001 /*
002 * Copyright 2010-2013 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.jet.lang.types.expressions;
018
019 import org.jetbrains.annotations.NotNull;
020 import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
021 import org.jetbrains.jet.lang.resolve.BindingTrace;
022 import org.jetbrains.jet.lang.resolve.calls.CallResolverExtension;
023 import org.jetbrains.jet.lang.resolve.calls.autocasts.DataFlowInfo;
024 import org.jetbrains.jet.lang.resolve.calls.context.ContextDependency;
025 import org.jetbrains.jet.lang.resolve.calls.context.ResolutionContext;
026 import org.jetbrains.jet.lang.resolve.calls.context.ResolutionResultsCache;
027 import org.jetbrains.jet.lang.resolve.calls.context.ResolutionResultsCacheImpl;
028 import org.jetbrains.jet.lang.resolve.constants.CompileTimeConstantChecker;
029 import org.jetbrains.jet.lang.resolve.scopes.JetScope;
030 import org.jetbrains.jet.lang.types.JetType;
031
032 public class ExpressionTypingContext extends ResolutionContext<ExpressionTypingContext> {
033
034 @NotNull
035 public static ExpressionTypingContext newContext(
036 @NotNull ExpressionTypingServices expressionTypingServices,
037 @NotNull BindingTrace trace,
038 @NotNull JetScope scope,
039 @NotNull DataFlowInfo dataFlowInfo,
040 @NotNull JetType expectedType
041 ) {
042 return newContext(trace, scope, dataFlowInfo, expectedType,
043 ContextDependency.INDEPENDENT, ResolutionResultsCacheImpl.create(), LabelResolver.create(),
044 expressionTypingServices.createExtension(scope, false), false);
045 }
046
047 @NotNull
048 public static ExpressionTypingContext newContext(@NotNull ResolutionContext resolutionContext) {
049 return newContext(resolutionContext.trace, resolutionContext.scope, resolutionContext.dataFlowInfo,
050 resolutionContext.expectedType, resolutionContext.contextDependency,
051 resolutionContext.resolutionResultsCache, resolutionContext.labelResolver,
052 resolutionContext.callResolverExtension, resolutionContext.isAnnotationContext);
053 }
054
055 @NotNull
056 public static ExpressionTypingContext newContext(
057 @NotNull BindingTrace trace,
058 @NotNull JetScope scope,
059 @NotNull DataFlowInfo dataFlowInfo,
060 @NotNull JetType expectedType,
061 @NotNull ContextDependency contextDependency,
062 @NotNull ResolutionResultsCache resolutionResultsCache,
063 @NotNull LabelResolver labelResolver,
064 @NotNull CallResolverExtension callResolverExtension,
065 boolean isAnnotationContext
066 ) {
067 return new ExpressionTypingContext(labelResolver, trace, scope, scope.getContainingDeclaration(), dataFlowInfo,
068 expectedType, contextDependency, resolutionResultsCache, callResolverExtension, isAnnotationContext);
069 }
070
071 public final DeclarationDescriptor containingDeclaration;
072 private CompileTimeConstantChecker compileTimeConstantChecker;
073
074 private ExpressionTypingContext(
075 @NotNull LabelResolver labelResolver,
076 @NotNull BindingTrace trace,
077 @NotNull JetScope scope,
078 @NotNull DeclarationDescriptor containingDeclaration,
079 @NotNull DataFlowInfo dataFlowInfo,
080 @NotNull JetType expectedType,
081 @NotNull ContextDependency contextDependency,
082 @NotNull ResolutionResultsCache resolutionResultsCache,
083 @NotNull CallResolverExtension callResolverExtension,
084 boolean isAnnotationContext
085 ) {
086 super(trace, scope, expectedType, dataFlowInfo, contextDependency, resolutionResultsCache, labelResolver, callResolverExtension,
087 isAnnotationContext);
088 this.containingDeclaration = containingDeclaration;
089 }
090
091 @Override
092 protected ExpressionTypingContext create(
093 @NotNull BindingTrace trace,
094 @NotNull JetScope scope,
095 @NotNull DataFlowInfo dataFlowInfo,
096 @NotNull JetType expectedType,
097 @NotNull ContextDependency contextDependency,
098 @NotNull ResolutionResultsCache resolutionResultsCache,
099 @NotNull LabelResolver labelResolver
100 ) {
101 return new ExpressionTypingContext(this.labelResolver, trace, scope, containingDeclaration, dataFlowInfo,
102 expectedType, contextDependency, resolutionResultsCache, callResolverExtension,
103 isAnnotationContext);
104 }
105
106 ///////////// LAZY ACCESSORS
107
108 public CompileTimeConstantChecker getCompileTimeConstantChecker() {
109 if (compileTimeConstantChecker == null) {
110 compileTimeConstantChecker = new CompileTimeConstantChecker(trace, false);
111 }
112 return compileTimeConstantChecker;
113 }
114 }