// Copyright 2021 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.

package placement

import (
	"errors"
)

var (
	// ErrInvalidConstraintFormat is from constraint.go.
	ErrInvalidConstraintFormat = errors.New("label constraint should be in format '{+|-}key=value'")
	// ErrUnsupportedConstraint is from constraint.go.
	ErrUnsupportedConstraint = errors.New("unsupported label constraint")
	// ErrConflictingConstraints is from constraints.go.
	ErrConflictingConstraints = errors.New("conflicting label constraints")
)