Exemple #1
0
  private static void createProperty(ClassWriter cw, String classType, ASMProperty property)
      throws PageException {
    String name = property.getName();
    Type type = property.getASMType();
    Class clazz = property.getClazz();

    cw.visitField(Opcodes.ACC_PRIVATE, name, type.toString(), null, null).visitEnd();

    int load = loadFor(type);
    // int sizeOf=sizeOf(type);

    // get<PropertyName>():<type>
    Type[] types = new Type[0];
    Method method =
        new Method(
            (clazz == boolean.class ? "get" : "get") + StringUtil.ucFirst(name), type, types);
    GeneratorAdapter adapter = new GeneratorAdapter(Opcodes.ACC_PUBLIC, method, null, null, cw);

    Label start = new Label();
    adapter.visitLabel(start);

    adapter.visitVarInsn(Opcodes.ALOAD, 0);
    adapter.visitFieldInsn(Opcodes.GETFIELD, classType, name, type.toString());
    adapter.returnValue();

    Label end = new Label();
    adapter.visitLabel(end);
    adapter.visitLocalVariable("this", "L" + classType + ";", null, start, end, 0);
    adapter.visitEnd();

    adapter.endMethod();

    // set<PropertyName>(object):void
    types = new Type[] {type};
    method = new Method("set" + StringUtil.ucFirst(name), Types.VOID, types);
    adapter = new GeneratorAdapter(Opcodes.ACC_PUBLIC, method, null, null, cw);

    start = new Label();
    adapter.visitLabel(start);
    adapter.visitVarInsn(Opcodes.ALOAD, 0);
    adapter.visitVarInsn(load, 1);
    adapter.visitFieldInsn(Opcodes.PUTFIELD, classType, name, type.toString());

    adapter.visitInsn(Opcodes.RETURN);
    end = new Label();
    adapter.visitLabel(end);
    adapter.visitLocalVariable("this", "L" + classType + ";", null, start, end, 0);
    adapter.visitLocalVariable(name, type.toString(), null, start, end, 1);
    // adapter.visitMaxs(0, 0);//.visitMaxs(sizeOf+1, sizeOf+1);// hansx
    adapter.visitEnd();

    adapter.endMethod();
  }
  public int visitBeforeExpression(GeneratorAdapter adapter, int start, int step, boolean isLocal) {
    // init
    adapter.visitLabel(beforeInit);
    forInit(adapter, start, isLocal);
    adapter.goTo(beforeExpr);

    // update
    adapter.visitLabel(beforeUpdate);
    forUpdate(adapter, step, isLocal);

    // expression
    adapter.visitLabel(beforeExpr);
    return i;
  }
  private void _writeOutFinally(BytecodeContext bc, int lRef) throws BytecodeException {
    // ref.remove(pc);
    // Reference r=null;
    GeneratorAdapter adapter = bc.getAdapter();

    // if(fcf!=null &&
    // fcf.getAfterFinalGOTOLabel()!=null)ASMUtil.visitLabel(adapter,fcf.getFinalEntryLabel());
    ExpressionUtil.visitLine(bc, finallyLine);

    // if (reference != null)
    //    reference.removeEL(pagecontext);
    Label removeEnd = new Label();
    adapter.loadLocal(lRef);
    adapter.ifNull(removeEnd);
    adapter.loadLocal(lRef);
    adapter.loadArg(0);
    adapter.invokeInterface(Types.REFERENCE, REMOVE_EL);
    adapter.pop();
    adapter.visitLabel(removeEnd);

    if (finallyBody != null) finallyBody.writeOut(bc); // finally
    /*if(fcf!=null){
    	Label l = fcf.getAfterFinalGOTOLabel();
    	if(l!=null)adapter.visitJumpInsn(Opcodes.GOTO, l);
    }*/
  }
  /**
   * @see
   *     railo.transformer.bytecode.statement.StatementBase#_writeOut(org.objectweb.asm.commons.GeneratorAdapter)
   */
  public void _writeOut(BytecodeContext bc) throws BytecodeException {
    GeneratorAdapter adapter = bc.getAdapter();

    adapter.visitLabel(begin);

    // Reference ref=null;
    final int lRef = adapter.newLocal(Types.REFERENCE);
    adapter.visitInsn(Opcodes.ACONST_NULL);
    adapter.storeLocal(lRef);

    // has no try body, if there is no try body, no catches are executed, only finally
    if (!tryBody.hasStatements()) {
      if (finallyBody != null) finallyBody.writeOut(bc);
      return;
    }

    TryCatchFinallyVisitor tcfv =
        new TryCatchFinallyVisitor(
            new OnFinally() {

              public void writeOut(BytecodeContext bc) throws BytecodeException {
                _writeOutFinally(bc, lRef);
              }
            },
            getFlowControlFinal());

