// Copyright 2025 The Bazel Authors. All rights reserved.
//
// 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 net.starlark.java.eval;

import java.util.Objects;
import net.starlark.java.syntax.StarlarkType;
import net.starlark.java.syntax.TypeContext;
import net.starlark.java.syntax.Types;

/** Type checker for Starlark types. */
public final class TypeChecker {

  static boolean isValueSubtypeOf(
      Object value, StarlarkType type2, StarlarkSemantics semantics, TypeContext context) {
    // Fast path for Any type. `Starlark.getStarlarkType(value)` can take long time to evaluate
    if (Objects.equals(type2, Types.ANY)) {
      return true;
    }
    return StarlarkType.assignableFrom(type2, Starlark.getStarlarkType(value, semantics), context);
  }

  private TypeChecker() {}
}
