private void EmitMakeRefOperator(BoundMakeRefOperator expression, bool used)
{
// push address of variable
// mkrefany [Type] -- takes address off stack, puts TypedReference on stack
var temp = EmitAddress(expression.Operand, AddressKind.Writeable);
Debug.Assert(temp == null, "makeref should not create temps");
_builder.EmitOpCode(ILOpCode.Mkrefany);
EmitSymbolToken(expression.Operand.Type, expression.Operand.Syntax);
EmitPopIfUnused(used);
}
public override BoundNode VisitMakeRefOperator(BoundMakeRefOperator node)
{
// The __makeref(x) operator is logically like calling a method
// static TypedReference MakeReference(ref T x)
var rewrittenOperand = VisitExpression(node.Operand, ExprContext.Address);
return node.Update(rewrittenOperand, node.Type);
}
public override BoundNode VisitMakeRefOperator(BoundMakeRefOperator node)
{
throw ExceptionUtilities.Unreachable;
}
public override BoundNode VisitMakeRefOperator(BoundMakeRefOperator node)
{
if (_inExpressionLambda)
{
Error(ErrorCode.ERR_FeatureNotValidInExpressionTree, node, "__makeref");
}
return base.VisitMakeRefOperator(node);
}
internal void Parse(BoundMakeRefOperator boundMakeRefOperator)
{
base.Parse(boundMakeRefOperator);
this.Operand = Deserialize(boundMakeRefOperator.Operand) as Expression;
}
private void EmitMakeRefOperator(BoundMakeRefOperator expression, bool used)
{
// push address of variable
// mkrefany [Type] -- takes address off stack, puts TypedReference on stack
EmitAddress(expression.Operand, AddressKind.Writeable);
builder.EmitOpCode(ILOpCode.Mkrefany);
EmitSymbolToken(expression.Operand.Type, expression.Operand.Syntax);
EmitPopIfUnused(used);
}
public override object VisitMakeRefOperator(BoundMakeRefOperator node, object arg)
{
return Unimplemented(node, "ref");
}
public override object VisitMakeRefOperator(BoundMakeRefOperator node, object arg)
{
return(Unimplemented(node, "ref"));
}
