.Net Foundation Design Reviews, 8 Jan 2016

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From YouTube: .NET Core Design Reviews: Backlog review

Description

We'll look at the following items today:

• https://github.com/dotnet/corefx/pull/3878
• https://github.com/dotnet/corefx/pull/4607
• https://github.com/dotnet/corefx/issues/4636
• https://github.com/dotnet/corefx/issues/4708

A

All right we're in our life, so you wanna give us at least it all of you before we decide which one we tackle. First I think it will be helpful to set the stage of what you guys have been doing. Okay,.

B

So this one is the single signature, Nico English, basically there's a script right there. Basically, today you can get blogs and got a blog reader, but you have to know basically the true the structure of these wops and in order to parse that, like yeah helpers for being parts of the blogs, but you don't have anything that could guides you as soon as ones coming next or how to how to pick a symbolic representation into a tree kind of structure, shape types inside signatures, or you know all there be an array type.

B

Generic type is basically like you familiar with any kind of type, simple representation. It's like a tree structure and basically serialize these blobs, which is like tokens not metadata completely. You know some.

C

Sequences yeah, but basically represent.

B

These serialized trees, if you want even ring the back, so this is an API that lets you, you know, do.

D

That do that without sort.

B

Of you know having to inspect the bites and be, if you have your nose in the in the respect yep in terms of the cases to that are coming at you and then.

A

I think this is a just give it quick look.

E

A

The API, so it's quiet, it's quite a few. It guys you here right, animals.

C

Are one of the goals of the API is a lot to force you to some practical of getting? All of this can be used in Masan. Can.

D

C

Other places and.

A

In the second one is the debug directory from the PDB I guess or which one is down for the PE. So this is a.

C

Np file, there is a section or like they put their efforts in a little section, related blog. This is just a table which some information right to find the pdb into executable and some high knees. Who is the match? The pieces that are equally so people can find action, pd digital IC o----, so the structure is not really documented.

C

Some of it is documented in the PE specification. Some of it is not documented because you just didn't feel like it. They didn't feel like it and there is a bunch of Records as I like. Oh, this is just for follow-up, and nobody knows the beta section bunch.

D

C

Is native only right, so when I done is actually documented with stuff, it managed policy initiatives, and this is API to read this: it's not the API to read every single thing that can be there. Gracie I don't give in.

B

Mobile two things and then I just be back the couple other small. There was another few small changes to redo it and we said.

A

This one here that should.

B

A

B

Oh, no, it's fine they're, either all included. Okay. Couple of miscellaneous things I said are directly the.

A

Commended cymatics attributes being public yet so.

B

This limb stuff, like.

A

This smaller version I mean maybe, should look at this one first and then fill the remainder of with the other discussion. So this is basically you don't have an apex today. So that's have to make you with what we have here, but I think it's okay, uh so I guess this is just this all goes into. System reflects metadata right, like.

F

These days L yesterday well, there seems to be an enum at the top that doesn't go to reflection whether they goes to know yes, so.

D

G

H

F

It goes to little namespace yeah yeah. We did that for most of you, like.

B

F

A mercenary kingdoms.

B

Because we reuse a lot of the season, reflection enums, also that that come from the spec also liked her yeah.

D

I took this one, just it's like you can see it alongside you.

B

Know the other ones are very.

D

I

That's right so.

B

It fits their this.

I

When we didn't have you on the new space in.

B

Context like make sense, like yeah I mean we could put this in system reflection. Primitives like you could go there. The contract is rightly.

D

Like we, then we have like.

B

Portability, issues with respect to switch platforms are running on stuff, so we put it a little higher for some of that, but we we have some precedent that I holding it. It's really a big deal because I, if some of the homes like if you're not using like you know you could put these down. But it's probably not going to my right.

D

And it will buy you.

B

Versioning problems you have to have reflection, primitives, that's you know, make.

F

Sure, yea, though I have to say I, do your conclusion about the location, but then it kind of I almost wonder whether it's it makes sense to IDC naps for such a genetic arrangements. I.

A

Think that ship has several the other mediums already I mean the.

F

Question is young either way but like it's, you know, you're basically saying is specific to this SMB and then it kind of like it. It's kind of like.

B

A pragmatic like good up the gym right, so it's like, like you know it's really just like primitives like you know, we already have a botch in this namespace like, but you know it could be useful inside. You know in the sense of.

F

A play I, don't you know me but I'm saying that in practice probably is one be, and then you know it just it's in the real names patient and you know nobody else- can add this one. So but it's easy all right, but.

B

Yeah I think, given what we've I don't know, we have to hide out to see the namespace in context, but I think we have three or four other surface already moving life yeah.

F

For what yeah so- and it is the terminology like really.

B

D

B

F

A standard terminology: are you just invented it for the purpose of this? You know, so we.

B

Went back and forth right, originally I review I think this was public and then I made it internal because there were comments on the original API retirement.

J

Member because I realized that we weren't actually.

D

B

It we were just using in an implementation, and we went over in different places, have different terminology. What spec has like said, like I, don't I remove on fire and then the details like? Oh, don't ever use the word fire, and so what could be basically out late? This impasse- and these are the names that correspond to the CLS, like the CLS prefixes, which.

D

Are to me the most friendly.

B

D

B

With sort of the sort of FX you, but at the metadata view that they should be called, you know, you know a fire and add on and remove on it. What's what sin.

F

Razon is basically.

B

Inspired, it's got fire like you using ions like there's a fiery I'm saying this. Enum value corresponds to the invoke method on delicate. It corresponds to have arrived a proper you're in event. They have the accessors associated with them rights, of course, also. What kind of an access ur.

A

F

Sewing I know Adam remover.

