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Add function for popping all nodes from the stack

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This commit is contained in:
Max Brunsfeld 2016-04-04 11:44:45 -07:00
parent 267092940d
commit 2f3e92c9be
3 changed files with 18 additions and 26 deletions
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9
src/runtime/stack.c
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@ -515,6 +515,15 @@ void ts_stack_clear(Stack *self) {
array_push(&self->heads, self->base_node);
}
TreeArray ts_stack_pop_all(Stack *self, int head_index) {
StackPopResult pop = ts_stack_pop_count(self, head_index, -1);
if (pop.status != StackPopSucceeded)
return (TreeArray)array_new();
assert(pop.slices.size == 1);
assert(pop.slices.contents[0].head_index == head_index);
return pop.slices.contents[0].trees;
}
void ts_stack_set_tree_selection_callback(Stack *self, void *payload,
TreeSelectionFunction function) {
self->tree_selection_payload = payload;