C++ (Cpp) CodeGen::vmiSYS_CALL_ARGDAT Examples

Example #1

File: sysclass.cpp Project: Spicery/ginger

/*
	classConstructor( key )( arg1, ..., argN ) -> instance
*/
Ref * sysClassConstructor( Ref * pc, MachineClass *vm ) {
	if ( vm->count != 1 ) throw Ginger::Mishap( "Wrong number of arguments" );
	Ref kk = vm->fastPeek();
	if ( !IsObj( kk ) || *RefToPtr4( kk ) != sysClassKey ) throw Ginger::Mishap( "Key needed" );
	Ref * obj_K = RefToPtr4( kk );
	long n = SmallToLong( obj_K[ CLASS_OFFSET_NFIELDS ] );
	CodeGen codegen = vm->codegen();
	codegen->vmiFUNCTION( makeName( "new", obj_K[ CLASS_OFFSET_TITLE ]), n, 1 );
	//vmiCHECK_COUNT( codegen, n );
	codegen->vmiSYS_CALL_ARGDAT( sysargdatConstruct, kk, n );
	codegen->vmiSYS_RETURN();
	vm->fastPeek() = codegen->vmiENDFUNCTION();
	return pc;
}

Example #2

File: sysclass.cpp Project: Spicery/ginger

/*
	classAccessor( key, N:Small )( instance ) -> nth_field_of_instance
*/
Ref * sysClassAccessor( Ref * pc, MachineClass *vm ) {
	if ( vm->count != 2 ) throw Ginger::Mishap( "Wrong number of arguments" );
	Ref N = vm->fastPop();
	if ( !IsSmall( N ) ) throw Ginger::Mishap( "Integer index needed" );
	Ref kk = vm->fastPeek();
	if ( !isKey( kk ) ) throw Ginger::Mishap( "Key needed" );
	long nargs = SmallToLong( RefToPtr4( kk )[ CLASS_OFFSET_NFIELDS ] );
	long index = SmallToLong( N );
	if ( 1 <= index && index <= nargs ) {
		CodeGen codegen = vm->codegen();
		//	TODO: Figure out name.
		codegen->vmiFUNCTION( 1, 1 );
		codegen->vmiSYS_CALL_ARGDAT( sysargdatAccess, kk, index );
		codegen->vmiSYS_RETURN();
		vm->fastPeek() = codegen->vmiENDFUNCTION();
	} else {
		throw Ginger::Mishap( "ToBeDone" );
	}
	return pc;
}