B

But what is razor.

F

A

Used it since back Oh, what do you think yeah other.

F

A

F

It's the involvement of them, nothing, it's okay! It's not exposed to. Oh.

A

So Lee's room for the new language. That means I have to admit.

C

A

C

This excess like fire. This refers to the ocean race method yeah. Yes, we.

B

I just think using Calista v8, so slow I. We decided we discussed this on walk, because this one.

K

Was going to be public and he want.

A

Every time any.

K

B

Cuz there was somebody I think we planted on this last night, yeah.

A

I am finally timing. It I mean it's just like good.

B

Comments are missing, that was, as I was the.

A

B

Comments say the comments for each of these say like the specification this workhorse wants to this in the specification again.

D

B

D

B

Compliant that people have these briefings and then that you have I think it's okay.

A

So any more comments on that one. Otherwise.

L

So are there any other languages that use it? Like me, maybe they're, certainly good enough. Maybe extra bells noble zone yeah.

B

Like so big you see, think about these things is like the seal artisanal a know, anything about the right leg. We could like much about them for reflection like because when the compiler is like things are raised, something it has to actually pick up happening, call them at the other night. It doesn't so these things, that's why there's an other! It's like!

B

Oh, these two compilers could kind of agree on like you know, if there's another method and its name this- and that means this thing and I'm going to call it, but the seller wouldn't know any different. It would just be calling methods, I think that's just the right book, but.

A

For completeness, but you.

G

Can use after these are.

A

They do you think the goal of the P reader or the metadata video was just exposed. What is back, what is specify whether it's useful or not? Right, I mean it's.

L

Just this, this is this, take to be.

A

Complete right, correct.

C

Right- and you see now is you know, you know not actually by the reader, because the reader and recognizes yeah together the sector and exclusive Sarah, please, but the medical writer yeah say what you want, but.

F

Just going back to the last value of the razor, do we know of any case with anybody before to write it? The dude feels show me that we want to yes, it's exposed as why this is inspector. Will wanna make so.

K

Honestly, here's the thing you.

F

Can always write it because you can always continue nobody.

K

F

The scene up value so I am not sure if I degree than I would explore is the language. It's called a messiah. Oh yeah,.

B

That's the key.

K

Right now have a compiler for.

B

It and you can write, got fired other directly type in the pilot use, video yeah, I.

D

Whitewood so.

B

Making us know.

D

There's a little writer we.

B

Want to replace you want to make I lots of work with the new writer, and then you can be like, oh well. You have to cast 0x20 to some finger because we didn't want to expose it. Just put it there like that values in.

A

Like I me more, this way, if this would add, like 50 types out of you, even if it's just an invader that is named in this pack, it doesn't, it doesn't updating.

F

Grand many other artists.

A

Name is Oscar I thought.

F

There's no better I think my name is this is exhausted foreground for this thing, yeah.

B

I mean other is.

A

The beta right.

F

All right well seems very specialized in this case I kind of fool. Also, it's just feedback. What I would not add it to their own times. Okay, right I,.

A

Mean that one I don't feel very strongly like we have any other Indian since its reflection edited.

D

A

D

Have the leafy I can oh yeah.

A

Accepted and unfortunately, that is not it next for some reason.

D

um We can also open up to co-sponsor opposition.

D

A

Westernized right there's a reason why Celine decks because right now I only process, references.

E

A

Right, what's it called method, semantics.

M

G

A

What's nirav unique and whether.

D

These are all in the system or flexibility. Someone else did.

A

I guess so all the other things r PE specific right, which is why the employer executable right, I assume that H already exists. The.

B

Namespace re is so we already have to split and the there are the same day long, but we have all the facilities for key files and what.

F

B

And is the assembly see us compile.

F

This whole assembly is not see us combined, I, don't believe I will.

B

Be remarked will.

F

See else combined pulse is that much back I should gather as you guys, I'm Nancy else, come on in essence of this, and we have fine with it. The shoe.

B

Procedure uses pointers so.

F

That's, are you trolling us water.

A

F

Asking a real question, like you know, like it's Ewing than you show it, so we did. We use.

B

It's for anything that is like a size or like that, yeah.

C

B

It's like an okay kind of a thing that we need to make that we're negative doesn't mean anything. Then I'd be like four legs and stuff.

B

We did so we don't say less compliant, but but like doesn't, you doesn't have that property like we're casting all over the place, because there's on sign things all over the place where you don't want them like there's a few here, but like they're like for the most part legs, you know for the most part like we did, users like for all the lengths and offsets and all the things that you could be doing, arithmetic and then going to an array or whatever fall.

B

You know, but we jump point here as we go a few yeah where it makes them. This is a bit ironic that we're talking about the spec, but we're not falling this, but.

G

We r DP I should President this day doesn't say that everything else she.

F

Has complied was Jewish is, but you should have serious complaint alternatives, really things it or not. I.

I

J

F

J

C

Can seem us compliant? Please read the bite. The.

J

Dummy baby was.

C

F

I were so the only thing I would crack. First like this, you know the unsigned integers rule is like, so all that it's not very relevant today. It's just we don't tweet the tech. Must I cry, I would say you know that would be some value if we could mark the SMP, CLS compliant and a market knowledge, but then I think you have already so many aps. You must have this assemblies marked 0 stand by for false travel. Otherwise you I think.

B

We can make it through it and go through it. I, don't think we'll be as bad and it won't be ready, I'm thinking. So how do if you don't know either yeah so.

C

I I remember: we talked about the pointers in public API. There was an opinion to use white pointer instead of insulin for intern. Like an EPK. Are you.

I

Know but in the in PDR CEO.

C

Some time and by Padres, so what is the recommendation should be excellent.

