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// Copyright 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package traits
import "github.com/google/cel-go/common/types/ref"
// Adder interface to support '+' operator overloads.
type Adder interface {
// Add returns a combination of the current value and other value.
//
// If the other value is an unsupported type, an error is returned.
Add(other ref.Val) ref.Val
}
// Divider interface to support '/' operator overloads.
type Divider interface {
// Divide returns the result of dividing the current value by the input
// denominator.
//
// A denominator value of zero results in an error.
Divide(denominator ref.Val) ref.Val
}
// Modder interface to support '%' operator overloads.
type Modder interface {
// Modulo returns the result of taking the modulus of the current value
// by the denominator.
//
// A denominator value of zero results in an error.
Modulo(denominator ref.Val) ref.Val
}
// Multiplier interface to support '*' operator overloads.
type Multiplier interface {
// Multiply returns the result of multiplying the current and input value.
Multiply(other ref.Val) ref.Val
}
// Negater interface to support unary '-' and '!' operator overloads.
type Negater interface {
// Negate returns the complement of the current value.
Negate() ref.Val
}
// Subtractor interface to support binary '-' operator overloads.
type Subtractor interface {
// Subtract returns the result of subtracting the input from the current
// value.
Subtract(subtrahend ref.Val) ref.Val
}
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