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vector_key_value.go
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/
vector_key_value.go
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// Copyright (c) 2022 Gobalsky Labs Limited
//
// Use of this software is governed by the Business Source License included
// in the LICENSE.VEGA file and at https://www.mariadb.com/bsl11.
//
// Change Date: 18 months from the later of the date of the first publicly
// available Distribution of this version of the repository, and 25 June 2022.
//
// On the date above, in accordance with the Business Source License, use
// of this software will be governed by version 3 or later of the GNU General
// Public License.
package statevar
import (
"code.vegaprotocol.io/vega/libs/num"
"code.vegaprotocol.io/vega/protos/vega"
)
type DecimalVector struct {
Val []num.Decimal
}
// Equals returns true of the other value is a vector of floating point values with the same shape and equals values.
func (dv *DecimalVector) Equals(other value) bool {
switch v := other.(type) {
case *DecimalVector:
return dv.equals(v)
default:
return false
}
}
// equals returns true if the two vectors are equal.
func (dv *DecimalVector) equals(other *DecimalVector) bool {
return dv.withinTolerance(other, num.DecimalZero())
}
// WithinTolerance returns true if the other value is a vector and has the same shape and values in the same index are within the given tolerance of each other.
func (dv *DecimalVector) WithinTolerance(other value, tolerance num.Decimal) bool {
switch v := other.(type) {
case *DecimalVector:
return dv.withinTolerance(v, tolerance)
default:
return false
}
}
// withinTolerance returns true if the two vectors have the same shape and values in the same index are within the given tolerance of each other.
func (dv *DecimalVector) withinTolerance(other *DecimalVector, tolerance num.Decimal) bool {
if len(dv.Val) != len(other.Val) {
return false
}
for i := range dv.Val {
// we probably don't need the tolerance on the tolerance check but for testing its useful
if dv.Val[i].Sub(other.Val[i]).Abs().GreaterThan(tolerance) {
return false
}
}
return true
}
// ToProto converts the state variable value to protobuf.
func (dv *DecimalVector) ToProto() *vega.StateVarValue {
values := make([]string, 0, len(dv.Val))
for _, v := range dv.Val {
values = append(values, v.String())
}
return &vega.StateVarValue{
Value: &vega.StateVarValue_VectorVal{
VectorVal: &vega.VectorValue{
Value: values,
},
},
}
}