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74 lines
2.7 KiB
Java
74 lines
2.7 KiB
Java
/*
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* Copyright 2000-2009 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Created by IntelliJ IDEA.
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* User: max
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* Date: Feb 7, 2002
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* Time: 1:11:08 PM
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* To change template for new class use
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* Code Style | Class Templates options (Tools | IDE Options).
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*/
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package com.intellij.codeInspection.dataFlow.instructions;
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import com.intellij.codeInspection.dataFlow.DataFlowRunner;
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import com.intellij.codeInspection.dataFlow.DfaInstructionState;
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import com.intellij.codeInspection.dataFlow.DfaMemoryState;
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import com.intellij.codeInspection.dataFlow.InstructionVisitor;
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import com.intellij.codeInspection.dataFlow.value.DfaValue;
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import com.intellij.codeInspection.dataFlow.value.DfaValueFactory;
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import com.intellij.openapi.project.Project;
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import com.intellij.psi.*;
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import com.intellij.psi.search.GlobalSearchScope;
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import com.intellij.psi.tree.IElementType;
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import com.intellij.psi.tree.TokenSet;
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import org.jetbrains.annotations.NotNull;
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import static com.intellij.psi.JavaTokenType.*;
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public class BinopInstruction extends BranchingInstruction {
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private static final TokenSet ourSignificantOperations = TokenSet.create(EQEQ, NE, LT, GT, LE, GE, INSTANCEOF_KEYWORD, PLUS);
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private final IElementType myOperationSign;
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private final Project myProject;
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public BinopInstruction(IElementType opSign, PsiElement psiAnchor, @NotNull Project project) {
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myProject = project;
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myOperationSign = ourSignificantOperations.contains(opSign) ? opSign : null;
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setPsiAnchor(psiAnchor);
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}
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@Override
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public DfaInstructionState[] accept(DataFlowRunner runner, DfaMemoryState stateBefore, InstructionVisitor visitor) {
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return visitor.visitBinop(this, runner, stateBefore);
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}
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public DfaValue getNonNullStringValue(final DfaValueFactory factory) {
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PsiElement anchor = getPsiAnchor();
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Project project = myProject;
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PsiClassType string = PsiType.getJavaLangString(PsiManager.getInstance(project), anchor == null ? GlobalSearchScope.allScope(project) : anchor.getResolveScope());
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return factory.getNotNullFactory().create(string);
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}
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public String toString() {
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return "BINOP " + myOperationSign;
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}
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public IElementType getOperationSign() {
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return myOperationSign;
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}
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}
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