F

Point mrs. pointer, so does I.

C

Think the way we did.

F

It in a lot of other cases, maybe ice is this done, see less compliant white, star or whatever star api and then a bite there any api, it's slower, because it doesn't generally some copies and whatnot that is basically dead, so see this combined substitute if you're working with you know and the language that doesn't support, pointers then well, you know in PT is not gonna hurt you either. You need to have some idea that extra copies to a byte array and the new controller. So basically you.

C

Can get them in.

F

Peter from.

C

Somewhere else right, you know you you can have, you can have an air a minute and forgive you see mo you get a PPR right, so you can in fact use pointers in equal.

F

Sample even to really doesn't support.

C

F

Yeah so I don't know, but working in general there may be some other languages that don't even support doing things like this correctly. Basically, just we know about faith, maria order.

B

F

Apples, my hey.

C

I

C

The problem is that you know with this level 80 hour. You know we become accepted by the right, because he we don't Matt manage memory ready. We need to create the gcn go inside in Dubai, try and get appointment right and I. Don't think! That's really good, no I'm, not sure.

F

C

We are not disposable.

F

So I don't know whenever you need to like exposing we identified that you create the biker I on the heap and you use it to expose it to the tree. Removal well.

C

So if I, my daughter reader operates on Okinawa courage, it takes the point, is I strange, but if it, if you could constructed invite all right would do by my daughter you do so. It would need to paint the byte array take.

I

The pointer I see what you're saying and now us get the nice tits not to call against.

F

Right description is noted by no disposable.

I

So where does its program right so.

C

B

Can wake it up another type, that's like we want to do that. Let's some prey! So, let's, like anyway,.

D

I'm not jesting that.

B

It is in fact that Oh My, Love Bug and we'll go in Markham and see less confined false. I don't think there's not many, ah but if we want that you know I mean that means feel like major version. Oh you don't care that much about view schwartz except like output, wire balls.

F

Not gonna make a mark major, brilliant I, didn't.

B

F

Don't care about t-shirts? Oh yeah I said that if we cut the process to modify their class spec, we probably should change it and say you know it's serious compared to have you ins, but you know here the value would be you either RCS, combined or not. Those of the program will be terrific.

C

In other words, the gold we enable using this API drums, even though they don't.

F

C

F

Know like if the coast of thing this is Saturday is probably watching it on the cost of this is much higher is probably not worth it because I don't even know like you in a crippling with us carrier. So.

C

Talking about the point of reactive won't make it easier to not make the pointer rock lyrics the point idea, because we keep even in the trap in crashes in Rodney's and pom pom pom cable takes like 10 demerits run. People don't make you do that you know so it just has so so here so I, you're here or item to add some API. It makes easier right about the point eight games so.

M

Anything else, on the shape of the time.

C

Alright, so just look this explanation here: the debug directory is the table right, it has entries run and each entry has a type which is like needham, which defines what the structure is updated into paper points to do. Paper has appointed to data in. Do you know, p profile?

C

I, do that's the data printer, all the video address in size and basic identifies the flopping epub, and but the structure of the data is not is physically included in the time frame, so it depends, and so so, if you want to read the entry, you can then check if you care about the type, if you do, then you go and find the reader for the block right, based on the a number you I'd in the only ones that are counted documenting our code view, which is the information of PDP and determine estate which ingest them simple record.

C

That says that the PE is that are mystical connected actually that the days are what one thing that we might want to change. I don't know the cheapest boss is going to document the deterministic thing because they need as long and they're going to determine paternity ding dong in the vehicle, but but they call it drip drop visible and it's like we.

C

So maybe we want to rename it to reproducible instead of reminiscing.

A

We know when the name is finalized in kind of uh huh they.

M

D

A

That way, we should pick the same name yeah. Well, then I was alias in the future.

F

To those usual, that's.

A

F

It it's your line, spec. What's it called that there is no sea otter? This.

C

Is already in operation comport OPD? So if you can open, if you can get to get up and do the specs of the equitable system of that you met our master.

F

C

M

So so I'm, sorry, okay, oh god,.

C

The baby onions really fast, not.

M

M

Thank God. They really used to see like the screen with here so.

C

Yeah you put this one fun yet this is my other looking good missing stuff.

C

See the types team you know that we have been going.

F

On this is a new thing with the new king ya,.

A

F

Generally, all right, so one one more question about the AP is on the previous page. There's this thing called data pontiff. Is it just an offset from the virtual address.

C

F

C

Is word that be eco, like you exist, for pointers to files like you have 0 file, there's basically three more sense from the beginning of the file and route. If virtue others is, are we in.

F

C

It's the offset.

F

In the file is now.

C

D

F

Developing for you our address, except now, it's absolutely it's absolute of 65. So why do we call it fighter not offset up.

J

Because that's how people.

F

Its currents or exhaust, maybe.

J

I swear if I don't.

F

Weird to call something a pointer that is in the ain't it makes it. People make the confuser it's me or any other PE instructors that I guess it's B's, always.

K

B

We kind of like there's this constant struggle when you do stuff like this respect. We follow this by cleaning or some other hanging anymore. I. Think we like.

B

We have to divert some touch with respect more in the metadata case, but generally as an acknowledgment to like to like, like in the space of metadata, because reflection is a pain because you know the bc allah's names for things, because they these things, these concepts have multiple names and then we can make the argument like mark or you know, but if somebody's looking at this, you know they're like looking at the p and being and not really a seem like it's not really the same arguments gonna necessarily apply.

E

Alright and then I guess: there's some API surgery get these guys right, yeah yeah! So.

C

The director hunter is already existing type; it just doesn't have constructed make.

F

C

F

It is invertible.

