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package objects
import (
"time"
"github.com/d5/tengo/compiler/token"
)
// Time represents a time value.
type Time struct {
Value time.Time
}
func (o *Time) String() string {
return o.Value.String()
}
// TypeName returns the name of the type.
func (o *Time) TypeName() string {
return "time"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (o *Time) BinaryOp(op token.Token, rhs Object) (Object, error) {
switch rhs := rhs.(type) {
case *Int:
switch op {
case token.Add: // time + int => time
if rhs.Value == 0 {
return o, nil
}
return &Time{Value: o.Value.Add(time.Duration(rhs.Value))}, nil
case token.Sub: // time - int => time
if rhs.Value == 0 {
return o, nil
}
return &Time{Value: o.Value.Add(time.Duration(-rhs.Value))}, nil
}
case *Time:
switch op {
case token.Sub: // time - time => int (duration)
return &Int{Value: int64(o.Value.Sub(rhs.Value))}, nil
case token.Less: // time < time => bool
if o.Value.Before(rhs.Value) {
return TrueValue, nil
}
return FalseValue, nil
case token.Greater:
if o.Value.After(rhs.Value) {
return TrueValue, nil
}
return FalseValue, nil
case token.LessEq:
if o.Value.Equal(rhs.Value) || o.Value.Before(rhs.Value) {
return TrueValue, nil
}
return FalseValue, nil
case token.GreaterEq:
if o.Value.Equal(rhs.Value) || o.Value.After(rhs.Value) {
return TrueValue, nil
}
return FalseValue, nil
}
}
return nil, ErrInvalidOperator
}
// Copy returns a copy of the type.
func (o *Time) Copy() Object {
return &Time{Value: o.Value}
}
// IsFalsy returns true if the value of the type is falsy.
func (o *Time) IsFalsy() bool {
return o.Value.IsZero()
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (o *Time) Equals(x Object) bool {
t, ok := x.(*Time)
if !ok {
return false
}
return o.Value.Equal(t.Value)
}
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