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Add unit test for stack

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- Also, fix bug where trees pushed onto the stack were not retained
This commit is contained in:
Max Brunsfeld 2014-06-03 13:19:49 -07:00
parent baec9f2c9a
commit 63cde3967c
7 changed files with 188 additions and 7 deletions
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6
src/runtime/stack.c
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@ -13,6 +13,11 @@ ts_stack ts_stack_make() {
return result;
}
void ts_stack_delete(ts_stack *stack) {
ts_stack_shrink(stack, 0);
free(stack->entries);
}
ts_state_id ts_stack_top_state(const ts_stack *stack) {
if (stack->size == 0) return INITIAL_STATE;
return stack->entries[stack->size - 1].state;
@ -27,6 +32,7 @@ void ts_stack_push(ts_stack *stack, ts_state_id state, ts_tree *node) {
stack->entries[stack->size].state = state;
stack->entries[stack->size].node = node;
stack->size++;
ts_tree_retain(node);
}
void ts_stack_shrink(ts_stack *stack, size_t new_size) {