C

Stuff, it's liking, this one public and peter is just as two more methods to get with people directory and then read the data that we know how they are stuff differently. Specify this.

A

So what happens when these directories on present you get now now a.

C

Directory, don't you that I.

A

Football camp area for the for the first.

M

One year for that, but it's.

A

Obstruct by code view directory I'll, stick I.

F

A

The second yeah this one year, yeah.

C

We could know so you you passing entry which describe this is the enter indirectly OIC.

E

Realize everything will be there and it has checks. You.

C

Know whether that's valid.

E

Entry, whether it's called you and.

C

E

These are just parsing, the thing that give it or it essentially yeah.

C

Are single thing that that this.

F

Guy points to Jeff makes it so why do you go to this concert d Parker not PD, be like? Would it be better to call it to the PDB directory.

C

Right so the debug director is again from these lights, through various words around at size and Cody. You this again the name things like PB.

A

Is basically the.

C

Container that contains code unions, maybe is the.

A

D

C

Weekend this guy can point to portable DVD or.

C

A

Have any anything else are the only thing to have his method? Cement is attributed to poly beats us reflection matter than the other. One was Marcus, MDC less compliant true and my name is ray. Pearce's clear complain false. I think that's what it said right so.

F

We we should probably area I, one more circuit, York, there's a time on directory entry. Computers have directory entry now.

A

We have directory entry, it's not debug directory entry, I think! Oh sorry, yeah I thought don't be. My in I owe you yeah. So the phone already existed. Don't in the address right! Oh no will.

K

We miss that oh yeah I, don't know yeah no.

B

I haven't seen anyone hit it. At least we put all this in the digital darkroom. Can I desert I, don't know.

G

I think it's very.

J

C

G

Quiet but directory well cuz, there's a directory entry. I went maybe I'm like an API, something I or anyone.

L

G

Some kinda directory time, okay, so much I, don't know things. Oh, they.

C

Don't know get processed.

G

Them entry type yeah, Britain's info yeah,.

C

It's in the right career services, I.

G

You remember it's an ideological, active directory, okay,.

A

So likely could.

G

Collide yeah: let's.

A

F

Exchange you don't care so yeah. Isn't it actually active good.

A

Dinner, but if I would parse metadata from an active directory.

M

Img class well.

A

Alright, so then that's.

F

A

It's fine yeah, alright, so I think it's a party.

C

To do the activities yeah.

D

C

I think we should really check if they are anything you can do. Math, outbound5, I I, don't think we have any other keys, I. Think.

B

This is the reflection, another I don't think we do either because we decided the first round interview to put them replace. Oh yeah,.

C

Well make it is.

B

There's a trade-off.

L

B

Because I'm like, if you liked it saying maybe it's free specific just put into heaven and.

F

You know we put them in their own thinking that maybe they can be reused, but I wonder what they really can do that so that face. But there you can put it like muppet types of.

A

Alright, so use the sample code for parts and signatures jerry-san maker focus tool. It basically.

B

Is physically, oh yeah here is that I, if you scroll up a bit, there's something subtle discussion right? Okay, so basically the idea here is that you are going to make trees from these. Blobs came up and you're going to pick what the type node in the tree is your big something something you're going to hear going totally defiance.

B

What's a generic parameter, this is d type and then we're going to do this, like recursive descent part through the signature in a high things, and as we find that when you're coming back and saying all right, so first thing we say say remind of type int, we're gonna, say: okay, you mean your teeth. I frame then later on are like Oh, fine, an array, and so it's a commune array of in tenaya noticing I mean this generic instantiation. So it's like the way, basically, basically the provider and.

D

Using the term.

I

B

It's basically like the factory at least of these type notes, but I meaning it could be cashing so like for some for something. So I called it like provider, so basically I'm. This unit want this interface to pick t type. You want this interface and then you sort of as you hit things that have these signatures. You have it now at decode method that you can pass a provider in to get out t types from the plane like that are basically represented as you as you chose.

B

So that's the like approach, because you won't see that if this doesn't show the implementation.

M

Of this next level, so.

A

M

A

In order to cross up the tree, you clearly have to allocate so you can make it a location, three lights on.

M

This, like the idea, is that I.

A

Mean again, we could either create our own representation. Then everybody has to essentially relocate their own representation. So you basically inverted that it said. Well, you clearly have a symbol, representation for a type, so I just ask you to give me the one. So you just force a little bit of structure on the on the other thing, but and their.

B

Stupid but whatever head like, there's going to be some potential like impedance mismatch, Azure like like you, don't have exactly like you can't quite feelings, actly so, like maybe I, think I'm going to need this like it rolls on, like that, sometimes playing you want to put things on a parameter, node and other people on that type. Node, so I can reflection by ref is the type thing the skill are.

B

It's often considered that way, but like it also be thought of us, a property of the parameter so like I didn't want to have like 10. So if you look awesome like has it because I don't wanna have like I tried to avoid, having like a parameter like like having all the nodes in the tree, need.

D

To have engineering right because you could go that far.

B

In fact, lacrosse as internal I kind of work sewing, but it makes it guys.

D

B

Yeah, it makes so much it makes it very complicated. So this is an effort to like gonna strap all that to say that, like the goal is not 0 allocations and you'll find immutable arrays of G time join. The goal is not to make like a deep tree in that, like you know, but there.

C

Is no clear some trail this.

B

Is a little bit.

C

Higher level, if you were in 10 a picture just scan the signature for something you can do that yeah.

D

C

Have other right are they, but then you need to use. The second understand. Let me go give it. This is more convenient, but it's still on the level that it's very conservative politicians as as few as possible. It doesn't force and any structural new pipes, and it's a rather.

