forked from TrueCloudLab/neoneo-go
ddd1d92ff1
The idea here is to preserve the history of `dev` branch development and its code when merging with the `master`. Later this code could be moved into the masters code where appropriate.
732 B
732 B
VM - Stack
- How do i implement a new StackItem?
Answer: You add it's type to the Item interface, then you implement the default return method on the abstract stack item, this should be the behaviour of the stack item, if it is not the new type. Then you embed the abstract item in the new struct and override the method.
For example, If I wanted to add a new type called HashMap
type Item interface{ HashMap()(*HashMap, error) }
func (a *abstractItem) HashMap() (*HashMap, error) { return nil, errors.New(This stack item is not a hashmap) }
type HashMap struct { *abstractItem // Variables needed for hashmap }
func (h *HashMap) HashMap()(*HashMap, error) { // logic to override default behaviour }