OT Bytecode Attributes/OTClassFlags

Attribute OTClassFlags

Intent

The OTClassFlags attribute is used to store various properties of OT classes.

Location:

A team class or a role type.

Content:

An integer encoding the OT specific class flags (see Format).

Format:

   CallinFlags {
     u2 attribute_name_index;
     u4 attribute_length;
     u2 class_flags;
    }

The items of the OTClassFlags structure are as follows:

• attribute_name_index

The constant_pool entry at that index must be a CONSTANT_Utf8_info representing the string "CallinRoleBaseBindings".

• attribute_length

The value of the attribute_length item indicates the length of the attribute, excluding the initial six bytes.

• class_flags

The value of the class_flags item is a mask of flags. The interpretation of each flag, when set, is as shown in the following:

Flag Name	Value	Interpretation
OT_CLASS_TEAM	1	this class is a team
OT_CLASS_ROLE	2	this class is a role
OT_CLASS_ROLE_LOCAL	4	this is a local class nested within a role
OT_CLASS_PURELY_COPIED	8	no source present for this class
OT_CLASS_ROLE_FILE	16	this role was compiled from a separate source file ("role file")
OT_CLASS_FLAG_HAS_TSUPER	32	this role overrides a role from the super team
OT_CLASS_CONFINED	64	superclass Object should be updated to __OT__Confined on loading