Documentation

Implements BUILD_STRUCT (Opcode 0x62).

@details Pop n elements from the stack and wraps them in a VStruct. 1. Reads n (Int32). 2. Consumes n values. 3. Pushes VStruct.

Implements GET_STRUCT_FIELD (Opcode 0x63).

@details Reads a field index and retrieves the value from a Struct on the stack. 1. Reads index (Int32). 2. Pops struct (VStruct). 3. Pushes 'struct[index]'.

@throws Error if the popped value is not a VStruct or if index is out of bounds.

Implements ATTR_UPDATE (Opcode 0x64).

@details Updates a field in a structure. Because structures are immutable, this creates a shallow copy.

Stack Order: Top -> New Value Next -> Field Index (Int) Bottom -> Struct

Helper for instBuildStruct to manipulate the stack.

@args - vm: Current VM state - count: Number of fields in the struct