F

C

F

The providers have stainless card, so you can kind of see a you animate.

C

B

F

Then you can reuse them. Right fell out if s is very completely.

B

Functional so whatever never never liked. Yeah number doesn't remember anything in return. It's just yeah.

H

Rosen will create a single.

B

Food provider: well so they might have stayed. Actually that's actually not true, so they can't have state. You need that for the arm for decoding and generic parameter. It because.

G

F

Inside a signature stuff.

B

Like the third generic grounders, you need context. It's depending on depends how you want to represent the signature. Sometimes you literally just want to stop looking at bites and say: oh that's, the third generic parameter. Then you don't need that context, but if you want, if you want to correlate it pocket, you like it's the method and you it's a little project.

B

Apparently it would have to be because there's no, we could audit something I thought about adding in context hard, but I thought the provider could also provide the context. That's you can discuss that yeah.

A

That's what I added.

B

A good way yeah.

J

I would rather do great, but okay mostly to be back so.

B

Because, actually yeah today, that's what also does like division. You be like yeah as I did to create a new one with another Delta H.

K

Ok, so y la load of those.

C

Of the video, a pool of them interesting.

B

Can make it more also lets me get out TG contacts artists on their pass everywhere about them, but yeah have.

F

Taken care of now to football: where is the connector face, start class.

H

B

Was actually like.

H

B

Ir get up now, there's I also didn't finish it but like it did, there's also a custom, a decoder that uses the same thing and then there's also going to be a parser for reflection, type things they share like this hierarchy, so you can I mean I, have abstract classes. It can be absurdly option on sex, but.

C

G

The type system.

C

Necklace but changes, which is unlikely.

K

Original is what the benefit of being I wonder. So, at one time avoiding.

H

Valentine would be extra Nativity.

B

This people, having provided engineering to the week it gets trucks like you, have to allocate it so that it can carry just a little bit of pocket there's. Actually it causes a bunch of other wrong. You know the type infringement like the guy just got insanely messy, so I decided what not to do that. That was one of the reasons. I was an interface.

B

K

Be okay, good and then also like an open.

F

D

F

Bunch of tricks, / crafts to make them clothes, but you know that okay, I, don't significantly my own person.

G

We paid a lot more point: you're, making these trees.

B

Like that in beam of light, like you doing, if like this, if it's not super cheap, we're doing that contact like I, don't think this time we can measure it I, don't think in this context of, but you can after class I am aromatic sure.

D

What's your medium, is it done lotus, f1, yeah,.

A

D

Type of simple provider entity- something that's going to be the public api's of Rosalind I.

B

Just assume that no I just mean that that's it made up some types of all over there, so I think it was made up, but you were using because you're going to a dance for us or them well,.

H

Maybe internally.

B

But okay yeah students, it's like yet absolute. This is just a my name. This example.

C

Here another interesting point is that d type can be us string. Berlin.

H

And then you can just civilized the.

C

Signature ratio wise, it includes string which is like visualize this in a big booty like you, were dying for a cataclysm, yeah I'm sample. That's how I tested actually actually so Islam is pretty neat that we'd only do our part types. We can just drinks kolkata meet them. Oh the.

H

Displaced report.

H

B

These are the convenience at your voice to the decoder, your light, I know I'm, sure, something's, gotta, say I shouldn't: do it optional, optional parameters, so by that basically, the other convenience entry points, like make sake now, today, you're going to have blob, handle signature and next to them, you're now going to have this new thing to decode signature and now suddenly home, but it's that well, I gotta pass this provider. What's that? That's how you kind of discover this API.

B

If it also captures the captures the metadata reader for you, because we first, we don't generally need it, but we we pass it back to the provider for the most part and there's this corner case for win our team projections, where it's.

J

A no longer value type thing.

B

And the signature that can change so then we need to go back to the reader to figure out. If you know, is it like, we need to college yeah yeah. You think that the protection we need to know if it's a win md file. So but this is the options right now, so I've made it in flags, but I mean it's none or project class to volume type, which is basically.

D

What happens is.

B

Anyways you'll see that many options only we think that these should be on all the individual types are should be more of an extension stone.

D

A shot across group on Tom possession they're all going to be our guest Machine language that doesn't get out of a room. I.

B

Mean I can make them extensions, but then I need to like have access to the internal so like it's not going to be as I need to capture the reader. So it's big why it can be layered in the library, but then.

C

It's little bit particularly yeah. You can access.

B

An internal so drink it up, freezing generally I, don't make exception ethics when I'm cheating. Why I.

D

Don't like most about it.

B

In the same library, they generally have a show to put your you know: how have you cheated love.

A

Well, he's canadian.

H

You say already: she did enough for.

A

Left handed everything I try to I just.

B

Very good area points, but also okay, so these are interesting so like. If you look at that alone, signature and member reference, we already had to get kinds like followed, like they have two different structures based on like the first fight. So I got this way to like say which, which one should I July. Should I eat? Go right so for standalone can either be locals or can be a method and.

C

B

For remember reference, it can be a field or perfectly they have so much.

B

That's what you have this. We already have member reference kind. You don't see it, but it's the same pattern now, because I was also spent almost an.

C

Interest trap good guy, so.

J

The first bite bite of the sick, I.

B

C

It wasn't something else.

J

Give you that little signature yeah well, then you get kind of that. You check all antico.

B

J

But like a lot.

B

Of times you know it's a little cool because you got it from like the you got it from the thing that describes the method body and it was a local signature, so you have to call get kinda. Just called you go, look new will throw it yeah if you like, it'll, throw the operation. Why is it the good kinda, my good kind property, because it can't throw? That was the part that was the because we don't know right now. I have a blog backing this. We don't really know if it's about Kennedy.

