Implement const-generics #360

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sb10q merged 4 commits from feat/const-generics into master 2023-12-08 18:07:32 +08:00
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Const generics are declared using e.g. T = ConstGeneric("T", int32), and const-generic parameters in classes are declared using class A(Generic[T]).

The ellipsis change is necessary since currently it causes a compilation error, and functions marked as extern are eagerly evaluated.

Const generics are declared using e.g. `T = ConstGeneric("T", int32)`, and const-generic parameters in classes are declared using `class A(Generic[T])`. The ellipsis change is necessary since currently it causes a compilation error, and functions marked as `extern` are eagerly evaluated.
derppening self-assigned this 2023-12-05 16:41:01 +08:00
derppening added 4 commits 2023-12-05 16:41:03 +08:00
derppening requested review from sb10q 2023-12-05 16:41:11 +08:00
derppening force-pushed feat/const-generics from 58d457c1f3 to 5266e9b48e 2023-12-05 17:07:39 +08:00 Compare
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v2: Add missing documentation

v2: Add missing documentation
derppening changed title from Implement const-generics to WIP: Implement const-generics 2023-12-06 11:37:50 +08:00
derppening force-pushed feat/const-generics from 5266e9b48e to 4fb634aaa7 2023-12-06 15:27:45 +08:00 Compare
derppening changed title from WIP: Implement const-generics to Implement const-generics 2023-12-06 15:27:55 +08:00
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v3: Re-introduced ConstGeneric class, implemented codegen for ...

v3: Re-introduced `ConstGeneric` class, implemented codegen for `...`
derppening force-pushed feat/const-generics from 4fb634aaa7 to 181756fb3c 2023-12-06 15:33:01 +08:00 Compare
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v4: Remove all references to Const

v4: Remove all references to `Const`
derppening force-pushed feat/const-generics from 181756fb3c to 921aec411b 2023-12-06 18:33:29 +08:00 Compare
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v5: Implement const generics for nac3artiq, minor cleanup

ARTIQ implementation is tested and working.

v5: Implement const generics for nac3artiq, minor cleanup ARTIQ implementation is tested and working.
derppening changed title from Implement const-generics to WIP: Implement const-generics 2023-12-06 21:00:29 +08:00
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Marked as WIP again due to some missing handling for ellipsis, specifically cases where ... are used in sub-expressions as placeholders, e.g. ... + 1.

Marked as WIP again due to some missing handling for ellipsis, specifically cases where `...` are used in sub-expressions as placeholders, e.g. `... + 1`.
derppening force-pushed feat/const-generics from 921aec411b to e7add9ea0d 2023-12-07 14:41:02 +08:00 Compare
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v6: Completed codegen refactoring for ellipsis expression - Ellipsis are now treated as the equivalent of todo!() of Rust

v6: Completed codegen refactoring for ellipsis expression - Ellipsis are now treated as the equivalent of `todo!()` of Rust
derppening force-pushed feat/const-generics from e7add9ea0d to 649874868a 2023-12-08 13:03:26 +08:00 Compare
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v7: Fixed some cases where codegen fails for ellipsis due to extraneous/missing terminators, removed all references to NonTypeVar

v7: Fixed some cases where codegen fails for ellipsis due to extraneous/missing terminators, removed all references to `NonTypeVar`
derppening changed title from WIP: Implement const-generics to Implement const-generics 2023-12-08 13:05:35 +08:00
sb10q reviewed 2023-12-08 13:08:35 +08:00
@ -3,3 +3,3 @@
from types import SimpleNamespace
from numpy import int32, int64
from typing import Generic, TypeVar
from typing import Any, Generic, TypeVar

Where is this used?

Where is this used?
Poster
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Was a leftover change from before, removed.

