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Devirtualize ~parser<T> by making it protected in base classes and making derived classes final

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These objects are never owned/destroyed polymorphically, so there's no
need for a virtual dtor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231221 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
David Blaikie 2015-03-04 07:29:01 +00:00
parent dcc67016a3
commit ca12616ca8
1 changed files with 15 additions and 10 deletions
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25
include/llvm/Support/CommandLine.h
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@ -714,7 +714,6 @@ class basic_parser_impl { // non-template implementation of basic_parser<t>
public:
basic_parser_impl(Option &O) {}
virtual ~basic_parser_impl() {}
enum ValueExpected getValueExpectedFlagDefault() const {
return ValueRequired;
@ -743,6 +742,7 @@ public:
virtual void anchor();
protected:
~basic_parser_impl() = default;
// A helper for basic_parser::printOptionDiff.
void printOptionName(const Option &O, size_t GlobalWidth) const;
};
@ -755,12 +755,15 @@ public:
basic_parser(Option &O) : basic_parser_impl(O) {}
typedef DataType parser_data_type;
typedef OptionValue<DataType> OptVal;
protected:
~basic_parser() = default;
};
//--------------------------------------------------
// parser<bool>
//
template <> class parser<bool> : public basic_parser<bool> {
template <> class parser<bool> final : public basic_parser<bool> {
public:
parser(Option &O) : basic_parser(O) {}
@ -787,7 +790,8 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<bool>);
//--------------------------------------------------
// parser<boolOrDefault>
template <> class parser<boolOrDefault> : public basic_parser<boolOrDefault> {
template <>
class parser<boolOrDefault> final : public basic_parser<boolOrDefault> {
public:
parser(Option &O) : basic_parser(O) {}
@ -813,7 +817,7 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<boolOrDefault>);
//--------------------------------------------------
// parser<int>
//
template <> class parser<int> : public basic_parser<int> {
template <> class parser<int> final : public basic_parser<int> {
public:
parser(Option &O) : basic_parser(O) {}
@ -835,7 +839,7 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<int>);
//--------------------------------------------------
// parser<unsigned>
//
template <> class parser<unsigned> : public basic_parser<unsigned> {
template <> class parser<unsigned> final : public basic_parser<unsigned> {
public:
parser(Option &O) : basic_parser(O) {}
@ -858,7 +862,8 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<unsigned>);
// parser<unsigned long long>
//
template <>
class parser<unsigned long long> : public basic_parser<unsigned long long> {
class parser<unsigned long long> final
: public basic_parser<unsigned long long> {
public:
parser(Option &O) : basic_parser(O) {}
@ -881,7 +886,7 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<unsigned long long>);
//--------------------------------------------------
// parser<double>
//
template <> class parser<double> : public basic_parser<double> {
template <> class parser<double> final : public basic_parser<double> {
public:
parser(Option &O) : basic_parser(O) {}
@ -903,7 +908,7 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<double>);
//--------------------------------------------------
// parser<float>
//
template <> class parser<float> : public basic_parser<float> {
template <> class parser<float> final : public basic_parser<float> {
public:
parser(Option &O) : basic_parser(O) {}
@ -925,7 +930,7 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<float>);
//--------------------------------------------------
// parser<std::string>
//
template <> class parser<std::string> : public basic_parser<std::string> {
template <> class parser<std::string> final : public basic_parser<std::string> {
public:
parser(Option &O) : basic_parser(O) {}
@ -950,7 +955,7 @@ EXTERN_TEMPLATE_INSTANTIATION(class basic_parser<std::string>);
//--------------------------------------------------
// parser<char>
//
template <> class parser<char> : public basic_parser<char> {
template <> class parser<char> final : public basic_parser<char> {
public:
parser(Option &O) : basic_parser(O) {}