com.facebook.buck.android.dalvik.firstorder.FirstOrderMethodVisitor.java Source code

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Here is the source code for com.facebook.buck.android.dalvik.firstorder.FirstOrderMethodVisitor.java

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/*
 * Copyright 2012-present Facebook, Inc.
 *
 * 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 com.facebook.buck.android.dalvik.firstorder;

import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.Handle;
import org.objectweb.asm.Label;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

class FirstOrderMethodVisitor extends MethodVisitor {

    private final FirstOrderVisitorContext mContext;
    private final FirstOrderTypeInfo.Builder mBuilder;

    public FirstOrderMethodVisitor(FirstOrderVisitorContext context) {
        super(Opcodes.ASM5);
        mContext = context;
        mBuilder = context.builder;
    }

    @Override
    public AnnotationVisitor visitAnnotationDefault() {
        return mContext.annotationVisitor;
    }

    @Override
    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
        // Unused by dexopt: mBuilder.addDependencyDesc(desc);
        return mContext.annotationVisitor;
    }

    @Override
    public AnnotationVisitor visitParameterAnnotation(int parameter, String desc, boolean visible) {
        // Unused by dexopt: mBuilder.addDependencyDesc(desc);
        return mContext.annotationVisitor;
    }

    @Override
    public void visitFrame(int type, int nLocal, Object[] local, int nStack, Object[] stack) {
        visitFrameEntries(nLocal, local);
        visitFrameEntries(nStack, stack);
    }

    @Override
    public void visitTypeInsn(int opcode, String type) {
        mBuilder.addDependencyInternalName(type);
    }

    @Override
    public void visitFieldInsn(int opcode, String owner, String name, String desc) {
        mBuilder.addDependencyInternalName(owner);
        mBuilder.addDependencyDesc(desc);
    }

    @Override
    public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
        mBuilder.addDependencyInternalName(owner);
        mBuilder.addDependencyDesc(desc);
    }

    @Override
    public void visitInvokeDynamicInsn(String name, String desc, Handle bsm, Object... bsmArgs) {
        mBuilder.addDependencyDesc(desc);
        mBuilder.addValue(bsm);
        for (Object bsmArg : bsmArgs) {
            mBuilder.addValue(bsmArg);
        }
    }

    @Override
    public void visitLdcInsn(Object cst) {
        mBuilder.addValue(cst);
    }

    @Override
    public void visitMultiANewArrayInsn(String desc, int dims) {
        mBuilder.addDependencyDesc(desc);
    }

    @Override
    public void visitTryCatchBlock(Label start, Label end, Label handler, String type) {
        mBuilder.addDependencyInternalName(type);
    }

    @Override
    public void visitLocalVariable(String name, String desc, String signature, Label start, Label end, int index) {
        mBuilder.addDependencyDesc(desc);
    }

    private void visitFrameEntries(int n, Object[] entries) {
        for (int i = 0; i < n; i++) {
            if (entries[i] instanceof String) {
                mBuilder.addDependencyInternalName((String) entries[i]);
            }
        }
    }
}