79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
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package q
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import (
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"go/constant"
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"go/token"
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"reflect"
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"strconv"
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)
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func compare(a, b interface{}, tok token.Token) bool {
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vala := reflect.ValueOf(a)
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valb := reflect.ValueOf(b)
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ak := vala.Kind()
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bk := valb.Kind()
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switch {
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// comparing nil values
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case (ak == reflect.Ptr || ak == reflect.Slice || ak == reflect.Interface || ak == reflect.Invalid) &&
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(bk == reflect.Ptr || ak == reflect.Slice || bk == reflect.Interface || bk == reflect.Invalid) &&
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(!vala.IsValid() || vala.IsNil()) && (!valb.IsValid() || valb.IsNil()):
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return true
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case ak >= reflect.Int && ak <= reflect.Int64:
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if bk >= reflect.Int && bk <= reflect.Int64 {
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return constant.Compare(constant.MakeInt64(vala.Int()), tok, constant.MakeInt64(valb.Int()))
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}
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if bk == reflect.Float32 || bk == reflect.Float64 {
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return constant.Compare(constant.MakeFloat64(float64(vala.Int())), tok, constant.MakeFloat64(valb.Float()))
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}
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if bk == reflect.String {
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bla, err := strconv.ParseFloat(valb.String(), 64)
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if err != nil {
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return false
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}
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return constant.Compare(constant.MakeFloat64(float64(vala.Int())), tok, constant.MakeFloat64(bla))
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}
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case ak == reflect.Float32 || ak == reflect.Float64:
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if bk == reflect.Float32 || bk == reflect.Float64 {
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return constant.Compare(constant.MakeFloat64(vala.Float()), tok, constant.MakeFloat64(valb.Float()))
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}
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if bk >= reflect.Int && bk <= reflect.Int64 {
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return constant.Compare(constant.MakeFloat64(vala.Float()), tok, constant.MakeFloat64(float64(valb.Int())))
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}
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if bk == reflect.String {
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bla, err := strconv.ParseFloat(valb.String(), 64)
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if err != nil {
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return false
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}
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return constant.Compare(constant.MakeFloat64(vala.Float()), tok, constant.MakeFloat64(bla))
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}
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case ak == reflect.String:
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if bk == reflect.String {
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return constant.Compare(constant.MakeString(vala.String()), tok, constant.MakeString(valb.String()))
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}
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}
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if reflect.TypeOf(a).String() == "time.Time" && reflect.TypeOf(b).String() == "time.Time" {
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var x, y int64
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x = 1
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if vala.MethodByName("Equal").Call([]reflect.Value{valb})[0].Bool() {
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y = 1
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} else if vala.MethodByName("Before").Call([]reflect.Value{valb})[0].Bool() {
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y = 2
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}
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return constant.Compare(constant.MakeInt64(x), tok, constant.MakeInt64(y))
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}
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if tok == token.EQL {
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return reflect.DeepEqual(a, b)
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}
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return false
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}
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