B

So if you go get kinda, it's like yup garbage. That's going.

F

To throw bad image from and then we've got that point and then what people do you have a kind of the subscription do? I normally could you ever do such a serious? Oh.

C

F

Also arise rosen.

C

Be actually when we scan signature, we catch the exemption and just create a kind of excellent representation, and then, when on the venue, and to use that signature for something you will get a compiler resv and reduce it remains also. We already decided.

B

From the previous review to make the members kinda kind, the other reason is because oh do you like it. Generally speaking, all these struct records have basically properties for the things that are basically called in the like. These are the call these are the was of each one of these. Drugs represents a row of metadata.

B

The properties generally represent things that are like calls here, with what I'm a little bit farther quite like jumping over to the blob getting the first vice, it's not like so generally, when we do this, only a little, it's probably roughly as free in this case, but we generally have this distinction with like the things that are sure of like, like.

A

Database is sort of an outdoorsman, sir.

B

Like how do more work versus the things that are like basically like that? Is that exactly that, so there's a lot of get thanks, XX on these records, and it helps actually when consuming the library, because you can tell which are the things that are like you know, yeah some of them might look like they're searching exactly exactly so.

K

Still a little signature and shakers.

D

Your kind, our party, existing pics signature.

H

These are oriented.

B

H

B

Of all the stuff.

H

To or not I see, ya I feel that wrong. Yeah I just saw the company.

B

Doesn't already know Oh another.

H

In my butt, that's.

B

A new type little something there stand own signature exists, but it just has a log of it.

B

There's a special occasion refer to fields as having a signature feel talk soon. Yeah I, never.

H

Think about my husband having a secretary but I have this. If.

B

You, yes, okay, Lee, that's weird, but they do have a signature. I mean it's a signature, because it's like this constructive.

D

Types right not yet I just think it was a declaration against but makes it a good typedef forever. No, because of.

E

But array shape it.

K

Doesn't exist before it is all new right, so this is now so some new range stretches what it is, and so we get some we can discuss it later. It's just.

C

I really like to have to do the namespace things you know by the right above me and salads. You can be certain right: the right door, hi handsome baby, so.

F

B

More interfaces.

F

You can you like, these are the same more, can you take coke and there is these are the same ones. They will all become abstract class. They already everything.

G

That's all I very much that I'll just drive annunciation their inheritance here, but.

B

G

Are the hierarchy.

B

Here so that there's a segregation so that you can reuse this for other scenarios, where you don't have all the cases, for example, when you're parsing like we don't have these features when we have like public prototypes like or of david keene, actually did like the reflection, type name partner. There's another thing you need actually it's missing: it's like other parties, their daring attributes, for example, Laurie, and you need to parse them, so they as want to try to make a similar structure.

B

So you get like similar concepts documented once and basically Ryu is so like you can construct, but you can make these things from a from this name: you're parsing a name instead of decoding a blog, but then the individual elements won't be.

B

You know typedef they'll, be you know like something like you know, some other some other things like tightening parser will say like when it knows that. Okay, this this, this text is like not a comp constructed type. Then it's going to give you some some text to to represent to the to the to the platonic type right. But then, when you've been constructed, becomes the same concept, because now it's okay, it's now a g-type, and so so they can share the constructed types, but they can't share like the primitive, also.

C

May have a.

B

C

Unfortunately, I come on beside it, sometimes through the types of Springs and sometimes as boss right so we need to the readers, but eventually they will be referred to by the same symbolic. Oh yeah,.

F

So what is here what's genetic instance in the gate genetics? What does genetic instance, but in this compassion, the generic titles with those arguments, so it's a close genetic type. Is that would arrest, should it be called quote in hell? It's at your knuckle browser.

C

It can have a phat farm adversity, yeah.

F

C

To go, including my apartment, right, right, slow down coats in five times you.

B

Can, yes, that's what you mean by close, it's an instantiation I mean it's done shake. It can be instantiated with other.

I

Generators are.

B

With more tiring rounds so.

I

That doesn't mean like it's substituted,.

B

All the way, if the answer to me my goal, I think it's called generate instance, and that's what I saw with respect how'd.

K

It go it, it's.

B

K

She can't do that.

F

The genetic typing centres, instantiation right, I- think that's what it's called in spec hotel generic insta line is the new blonde, but it's but that's instantiation, not instance, I think it does this.what complete. That's why I asked, because instance I. Think, okay, you don't sorry me gamma ray.

I

F

C

On an object, oh yes, forgive institution is, if I hope, that's fine, but I think this like she might be named when we.

G

Toured shape in Europe that's from smash in bed in the drawing later.

K

B

What I mean I don't know if it's this way, I don't have a problem. I just haven't. You had engraved for accurate description for today. It's a record that describes the shape of your a bring it actually not bad name. How.

A

B

A

It if you don't want shape great definition right, you excited yeah, but.

B

It's not all right because I just doesn't have the tightest possibly be it's the rank, your mounts and sizes. That's what it is. I mean it's that's what's and it's even though they're a interval, this circle kind of know. Just these bites are the fairy she so I make a strut called reishi, yeah I.

A

B

A

B

Your I was asking the question about I: haven't I, don't think we have that elsewhere, but mostly these sounds and sizes do not see too much there in reflection in a couple places, but not us like a compound strike. Actually.

G

Scra is making its.

B

Appearance you too, so we had a whole discussion on emotion and be back there, and I said I already used as CRA wants in metadata. So.

A

Yeah I think we conclusively concluded that it's the best name, nobody likes something else, but it is by far the best and cook and my.

F

B

F

Is most of our discussion sections you Specter.

B

Quite a bit but yeah.

M

That can assess too many other didn't show up on the oreos change. The.

