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.resolve;
018    
019    import org.jetbrains.annotations.NotNull;
020    import org.jetbrains.jet.lang.descriptors.CallableMemberDescriptor;
021    import org.jetbrains.jet.lang.descriptors.ScriptDescriptor;
022    import org.jetbrains.jet.lang.descriptors.SimpleFunctionDescriptor;
023    import org.jetbrains.jet.lang.descriptors.impl.PropertyDescriptorImpl;
024    import org.jetbrains.jet.lang.psi.JetDeclaration;
025    import org.jetbrains.jet.lang.psi.JetNamedFunction;
026    import org.jetbrains.jet.lang.psi.JetProperty;
027    import org.jetbrains.jet.lang.psi.JetScript;
028    import org.jetbrains.jet.lang.resolve.calls.autocasts.DataFlowInfo;
029    import org.jetbrains.jet.lang.resolve.scopes.WritableScope;
030    import org.jetbrains.jet.lang.types.ErrorUtils;
031    import org.jetbrains.jet.lang.types.JetType;
032    import org.jetbrains.jet.lang.types.expressions.CoercionStrategy;
033    import org.jetbrains.jet.lang.types.expressions.ExpressionTypingContext;
034    import org.jetbrains.jet.lang.types.expressions.ExpressionTypingServices;
035    
036    import javax.inject.Inject;
037    import java.util.ArrayList;
038    import java.util.List;
039    import java.util.Map;
040    
041    import static org.jetbrains.jet.lang.types.TypeUtils.NO_EXPECTED_TYPE;
042    
043    public class ScriptBodyResolver {
044    
045        @NotNull
046        private ExpressionTypingServices expressionTypingServices;
047        @NotNull
048        private BindingTrace trace;
049    
050        public void setContext(@NotNull TopDownAnalysisContext context) {
051        }
052    
053        @Inject
054        public void setExpressionTypingServices(@NotNull ExpressionTypingServices expressionTypingServices) {
055            this.expressionTypingServices = expressionTypingServices;
056        }
057    
058        @Inject
059        public void setTrace(@NotNull BindingTrace trace) {
060            this.trace = trace;
061        }
062    
063    
064    
065        public void resolveScriptBodies(@NotNull BodiesResolveContext c) {
066            for (Map.Entry<JetScript, ScriptDescriptor> e : c.getScripts().entrySet()) {
067                JetScript declaration = e.getKey();
068                ScriptDescriptor descriptor = e.getValue();
069                WritableScope scope = c.getScriptScopes().get(declaration);
070    
071                // TODO: lock in resolveScriptDeclarations
072                scope.changeLockLevel(WritableScope.LockLevel.READING);
073    
074                ExpressionTypingContext context = ExpressionTypingContext.newContext(
075                        expressionTypingServices,
076                        trace,
077                        scope,
078                        DataFlowInfo.EMPTY,
079                        NO_EXPECTED_TYPE
080                );
081                JetType returnType = expressionTypingServices.getBlockReturnedType(declaration.getBlockExpression(), CoercionStrategy.NO_COERCION, context).getType();
082                if (returnType == null) {
083                    returnType = ErrorUtils.createErrorType("getBlockReturnedType returned null");
084                }
085    
086                List<PropertyDescriptorImpl> properties = new ArrayList<PropertyDescriptorImpl>();
087                List<SimpleFunctionDescriptor> functions = new ArrayList<SimpleFunctionDescriptor>();
088    
089                BindingContext bindingContext = trace.getBindingContext();
090                for (JetDeclaration jetDeclaration : declaration.getDeclarations()) {
091                    if (jetDeclaration instanceof JetProperty) {
092                        properties.add((PropertyDescriptorImpl) bindingContext.get(BindingContext.VARIABLE, jetDeclaration));
093                    }
094                    else if (jetDeclaration instanceof JetNamedFunction) {
095                        SimpleFunctionDescriptor function = bindingContext.get(BindingContext.FUNCTION, jetDeclaration);
096                        assert function != null;
097                        functions.add(function.copy(descriptor.getClassDescriptor(), function.getModality(), function.getVisibility(),
098                                                    CallableMemberDescriptor.Kind.DECLARATION, false));
099                    }
100                }
101    
102                descriptor.initialize(returnType, properties, functions);
103            }
104        }
105    
106    }