Package org.mvel2.util

Examples of org.mvel2.util.ExecutionStack.push()

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          break;
        case Operator.LOAD:
          if (instruction.cache == null) {
            instruction.cache = factory.getVariableResolver(instruction.expr);
          }
          stack.push(((VariableResolver) instruction.cache).getValue());
          break;
        case Operator.GETFIELD:
          try {
            if (stack.isEmpty() || !(stack.peek() instanceof Class)) {
              throw new CompileException("getfield without class", expr, blockStart);
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            else {
              stack.discard();
              field = (Field) instruction.cache;
            }

            stack.push(field.get(stack.pop()));
          }
          catch (Exception e) {
            throw new CompileException("field access error", expr, blockStart, e);
          }
          break;
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            }

            Class cls = (Class) stack.pop();
            Object val = stack.pop();
            cls.getField(instruction.expr).set(stack.pop(), val);
            stack.push(val);
          }
          catch (Exception e) {
            throw new CompileException("field access error", expr, blockStart, e);
          }
          break;
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        case Operator.LDTYPE:
          try {
            if (instruction.cache == null) {
              instruction.cache = ParseTools.createClass(instruction.expr, pCtx);
            }
            stack.push(instruction.cache);
          }
          catch (ClassNotFoundException e) {
            throw new CompileException("error", expr, blockStart, e);
          }
          break;
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        case Operator.INVOKE:
          Object[] parms;
          ExecutionStack call = new ExecutionStack();
          while (!stack.isEmpty() && !(stack.peek() instanceof Class)) {
            call.push(stack.pop());
          }
          if (stack.isEmpty()) {
            throw new CompileException("invoke without class", expr, blockStart);
          }
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  }

  @Override
  public Object getReducedValueAccelerated(Object ctx, Object thisValue, VariableResolverFactory factory) {
    ExecutionStack stk = new ExecutionStack();
    stk.push(getReducedValue(stk, thisValue, factory));
    if (stk.isReduceable()) {
      while (true) {
        stk.op();
        if (stk.isReduceable()) {
          stk.xswap();
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            }
          }
          continue;
        }
        else if (stk.isEmpty()) {
          stk.push(tk.getReducedValueAccelerated(ctx, ctx, variableFactory));
        }

        if (variableFactory.tiltFlag()) {
          return stk.pop();
        }
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            }

            continue;
        }

        stk.push(tk.nextASTNode.getReducedValueAccelerated(ctx, ctx, variableFactory), operator);

        try {
          while (stk.isReduceable()) {
            if ((Integer) stk.peek() == CHOR) {
              stk.pop();
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              stk.pop();
              v1 = stk.pop();
              v2 = stk.pop();
              if (!isEmpty(v2) || !isEmpty(v1)) {
                stk.clear();
                stk.push(!isEmpty(v2) ? v2 : v1);
              }
              else stk.push(null);
            }
            else {
              stk.op();
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              v2 = stk.pop();
              if (!isEmpty(v2) || !isEmpty(v1)) {
                stk.clear();
                stk.push(!isEmpty(v2) ? v2 : v1);
              }
              else stk.push(null);
            }
            else {
              stk.op();
            }
          }
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