本文整理汇总了C++中Expression::getExpressionType方法的典型用法代码示例。如果您正苦于以下问题：C++ Expression::getExpressionType方法的具体用法？C++ Expression::getExpressionType怎么用？C++ Expression::getExpressionType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Expression的用法示例。
在下文中一共展示了Expression::getExpressionType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: visit
void ExpressionChecker::visit( BinaryExpression *exp )
{
Expression *left = exp->getLeftExpression();
Expression *right = exp->getRightExpression();
visit_and_check(left);
visit_and_check(right);
ExpressionType leftType = left->getExpressionType();
ExpressionType rightType = right->getExpressionType();
if (leftType != rightType) {
error = left->getText() + " and " + right->getText() +
" must have the same type\n" +
left->getText() + " has type " + leftType + ", " +
right->getText() + " has type " + rightType;
return;
}
ExpressionOperator op = exp->getOperator();
// by now we already checked that subexpressions have the same type
if (isBooleanOp(op)) {
if (leftType != BOOL_TYPE) {
not_boolean(left->getText());
}
exp->setExpressionType( BOOL_TYPE );
} else if (isRelativeOp(op)) {
if (leftType == BOOL_TYPE) {
set_error(op + " cannot act on boolean expressions " + left->getText() +
" and " + right->getText());
}
exp->setExpressionType( BOOL_TYPE );
} else if (isExactCompareOp(op)) {
// equal works for any type and we have already checked
// that the two subexpressions have the same type
exp->setExpressionType( BOOL_TYPE );
}
// otherwise the type is still no type
}