Was a leftover change from before, removed.
derppening marked this conversation as resolved
sb10q reviewed 2023-12-08 13:10:09 +08:00
@ -879,1 +880,4 @@
typevar: get_attr_id(typing_mod, "TypeVar"),
const_generic_dummy: id_fn
.call1((
builtins_mod.getattr("globals")

Won't this break if _ConstGenericDummy is not in scope of the current module?
Also it's not really a "dummy" if it plays such a role.

Won't this break if ``_ConstGenericDummy`` is not in scope of the current module? Also it's not really a "dummy" if it plays such a role.
Poster
Collaborator

The intention is that _ConstGenericDummy is from the ARTIQ library and used as a marker that the TypeVar is to be treated as a const generic variable.

The intention is that `_ConstGenericDummy` is from the ARTIQ library and used as a marker that the `TypeVar` is to be treated as a const generic variable.

I know. The two problems above remain.

I know. The two problems above remain.

If I understand correctly: After we implement module support, you could just import min_artiq and then this code will break, since it becomes min_artiq._ConstGenericMarker and not _ConstGenericMarker.

If I understand correctly: After we implement module support, you could just ``import min_artiq`` and then this code will break, since it becomes ``min_artiq._ConstGenericMarker`` and not ``_ConstGenericMarker``.
Poster
Collaborator

When we implement module support, we will probably have to refactor this entire logic anyways, because none, Option and virtual are all obtained this way. I assume we will do something like this (assuming that the min_artiq module is imported as min_artiq_mod:

id_fn
    .call1((min_artiq_mod.getattr("_ConstGenericMarker").unwrap(),)
    .and_then(|v| v.extract())
    .unwrap()

BTW, this works in the interpreter:

>>> import min_artiq
>>> min_artiq.ConstGeneric("T", int)
~T
When we implement module support, we will probably have to refactor this entire logic anyways, because `none`, `Option` and `virtual` are all obtained this way. I assume we will do something like this (assuming that the `min_artiq` module is imported as `min_artiq_mod`: ```rs id_fn .call1((min_artiq_mod.getattr("_ConstGenericMarker").unwrap(),) .and_then(|v| v.extract()) .unwrap() ``` BTW, this works in the interpreter: ```py >>> import min_artiq >>> min_artiq.ConstGeneric("T", int) ~T ```
sb10q reviewed 2023-12-08 13:11:18 +08:00
@ -27,3 +27,3 @@
impl fmt::Display for Location {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}: line {} column {}", self.file.0, self.row, self.column)
write!(f, "{}:{}:{}", self.file.0, self.row, self.column)

Should be a different PR.

Should be a different PR.
Poster
Collaborator

Split this and the builtin-list changes into #361 and #362.

Split this and the builtin-list changes into #361 and #362.
derppening force-pushed feat/const-generics from 649874868a to 6e26c3abb7 2023-12-08 15:59:58 +08:00 Compare
derppening force-pushed feat/const-generics from 6e26c3abb7 to 390b7cc5f4 2023-12-08 16:00:45 +08:00 Compare
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v8, v9: Split unrelated changes to other MRs, renamed _ConstGenericDummy to _ConstGenericMarker.

v8, v9: Split unrelated changes to other MRs, renamed `_ConstGenericDummy` to `_ConstGenericMarker`.
derppening force-pushed feat/const-generics from 390b7cc5f4 to 20607934a6 2023-12-08 18:00:02 +08:00 Compare
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v10: Fixed missing _ConstGenericMarker changes

v10: Fixed missing `_ConstGenericMarker` changes
derppening force-pushed feat/const-generics from 20607934a6 to 983f080ea7 2023-12-08 18:02:24 +08:00 Compare
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v11: Rebased onto master, fixed an incorrect usage of unreachable!

v11: Rebased onto `master`, fixed an incorrect usage of `unreachable!`
sb10q merged commit 983f080ea7 into master 2023-12-08 18:07:32 +08:00
sb10q deleted branch feat/const-generics 2023-12-08 18:07:34 +08:00
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Reference: M-Labs/nac3#360
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