public void addInstruction(int index, BuilderInstruction instruction) { // the end check here is intentially >= rather than >, because the list always includes an "empty" // (null instruction) MethodLocation at the end. To add an instruction to the end of the list, the user would // provide the index of this empty item, which would be size() - 1. if (index >= instructionList.size()) { throw new IndexOutOfBoundsException(); } if (index == instructionList.size() - 1) { addInstruction(instruction); return; } int codeAddress = instructionList.get(index).getCodeAddress(); MethodLocation newLoc = new MethodLocation(instruction, codeAddress, index); instructionList.add(index, newLoc); instruction.location = newLoc; codeAddress += instruction.getCodeUnits(); for (int i = index + 1; i < instructionList.size(); i++) { MethodLocation location = instructionList.get(i); location.index++; location.codeAddress = codeAddress; if (location.instruction != null) { codeAddress += location.instruction.getCodeUnits(); } else { // only the last MethodLocation should have a null instruction assert i == instructionList.size() - 1; } } this.fixInstructions = true; }
index--; } else { addInstruction(location.index, new BuilderInstruction10x(Opcode.NOP)); index++;
public void addInstruction(int index, BuilderInstruction instruction) { // the end check here is intentially >= rather than >, because the list always includes an "empty" // (null instruction) MethodLocation at the end. To add an instruction to the end of the list, the user would // provide the index of this empty item, which would be size() - 1. if (index >= instructionList.size()) { throw new IndexOutOfBoundsException(); } if (index == instructionList.size() - 1) { addInstruction(instruction); return; } int codeAddress = instructionList.get(index).getCodeAddress(); MethodLocation newLoc = new MethodLocation(instruction, codeAddress, index); instructionList.add(index, newLoc); instruction.location = newLoc; codeAddress += instruction.getCodeUnits(); for (int i = index + 1; i < instructionList.size(); i++) { MethodLocation location = instructionList.get(i); location.index++; location.codeAddress = codeAddress; if (location.instruction != null) { codeAddress += location.instruction.getCodeUnits(); } else { // only the last MethodLocation should have a null instruction assert i == instructionList.size() - 1; } } this.fixInstructions = true; }
index--; } else { addInstruction(location.index, new BuilderInstruction10x(Opcode.NOP)); index++;