001    /*
002     * Copyright 2010-2015 JetBrains s.r.o.
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     * http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    
017    package org.jetbrains.kotlin.types.checker;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.kotlin.types.JetType;
021    import org.jetbrains.kotlin.types.TypeConstructor;
022    import org.jetbrains.kotlin.types.TypeProjection;
023    
024    /**
025     * Methods of this class return true to continue type checking and false to fail
026     */
027    public interface TypeCheckingProcedureCallbacks {
028        boolean assertEqualTypes(@NotNull JetType a, @NotNull JetType b, @NotNull TypeCheckingProcedure typeCheckingProcedure);
029    
030        boolean assertEqualTypeConstructors(@NotNull TypeConstructor a, @NotNull TypeConstructor b);
031    
032        boolean assertSubtype(@NotNull JetType subtype, @NotNull JetType supertype, @NotNull TypeCheckingProcedure typeCheckingProcedure);
033    
034        boolean capture(@NotNull JetType type, @NotNull TypeProjection typeProjection);
035    
036        boolean noCorrespondingSupertype(@NotNull JetType subtype, @NotNull JetType supertype);
037    }