B

First time notice is.

M

B

Was like one unit volume I think we have so far, which we can alias then Antonio performance.

B

C

I could interrogate does it should be instantiation the spectrum all.

A

Right, okay! So when he up again like it's a quitting time.

B

Actually, its inheritance hierarchy, I'm can't work, is I, have to I think that you're trying to switch them all the abstract base times that might be it might be a person.

H

Can't even remember my own, this.

B

Game here mobile apps dunno, it will be anywhere. How would you do that? Everyone, so primitive and I ty provider can be collapsed into one, but.

F

I'll have to look at it, okay, so, but it's even my fight, if you basically you make I signature provided abstract, but the rest they interfaces. You know it doesn't come to me. I cannot wait until as much as awesome as much as it makes sense.

A

And I'm gonna have one other question.

F

Language is the consistency yeah. What.

A

Was the consistency.

F

Is that by default we do after class and.

A

J

F

If, if needed, okay.

A

So one question I have is like we believe, there's value in splitting those things oughta make them shareable, or was it not easier to just have one thing we're in certain contexts or things can never occur so.

B

We would have to duplicate some of.

A

These load, you typically get what we do not just have a single provider, they can handle everything and then, if you move.

C

A

Can handle everything is sound, but.

C

The problem is that when you want to just start something.

A

C

That meets just predicted that and nothing else you will need to like have all sorts of overrides the pronoun.

A

C

I, what is the idea if.

A

I provide a type provider, essentially your signature provider, that I implemented once for my symbols, so always ya. All.

C

Da don't tense when, where you write the compile that needs to be able to read ever in and interpret everything, that's.

D

What, if you just.

G

Look looking for something.

C

You know in customer motor.

G

Ignores you don't need to create.

C

G

Were you popular, but you have literally a separate implementation of that in NK? Don't see it here but like if you want to support.

B

Custom attributes, then you have to now support some more stuff like, for example, there's no way to know the size, how many lights to read and make should happen even when it got some attribute and even give me another assembly, the definite. So now like you need to blend this thing or me, ask you what's this enum? How big is it and that's kind of awkward right and then so they start to put them all together.

B

The provider gets really big and if you do not be like the other thing I like about this reason, I went to documents also like in documents the requirement plate. If you're providing custom attributes we can definitively, you can know which methods will be called like. Even if you may I seen, a lot of people do little one offs and they still do lots of throats or garbage returns because they're trying to find like one little thing in there, so you're still going to be some amount of that.

B

But the question is: if you just put one big provider cost, we just I, think it gets wet on I. Think it's too much, but you would.

C

Work but its audit I don't know what what the direction is it, but in the initialization, Doris I think if the number of conductors are keeping that we can call up some of those. So I don't know if this is always more than one.

H

C

Opposite but we said we put a primitive down to random, so in some cases is I think we should not have 15 touches them, because then we can see CIT screaming about having three for interfaces. I, yeah.

A

I mean I'm just asking cuz of you if you're, basically everything in one type and it's obviously it's trivial to have just an abstract page that way. I.

B

Mean originally originally the first time I wrote this I just had signature decoder, which was abstract class and everything was protected virtual and over only thinks of filming pieces.

B

That was certainly simple, then I started adding they custom attributes and then we started, and that was like the first feedback was well this you know I want custom attributes ever separated, so this design never falls from from all of that feedback, and so we make the provider I'll collapse, we're going to then say: why do we cops and then we're going to be back into the original code where we said like? Well, maybe we should split this out zone yeah the.

C

Debate with human one, a six person, I want to us not to bid well, this isn't as I'd prefer. If I want all, that's not reduced to be possible by my parcel and then I need to it whatever correct right. So then, then, has a big, very much.

A

So how do you so like I think we looked at other providers now, like I, think probably the decoders for their distinct type to look at I? Guess, yes,.

B

That's the one that typically.

A

B

To use this directly because of those convenience entry points, yep.

D

B

There are scenarios like you might be. You can do sort of like moles there's a couple of reasons one you might just have some bites that you want to like. Do you.

D

Want to interpret them as a signature, so.

B

You know you have don't have these metadata reader structures to hang off of another. Is you may actually be rocky? You might want to pick a type out of the middle of something and then see how far the blogger, your advances stuff, like that you can't do with it.

C

B

You mean I, think they're.

C

Doing in some cases where we just want to skip one type and read something.

B

C

B

That's why this type exists, but in the common case this is the guy that does all the work right. But in the common case that the denture that you saw mother will be creating this guy on your behind make Santa.

D

And just using it, so you only see.

B

The records in the provider, but the coders would think that actually because the work and calls the provider- and you can accentuate it- and there are scenarios for its been cheating, it.

A

Makes sense these lovely Dodi exists right, that's instructor supposed la.

B

Breeder already exists success. The things I just like has read and read es tan three-state post run the red lights fire so yeah, so yeah we thought we talked about. We can get this thing, mutable yeah and then having it at the constructor and.

G

B

Reason it might be, but how do it you see that our thing here sure we.

A

Are what was so as opposed to passing the bluff leader by r f+ in the constructor and make that thing beautiful, as opposed to having deck immutable? Because already a beautiful structure.

F

Readers mutable itself correct. Yes,.

A

Yeah, I think I personally like the fact that you pass them the reader.

B

I, don't have a strong preference lectures. My thinking is I. Try to make it mutable struggle until I can yes.

K

B

Would have been a lot. The last thing that, however,.

C

The signature the code is just zero, can be full of a kind of book reader that then provide more every night I.

F

Don't have a room: I, don't have a strong preference, but given that this thing is this, the decoder is this chart. You know like. Sometimes you want to do it. If it's a class, you want to have in status right completely, so you can passing the data in as opposed to having a few yeah, but it's just rod, so just click create new ones and then it's not immediately passed. But oh I.

