net.sandius.rembulan.compiler.gen.asm.helpers.ExecutionContextMethods.java Source code

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Here is the source code for net.sandius.rembulan.compiler.gen.asm.helpers.ExecutionContextMethods.java

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/*
 * Copyright 2016 Miroslav Jan?ek
 *
 * 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.sandius.rembulan.compiler.gen.asm.helpers;

import net.sandius.rembulan.Table;
import net.sandius.rembulan.runtime.ExecutionContext;
import org.objectweb.asm.Type;
import org.objectweb.asm.tree.InsnList;
import org.objectweb.asm.tree.MethodInsnNode;

import static org.objectweb.asm.Opcodes.INVOKEINTERFACE;

public abstract class ExecutionContextMethods {

    private ExecutionContextMethods() {
        // not to be instantiated or extended
    }

    private static Type selfTpe() {
        return Type.getType(ExecutionContext.class);
    }

    public static MethodInsnNode registerTicks() {
        return new MethodInsnNode(INVOKEINTERFACE, selfTpe().getInternalName(), "registerTicks",
                Type.getMethodDescriptor(Type.VOID_TYPE, Type.INT_TYPE), true);
    }

    public static MethodInsnNode checkCallYield() {
        return new MethodInsnNode(INVOKEINTERFACE, selfTpe().getInternalName(), "pauseIfRequested",
                Type.getMethodDescriptor(Type.VOID_TYPE), true);
    }

    public static InsnList newTable(int array, int hash) {
        InsnList il = new InsnList();

        il.add(ASMUtils.loadInt(array));
        il.add(ASMUtils.loadInt(hash));

        il.add(new MethodInsnNode(INVOKEINTERFACE, selfTpe().getInternalName(), "newTable",
                Type.getMethodType(Type.getType(Table.class), Type.INT_TYPE, Type.INT_TYPE).getDescriptor(), true));

        return il;
    }

}