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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* 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 org.jetbrains.plugins.groovy.lang.psi.impl.statements.typedef;
import com.intellij.openapi.util.Condition;
import com.intellij.openapi.util.ModificationTracker;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiMethod;
import com.intellij.psi.util.CachedValueProvider;
import com.intellij.psi.util.CachedValuesManager;
import com.intellij.util.containers.ContainerUtil;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.GrField;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinition;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.GrTypeDefinitionBody;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.typedef.members.GrMethod;
import org.jetbrains.plugins.groovy.lang.resolve.ast.AstTransformContributor;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static com.intellij.psi.util.PsiModificationTracker.OUT_OF_CODE_BLOCK_MODIFICATION_COUNT;
import static org.jetbrains.plugins.groovy.lang.psi.util.GrClassImplUtil.addExpandingReflectedMethods;
import static org.jetbrains.plugins.groovy.lang.psi.util.GrClassImplUtil.collectMethodsFromBody;
/**
* Created by Max Medvedev on 03/03/14
*/
public class GrTypeDefinitionMembersCache {
private static final Condition<PsiMethod> CONSTRUCTOR_CONDITION = new Condition<PsiMethod>() {
@Override
public boolean value(PsiMethod method) {
return method.isConstructor();
}
};
private final MyModificationTracker myTreeChangeTracker = new MyModificationTracker();
private final GrTypeDefinition myDefinition;
public GrTypeDefinitionMembersCache(GrTypeDefinition definition) {
myDefinition = definition;
}
public GrMethod[] getCodeMethods() {
return CachedValuesManager.getCachedValue(myDefinition, new CachedValueProvider<GrMethod[]>() {
@Nullable
@Override
public Result<GrMethod[]> compute() {
GrTypeDefinitionBody body = myDefinition.getBody();
GrMethod[] methods = body != null ? body.getMethods() : GrMethod.EMPTY_ARRAY;
return Result.create(methods, myTreeChangeTracker);
}
});
}
public GrMethod[] getCodeConstructors() {
return CachedValuesManager.getCachedValue(myDefinition, new CachedValueProvider<GrMethod[]>() {
@Nullable
@Override
public Result<GrMethod[]> compute() {
GrTypeDefinitionBody body = myDefinition.getBody();
GrMethod[] methods;
if (body != null) {
List<GrMethod> result = ContainerUtil.findAll(body.getMethods(), CONSTRUCTOR_CONDITION);
methods = result.toArray(new GrMethod[result.size()]);
}
else {
methods = GrMethod.EMPTY_ARRAY;
}
return Result.create(methods, myTreeChangeTracker);
}
});
}
public PsiMethod[] getConstructors() {
return CachedValuesManager.getCachedValue(myDefinition, new CachedValueProvider<PsiMethod[]>() {
@Nullable
@Override
public Result<PsiMethod[]> compute() {
List<PsiMethod> result = ContainerUtil.findAll(myDefinition.getMethods(), CONSTRUCTOR_CONDITION);
return Result.create(result.toArray(new PsiMethod[result.size()]), myTreeChangeTracker, OUT_OF_CODE_BLOCK_MODIFICATION_COUNT);
}
});
}
public PsiClass[] getInnerClasses() {
return CachedValuesManager.getCachedValue(myDefinition, new CachedValueProvider<PsiClass[]>() {
@Nullable
@Override
public Result<PsiClass[]> compute() {
final GrTypeDefinitionBody body = myDefinition.getBody();
PsiClass[] inners = body != null ? body.getInnerClasses() : PsiClass.EMPTY_ARRAY;
return Result.create(inners, myTreeChangeTracker);
}
});
}
public GrField[] getFields() {
return CachedValuesManager.getCachedValue(myDefinition, new CachedValueProvider<GrField[]>() {
@Nullable
@Override
public Result<GrField[]> compute() {
return Result.create(getFieldsImpl(), myTreeChangeTracker, OUT_OF_CODE_BLOCK_MODIFICATION_COUNT);
}
});
}
private GrField[] getFieldsImpl() {
GrField[] codeFields = myDefinition.getCodeFields();
List<GrField> fromAstTransform = getSyntheticFields();
if (fromAstTransform.isEmpty()) return codeFields;
GrField[] res = new GrField[codeFields.length + fromAstTransform.size()];
System.arraycopy(codeFields, 0, res, 0, codeFields.length);
for (int i = 0; i < fromAstTransform.size(); i++) {
res[codeFields.length + i] = fromAstTransform.get(i);
}
return res;
}
private List<GrField> getSyntheticFields() {
return CachedValuesManager.getCachedValue(myDefinition, new CachedValueProvider<List<GrField>>() {
@Nullable
@Override
public Result<List<GrField>> compute() {
return Result.create(AstTransformContributor.runContributorsForFields(myDefinition), myTreeChangeTracker, OUT_OF_CODE_BLOCK_MODIFICATION_COUNT);
}
});
}
public PsiMethod[] getMethods() {
return CachedValuesManager.getCachedValue(myDefinition, new CachedValueProvider<PsiMethod[]>() {
@Override
public Result<PsiMethod[]> compute() {
List<PsiMethod> result = new ArrayList<PsiMethod>();
collectMethodsFromBody(myDefinition, result);
for (PsiMethod method : AstTransformContributor.runContributorsForMethods(myDefinition)) {
addExpandingReflectedMethods(result, method);
}
for (GrField field : getSyntheticFields()) {
ContainerUtil.addIfNotNull(result, field.getSetter());
Collections.addAll(result, field.getGetters());
}
return Result.create(result.toArray(new PsiMethod[result.size()]), myTreeChangeTracker, OUT_OF_CODE_BLOCK_MODIFICATION_COUNT);
}
});
}
public void dropCaches() {
myTreeChangeTracker.inc();
}
private static class MyModificationTracker implements ModificationTracker {
private long myCount = 0;
@Override
public long getModificationCount() {
return myCount;
}
public void inc() {
myCount++;
}
}
}
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