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fix: operator overloading & static trait method references resolving to generic impls #3967

Merged
merged 11 commits into from
Jan 8, 2024
Merged

fix: operator overloading & static trait method references resolving to generic impls #3967

merged 11 commits into from
Jan 8, 2024

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jfecher
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@jfecher jfecher commented Jan 5, 2024 •
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Description

Problem*

Resolves #3964

Summary*

The core problem in #3964 stems from a trait method's generics being different from the corresponding impl's generics. So when the former was instantiated, and later tried to apply to the latter during monomorphization after an impl was selected, the latter would be unchanged. This was fixed by remembering the TraitMethodId during monomorphization and calling try_unify between the trait method's type and the impl method's type before monomorphizing the impl function. This gives type bindings to translate between the two.

Additional Context

  • In creating the above type bindings, we need to bind to the original type variables on the trait without instantiating them. This meant any further impl searches would see that trait as having its monomorphized type, rather than its generic type. This would break impl search since that trait/impl would no longer apply to all the types it used to. I've fixed this by allowing Type::substitute to substitute to already-bound type variables so that when the impl search later occurs and the type is instantiated, the instantiation automatically sheds the bindings after its (currently bound) type variables are swapped to fresh type variables.

Allowing substitution on already bound type variables is a bit concerning though. It's unclear if this could cause unsoundness later on. I'll open an issue to limit the scope of this by only allowing it during instantiate calls instead of all substitute calls. I've just implemented the change directly in this PR instead. I split substitute into substitute and force_substitute.

  • There's also a mostly unrelated change in this PR. function_meta now returns a reference instead of cloning the entire FunctionMeta which was quite wasteful. I'll work on breaking this out into a separate PR. (Edit: chore: Stop cloning FuncMeta #3968)

Documentation*

Check one:

  • No documentation needed.
  • Documentation included in this PR.
  • [Exceptional Case] Documentation to be submitted in a separate PR.

PR Checklist*

  • I have tested the changes locally.
  • I have formatted the changes with Prettier and/or cargo fmt on default settings.

@jfecher
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jfecher commented Jan 5, 2024 •
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There is also commented code I think I'll be reverting rather than removing Reverted

@jfecher
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jfecher commented Jan 8, 2024

Tests are passing now

@kevaundray kevaundray added this pull request to the merge queue Jan 8, 2024
Merged via the queue into master with commit f1de8fa Jan 8, 2024
30 checks passed
@kevaundray kevaundray deleted the jf/fix-generic-trait-static-method branch January 8, 2024 16:14
@kevaundray kevaundray mentioned this pull request Jan 8, 2024
Merged
github-merge-queue bot pushed a commit that referenced this pull request Jan 22, 2024
@kevaundray @TomAFrench
chore: Release Noir(0.23.0) (#3862)
5be9f9d 
🤖 I have created a release *beep* *boop*
---


<details><summary>0.23.0</summary>

## [0.23.0](v0.22.0...v0.23.0)
(2024-01-22)


### ⚠ BREAKING CHANGES

* Ban nested slices
([#4018](#4018))
* Breaking changes from aztec-packages
([#3955](#3955))
* Rename Arithmetic opcode to AssertZero
([#3840](#3840))
* remove circuit methods from noir_wasm
([#3869](#3869))

