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Clean up stack breakdown function

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This commit is contained in:
Max Brunsfeld 2014-03-21 13:02:25 -07:00
parent bdbe69258a
commit 5869c1ea18
2 changed files with 19 additions and 14 deletions
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10
src/runtime/stack.c
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@ -49,6 +49,15 @@ void ts_stack_shrink(ts_stack *stack, size_t new_size) {
stack->size = new_size;
}
size_t ts_stack_right_position(const ts_stack *stack) {
size_t result = 0;
for (size_t i = 0; i < stack->size; i++) {
ts_tree *node = stack->entries[i].node;
result += node->offset + node->size;
}
return result;
}
ts_tree * ts_stack_reduce(ts_stack *stack, ts_symbol symbol, int child_count, const int *collapse_flags) {
size_t new_stack_size = stack->size - child_count;
@ -71,3 +80,4 @@ ts_tree * ts_stack_reduce(ts_stack *stack, ts_symbol symbol, int child_count, co
ts_stack_shrink(stack, new_stack_size);
return lookahead;
}