42 	Value      Expression
43 	OrigValue  Expression
94 	Value    Expression
113 type Expression interface {  interface
116 	Copy() Expression
122 	Eval() Expression
129 func ExpressionsAreSame(a Expression, b Expression) (equal bool, err error) {  argument
135 func hackyExpressionsAreSame(a Expression, b Expression) (equal bool, err error) {  argument
151 func hackyFingerprint(expression Expression) (fingerprint []byte, err error) {  argument
190 	Args        [2]Expression
193 	Value       Expression
196 func (x *Operator) Copy() Expression {
203 func (x *Operator) Eval() Expression {
222 	Value   Expression
228 func (x *Variable) Copy() Expression {
233 func (x *Variable) Eval() Expression {
252 func (x *Map) Copy() Expression {
261 func (x *Map) Eval() Expression {
304 	Values    []Expression
310 func (x *List) Copy() Expression {
312 	ret.Values = make([]Expression, len(x.Values))
319 func (x *List) Eval() Expression {
342 func (x *String) Copy() Expression {
347 func (x *String) Eval() Expression {
368 func (x *Int64) Copy() Expression {
373 func (x *Int64) Eval() Expression {
394 func (x *Bool) Copy() Expression {
399 func (x *Bool) Eval() Expression {
486 func (n NotEvaluated) Copy() Expression {
498 func (n NotEvaluated) Eval() Expression {