SynthNoteList.cpp

/*  Copyright © 2007 Apple Inc. All Rights Reserved.
    
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#include "SynthNoteList.h"
#include <stdexcept>

void SynthNoteList::SanityCheck() const
{
    if (mState >= kNumberOfNoteStates) {
        throw std::runtime_error("mState is bad");
    }
    
    if (mHead == NULL) {
        if (mTail != NULL) 
            throw std::runtime_error("mHead is NULL but not mTail");
        return;
    }
    if (mTail == NULL) {
        throw std::runtime_error("mTail is NULL but not mHead");
    }
    
    if (mHead->mPrev) {
        throw std::runtime_error("mHead has a mPrev");
    }
    if (mTail->mNext) {
        throw std::runtime_error("mTail has a mNext");
    }
    
    SynthNote *note = mHead;
    while (note)
    {
        if (note->mState != mState)
            throw std::runtime_error("note in wrong state");
        if (note->mNext) {
            if (note->mNext->mPrev != note)
                throw std::runtime_error("bad link 1");
        } else {
            if (mTail != note)
                throw std::runtime_error("note->mNext is nil, but mTail != note");
        }
        if (note->mPrev) {
            if (note->mPrev->mNext != note)
                throw std::runtime_error("bad link 2");
        } else {
            if (mHead != note)
                throw std::runtime_error("note->mPrev is nil, but mHead != note");
        }
        note = note->mNext;
    }
}