public static void EmitMarshalAction(CodeBlockBuilder codeBlock, Generation.AssignAction action, Action <ExpressionBuilder> targetExpression)
{
switch (action.Type)
{
case AssignActionType.Assign:
codeBlock.EmitAssignment(targetExpression, action.ValueExpression);
break;
case AssignActionType.Alloc:
if (action.LengthExpression != null)
{
codeBlock.EmitAssignment(targetExpression,
Cast(action.MemberType + "*", StaticCall("Interop.HeapUtil", $"Allocate<{action.MemberType}>", action.LengthExpression)));
}
else
{
codeBlock.EmitAssignment(targetExpression,
Cast(action.MemberType + "*", StaticCall("Interop.HeapUtil", $"Allocate<{action.MemberType}>")));
}
break;
case AssignActionType.AllocAndAssign:
codeBlock.EmitAssignment(targetExpression,
Cast(action.MemberType + "*", StaticCall("Interop.HeapUtil", $"Allocate<{action.MemberType}>")));
codeBlock.EmitAssignment(Deref(targetExpression), action.ValueExpression);
break;
case AssignActionType.MarshalToAddressOf:
codeBlock.EmitCall(action.ValueExpression, "MarshalTo", AddressOf(targetExpression));
break;
case AssignActionType.MarshalTo:
codeBlock.EmitAssignment(targetExpression,
Cast(action.MemberType + "*", StaticCall("Interop.HeapUtil", $"Allocate<{action.MemberType}>")));
codeBlock.EmitCall(action.ValueExpression, "MarshalTo", targetExpression);
break;
case AssignActionType.MarshalFrom:
codeBlock.EmitAssignment(targetExpression,
StaticCall(action.MemberType, "MarshalFrom", action.ValueExpression));
break;
case AssignActionType.MarshalFromAddressOf:
codeBlock.EmitAssignment(targetExpression,
StaticCall(action.MemberType, "MarshalFrom", AddressOf(action.ValueExpression)));
break;
case AssignActionType.FixedLengthMarshalTo:
codeBlock.EmitStaticCall("Interop.HeapUtil", "MarshalTo", action.ValueExpression, action.LengthExpression, targetExpression);
break;
}
}