| /* |
| * 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. |
| */ |
| |
| /** |
| * @author cdr |
| */ |
| package com.intellij.psi.controlFlow; |
| |
| import com.intellij.psi.PsiElement; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class ControlFlowSubRange implements ControlFlow { |
| private final ControlFlowImpl myControlFlow; |
| private final int myStart; |
| private final int myEnd; |
| private List<Instruction> myInstructions; |
| |
| public ControlFlowSubRange(ControlFlowImpl controlFlow, int start, int end) { |
| myControlFlow = controlFlow; |
| myStart = start; |
| myEnd = end; |
| } |
| |
| @Override |
| @NotNull |
| public List<Instruction> getInstructions() { |
| if (myInstructions == null) { |
| final List<Instruction> list = new ArrayList<Instruction>(myEnd - myStart); |
| final List<Instruction> oldList = myControlFlow.getInstructions(); |
| for (int i = myStart; i < myEnd; i++) { |
| Instruction instruction = oldList.get(i).clone(); |
| if (instruction instanceof BranchingInstruction) { |
| BranchingInstruction branchingInstruction = (BranchingInstruction)instruction; |
| branchingInstruction.offset = patchOffset(branchingInstruction.offset); |
| } |
| if (instruction instanceof CallInstruction) { |
| final CallInstruction callInstruction = (CallInstruction)instruction; |
| callInstruction.procBegin = patchOffset(callInstruction.procBegin); |
| callInstruction.procEnd = patchOffset(callInstruction.procEnd); |
| } |
| if (instruction instanceof ReturnInstruction) { |
| final ReturnInstruction returnInstruction = (ReturnInstruction)instruction; |
| CallInstruction callInstruction = new CallInstruction(patchOffset(returnInstruction.getProcBegin()), patchOffset(returnInstruction.getProcEnd()), returnInstruction.getStack()); |
| returnInstruction.setCallInstruction(callInstruction); |
| } |
| list.add(instruction); |
| } |
| myInstructions = list; |
| } |
| return myInstructions; |
| } |
| |
| private int patchOffset(int offset) { |
| if (offset < myStart) offset = myStart; |
| else if (offset > myEnd) offset = myEnd; |
| offset -= myStart; |
| return offset; |
| } |
| |
| @Override |
| public int getSize() { |
| return myEnd - myStart; |
| } |
| |
| @Override |
| public int getStartOffset(@NotNull PsiElement element) { |
| return patchOffset(myControlFlow.getStartOffset(element)); |
| //return (myControlFlow.getStartOffset(element)); |
| } |
| |
| @Override |
| public int getEndOffset(@NotNull PsiElement element) { |
| return patchOffset(myControlFlow.getEndOffset(element)); |
| //return myControlFlow.getEndOffset(element); |
| } |
| |
| @Override |
| public PsiElement getElement(int offset) { |
| return myControlFlow.getElement(myStart + offset); |
| } |
| |
| @Override |
| public boolean isConstantConditionOccurred() { |
| return myControlFlow.isConstantConditionOccurred(); |
| } |
| |
| public String toString() { |
| @NonNls StringBuilder buffer = new StringBuilder(); |
| buffer. |
| append("CF range:["). |
| append(myStart). |
| append("-"). |
| append(myEnd). |
| append("]\n"); |
| |
| final List<Instruction> instructions = getInstructions(); |
| for(int i = 0; i < instructions.size(); i++){ |
| Instruction instruction = instructions.get(i); |
| buffer.append(Integer.toString(i)); |
| buffer.append(": "); |
| buffer.append(instruction.toString()); |
| buffer.append("\n"); |
| } |
| return buffer.toString(); |
| } |
| } |
| |