melrōse musical expression player

package calc import ( "fmt" "github.com/emicklei/melrose/core" "github.com/emicklei/melrose/op" ) type Add struct { Left any Right any } func (a Add) S() core.Sequence { ls, ok := a.Left.(core.Sequenceable) if !ok { return core.EmptySequence } rs, ok := a.Right.(core.Sequenceable) if !ok { return core.EmptySequence } return op.Join{ Target: []core.Sequenceable{ls, rs}, }.S() } func (a Add) Storex() string { return fmt.Sprintf("%s + %s", core.Storex(a.Left), core.Storex(a.Right)) } func (a Add) Value() any { isFloatOp := false if _, ok := a.Left.(float64); ok { isFloatOp = true } if _, ok := a.Right.(float64); ok { isFloatOp = true } if isFloatOp { l, _ := resolveFloatWithInt(a.Left) r, _ := resolveFloatWithInt(a.Right) return l + r } // integer op l, ok := resolveInt(a.Left) if !ok { l = 0 } r, ok := resolveInt(a.Right) if !ok { r = 0 } return l + r }