B

See what you mean I'm of any shoulder, perhaps on what the Russian TV and that's not much residential good. So I think we probably gloss over some things that I wanted to talk about, but maybe yeah.

D

B

Definitely gives a good overview I had to like. There are some things related to like almost up. They were talking about last night. Custom attribute session will come, that's not.

J

True, it was a separate review, but.

B

Even with respect this region, we still have a few things of mine, but maybe we should just talk, apply in them and we decide to make changes yet and.

C

I think we make beats to this, and then we can quickly review the final. Damn.

D

C

K

Be great I think you start to figure out. The nation we show is.

B

You Jewish engines, this last thing: I talked about it, but the options is basically when Archie thing where, like the signature, there's actually bite. That's like this is a class, or this is a value type and then followed by like the token which slight redundant, because this thing, but unfortunately like the signature, Aspen specifies it's only in when.

D

You're digging.

B

In a few cases like I, forget was, like type, names are struck, but then type is a Class. A trees almost exception. So we go monday.

H

Eventually- and.

B

F

You see this is that you, the good schools, a you spooky to know I'm.

B

Circular glasses devices so actually I did seem interesting somebody, but having classes on the stack and on you and they wrote the signatures by putting value under the Constitution Friday. But.

H

B

Not what that's not the way today, it's acknowledged to see value in them pants. So they, when you say none, we just passed you this. So if you saw it like gloss over the provider is really quick right, like I thank y'all stop but like basically, they pass in this code right.

B

But if you don't, if you don't, if you saw that optional parameter, which was none, it's just going to pass you unresolved unresolved on result, because basically we just treat class or value type as the same thing, and then we don't have to worry about it. We just give you the token and like that, tells you if it's a classroom, our valiant I pray.

B

The scenario that discovers is the case where, like you're, trying to write wild awesome, which an intern tried to do and the feedback was like I can't I, don't know what to print here.

B

K

J

K

Nobody really date.

J

Other than a dozen I suppose it.

B

J

B

He might awesome might get into a situation where and it gets an involved thing in them and the things that's followed and then but I mean it's corner. Kids.

F

I currently, but what I asked asking whether you should remove this I think.

B

F

Know if one person you did it for a dozen, you know horrible under the future, at the IDI. Something I did it as we said that the principle of the design is to expose metal.

D

F

It is not try to that's right, hide it and idea it. So we had.

K

The other okay I'll talk offline about here yeah. I.

A

Mean I spend some time reading a novel on I mean I, I I've sale like the api's I mean I would need to be a little bit more about the flow because I used your early api section. Parson signature so have some context. Other people probably don't have.

D

A

Played with that shape, yet so I'm not, but I think I think the only the only thing that that I had the fish already covered was the context, but the context so yeah because.

B

I mean like at the same problem.

A

I wanted to pass him the containing method, for example, and you have to allocate essentially provider every single time. You killed something to just pass in the method right, but I think I solve this originally by making them all structs. So I didn't care that much you.

B

Can't do that because, yes, the box through the interface, what's.

F

Wait outside classroom yeah.

E

F

You're not follow me other soidiers. Why don't you make time? You know additional type parameter for the provider again TR, TR energy context. I can try that yeah I think.

I

You should write in our group, so I would really rather avoid allocating with providers I like provided to be a stable zone, but.

F

I

Have to say if they are status, I cannot find them in the program. No, no, no they're.

F

Staying for the immunity.

I

F

Estate, food and yet but if they are, if you change them to be stateless, then you kind of don't appear because.

B

H

Know the same time as I say it has one. So basically we.

B

Are at ER now we don't care about interface, abstract class or whatever, because you just make one I think TR would work better. The first thing I tried was making key provider, which is a mess because in here with like t provider is, is, is XYZ.

D

Nature from I signature.

B

Provider of tonight and then the time I try balls.

D

B

Is generic, but I think if we have a tea promised them to be opted out a version where she doesn't shake thing. You know: what's a bunch, you don't need the context, so I'm gonna have to have one things object in personal, like I, which I can actually do that, because I have an.

C

Advisory enough energy to poison yeah.

B

um But I actually can fix that I. Think: okay, I'll.

F

Be in the city, but also be aware that, like cor team, jetty yep, it's very sensitive to a screening more and more genetically yesterday's honest. It explodes something: cassano sheriff experience in doing the same.

I

F

In a lot of the guys that I create, because it's so useful in operating in avoiding allocations, yes, it increases, you know cochin size, but I hope that.

I

Everyone should.

F

Be smart enough I'm, you know making around but like cold cold science is not dead. People to this data size you might have in your hair, I I.

A

Don't like so I just go depends on the case, but yeah alright.

B

So I'll take that thing back. I will try to add the context. So we want to call conference for.

A

B

The thing is reviewing.

C

B

Days, I, don't know pleasure.

A

B

It's got the pass it to all just.

A

Make sure it can make that a stress right? Oh.

B

C

Last time, let's try it and see how the boots and let.

A

Me show it's a struct writer, because we'd have to allocate the context. It's also pretty up right, so we make a generic you need to be on sir Denis ordinary well.

B

All of them I mean in private practices like most common cages for this the two genetic parameters, but then it seems like a waste.

D

To drop it on the floor, if.

B

So a paucity of context right, like maybe it's useful for the other, for the other things, look, let's yeah, let's just a price on a glutton, oh yeah,.

C

In the hood, alright.

A

Cool then, next time just sending a pics for the for the final thing, and then we just tried reviewed on over email. That doesn't really another meeting. Does.

L

It work all right.