Gankra

bool
nsDisplayMask::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
                                       mozilla::wr::IpcResourceUpdateQueue& aResources,
                                       const StackingContextHelper& aSc,
                                       mozilla::layers::WebRenderLayerManager* aManager,
                                       nsDisplayListBuilder* aDisplayListBuilder)
{
  bool snap;
  float appUnitsPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
  nsRect displayBound = GetBounds(aDisplayListBuilder, &snap);

Gankra

RectWithSize device_rect = prim.local_clip_rect;
    device_rect.p0 -= prim.task.content_origin;
    device_rect.p0 *= uDevicePixelRatio;
    device_rect.size *= uDevicePixelRatio;
    vec2 local_pos = prim.task.common_data.task_rect.p0 + 
        clamp_rect(
            glyph_pos * res.scale + uDevicePixelRatio * (glyph.offset - prim.task.content_origin),
            device_rect);

Gankra

Assertion failure: mLastContentProcessedEvent <= mLastAPZProcessedEvent, at /Users/ABeingessner/dev/gecko/gfx/layers/apz/src/FocusState.cpp:32

#01: mozilla::layers::IAPZCTreeManager::ReceiveInputEvent(mozilla::WidgetInputEvent&, mozilla::layers::ScrollableLayerGuid*, unsigned long long*)[/Users/ABeingessner/dev/gecko/objdebug/dist/NightlyDebug.app/Contents/MacOS/XUL +0xff83bb]
#02: nsBaseWidget::DispatchInputEvent(mozilla::WidgetInputEvent*)[/Users/ABeingessner/dev/gecko/objdebug/dist/NightlyDebug.app/Contents/MacOS/XUL +0x2e3cff8]
#03: mozilla::widget::TextEventDispatcher::DispatchInputEvent(nsIWidget*, mozilla::WidgetInputEvent&, nsEventStatus&)[/Users/ABeingessner/dev/gecko/objdebug/dist/NightlyDebug.app/Contents/MacOS/XUL +0x2e61ab8]
#04: mozilla::widget::TextEventDispatcher::DispatchKeyboardEventInternal(mozilla::EventMessage, mozilla::WidgetKeyboardEvent const&, nsEventStatus&, void*, unsigned int, bool)[/Users/ABeingessner/dev/gecko/objdebug/dist/NightlyDebug.app/Contents/MacOS/XUL +0x2e62920]
#05: mo

Gankra

// Rust Library

#[repr(u8)]
pub enum DisplayItem {
    Fill(Rect, Color),
    Image { id: u32, bounds: Rect },
    ClearScreen,
}

#[repr(C)]

Gankra

<UnscaledFontFontconfig> 0x7f81769b25e0 1 AddRef 1 [thread 0x7f8190f854c0]
    #01: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x1b1e7c7]
    #02: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x1ae7e5a]
    #03: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x1af4d7d]
    #04: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x1af5ae5]
    #05: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x2c51af8]
    #06: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x16872d0]
    #07: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x1299e13]
    #08: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x12a1900]
    #09: ???[/home/gankro/gecko/objdebug/dist/bin/libxul.so +0x12a2a2b]

Gankra

I was contacted a few weeks ago by someone interested in my time working on Homestuck. I dumped a huge pile of thoughts and feels, and they wrote an article.

The article understandably is fairly edited, but I spent a bunch of time on my replies, and they're pretty personal, so I felt like archiving my response here. So here's the raw content of the email I sent:

---

So some disclaimers here: I don't have the best memory, and a lot of the relevant history here is content on the MSPA forums, which as far as I can tell have been completely annihilated from the internet. (a genuine tragedy) Consider everything I say to be suffixed with an "(I think?)" :)

Gankra

/// `*mut T` but non-zero and covariant.
///
/// This is often the correct thing to use when building data structures using
/// raw pointers, but is ultimately more dangerous to use because of its additional
/// properties. If you're not sure if you should use `Shared<T>`, just use `*mut T`!
///
/// Unlike `*mut T`, the pointer must always be non-null, even if the pointer
/// is never dereferenced. This is so that enums may use this forbidden value
/// as a discriminant -- `Option<Shared<T>>` has the same size as `Shared<T>`.
/// However the pointer may still dangle if it isn't dereferenced.

Gankra

__ZN7my_test21deserialize_webrender17hecde0d914cb271c7E:
	pushq	%rbp
	movq	%rsp, %rbp
	pushq	%r15
	pushq	%r14
	pushq	%r13
	pushq	%r12
	pushq	%rbx
	subq	$264, %rsp
	movq	%rdx, -264(%rbp)

Gankra

#![allow(dead_code)]

#[macro_use]
extern crate serde_derive;
extern crate serde;
extern crate bincode;

use serde::{Deserialize};
use std::{ptr, io, slice};

Gankra

__ZN7my_test16deserialize_from17hb61a0712b5bb1dfcE:
	pushq	%rbp
	movq	%rsp, %rbp
	pushq	%r14
	pushq	%rbx
	subq	$224, %rsp
	movq	%rdx, %rbx
	movq	%rbx, -144(%rbp)
	pxor	%xmm0, %xmm0
	movdqa	%xmm0, -192(%rbp)