melrōse musical expression player

package core import "fmt" type Iterator struct { index int name string Target []any } // VariableName is part of NameAware func (i *Iterator) VariableName(n string) { i.name = n } // Value is part of HasValue func (i *Iterator) Value() any { if len(i.Target) == 0 { return nil } return i.Target[i.index] } // Index returns the current index of the iterator as a HasValue ; 1-based func (i *Iterator) Index() HasValue { return ValueFunction{ StoreString: fmt.Sprintf("%s.Index()", i.name), Function: func() any { return i.getindex() + 1 }} } func (i *Iterator) getindex() int { return i.index } // S is part of Sequenceable func (i *Iterator) S() Sequence { if len(i.Target) == 0 { return EmptySequence } v := i.Target[i.index] if s, ok := v.(Sequenceable); ok { return s.S() } return EmptySequence } // Next is part of Nextable func (i *Iterator) Next() any { // TODO return value needed? if len(i.Target) == 0 { return nil } if i.index+1 == len(i.Target) { i.index = 0 } else { i.index++ } return i.Value() } // Storex is part of Storable func (i Iterator) Storex() string { return fmt.Sprintf("iterator(%v)", i.Target) } // Inspect is part of Inspectable func (i Iterator) Inspect(in Inspection) { in.Properties["index"] = i.index + 1 in.Properties["value"] = i.Value() in.Properties["length"] = len(i.Target) }