53 lines
835 B
Go
53 lines
835 B
Go
package objects
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import (
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"fmt"
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"github.com/d5/tengo/token"
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)
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type String struct {
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Value string
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}
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func (o *String) TypeName() string {
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return "string"
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}
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func (o *String) String() string {
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return fmt.Sprintf("%q", o.Value)
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}
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func (o *String) BinaryOp(op token.Token, rhs Object) (Object, error) {
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switch rhs := rhs.(type) {
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case *String:
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switch op {
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case token.Add:
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return &String{Value: o.Value + rhs.Value}, nil
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}
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case *Char:
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switch op {
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case token.Add:
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return &String{Value: o.Value + string(rhs.Value)}, nil
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}
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}
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return nil, ErrInvalidOperator
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}
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func (o *String) IsFalsy() bool {
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return len(o.Value) == 0
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}
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func (o *String) Copy() Object {
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return &String{Value: o.Value}
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}
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func (o *String) Equals(x Object) bool {
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t, ok := x.(*String)
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if !ok {
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return false
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}
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return o.Value == t.Value
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}
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