    // try
    tcfv.visitTryBegin(bc);
    tryBody.writeOut(bc);
    int lThrow = tcfv.visitTryEndCatchBeging(bc);
    _writeOutCatch(bc, lRef, lThrow);
    tcfv.visitCatchEnd(bc);
  }
Exemple #5
0
  /**
   * @see
   *     lucee.transformer.bytecode.expression.ExpressionBase#_writeOut(org.objectweb.asm.commons.GeneratorAdapter,
   *     int)
   */
  @Override
  public Type _writeOut(BytecodeContext bc, int mode) throws TransformerException {
    GeneratorAdapter adapter = bc.getAdapter();
    if (mode == MODE_REF) {
      _writeOut(bc, MODE_VALUE);
      adapter.invokeStatic(Types.CASTER, Methods.METHOD_TO_BOOLEAN_FROM_BOOLEAN);
      return Types.BOOLEAN;
    }

    Label l1 = new Label();
    Label l2 = new Label();

    expr.writeOut(bc, MODE_VALUE);
    adapter.ifZCmp(Opcodes.IFEQ, l1);

    adapter.visitInsn(Opcodes.ICONST_0);
    adapter.visitJumpInsn(Opcodes.GOTO, l2);
    adapter.visitLabel(l1);
    adapter.visitInsn(Opcodes.ICONST_1);
    adapter.visitLabel(l2);

    return Types.BOOLEAN_VALUE;
  }
  private void _writeOutCatch(BytecodeContext bc, int lRef, int lThrow) throws BytecodeException {
    GeneratorAdapter adapter = bc.getAdapter();
    int pe = adapter.newLocal(Types.PAGE_EXCEPTION);

    // instance of Abort
    Label abortEnd = new Label();
    adapter.loadLocal(lThrow);
    adapter.invokeStatic(Types.ABORT, TryCatchFinally.IS_ABORT);
    // adapter.instanceOf(Types.ABORT);
    adapter.ifZCmp(Opcodes.IFEQ, abortEnd);
    adapter.loadLocal(lThrow);
    adapter.throwException();
    adapter.visitLabel(abortEnd);

    // PageExceptionImpl old=pc.getCatch();
    int old = adapter.newLocal(Types.PAGE_EXCEPTION);
    adapter.loadArg(0);
    adapter.invokeVirtual(Types.PAGE_CONTEXT, TagTry.GET_CATCH);
    adapter.storeLocal(old);

    // cast to PageException  Caster.toPagException(t);
    adapter.loadLocal(lThrow);
    adapter.invokeStatic(Types.CASTER, TO_PAGE_EXCEPTION);

    // PageException pe=...
    adapter.storeLocal(pe);

    // catch loop
    Label endAllIf = new Label();
    Iterator<Catch> it = catches.iterator();
    Catch ctElse = null;
    while (it.hasNext()) {
      Catch ct = it.next();
      // store any for else
      if (ct.type != null
          && ct.type instanceof LitString
          && ((LitString) ct.type).getString().equalsIgnoreCase("any")) {
        ctElse = ct;
        continue;
      }

      ExpressionUtil.visitLine(bc, ct.line);

      // pe.typeEqual(type)
      if (ct.type == null) {
        LitBoolean.TRUE.writeOut(bc, Expression.MODE_VALUE);
      } else {
        adapter.loadLocal(pe);
        ct.type.writeOut(bc, Expression.MODE_REF);
        adapter.invokeVirtual(Types.PAGE_EXCEPTION, TYPE_EQUAL);
      }

      Label endIf = new Label();
      adapter.ifZCmp(Opcodes.IFEQ, endIf);

      catchBody(bc, adapter, ct, pe, lRef, true, true);

      adapter.visitJumpInsn(Opcodes.GOTO, endAllIf);
      adapter.visitLabel(endIf);
    }

    if (ctElse != null) {
      catchBody(bc, adapter, ctElse, pe, lRef, true, true);
    } else {
      // pc.setCatch(pe,true);
      adapter.loadArg(0);
      adapter.loadLocal(pe);
      adapter.push(false);
      adapter.push(false);
      adapter.invokeVirtual(Types.PAGE_CONTEXT, TagTry.SET_CATCH3);

      adapter.loadLocal(pe);
      adapter.throwException();
    }
    adapter.visitLabel(endAllIf);

    // PageExceptionImpl old=pc.setCatch(old);
    adapter.loadArg(0);
    adapter.loadLocal(old);
    adapter.invokeVirtual(Types.PAGE_CONTEXT, TagTry.SET_CATCH_PE);
  }
Exemple #7
0
 public static void visitLabel(GeneratorAdapter ga, Label label) {
   if (label != null) ga.visitLabel(label);
 }