42 	Value      Expression
43 	OrigValue  Expression
94 	Value    Expression
114 	Value    Expression
136 type Expression interface {  interface
139 	Copy() Expression
145 	Eval() Expression
152 func ExpressionsAreSame(a Expression, b Expression) (equal bool, err error) {  argument
158 func hackyExpressionsAreSame(a Expression, b Expression) (equal bool, err error) {  argument
174 func hackyFingerprint(expression Expression) (fingerprint []byte, err error) {  argument
213 	Args        [2]Expression
216 	Value       Expression
219 func (x *Operator) Copy() Expression {
226 func (x *Operator) Eval() Expression {
245 	Value   Expression
251 func (x *Variable) Copy() Expression {
256 func (x *Variable) Eval() Expression {
276 func (x *Map) Copy() Expression {
289 func (x *Map) Eval() Expression {
344 	Values    []Expression
350 func (x *List) Copy() Expression {
352 	ret.Values = make([]Expression, len(x.Values))
359 func (x *List) Eval() Expression {
382 func (x *String) Copy() Expression {
387 func (x *String) Eval() Expression {
408 func (x *Int64) Copy() Expression {
413 func (x *Int64) Eval() Expression {
434 func (x *Bool) Copy() Expression {
439 func (x *Bool) Eval() Expression {
526 func (n NotEvaluated) Copy() Expression {
538 func (n NotEvaluated) Eval() Expression {