| /* |
| * Copyright 2000-2009 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 com.intellij.codeInspection.dataFlow.instructions; |
| |
| import com.intellij.codeInspection.dataFlow.DataFlowRunner; |
| import com.intellij.codeInspection.dataFlow.DfaInstructionState; |
| import com.intellij.codeInspection.dataFlow.DfaMemoryState; |
| import com.intellij.codeInspection.dataFlow.InstructionVisitor; |
| import com.intellij.psi.PsiArrayAccessExpression; |
| import com.intellij.psi.PsiExpression; |
| import com.intellij.psi.PsiReferenceExpression; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * @author max |
| */ |
| public class FieldReferenceInstruction extends Instruction { |
| private final PsiExpression myExpression; |
| @Nullable private final String mySyntheticFieldName; |
| |
| public FieldReferenceInstruction(@NotNull PsiExpression expression, @Nullable @NonNls String syntheticFieldName) { |
| myExpression = expression; |
| mySyntheticFieldName = syntheticFieldName; |
| } |
| |
| @Override |
| public DfaInstructionState[] accept(DataFlowRunner runner, DfaMemoryState stateBefore, InstructionVisitor visitor) { |
| return visitor.visitFieldReference(this, runner, stateBefore); |
| } |
| |
| public String toString() { |
| return "FIELD_REFERENCE: " + myExpression.getText(); |
| } |
| |
| @NotNull |
| public PsiExpression getExpression() { |
| return myExpression; |
| } |
| |
| @Nullable |
| public PsiExpression getElementToAssert() { |
| if (mySyntheticFieldName != null) return myExpression; |
| return myExpression instanceof PsiArrayAccessExpression |
| ? ((PsiArrayAccessExpression)myExpression).getArrayExpression() |
| : ((PsiReferenceExpression)myExpression).getQualifierExpression(); |
| } |
| } |