/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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 org.elasticsearch.painless;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.util.CheckClassAdapter;
import org.objectweb.asm.util.CheckMethodAdapter;
import java.util.HashMap;
/**
* A CheckClassAdapter that does not use setAccessible to try to access private fields of Label!
* <p>
* This means jump insns are not checked, but we still get all the other checking.
*/
// TODO: we should really try to get this fixed in ASM!
public class SimpleChecksAdapter extends CheckClassAdapter {
public SimpleChecksAdapter(ClassVisitor cv) {
super(WriterConstants.ASM_VERSION, cv, false);
}
@Override
public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
MethodVisitor in = cv.visitMethod(access, name, desc, signature, exceptions);
CheckMethodAdapter checker = new CheckMethodAdapter(WriterConstants.ASM_VERSION, in, new HashMap<Label, Integer>()) {
@Override
public void visitJumpInsn(int opcode, Label label) {
mv.visitJumpInsn(opcode, label);
}
@Override
public void visitTryCatchBlock(Label start, Label end, Label handler, String type) {
mv.visitTryCatchBlock(start, end, handler, type);
}
};
checker.version = WriterConstants.CLASS_VERSION;
return checker;
}
}