Cannot read property 'id' of undefined

[Kobzol]

Hi, I'm trying to load a fairly large (20 MiB+) Cap file in the browser and it fails on this error:

TypeError: Cannot read property 'id' of undefined
    at Pointer../node_modules/capnp-ts/lib/serialization/pointers/pointer.js.Pointer.toString (pointer.js:44)
    at Object.format (util.js:263)
    at trackPointerAllocation (pointer.js:786)
    at new Pointer (pointer.js:30)
    at followFar (pointer.js:287)
    at followFars (pointer.js:299)
    at getTargetListElementSize (pointer.js:462)
    at isCompositeList (pointer.js:312)
    at Object.getContent (pointer.js:333)
    at getSize (struct.js:412)

Schema:

struct Dim3 {
    x @0 :Int32;
    y @1 :Int32;
    z @2 :Int32;
}

struct MemoryAccess {
    threadIdx @0 :Dim3;
    address @1 :Text;
    value @2 :Text;
}

struct Warp {
    accesses @0 :List(MemoryAccess);
    blockIdx @1 :Dim3;
    warpId @2 :Int32;
    debugId @3 :Int32;
    size @4 :UInt8;
    kind @5 :UInt8;
    space @6 :UInt8;
    typeIndex @7 :Int32;
    timestamp @8 :Text;
}

struct AllocRecord {
    address @0: Text;
    size @1: UInt64;
    elementSize @2: UInt32;
    space @3: UInt8;
    typeIndex @4: Int32;
    typeString @5: Text;
    nameIndex @6: Int32;
    nameString @7: Text;
    location @8: Text;
    active @9: Bool;
}

struct Trace {
    warps @0 :List(Warp);
    allocations @1: List(AllocRecord);
    kernel @2: Text;
    start @3: Float64;
    end @4: Float64;
    type @5: Text;
    gridDim @6: Dim3;
    blockDim @7: Dim3;
    warpSize @8: UInt32;
    bankSize @9: UInt32;
}

It happens both with unpacked and packed files, but only with some files (when I try a smaller file, it parses fine).

I'm using capnp-ts version 0.2.4 and the file was generated with Cap'n Proto v0.6.1 (in C++).
Do you have any idea what might be causing this?
Thanks.

[jdiaz5513]

The stacktrace is misleading; it's failing because of the traversal limit being exceeded (and then proceeding to fail to fail because the segment is not yet defined... that needs a patch!).

There is potentially a bug in how this is being accounted for since the docs on it were slim; do these same files load fine in another implementation?

[Kobzol]

I tried to load the file with the C++ implementation that generated it and that was successful. I'll try to reproduce the file and attach it here.