本文整理汇总了C++中ExprNode::SetIndex方法的典型用法代码示例。如果您正苦于以下问题：C++ ExprNode::SetIndex方法的具体用法？C++ ExprNode::SetIndex怎么用？C++ ExprNode::SetIndex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ExprNode的用法示例。
在下文中一共展示了ExprNode::SetIndex方法的1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: if
ExprNode* Parser :: ParseFactor(){
ExprNode *root = nullptr;
Token *token = scan.Get();
if(isEq(token, _SEPARATION, ";"))
return 0;
switch (token->Type){
case _INTEGER:
root = new IntNode(token);
break;
case _FLOAT:
root = new FloatNode(token);
break;
case _IDENTIFIER:
{
Symbol *sym = symStack->find_symbol(token->Value);
if(!sym && parsingFunc)
sym = parsingFunc->params->find_symbol(token->Value);
string exc = "Identifier \"" + token->Value + "\" not defined";
errorIf(!sym, exc.c_str(), token);
errorIf(!dynamic_cast<VarSymbol*>(sym) && !dynamic_cast<FuncSymbol*>(sym), "Unknown symbol", token);
errorIf(!sym, "Identifier is undefined", token);
root = new IdentifierNode(token, dynamic_cast<VarSymbol*>(sym));
if (dynamic_cast<PointerSymbol*>(sym->getType()))
root = new PointerNode(root);
if(isEq(scan.GetNext() ,_SEPARATION ,"("))
root = ParseFuncCall(root);
//scan.Next();
return root;
}
case _CHAR:
root = new CharNode(token);
break;
case _STRING:
root = new StringNode(token);
root->SetIndex(++index);
stringConsts.push_back(dynamic_cast<StringNode*>(root));
break;
case _KEYWORD:
{
string kw = token->Value;
if(kw == "printf" || kw == "scanf"){
errorIf( scan.GetNext()->Value != "(", "Open bracket expected", token);
scan.Next();
StringNode *format = dynamic_cast<StringNode*>(ParseExpr(priorityTable[","] + 1));
errorIf(!format, "Expected string format", token);
IONode *node = new IONode(dynamic_cast<Token*>(token), format);
if(scan.Get()->Value == ","){
scan.Next();
while(true){
ExprNode *arg = ParseExpr(priorityTable[","] + 1);
errorIf (!arg, "Argument expected", token);
node->addArg(arg);
if(scan.Get()->Value == ")")
break;
if(scan.Get()->Value == ",")
scan.Next();
}
}
scan.Next();
root = node;
}
else if(kw == "char" || kw == "int" || kw == "float"){
// scan.Next();
SymbolType* type = ParseType();
errorIf(isEq(scan.Get(), _SEPARATION, "("), "Expected open bracket '('", token);
scan.Next();
root = new CastNode(token, ParseExpr(), type);
// errorIf((isEq(scan.GetNext(), _SEPARATION, ")") && !scan.isEnd()), "Expected closing bracket", token);
}
else
throw MyException("You can use keywords just such as char, int and float in expressions");
}
break;
case _OPERATION:
if (token->Value == "*"){
scan.Next();
auto temp = ParseExpr(priorityTable["--"]);
// if (dynamic_cast<PointerNode*>(temp))
// root = dynamic_cast<PointerNode*>(temp)->name;
// root = temp;
// else
root = new PointerNode(temp);
}else
//.........这里部分代码省略.........