Method GetLineNumber

sdk/angelscript/source/as_context.cpp:1907–1959

interface

// interface
int asCContext::GetLineNumber(asUINT stackLevel, int *column, const char **sectionName)
{
	if( stackLevel >= GetCallstackSize() ) return asINVALID_ARG;

	asCScriptFunction *func;
	asDWORD *bytePos;
	if( stackLevel == 0 )
	{
		func = m_currentFunction;
		if( func->scriptData == 0 ) return 0;
		bytePos = m_regs.programPointer;
	}
	else
	{
		asPWORD *s = m_callStack.AddressOf() + (GetCallstackSize()-stackLevel-1)*CALLSTACK_FRAME_SIZE;
		func = (asCScriptFunction*)s[1];
		if( func->scriptData == 0 ) return 0;
		bytePos = (asDWORD*)s[2];

		// Subract 1 from the bytePos, because we want the line where
		// the call was made, and not the instruction after the call
		bytePos -= 1;
	}

	// For nested calls it is possible that func is null
	if( func == 0 )
	{
		if( column ) *column = 0;
		if( sectionName ) *sectionName = 0;
		return 0;
	}

	if (bytePos == 0)
	{
		// If the context has been Prepared but Execute hasn't been called yet the 
		// programPointer will be zero. In this case simply use the address of the 
		// bytecode as starting point
		bytePos = func->scriptData->byteCode.AddressOf();
	}

	int sectionIdx;
	asDWORD line = func->GetLineNumber(int(bytePos - func->scriptData->byteCode.AddressOf()), &sectionIdx);
	if( column ) *column = (line >> 20);
	if( sectionName )
	{
		asASSERT( sectionIdx < int(m_engine->scriptSectionNames.GetLength()) );
		if( sectionIdx >= 0 && asUINT(sectionIdx) < m_engine->scriptSectionNames.GetLength() )
			*sectionName = m_engine->scriptSectionNames[sectionIdx]->AddressOf();
		else
			*sectionName = 0;
	}
	return (line & 0xFFFFF);
}

// internal
bool asCContext::ReserveStackSpace(asUINT size)