Added structs to declare typedefs for various exception policies.

git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@1012 7ec92016-0320-0410-acc4-a06ded1c099a
This commit is contained in:
rich_sposato 2009-03-31 21:56:08 +00:00
parent 433534f136
commit e35ba7770e
2 changed files with 130 additions and 58 deletions

View file

@ -92,16 +92,11 @@ private:
/// This can be used to validate pre-conditions and post-conditions.
bool IsValidFull( void ) const;
// These lines show how to declare checkers for non-static functions in a host class.
typedef ::Loki::ContractChecker< Thingy, ::Loki::CheckForNoThrow > CheckForNoThrow;
typedef ::Loki::ContractChecker< Thingy, ::Loki::CheckForNoChangeOrThrow > CheckForNoChangeOrThrow;
typedef ::Loki::ContractChecker< Thingy, ::Loki::CheckForNoChange > CheckForNoChange;
typedef ::Loki::ContractChecker< Thingy, ::Loki::CheckForEquality > CheckForEquality;
typedef ::Loki::ContractChecker< Thingy, ::Loki::CheckForNothing > CheckInvariants;
// This shows how to declare checkers for non-static functions in a host class.
typedef ::Loki::CheckFor< Thingy > CheckFor;
// These lines show how to declare checkers for static functions of a host class.
typedef ::Loki::StaticChecker< ::Loki::CheckStaticForNoThrow > CheckStaticForNoThrow;
typedef ::Loki::StaticChecker< ::Loki::CheckStaticForNothing > CheckStaticInvariants;
// This shows how to declare checkers for static functions of a host class.
typedef ::Loki::CheckStaticFor CheckStaticFor;
typedef ::std::vector< unsigned int > IntBlock;
@ -120,7 +115,7 @@ unsigned int Thingy::s_value = 10;
// This example shows how static functions can use a no-throw checkers.
void Thingy::ChangeThat( void )
{
CheckStaticForNoThrow checker( &Thingy::StaticIsValid );
CheckStaticFor::NoThrow checker( &Thingy::StaticIsValid );
(void)checker;
s_value--;
}
@ -130,7 +125,7 @@ void Thingy::ChangeThat( void )
// This example shows how static functions can use an invariant checker.
unsigned int Thingy::GetThat( void )
{
CheckStaticInvariants checker( &Thingy::StaticIsValid );
CheckStaticFor::Invariants checker( &Thingy::StaticIsValid );
(void)checker;
return s_value;
}
@ -142,7 +137,7 @@ Thingy::Thingy( unsigned int value ) :
m_value( value ),
m_counts()
{
CheckInvariants checker( this, &Thingy::IsValid );
CheckFor::Invariants checker( this, &Thingy::IsValid );
(void)checker;
}
@ -152,7 +147,7 @@ Thingy::Thingy( const Thingy & that ) :
m_value( that.m_value ),
m_counts( that.m_counts )
{
CheckInvariants checker( this, &Thingy::IsValid );
CheckFor::Invariants checker( this, &Thingy::IsValid );
(void)checker;
}
@ -160,7 +155,7 @@ Thingy::Thingy( const Thingy & that ) :
Thingy & Thingy::operator = ( const Thingy & that )
{
CheckInvariants checker( this, &Thingy::IsValid );
CheckFor::Invariants checker( this, &Thingy::IsValid );
(void)checker;
if ( &that != this )
{
@ -184,9 +179,9 @@ Thingy::~Thingy( void )
// A swap function gets 2 checkers - one for this, and another for that.
void Thingy::Swap( Thingy & that )
{
CheckInvariants checker1( this, &Thingy::IsValid );
CheckFor::Invariants checker1( this, &Thingy::IsValid );
(void)checker1;
CheckInvariants checker2( &that, &Thingy::IsValid );
CheckFor::Invariants checker2( &that, &Thingy::IsValid );
(void)checker2;
const IntBlock counts( m_counts );
@ -216,7 +211,7 @@ void Thingy::DoSomethingEvil( void )
// This example shows how to use the no-throw checker.
unsigned int Thingy::GetValue( void ) const
{
CheckForNoThrow checker( this, &Thingy::IsValid );
CheckFor::NoThrow checker( this, &Thingy::IsValid );
(void)checker;
return m_value;
}
@ -226,7 +221,7 @@ unsigned int Thingy::GetValue( void ) const
// This example shows how to use the equality checker.
unsigned int Thingy::DoSomething( bool doThrow ) const
{
CheckForEquality checker( this, &Thingy::IsValid );
CheckFor::Equality checker( this, &Thingy::IsValid );
(void)checker;
if ( doThrow )
throw ::std::logic_error( "Test Exception." );
@ -238,7 +233,7 @@ unsigned int Thingy::DoSomething( bool doThrow ) const
// This example shows how to use the no-change checker.
void Thingy::DoSomethingElse( void ) const
{
CheckForNoChange checker( this, &Thingy::IsValid );
CheckFor::NoChange checker( this, &Thingy::IsValid );
(void)checker;
}
@ -250,7 +245,7 @@ void Thingy::AddCount( unsigned int count )
// but does not need to check pre-conditions, so it passes in a nullptr for
// the pre-condition validator. Ths post-condition validator just makes sure
// the container has at least 1 element.
CheckInvariants checker( this, &Thingy::IsValid, nullptr, &Thingy::IsValidFull );
CheckFor::Invariants checker( this, &Thingy::IsValid, nullptr, &Thingy::IsValidFull );
m_counts.push_back( count );
}
@ -261,7 +256,7 @@ unsigned int Thingy::GetCount( unsigned int index ) const
// This function's checker cares about class invariants and both the pre- and
// post-conditions, so it passes in pointers for all 3 validators. The pre-
// and post-conditions are both about making sure the container is not empty.
CheckForNoChangeOrThrow checker( this, &Thingy::IsValid, &Thingy::IsValidFull, &Thingy::IsValidFull );
CheckFor::NoChangeOrThrow checker( this, &Thingy::IsValid, &Thingy::IsValidFull, &Thingy::IsValidFull );
if ( m_counts.size() <= index )
return 0;
const unsigned int count = m_counts[ index ];
@ -276,7 +271,7 @@ void Thingy::ClearCounts( void )
// but does not need to check pre-conditions, so it passes in a nullptr for
// the pre-condition validator. Ths post-condition validator just makes sure
// the container has no elements.
CheckForNoThrow checker( this, &Thingy::IsValid, nullptr, &Thingy::IsValidEmpty );
CheckFor::NoThrow checker( this, &Thingy::IsValid, nullptr, &Thingy::IsValidEmpty );
m_counts.clear();
}
@ -328,16 +323,10 @@ bool AllIsValid( void )
// ----------------------------------------------------------------------------
// These lines show how to declare checkers for standalone functions.
typedef ::Loki::StaticChecker< ::Loki::CheckStaticForNoThrow > CheckStaticForNoThrow;
typedef ::Loki::StaticChecker< ::Loki::CheckStaticForNothing > CheckStaticInvariants;
// ----------------------------------------------------------------------------
void DoSomething( void )
{
// This example shows how to use a checker in a stand-alone function.
CheckStaticForNoThrow checker( &AllIsValid );
::Loki::CheckStaticFor::NoThrow checker( &AllIsValid );
(void)checker;
Thingy::ChangeThat();
}
@ -355,6 +344,8 @@ void ThrowTest( void )
int main( unsigned int argc, const char * const argv[] )
{
(void)argc;
(void)argv;
try
{
cout << "Just before call to ThrowTest." << endl;