Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: A simple tool for coverage tests
//
//=============================================================================
#ifndef VCOVER_H
#define VCOVER_H
#include "tier1/utlrbtree.h"
#include "vstdlib.h"
#if defined( _WIN32 )
#pragma once
#endif
class CVCoverage
{
public:
CVCoverage() :
m_bActive( false ),
m_depth( 0 ),
m_token( 1 )
{
}
bool IsActive() const
{
return m_bActive;
}
void SetActive( bool bActive )
{
Assert( bActive != m_bActive );
m_bActive = bActive;
if ( bActive )
++m_token;
}
void Begin()
{
++m_depth;
}
void End()
{
--m_depth;
}
void Reset()
{
m_locations.RemoveAll();
}
bool ShouldCover( unsigned token ) const
{
return ( m_bActive && m_depth > 0 && token != m_token );
}
unsigned Cover( const char *pszFile, int line )
{
Location_t location = { pszFile, line };
m_locations.Insert( location );
return m_token;
}
void Report()
{
for ( int i = m_locations.FirstInorder(); i != m_locations.InvalidIndex(); i = m_locations.NextInorder( i ) )
{
Msg( "%s(%d) :\n", m_locations[i].pszFile, m_locations[i].line );
}
}
private:
struct Location_t
{
const char *pszFile;
int line;
};
class CLocationLess
{
public:
CLocationLess( int ignored ) {}
bool operator!() { return false; }
bool operator()( const Location_t &lhs, const Location_t &rhs ) const
{
if ( lhs.line < rhs.line )
{
return true;
}
return CaselessStringLessThan( lhs.pszFile, rhs.pszFile );
}
};
bool m_bActive;
int m_depth;
unsigned m_token;
CUtlRBTree< Location_t, unsigned short, CLocationLess > m_locations;
};
VSTDLIB_INTERFACE CVCoverage g_VCoverage;
#ifdef VCOVER_ENABLED
#define VCOVER() \
do \
{ \
static token; \
if ( g_VCoverage.ShouldCover( token ) ) \
{ \
token = g_VCoverage.Cover( __FILE__, __LINE__ ); \
} \
} while( 0 )
#else
#define VCOVER() ((void)0)
#endif
#endif // VCOVER_H