本文整理汇总了C++中CAstStatement::ToTac方法的典型用法代码示例。如果您正苦于以下问题：C++ CAstStatement::ToTac方法的具体用法？C++ CAstStatement::ToTac怎么用？C++ CAstStatement::ToTac使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CAstStatement的用法示例。
在下文中一共展示了CAstStatement::ToTac方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ToTac
CTacAddr* CAstStatIf::ToTac(CCodeBlock *cb, CTacLabel *next)
{
CTacLabel* truelabel = cb->CreateLabel("if_true"); // true label
CTacLabel* falselabel = cb->CreateLabel("if_false"); // false label
_cond->ToTac(cb, truelabel, falselabel); // calculate condition
CAstStatement *s = _ifBody;
cb->AddInstr(truelabel); // install true label
while(s != NULL) { // TAC of ifBody
CTacLabel* tempnext = cb->CreateLabel();
s->ToTac(cb, tempnext);
cb->AddInstr(tempnext);
s = s->GetNext();
}
cb->AddInstr(new CTacInstr(opGoto, next)); // skip to next
s = _elseBody;
cb->AddInstr(falselabel); // install false label
while(s != NULL) { // TAC of elseBody
CTacLabel* tempnext = cb->CreateLabel();
s->ToTac(cb, tempnext);
cb->AddInstr(tempnext);
s = s->GetNext();
}
cb->AddInstr(new CTacInstr(opGoto, next)); // goto next
return NULL;
}示例2: ToTac
CTacAddr* CAstStatWhile::ToTac(CCodeBlock *cb, CTacLabel *next)
{
assert(cb != NULL && next != NULL);
CAstExpression *cond = GetCondition();
CAstStatement *body = GetBody();
CTacLabel *while_cond = cb->CreateLabel("while_cond");
CTacLabel *c_true = cb->CreateLabel("while_body");
// while condition begins
cb->AddInstr(while_cond);
CTacAddr *tCond = cond->ToTac(cb, c_true, next);
if(dynamic_cast<CAstDesignator*>(cond)) { // if cond is a single boolean
cb->AddInstr(new CTacInstr(opEqual, c_true, tCond, new CTacConst(1)));
cb->AddInstr(new CTacInstr(opGoto, next));
}
// while body starts..
cb->AddInstr(c_true);
while(body) {
CTacLabel *while_next = cb->CreateLabel("while_next");
body->ToTac(cb, while_next);
cb->AddInstr(while_next);
body = body->GetNext();
}
cb->AddInstr(new CTacInstr(opGoto, while_cond));
return NULL;
}