ImplementsOp

[...interfaces, count, class] → []

• Action Code: 0x2c
• Stack: 2+ → 0
• SWF version: 7

Does something like class.__implementedInterfaces = interfaces.

Adobe documentation

ActionImplementsOp

ActionImplementsOp implements the ActionScript implements keyword. The ActionImplementsOp action specifies the interfaces that a class implements, for use by ActionCastOp. ActionImplementsOp can also specify the interfaces that an interface implements, as interfaces can extend other interfaces.

Field	Type	Comment
ActionImplementsOp	ACTIONRECORDHEADER	ActionCode = 0x2C

ActionImplementsOp does the following:

1. Pops the constructor function off the stack. The constructor function represents the class that will implement the interfaces. The constructor function must have a prototype property.
2. Pops the count of implemented interfaces off the stack.
3. For each interface count, pops a constructor function off of the stack. The constructor function represents an interface.
4. Sets the constructor function’s list of interfaces to the array collected in the previous step, and sets the count of interfaces to the count popped in step 2.