Package org.apache.bcel.generic

Examples of org.apache.bcel.generic.BranchHandle

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    public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
          BooleanType type) {
  final InstructionList il = methodGen.getInstructionList();
  FlowList falsel = translateToDesynthesized(classGen, methodGen, type);
  il.append(ICONST_1);
  final BranchHandle truec = il.append(new GOTO(null));
  falsel.backPatch(il.append(ICONST_0));
  truec.setTarget(il.append(NOP));
    }
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  final InstructionList il = methodGen.getInstructionList();

  if (clazz.getName().equals("java.lang.String")) {
      // same internal representation, convert null to ""
      il.append(DUP);
      final BranchHandle ifNonNull = il.append(new IFNONNULL(null));
      il.append(POP);
      il.append(new PUSH(cpg, ""));
      ifNonNull.setTarget(il.append(NOP));
  }
  else {
      ErrorMsg err = new ErrorMsg(ErrorMsg.DATA_CONVERSION_ERR,
          toString(), clazz.getName());
      classGen.getParser().reportError(Constants.FATAL, err);
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    public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
          BooleanType type) {
  final InstructionList il = methodGen.getInstructionList();
  FlowList falsel = translateToDesynthesized(classGen, methodGen, type);
  il.append(ICONST_1);
  final BranchHandle truec = il.append(new GOTO(null));
  falsel.backPatch(il.append(ICONST_0));
  truec.setTarget(il.append(NOP));
    }
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    public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
          StringType type) {
  final InstructionList il = methodGen.getInstructionList();
  getFirstNode(classGen, methodGen);
  il.append(DUP);
  final BranchHandle falsec = il.append(new IFLT(null));
  Type.Node.translateTo(classGen, methodGen, type);
  final BranchHandle truec = il.append(new GOTO(null));
  falsec.setTarget(il.append(POP));
  il.append(new PUSH(classGen.getConstantPool(), ""));
  truec.setTarget(il.append(NOP));
    }
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    public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
          BooleanType type) {
  final InstructionList il = methodGen.getInstructionList();
  FlowList falsel = translateToDesynthesized(classGen, methodGen, type);
  il.append(ICONST_1);
  final BranchHandle truec = il.append(new GOTO(null));
  falsel.backPatch(il.append(ICONST_0));
  truec.setTarget(il.append(NOP));
    }
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  il.append(methodGen.storeIterator());

  // Give local variables (if any) default values before starting loop
  initializeVariables(classGen, methodGen);

  final BranchHandle nextNode = il.append(new GOTO(null));
  final InstructionHandle loop = il.append(NOP);

  translateContents(classGen, methodGen);
       
  nextNode.setTarget(il.append(methodGen.loadIterator()));
  il.append(methodGen.nextNode());
  il.append(DUP);
  il.append(methodGen.storeCurrentNode());
  il.append(new IFGT(loop));
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     * @see  org.apache.xalan.xsltc.compiler.util.Type#translateTo
     */
    public void translateTo(ClassGenerator classGen, MethodGenerator methodGen,
          BooleanType type) {
  final InstructionList il = methodGen.getInstructionList();
  final BranchHandle falsec = il.append(new IFEQ(null));
  il.append(ICONST_1);
  final BranchHandle truec = il.append(new GOTO(null));
  falsec.setTarget(il.append(ICONST_0));
  truec.setTarget(il.append(NOP));
    }
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     */
    public void backPatch(InstructionHandle target) {
  if (_elements != null) {
      final int n = _elements.size();
      for (int i = 0; i < n; i++) {
    BranchHandle bh = (BranchHandle)_elements.elementAt(i);
    bh.setTarget(target);
      }
      _elements.clear();    // avoid backpatching more than once
  }
    }
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    public void translateDesynthesized(ClassGenerator classGen,
               MethodGenerator methodGen) {
  final InstructionList il = methodGen.getInstructionList();
  final Expression exp = argument();
  exp.translateDesynthesized(classGen, methodGen);
  final BranchHandle gotoh = il.append(new GOTO(null));
  _trueList = exp._falseList;   // swap flow lists
  _falseList = exp._trueList;
  _falseList.add(gotoh);
    }
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              * param using its default value:
              *       if (param == null) param = <default-value>
              */
            if (_isInSimpleNamedTemplate) {
    il.append(loadInstruction());
                BranchHandle ifBlock = il.append(new IFNONNULL(null));
                translateValue(classGen, methodGen);
                il.append(storeInstruction());
                ifBlock.setTarget(il.append(NOP));
                return;
            }
           
      il.append(classGen.loadTranslet());
      il.append(new PUSH(cpg, name));
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Related Classes of org.apache.bcel.generic.BranchHandle

  • Mini.ASTExpr
  • Mini.ASTFunDecl
  • Mini.ASTIfExpr
  • org.apache.bcel.util.BCELFactory
  • org.apache.xalan.xsltc.compiler.AbsolutePathPattern
  • org.apache.xalan.xsltc.compiler.AncestorPattern
  • org.apache.xalan.xsltc.compiler.Choose
  • org.apache.xalan.xsltc.compiler.Copy
  • org.apache.xalan.xsltc.compiler.EqualityExpr
  • org.apache.xalan.xsltc.compiler.Expression
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