ptr(), &mut count as *mut u32);
+            let ranges = Vec::from_raw_parts(ptr, count as usize, count as usize);
+            ranges.into_iter().map(|range| range.into()).collect()
+        }
+    }
 }
 
 impl fmt::Debug for Tree {

lib/include/tree_sitter/api.h

@@ -381,6 +381,8 @@ TSNode ts_tree_root_node_with_offset(
  */
 const TSLanguage *ts_tree_language(const TSTree *);
 
+TSRange *ts_tree_included_ranges(const TSTree *, uint32_t *length);
+
 /**
  * Edit the syntax tree to keep it in sync with source code that has been
  * edited.

lib/src/tree.c

@@ -85,6 +85,13 @@ void ts_tree_edit(TSTree *self, const TSInputEdit *edit) {
   ts_subtree_pool_delete(&pool);
 }
 
+TSRange *ts_tree_included_ranges(const TSTree *self, uint32_t *length) {
+  *length = self->included_range_count;
+  TSRange *ranges = ts_calloc(self->included_range_count, sizeof(TSRange));
+  memcpy(ranges, self->included_ranges, self->included_range_count * sizeof(TSRange));
+  return ranges;
+}
+
 TSRange *ts_tree_get_changed_ranges(const TSTree *self, const TSTree *other, uint32_t *count) {
   TreeCursor cursor1 = {NULL, array_new()};
   TreeCursor cursor2 = {NULL, array_new()};