void SemanticAnalyzer::append_block(CodeBlockPtr new_block) {
if (new_block != nullptr) {
// child of top block stack parent
this->block_stack->top()->append(new_block);
// parent is the top of the block stack
new_block->set_parent(this->block_stack->top());
// push this block to the stack top
this->block_stack->push(new_block);
// set this block's analyzer parent if null
new_block->set_analyzer(SemanticAnalyzerPtr(this));
}
}