### Features

* Add `assert_max_bit_size` method to `Field`
([#4016](#4016))
([bc9a44f](bc9a44f))
* Add `noir-compiler` checks to `aztec_macros`
([#4031](#4031))
([420a5c7](420a5c7))
* Add a `--force` flag to force a full recompile
([#4054](#4054))
([27a8e68](27a8e68))
* Add dependency resolver for `noir_wasm` and implement `FileManager`
for consistency with native interface
([#3891](#3891))
([c29c7d7](c29c7d7))
* Add foreign call support to `noir_codegen` functions
([#3933](#3933))
([e5e52a8](e5e52a8))
* Add MVP `nargo export` command
([#3870](#3870))
([fbb51ed](fbb51ed))
* Add support for codegenning multiple functions which use the same
structs in their interface
([#3868](#3868))
([1dcfcc5](1dcfcc5))
* Added efficient field comparisons for bn254
([#4042](#4042))
([1f9cad0](1f9cad0))
* Assert maximum bit size when creating a U128 from an integer
([#4024](#4024))
([8f9c7e4](8f9c7e4))
* Avoid unnecessary range checks by inspecting instructions for casts
([#4039](#4039))
([378c18e](378c18e))
* Breaking changes from aztec-packages
([#3955](#3955))
([5be049e](5be049e))
* Bubble up `Instruction::Constrain`s to be applied as early as
possible. ([#4065](#4065))
([66f5cdd](66f5cdd))
* Cached LSP parsing
([#4083](#4083))
([b4f724e](b4f724e))
* Comparison for signed integers
([#3873](#3873))
([bcbd49b](bcbd49b))
* Decompose `Instruction::Cast` to have an explicit truncation
instruction ([#3946](#3946))
([35f18ef](35f18ef))
* Decompose `Instruction::Constrain` into multiple more basic
constraints ([#3892](#3892))
([51cf9d3](51cf9d3))
* Docker testing flow
([#3895](#3895))
([179c90d](179c90d))
* Extract parsing to its own pass and do it in parallel
([#4063](#4063))
([569cbbc](569cbbc))
* Implement `Eq` trait on curve points
([#3944](#3944))
([abf751a](abf751a))
* Implement DAP protocol in Nargo
([#3627](#3627))
([13834d4](13834d4))
* Implement generic traits
([#4000](#4000))
([916fd15](916fd15))
* Implement Operator Overloading
([#3931](#3931))
([4b16090](4b16090))
* **lsp:** Cache definitions for goto requests
([#3930](#3930))
([4a2140f](4a2140f))
* **lsp:** Goto global
([#4043](#4043))
([15237b3](15237b3))
* **lsp:** Goto struct member inside Impl method
([#3918](#3918))
([99c2c5a](99c2c5a))
* **lsp:** Goto trait from trait impl
([#3956](#3956))
([eb566e2](eb566e2))
* **lsp:** Goto trait method declaration
([#3991](#3991))
([eb79166](eb79166))
* **lsp:** Goto type alias
([#4061](#4061))
([dc83385](dc83385))
* **lsp:** Goto type definition
([#4029](#4029))
([8bb4ddf](8bb4ddf))
* **lsp:** Re-add code lens feature with improved performance
([#3829](#3829))
([8f5cd6c](8f5cd6c))
* Optimize array ops for arrays of structs
([#4027](#4027))
([c9ec0d8](c9ec0d8))
* Optimize logic gate ACIR-gen
([#3897](#3897))
([926460a](926460a))
* Prefer `AcirContext`-native methods for performing logic operations
([#3898](#3898))
([0ec39b8](0ec39b8))
* Remove range constraints from witnesses which are constrained to be
constants ([#3928](#3928))
([afe9c7a](afe9c7a))
* Remove truncation from brillig casts
([#3997](#3997))
([857ff97](857ff97))
* Remove truncations which can be seen to be noops using type
information ([#3953](#3953))
([cc3c2c2](cc3c2c2))
* Remove unnecessary predicate from `Lt` instruction
([#3922](#3922))
([a63433f](a63433f))
* Simplify chains of casts to be all in terms of the original `ValueId`
([#3984](#3984))
([2384d3e](2384d3e))
* Simplify multiplications by `0` or `1` in ACIR gen
([#3924](#3924))
([e58844d](e58844d))
* Support for u128
([#3913](#3913))
([b4911dc](b4911dc))
* Support printing more types
([#4071](#4071))
([f5c4632](f5c4632))
* Sync `aztec-packages`
([#4011](#4011))
([fee2452](fee2452))
* Sync commits from `aztec-packages`
([#4068](#4068))
([7a8f3a3](7a8f3a3))
* Use singleton `WasmBlackBoxFunctionSolver` in `noir_js`
([#3966](#3966))
([10b28de](10b28de))


