net.hasor.dataql.runtime.inset.ASE Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of hasor-dataql Show documentation

the hasor DataQL project.

There is a newer version: 4.2.5

/*
 * Copyright 2008-2009 the original author or authors.
 *
 * 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.
 */
package net.hasor.dataql.runtime.inset;
import net.hasor.dataql.ProcessException;
import net.hasor.dataql.runtime.InsetProcess;
import net.hasor.dataql.runtime.InstSequence;
import net.hasor.dataql.runtime.ProcessContet;
import net.hasor.dataql.runtime.mem.MemStack;
import net.hasor.dataql.runtime.mem.StackStruts;
import net.hasor.dataql.runtime.struts.ResultStruts;
/**
 * ASA、ASM、ASO 三个指令在处理数据时都是用 ResultStruts 进行封装。
 * ASE 指令的目的是拆除 ResultStruts 封装，还原真实结果。
 *
 * @author 赵永春([email protected])
 * @version : 2017-07-19
 */
class ASE implements InsetProcess {
    @Override
    public int getOpcode() {
        return ASE;
    }
    @Override
    public void doWork(InstSequence sequence, MemStack memStack, StackStruts local, ProcessContet context) throws ProcessException {
        ResultStruts rs = (ResultStruts) memStack.pop();
        memStack.push(rs.getResult());
    }
}