com.reandroid.dex.smali.model.SmaliInstructionPayload Maven / Gradle / Ivy

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/*
 *  Copyright (C) 2022 github.com/REAndroid
 *
 *  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.reandroid.dex.smali.model;

import com.reandroid.dex.ins.Opcode;
import com.reandroid.dex.smali.*;

import java.io.IOException;

public abstract class SmaliInstructionPayload extends SmaliInstruction
        implements SmaliRegion {

    private final SmaliInstructionOperand operand;
    private final SmaliSet entries;

    public SmaliInstructionPayload(SmaliInstructionOperand operand){
        super();
        this.operand = operand;
        this.entries = new SmaliSet<>();

        this.operand.setParent(this);
        this.entries.setParent(this);
    }

    @Override
    public abstract int getCodeUnits();
    @Override
    public abstract Opcode getOpcode();
    public abstract T newEntry(SmaliReader reader) throws IOException;
    @Override
    public SmaliInstructionOperand getOperand() {
        return this.operand;
    }
    public SmaliSet getEntries() {
        return entries;
    }

    @Override
    public void append(SmaliWriter writer) throws IOException {
        getSmaliDirective().append(writer);
        getOperand().append(writer);
        writer.indentPlus();
        getEntries().append(writer);
        writer.indentMinus();
        getSmaliDirective().appendEnd(writer);
    }

    @Override
    public void parse(SmaliReader reader) throws IOException {
        reader.skipWhitespacesOrComment();
        setOrigin(reader.getCurrentOrigin());
        SmaliDirective directive = getSmaliDirective();
        SmaliParseException.expect(reader, directive);
        reader.skipSpaces();
        parseOperand(getOpcode(), reader);
        reader.skipWhitespacesOrComment();
        SmaliSet entries = getEntries();
        while (!directive.isEnd(reader)){
            T entry = newEntry(reader);
            entries.add(entry);
            entry.parse(reader);
            reader.skipWhitespacesOrComment();
        }
        reader.skipWhitespacesOrComment();
        SmaliParseException.expect(reader, getSmaliDirective(), true);
    }
    void parseOperand(Opcode opcode, SmaliReader reader) throws IOException {
        getOperand().parse(opcode, reader);
    }
}