### Bug Fixes

* Acir gen doesn't panic on unsupported BB function
([#3866](#3866))
([34fd978](34fd978))
* Allow abi encoding arrays of structs from JS
([#3867](#3867))
([9b713f8](9b713f8))
* Allow abi encoding tuples from JS
([#3894](#3894))
([f7fa181](f7fa181))
* Allow ast when macro errors
([#4005](#4005))
([efccec3](efccec3))
* Allow lsp to run inside of a docker container
([#3876](#3876))
([2529977](2529977))
* Bit-shifts for signed integers
([#3890](#3890))
([6ddd98a](6ddd98a))
* Checks for cyclic dependencies
([#3699](#3699))
([642011a](642011a))
* **debugger:** Crash when stepping through locations spanning multiple
lines ([#3920](#3920))
([223e860](223e860))
* Don't fail if no tests and the user didn't provide a pattern
([#3864](#3864))
([decbd0f](decbd0f))
* Fix advisory issue in cargo-deny
([#4077](#4077))
([19baea0](19baea0))
* Fixing dark mode background on the CTA button
([#3882](#3882))
([57eae42](57eae42))
* Fixup exports from `noir_wasm`
([#4022](#4022))
([358cdd2](358cdd2))
* Handle multiple imports in the same file
([#3903](#3903))
([219423e](219423e))
* Hoist constraints on inputs to top of program
([#4076](#4076))
([447aa34](447aa34))
* Implement missing codegen for `BlackBoxFunc::EcdsaSecp256r1` in
brillig ([#3943](#3943))
([2c5eceb](2c5eceb))
* Improve `nargo test` output
([#3973](#3973))
([3ab5ff4](3ab5ff4))
* Make `constant_to_radix` emit a slice instead of an array
([#4049](#4049))
([5cdb1d0](5cdb1d0))
* Operator overloading & static trait method references resolving to
generic impls ([#3967](#3967))
([f1de8fa](f1de8fa))
* Preserve brillig entrypoint functions without arguments
([#3951](#3951))
([1111465](1111465))
* Prevent `Instruction::Constrain`s for non-primitive types
([#3916](#3916))
([467948f](467948f))
* Remove panic for adding an invalid crate name in wasm compiler
([#3977](#3977))
([7a1baa5](7a1baa5))
* Return error rather instead of panicking on invalid circuit
([#3976](#3976))
([67201bf](67201bf))
* Search all levels of struct nesting before codegenning primitive types
([#3970](#3970))
([13ae014](13ae014))
* Update generics docs to mention we have traits now
([#3980](#3980))
([c2acdf1](c2acdf1))


### Miscellaneous Chores

* Ban nested slices
([#4018](#4018))
([f8a1fb7](f8a1fb7))
* Remove circuit methods from noir_wasm
([#3869](#3869))
([12d884e](12d884e))
* Rename Arithmetic opcode to AssertZero
([#3840](#3840))
([836f171](836f171))
</details>

<details><summary>0.39.0</summary>

## [0.39.0](v0.38.0...v0.39.0)
(2024-01-22)


### ⚠ BREAKING CHANGES

* Breaking changes from aztec-packages
([#3955](#3955))
* Rename Arithmetic opcode to AssertZero
([#3840](#3840))
* Remove unused methods on ACIR opcodes
([#3841](#3841))
* Remove partial backend feature
([#3805](#3805))

### Features

* Aztec-packages
([#3754](#3754))
([c043265](c043265))
* Breaking changes from aztec-packages
([#3955](#3955))
([5be049e](5be049e))
* Remove range constraints from witnesses which are constrained to be
constants ([#3928](#3928))
([afe9c7a](afe9c7a))
* Speed up transformation of debug messages
([#3815](#3815))
([2a8af1e](2a8af1e))
* Sync `aztec-packages`
([#4011](#4011))
([fee2452](fee2452))
* Sync commits from `aztec-packages`
([#4068](#4068))
([7a8f3a3](7a8f3a3))


### Bug Fixes

* Deserialize odd length hex literals
([#3747](#3747))
([4000fb2](4000fb2))
* Return error rather instead of panicking on invalid circuit
([#3976](#3976))
([67201bf](67201bf))


### Miscellaneous Chores

* Remove partial backend feature
([#3805](#3805))
([0383100](0383100))
* Remove unused methods on ACIR opcodes
([#3841](#3841))
([9e5d0e8](9e5d0e8))
* Rename Arithmetic opcode to AssertZero
([#3840](#3840))
([836f171](836f171))
</details>

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

---------

Co-authored-by: TomAFrench <tom@tomfren.ch>
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@kevaundray kevaundray kevaundray approved these changes

@TomAFrench TomAFrench Awaiting requested review from TomAFrench

@vezenovm vezenovm Awaiting requested review from vezenovm

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Panic when using trait static method references to generic impls
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@jfecher @kevaundray