// Copyright 2022 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

//

// https://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 dev.cel.runtime;

import com.google.errorprone.annotations.Immutable;

import dev.cel.common.annotations.Internal;

/**

* An interface which provides metadata for syntax nodes.

*

* <p>CEL Library Internals. Do Not Use.

*/

@Immutable

@Internal

public interface Metadata {

/** Returns the location (like a filename) of the interpreted expression. */

String getLocation();

/**

* Returns the character position of the node in the source. This is a 0-based character offset.

*/

int getPosition(long exprId);

/** Checks if a source position recorded for the provided expression id. */

boolean hasPosition(long exprId);

}